forked from pool/s390-tools
a7f8ed0265
Lots of features implemented for SLES15 SP1. OBS-URL: https://build.opensuse.org/request/show/648783 OBS-URL: https://build.opensuse.org/package/show/Base:System/s390-tools?expand=0&rev=57
1024 lines
40 KiB
Diff
1024 lines
40 KiB
Diff
Subject: zkey: Man page updates
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From: Philipp Rudo <prudo@linux.ibm.com>
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Summary: zkey: Add support of protected key crypto for dm-crypt.
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Description: Support the usage of protected key crypto for dm-crypt disks in
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plain format by providing a tool to manage a key repository
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allowing to associate secure keys with disk partitions or logical
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volumes.
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Upstream-ID: f093d0bfd4242424515c6aa55c7b8ad94d233597
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Problem-ID: SEC1800
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Upstream-Description:
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zkey: Man page updates
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Add documentation for the new keystore related zkey commands.
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Signed-off-by: Ingo Franzki <ifranzki@linux.ibm.com>
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Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
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Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
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Signed-off-by: Philipp Rudo <prudo@linux.ibm.com>
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---
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zkey/zkey.1 | 870 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-----
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1 file changed, 811 insertions(+), 59 deletions(-)
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--- a/zkey/zkey.1
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+++ b/zkey/zkey.1
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@@ -1,38 +1,17 @@
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-.\" Copyright 2017 IBM Corp.
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+.\" Copyright IBM Corp. 2017, 2018
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.\" s390-tools is free software; you can redistribute it and/or modify
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.\" it under the terms of the MIT license. See LICENSE for details.
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.\"
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-.TH ZKEY 1 "February 2017" "s390-tools"
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+.TH ZKEY 1 "May 2018" "s390-tools"
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.SH NAME
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-zkey \- Generates, re-enciphers, and validates secure AES keys
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+zkey \- Manage secure AES keys
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.
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.
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.SH SYNOPSIS
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.B zkey
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-.BR generate | gen
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-.I secure\-key\-file
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-.RB [ \-\-keybits | \-k
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-.IB size ]
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-.RB [ \-\-xts | \-x ]
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-.RB [ \-\-clearkey | \-c
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-.IB clear\-key\-file ]
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-.RB [ \-\-verbose | \-V ]
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-.
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-.br
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-.B zkey
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-.BR validate | val
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-.I secure\-key\-file
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-.RB [ \-\-verbose | \-V ]
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-.
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-.br
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-.B zkey
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-.BR reencipher | re
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-.I secure\-key\-file
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-.RB [ \-\-to\-new | \-n ]
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-.RB [ \-\-from\-old | \-o ]
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-.RB [ \-\-output | \-f
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-.IB output\-file ]
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-.RB [ \-\-verbose | \-V ]
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+.I command
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+.RI [ secure\-key\-file ]
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+.RB [ OPTIONS ]
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.
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.PP
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.B zkey
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@@ -44,64 +23,194 @@ zkey \- Generates, re-enciphers, and val
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.
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.
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.SH DESCRIPTION
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-Use the \fBzkey\fP command to generate secure AES keys that are enciphered
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-with a master key of an IBM cryptographic adapter in CCA coprocessor mode.
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-You can also use the \fBzkey\fP command to validate and re-encipher secure
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+Use the \fBzkey\fP tool to generate and manage secure AES keys that are
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+enciphered with a master key of an IBM cryptographic adapter in CCA coprocessor
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+mode. You can also use the \fBzkey\fP tool to validate and re-encipher secure
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AES keys.
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.PP
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+The secure keys can either be stored in a file in the file system, or
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+in the secure key repository. The default location of the secure key repository
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+is \fB/etc/zkey/repository\fP. Set environment variable \fBZKEY_REPOSITORY\fP
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+to point to a different location to use a different secure key repository
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+location. Keys stored in a secure key repository inherit the permissions from
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+the repository directory (except write access for other users, which is always
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+denied). The default repository location \fB/etc/zkey/repository\fP is created
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+with group \fBzkeyadm\fP as owner and mode \fB770\fP. Thus all secure keys
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+created in that repository are owned by group \fBzkeyadm\fP. Anyone that
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+is supposed to access secure keys in the secure key repository must be part of
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+group \fBzkeyadm\fP.
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+.PP
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+When storing the secure key in a key repository, additional information, such as
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+a textual description of the key, can be associated with a secure key.
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+You can associate a secure key with one or multiple cryptographic adapters
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+(APQNs) that are set up with the same CCA master key.
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+You can also associate a secure key with one or multiple volumes
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+(block devices), which are encrypted using dm-crypt with the secure key. The
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+volume association also contains the device-mapper name, separated by a colon,
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+used with dm-crypt. A specific volume can only be associated with one secure
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+key.
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+.PP
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The generated secure key is saved in a file with a size of 64 or 128 bytes.
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-The file contains an AES key of 128, 192, or 256 bits enciphered with the
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-master key of the CCA cryptographic adapter.
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+The file contains an AES key with a length of 128, 192, or 256 bits. The key is
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+enciphered with the master key of the CCA cryptographic adapter.
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Secure keys that are used for the XTS cipher mode can be 128 or 256 bits
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-in size, because XTS requires two concatenated secure keys.
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+in size.
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+.
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.
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.
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+.SH COMMANDS
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+The \fBzkey\fP tool can operate in two modes. When argument
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+.I secure\-key\-file
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+is specified then it operates on the secure key contained in the specified file.
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+This applies to commands \fBgenerate\fP, \fBvalidate\fP, and \fBreencipher\fP.
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+When the
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+.B \-\-name
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+option is specified then it operates on a secure key contained in the secure
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+key repository.
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.
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-.SH USAGE
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+.PP
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.SS "Generating secure AES keys"
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+.
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+.B zkey
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+.BR generate | gen
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+.I secure\-key\-file
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+.RB [ \-\-keybits | \-k
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+.IB size ]
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+.RB [ \-\-xts | \-x ]
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+.RB [ \-\-clearkey | \-c
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+.IB clear\-key\-file ]
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+.RB [ \-\-verbose | \-V ]
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+.
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+.PP
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+.B zkey
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+.BR generate | gen
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+.B \-\-name | \-N
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+.IB key-name
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+.RB [ \-\-description | \-d
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+.IB description ]
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+.RB [ \-\-volumes | \-l
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+.IB volume1:dmname1[,volume2:dmname2[,...]] ]
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+.RB [ \-\-apqns | \-a
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+.IB card1.domain1[,card2.domain2[,...]] ]
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+.RB [ \-\-sector-size | \-S
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+.IB bytes ]
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+.RB [ \-\-keybits | \-k
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+.IB size ]
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+.RB [ \-\-xts | \-x ]
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+.RB [ \-\-clearkey | \-c
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+.IB clear\-key\-file ]
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+.RB [ \-\-verbose | \-V ]
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+.PP
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Use the
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.B generate
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command to generate a new secure AES key either randomly within the CCA
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cryptographic adapter, or from a clear AES key specified as input. When specifying
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-a clear key as input, the clear key should be kept at a secure place, or be
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+a clear key as input, the clear key should be kept in a secure place, or be
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securely erased after creation of the secure key. The secure key itself does
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not need to be kept secure, because it can only be used together with a
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CCA cryptographic adapter that contains the master key with which the secure
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key was generated.
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+.PP
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+The generated secure key can either be stored in a file in the file system,
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+or in the secure key repository. To store the generated secure key in a
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+file, specify the file name with option \fIsecure\-key\-file\fP. To store the
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+secure key in the secure key repository, specify the name of the key using the
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+.B --name
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+option. When storing the secure key in a key repository,
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+additional information can be associated with a secure key using the
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+.B --description
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+,
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+.B --volumes
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+,
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+.B --apqns
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+, or the
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+.B --sector-size
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+options.
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.
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.SS "Validating secure AES keys"
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+.
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+.B zkey
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+.BR validate | val
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+.I secure\-key\-file
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+.RB [ \-\-verbose | \-V ]
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+.
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+.PP
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+.B zkey
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+.BR validate | val
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+.RB [ \-\-name | \-N
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+.IB key-name ]
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+.RB [ \-\-verbose | \-V ]
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+.PP
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Use the
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.B validate
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command to validate an existing secure key.
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-It checks if the specified file contains a valid secure key.
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+It checks if the specified file or repository entry contains a valid secure key.
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It also displays the attributes of the secure key, such as key sizes, whether
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-it is a secure key that can be used for the XTS cipher mode, and the master key
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-register with which the secure key is enciphered.
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+it is a secure key that can be used for the XTS cipher mode, the master key
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+register (CURRENT or OLD) with which the secure key is enciphered, and other key
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+attributes. For further information about master key registers, see the
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+\fBreencipher\fP command.
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+.PP
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+The secure key can either be contained in a file in the file system, or in a
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+secure key repository. To validate a secure key contained in a file, specify
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+the file name with option \fIsecure\-key\-file\fP. To validate secure keys
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+contained in the secure key repository, specify the name of the key
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+or a pattern containing wildcards using the
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+.B --name
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+option. When wildcards are used you must quote the value.
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+If neither option \fIsecure\-key\-file\fP nor option
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+.B --name
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+are specified, then all secure keys contained in the key repository
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+are validated.
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.
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.SS "Re-encipher existing AES secure keys"
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+.
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+.B zkey
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+.BR reencipher | re
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+.I secure\-key\-file
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+.RB [ \-\-to\-new | \-n ]
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+.RB [ \-\-from\-old | \-o ]
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+.RB [ \-\-output | \-f
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+.IB output\-file ]
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+.RB [ \-\-verbose | \-V ]
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+.PP
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+.B zkey
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+.BR reencipher | re
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+.RB [ \-\-name | \-N
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+.IB key-name ]
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+.RB [ \-\-apqns | \-a
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+.IB card1.domain1[,card2.domain2[,...]] ]
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+.RB [ \-\-to\-new | \-n ]
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+.RB [ \-\-from\-old | \-o ]
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+.RB [ \-\-in-place | \-i ]
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+.RB [ \-\-staged | \-s ]
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+.RB [ \-\-complete | \-c ]
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+.RB [ \-\-verbose | \-V ]
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+.PP
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Use the
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.B reencipher
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command to re-encipher an existing secure key with a new master key.
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-A secure key have to be re-enciphered, when the master key of the CCA
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-cryptographic adapter is being changed.
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+A secure key bust be re-enciphered when the master key of the CCA
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+cryptographic adapter changes.
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.PP
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-The CCA cryptographic adapter has 3 different registers to store
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+The CCA cryptographic adapter has three different registers to store
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master keys:
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.RS 2
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.IP "\(bu" 2
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-The \fPCURRENT\fP register contains the current master key.
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+The \fBCURRENT\fP register contains the current master key.
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.
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.IP "\(bu" 2
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The \fBOLD\fP register contains the previously used master key.
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Secure keys enciphered with the master key contained in the \fBOLD\fP
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-register canstill be used until the master key is changed again.
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+register can still be used until the master key is changed again.
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.
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.IP "\(bu" 2
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The \fBNEW\fP register contains the new master key to be set.
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The master key in the \fBNEW\fP register cannot be used until it is made
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-the current master key. Note that a secure key can be proactively
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-re-enciphered with the master key in the \fBNEW\fP register before
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-the new master key is made the current one.
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+the current master key. You can pro-actively re-encipher a secure key with the
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+\fBNEW\fP master key before this key is made the \fBCURRENT\fP key. Use the
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+.B \-\-to-new
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+option to do this.
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.RE
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.PP
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Use the
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@@ -110,13 +219,12 @@ option to re-encipher a secure key that
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the master key in the \fBOLD\fP register with the master key in the
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\fBCURRENT\fP register.
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.PP
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-Use the
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-.B \-\-to\-new
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-option to proactively re-encipher a secure key that is currently
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-enciphered with the master key in the \fBCURRENT\fP register with
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-the master key in the \fBNEW\fP register.
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.PP
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-If both options are specified, a secure key that is currently enciphered
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+If both the
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+.B \-\-from-old
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+and
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+.B \-\-to-new
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+options are specified, a secure key that is currently enciphered
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with the master key in the \fBOLD\fP register is re-enciphered with the
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master key in the \fBNEW\fP register.
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.PP
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@@ -127,11 +235,310 @@ If currently enciphered with the master
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it is re-enciphered with the master key in the \fBCURRENT\fP register.
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If it is currently enciphered with the master key in the \fBCURRENT\fP
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register, it is re-enciphered with the master key in the \fBNEW\fP register.
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+If for this case the \fBNEW\fP register does not contain a valid master key,
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+then the re-encipher operation fails.
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+.PP
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+The secure key can either be contained in a file in the file system, or in a
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+secure key repository. To re-encipher a secure key contained in a file,
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+specify the file name with option \fIsecure\-key\-file\fP. To re-encipher
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+secure keys contained in the secure key repository, specify the name of the key
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+or a pattern containing wildcards using the
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+.B --name
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+option. When wildcards are used you must quote the value.
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+You can also specify the
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+.B --apqns
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+option to re-encipher those secure
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+keys which are associated with the specified cryptographic adapters (APQNs).
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+You can use wildcards for the APQN specification.
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+When wildcards are used you must quote the value.
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+If both option
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+.B --name
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+and option
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+.B --apqns
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+are specified then all secure keys
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+contained in the key repository that match both patterns are re-enciphered.
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+If all both options are omitted, then all secure keys contained in the key
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+repository are re-enciphered.
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+.PP
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+Re-enciphering a secure key contained in the secure key repository can be
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+performed \fBin-place\fP, or in \fBstaged\fP mode.
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+.PP
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+\fB"In-place"\fP immediately replaces the secure key in the repository with
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+the re-enciphered secure key. Re-enciphering from \fBOLD\fP to \fBCURRENT\fP is
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+performed in-place per default. You can use option \fB--in-place\fP to force an
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+in-place re-enciphering for the \fBCURRENT\fP to \fBNEW\fP case. Be aware that
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+a secure key that was re-enciphered in-place from \fBCURRENT\fP to \fBNEW\fP
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+is no longer valid, until the new CCA master key has been made the current one.
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+.PP
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+\fBStaged\fP mode means that the re-enciphered secure key is stored in a
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+separate file in the secure key repository. Thus the current secure key is still
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+valid at this point. Once the new CCA master key has been set (made active), you
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+must rerun the reencipher command with option \fB--complete\fP to complete the
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+staged re-enciphering. Re-enciphering from \fBCURRENT\fP to \fBNEW\fP is
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+performed in staged mode per default. You can use option \fB--staged\fP to force
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+a staged re-enciphering for the \fBOLD\fP to \fBCURRENT\fP case.
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.PP
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.B Note:
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-The \fBreencipher\fP command requires the IBM CCA Host Library (libcsulcca.so)
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+The \fBreencipher\fP command requires the CCA host library (libcsulcca.so)
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to be installed.
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.
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+.SS "Import existing AES secure keys into the secure key repository"
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+.
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+.B zkey
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+.BR import | im
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+.I secure\-key\-file
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+.B \-\-name | \-N
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+.IB key-name
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+.RB [ \-\-description | \-d
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+.IB description ]
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+.RB [ \-\-volumes | \-l
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+.IB volume1:dmname1[,volume2:dmname2[,...]] ]
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+.RB [ \-\-apqns | \-a
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+.IB card1.domain1[,card2.domain2[,...]] ]
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+.RB [ \-\-sector-size | \-S
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+.IB bytes ]
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+.RB [ \-\-verbose | \-V ]
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+.
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+.PP
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+Use the
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+.B import
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+command to import an existing secure key contained in a file into the the
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+secure key repository. When importing a secure key in a key repository,
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+additional information can be associated with a secure key using the
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+.B --description
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+,
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+.B --volumes
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+,
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+.B --apqns
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+, or the
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+.B --sector-size
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+options.
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+.
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+.SS "Export AES secure keys from the secure key repository"
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+.
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+.B zkey
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+.BR export | ex
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+.I secure\-key\-file
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+.B \-\-name | \-N
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+.IB key-name
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+.RB [ \-\-verbose | \-V ]
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+.
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+.PP
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+Use the
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+.B export
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+command to export an existing secure key contained in the secure key repository
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+to a file in the file system. Specify the name of the key that is to be exported
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+using the
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+.B --name
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+option. You cannot use wildcards.
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+When wildcards are used you must quote the value.
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+The exported secure key also remains in the secure key repository.
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+.
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+.SS "List AES secure keys contained in the secure key repository"
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+.
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+.B zkey
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+.BR list | li
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+.RB [ \-\-name | \-N
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+.IB key-name ]
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+.RB [ \-\-volumes | \-l
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+.IB volume1[:dmname1][,volume2[:dmname2][,...]] ]
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+.RB [ \-\-apqns | \-a
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+.IB card1.domain1[,card2.domain2[,...]] ]
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+.RB [ \-\-verbose | \-V ]
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+.
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+.PP
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+Use the
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+.B list
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+command to display a list of secure keys contained in the secure key repository.
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+You can filter the displayed list by key name, associated volumes, and
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+associated cryptographic adapters (APQNs). You can use wildcards for the key
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+name, associated APQNs, and associated volumes. The device-mapper name of an
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+associated volume can be omitted; if it is specified then only those keys are
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+listed that are associated with the specified volume and device-mapper name.
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+.PP
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+The
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+.B list
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+command displays the attributes of the secure keys, such as key sizes,
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+whether it is a secure key that can be used for the XTS cipher mode, the textual
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+description, associated cryptographic adapters (APQNs) and volumes, the
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+sector size, and timestamps for key creation, last modification and last
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+re-encipherment.
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+.
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+.SS "Remove existing AES secure keys from the secure key repository"
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+.
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+.B zkey
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+.BR remove | rem
|
|
+.B \-\-name | \-N
|
|
+.IB key-name
|
|
+.RB [ \-\-force | \-F ]
|
|
+.RB [ \-\-verbose | \-V ]
|
|
+.
|
|
+.PP
|
|
+Use the
|
|
+.B remove
|
|
+command to remove an existing secure key from the secure key repository.
|
|
+Specify the name of the key that is to be removed using the
|
|
+.B --name
|
|
+option. You cannot use wildcards. The remove command prompts for
|
|
+a confirmation, unless you specify the
|
|
+.B --force
|
|
+option.
|
|
+.PP
|
|
+.B Note:
|
|
+When removing a secure key that is associated with one or multiple volumes,
|
|
+a message informs you about the associated volumes. When the secure key is
|
|
+removed, these volumes can no longer be used, unless you have a backup of the
|
|
+secure key.
|
|
+.
|
|
+.SS "Change existing AES secure keys contained the secure key repository"
|
|
+.
|
|
+.B zkey
|
|
+.BR change | ch
|
|
+.B \-\-name | \-N
|
|
+.IB key-name
|
|
+.RB [ \-\-description | \-d
|
|
+.IB description ]
|
|
+.RB [ \-\-volumes | \-l
|
|
+.IB [+|-]volume1:dmname1[,volume2:dmname2[,...]] ]
|
|
+.RB [ \-\-apqns | \-a
|
|
+.IB [+|-]card1.domain1[,card2.domain2[,...]] ]
|
|
+.RB [ \-\-sector-size | \-S
|
|
+.IB bytes ]
|
|
+.RB [ \-\-verbose | \-V ]
|
|
+.
|
|
+.PP
|
|
+Use the
|
|
+.B change
|
|
+command to change the description, the associated volumes, the associated
|
|
+cryptographic adapters (APQNs), and the sector size of a secure key contained
|
|
+in the secure key repository. Specify the name of the key that is to be changed
|
|
+using the
|
|
+.B --name
|
|
+option. You cannot use wildcards.
|
|
+.PP
|
|
+You can set (replace), add, or
|
|
+remove volume and cryptographic adapters (APQN) associations. To set
|
|
+(replace) an association, specify the association with the
|
|
+.B --volumes
|
|
+or the
|
|
+.B --apqns
|
|
+options. To add an association,
|
|
+specify the new association prefixed with a \fI+\fP with the
|
|
+.B --volumes
|
|
+or the
|
|
+.B --apqns
|
|
+options. To remove an association,
|
|
+specify the association to remove prefixed with a \fI-\fP with the
|
|
+.B --volumes
|
|
+or the
|
|
+.B --apqns
|
|
+options. You cannot mix \fI+\fP and
|
|
+\fI-\fP in one specification. You can either add or remove (or set) the
|
|
+associations with one command.
|
|
+.PP
|
|
+.B Note:
|
|
+The secure key itself cannot be changed, only information about the secure
|
|
+key is changed. To rename a secure key, use the \fBrename\fP command.
|
|
+To re-encipher a secure key with a new CCA master key, use the \fBreencipher\fP
|
|
+command.
|
|
+.
|
|
+.SS "Rename existing AES secure keys in the secure key repository"
|
|
+.
|
|
+.B zkey
|
|
+.BR rename | ren
|
|
+.B \-\-name | \-N
|
|
+.IB key-name
|
|
+.B \-\-new-name | \-w
|
|
+.IB new-key-name
|
|
+.RB [ \-\-verbose | \-V ]
|
|
+.
|
|
+.PP
|
|
+Use the
|
|
+.B rename
|
|
+command to rename an existing secure key in the secure key repository.
|
|
+Specify the name of the key that is to be renamed using the
|
|
+.B --name
|
|
+option and the new name using the
|
|
+.B --new-name
|
|
+option. You cannot use wildcards.
|
|
+.
|
|
+.SS "Copy (duplicate) existing AES secure keys in the secure key repository"
|
|
+.
|
|
+.B zkey
|
|
+.B copy | co
|
|
+.RB \-\-name | \-N
|
|
+.IB key-name
|
|
+.B \-\-new-key-name | \-w
|
|
+.IB new-name
|
|
+.RB [ \-\-volumes | \-l
|
|
+.IB volume1:dmname1[,volume2:dmname2[,...]] ]
|
|
+.RB [ \-\-verbose | \-V ]
|
|
+.
|
|
+.PP
|
|
+Use the
|
|
+.B copy
|
|
+command to copy (duplicate) an existing secure key in the secure key repository.
|
|
+Specify the name of the key that is to be copied using the
|
|
+.B --name
|
|
+option and the name of the copied key using the
|
|
+.B --new-name
|
|
+option. You cannot use wildcards.
|
|
+.PP
|
|
+.B Note:
|
|
+When copying a secure key, the volume associations are not copied, because
|
|
+a specific volume can only be associated with a single secure key. Specify the
|
|
+.B --volumes
|
|
+option to associate different
|
|
+volumes with the copied secure key, or use the \fBchange\fP command to associate
|
|
+volumes afterwards.
|
|
+.
|
|
+.SS "Generate crypttab entries for volumes associated with secure AES keys"
|
|
+.
|
|
+.B zkey
|
|
+.BR crypttab | cryptt
|
|
+.RB [ \-\-volumes | \-l
|
|
+.IB volume1[:dmname1][,volume2[:dmname2][,...]] ]
|
|
+.RB [ \-\-verbose | \-V ]
|
|
+.
|
|
+.PP
|
|
+Use the
|
|
+.B crypttab
|
|
+command to generate crypttab entries using the \fBplain\fP dm-crypt mode
|
|
+for volumes that are associated with secure keys contained in the secure key
|
|
+repository. Specify the
|
|
+.B --volumes
|
|
+option to limit the list
|
|
+of volumes where crypttab entries are generated for. You can use wildcards.
|
|
+When wildcards are used you must quote the value.
|
|
+The device-mapper name of an associated volume can be omitted; if it is
|
|
+specified then only those volumes with the specified volume and device-mapper
|
|
+name are selected.
|
|
+.
|
|
+.SS "Generate cryptsetup commands for volumes associated with secure AES keys"
|
|
+.
|
|
+.B zkey
|
|
+.BR cryptsetup | crypts
|
|
+.RB [ \-\-volumes | \-l
|
|
+.IB volume1[:dmname1][,volume2[:dmname2][,...]] ]
|
|
+.RB [ \-\-run | \-r ]
|
|
+.RB [ \-\-verbose | \-V ]
|
|
+.
|
|
+.PP
|
|
+Use the
|
|
+.B cryptsetup
|
|
+command to generate \fBcryptsetup plainOpen\fP commands for volumes that are
|
|
+associated with secure keys contained in the secure key repository. Specify the
|
|
+.B --volumes
|
|
+option to limit the list
|
|
+of volumes where cryptsetup commands are generated for. You can use wildcards.
|
|
+When wildcards are used you must quote the value.
|
|
+The device-mapper name of an associated volume can be omitted; if it is
|
|
+specified then only those volumes with the specified volume and device-mapper
|
|
+name are selected. Specify the
|
|
+.B --run
|
|
+option to run the generated cryptsetup commands.
|
|
+.
|
|
+.
|
|
.
|
|
.
|
|
.SH OPTIONS
|
|
@@ -139,13 +546,13 @@ to be installed.
|
|
.TP
|
|
.BR \-k ", " \-\-keybits\~\fIsize\fP
|
|
Specifies the size of the AES key to be generated in bits.
|
|
-Valid sizes are 128, 192, and 256 bits. Secure keys for use with the
|
|
+Valid values are 128, 192, and 256. Secure keys for use with the
|
|
XTS cipher mode can only use keys of 128 or 256 bits.
|
|
The default is 256 bits.
|
|
.TP
|
|
.BR \-x ", " \-\-xts
|
|
-Generates a secure AES key for the XTS cipher mode. A secure AES key for
|
|
-the XTS cipher mode consist of two concatenated secure keys.
|
|
+Generates a secure AES key for the XTS cipher mode that consist of two
|
|
+concatenated secure keys.
|
|
.TP
|
|
.BR \-c ", " \-\-clearkey\~\fIclear\-key\-file\fP
|
|
Specifies a file path that contains the clear AES key in binary form.
|
|
@@ -154,6 +561,49 @@ determines the size of the AES key. If
|
|
is specified, the size of the specified file must match the specified
|
|
key size. Valid file sizes are of 16, 24, or 32 bytes, and of 32 or 64
|
|
bytes for keys to be used with the XTS cipher mode.
|
|
+.TP
|
|
+.BR \-N ", " \-\-name\~\fIkey-name\fP
|
|
+Specifies the name of the secure key in the secure key repository.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-d ", " \-\-description\~\fIdescription\fP
|
|
+Specifies a textual description for the secure key in the secure key repository.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-l ", " \-\-volumes\~\fIvolume1:dmname1[,volume2:dmname2[,...]]\fP
|
|
+Specifies a comma-separated list of volumes (block devices) that are
|
|
+associated with the secure AES key in the repository. These volumes are to be
|
|
+encrypted using dm-crypt with the secure AES key. The volume association also
|
|
+contains the device-mapper name, separated by a colon, used with dm-crypt.
|
|
+A specific volume can only be associated with a single secure key.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-a ", " \-\-apqns\~\fIcard1.domain1[,card2.domain2[,...]]\fP
|
|
+Specifies a comma-separated list of cryptographic adapters in CCA
|
|
+coprocessor mode (APQN) which are associated with the secure AES key in the
|
|
+repository. Each APQN association specifies a card and domain number separated
|
|
+by a period (like lszcrypt displays it). When at least one APQN is specified,
|
|
+then the first one is used to generate the key. If no APQNs are specified,
|
|
+then an APQN is selected automatically. All specified APQNs must be online.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-S ", " \-\-sector-size\~\fIbytes\fP
|
|
+Specifies the sector size in bytes used with dm-crypt. It must be a power of two
|
|
+and in the range 512 - 4096 bytes. If omitted, the system default sector size
|
|
+is used.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.
|
|
+.
|
|
+.
|
|
+.SS "Options for the validate command"
|
|
+.TP
|
|
+.BR \-N ", " \-\-name\~\fIkey-name\fP
|
|
+Specifies the name of the secure key in the secure key repository. You can
|
|
+use wildcards to select multiple secure keys in the secure key repository.
|
|
+When wildcards are used you must quote the value.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.
|
|
+.
|
|
.
|
|
.SS "Options for the reencipher command"
|
|
.TP
|
|
@@ -168,7 +618,256 @@ master key in the OLD register with the
|
|
.BR \-f ", " \-\-output\~\fIoutput\-file\fP
|
|
Specifies the name of the output file to which the re-enciphered secure key
|
|
is written. If this option is omitted, the re-enciphered secure key
|
|
-is replaced in the file that currently contains the secure key.
|
|
+is replaced in the file that currently contains the secure key. This option is
|
|
+only used for secure keys stored in a file in the file system. It is not valid
|
|
+for keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-N ", " \-\-name\~\fIkey-name\fP
|
|
+Specifies the name of the secure key in the secure key repository. You can
|
|
+use wildcards to select multiple secure keys in the secure key repository.
|
|
+When wildcards are used you must quote the value.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-a ", " \-\-apqns\~\fIcard1.domain1[,card2.domain2[,...]]\fP
|
|
+Specifies a comma-separated list of cryptographic adapters in CCA
|
|
+coprocessor mode (APQNs). You can use wildcards in the APQN specification.
|
|
+All secure keys contained in the secure key repository
|
|
+which are associated with the specified APQNs are re-enciphered.
|
|
+Each APQN specifies a card and domain number separated by a period (like
|
|
+lszcrypt displays it).
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-i ", " \-\-in-place
|
|
+Forces an in-place re-enciphering of a secure AES key contained in the secure
|
|
+key repository. "In-place" immediately replaces the secure key in the repository
|
|
+with the re-enciphered secure key.
|
|
+Re-enciphering from OLD to CURRENT is performed in-place per default.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-s ", " \-\-staged
|
|
+Forces that the re-enciphering of a secure AES key contained in the secure key
|
|
+repository is performed in staged mode. Staged mode means that the re-enciphered
|
|
+secure key is stored in a separate file in the secure key repository. Thus the
|
|
+current secure key is still valid at this point. Once the new CCA master key has
|
|
+been set (made active), you must rerun the reencipher command with option
|
|
+\fB--complete\fP to complete the staged re-enciphering.
|
|
+Re-enciphering from CURRENT to NEW is performed in staged mode per default.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-p ", " \-\-complete
|
|
+Completes a staged re-enciphering. Use this option after the new CCA master key
|
|
+has been set (made active). This option replaces the secure key by its
|
|
+re-enciphered version in the secure key repository.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.
|
|
+.
|
|
+.
|
|
+.
|
|
+.SS "Options for the import command"
|
|
+.TP
|
|
+.BR \-N ", " \-\-name\~\fIkey-name\fP
|
|
+Specifies the name of the secure key in the secure key repository.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-d ", " \-\-description\~\fIdescription\fP
|
|
+Specifies a textual description for the secure key in the secure key repository.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-l ", " \-\-volumes\~\fIvolume1:dmname1[,volume2:dmname2[,...]]\fP
|
|
+Specifies a comma-separated list of volumes (block devices) which are
|
|
+associated with the secure AES key in the repository. These volumes are to be
|
|
+encrypted using dm-crypt with the secure AES key. The volume association also
|
|
+contains the device-mapper name, separated by a colon, used with dm-crypt.
|
|
+A specific volume can only be associated with a single secure key.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-a ", " \-\-apqns\~\fIcard1.domain1[,card2.domain2[,...]]\fP
|
|
+Specifies a comma-separated list of cryptographic adapters in CCA
|
|
+coprocessor mode (APQN) which are associated with the secure AES key in the
|
|
+repository. Each APQN association specifies a card and domain number separated
|
|
+by a period (like lszcrypt displays it). All specified APQNs must be online.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-S ", " \-\-sector-size\~\fIbytes\fP
|
|
+Specifies the sector size in bytes used with dm-crypt. It must be a power of two
|
|
+and in the range 512 - 4096 bytes. If omitted, the system default sector size
|
|
+is used.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.
|
|
+.
|
|
+.
|
|
+.SS "Options for the export command"
|
|
+.TP
|
|
+.BR \-N ", " \-\-name\~\fIkey-name\fP
|
|
+Specifies the name of the secure key in the secure key repository. You cannot
|
|
+use wildcards.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.
|
|
+.
|
|
+.
|
|
+.SS "Options for the list command"
|
|
+.TP
|
|
+.BR \-N ", " \-\-name\~\fIkey-name\fP
|
|
+Specifies the name of the secure key in the secure key repository. You can
|
|
+use wildcards to select multiple secure keys in the secure key repository.
|
|
+When wildcards are used you must quote the value.
|
|
+Only keys with names that match the pattern are listed.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-l ", " \-\-volumes\~\fIvolume1[:dmname1][,volume2[:dmname2][,...]]\fP
|
|
+Specifies a comma-separated list of volumes (block devices) which are
|
|
+associated with the secure AES key in the repository. Only those keys are
|
|
+listed, which are associated with the specified volumes.
|
|
+The volume association also contains the device-mapper name, separated by a
|
|
+colon, used with dm-crypt. You can omit the device-mapper name; if it is
|
|
+specified then only those keys are listed that are associated with the
|
|
+specified volume and device-mapper name. You can use wildcards to specify
|
|
+the volumes and device-mapper names.
|
|
+When wildcards are used you must quote the value.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-a ", " \-\-apqns\~\fIcard1.domain1[,card2.domain2[,...]]\fP
|
|
+Specifies a comma-separated list of cryptographic adapters in CCA
|
|
+coprocessor mode (APQN) which are associated with the secure AES key in the
|
|
+repository. Only those keys are listed, which are associated with the specified
|
|
+APQNs. Each APQN association specifies a card and domain number separated
|
|
+by a period (like lszcrypt displays it). You can use wildcards in the APQN
|
|
+specification.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.
|
|
+.
|
|
+.
|
|
+.SS "Options for the remove command"
|
|
+.TP
|
|
+.BR \-N ", " \-\-name\~\fIkey-name\fP
|
|
+Specifies the name of the secure key in the secure key repository. You cannot
|
|
+use wildcards.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-F ", " \-\-force\fP
|
|
+The user is prompted to confirm the removal of a secure key from the secure
|
|
+key repository. Use this option to remove a secure key without prompting for
|
|
+a confirmation.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.
|
|
+.
|
|
+.
|
|
+.SS "Options for the change command"
|
|
+.TP
|
|
+.BR \-N ", " \-\-name\~\fIkey-name\fP
|
|
+Specifies the name of the secure key in the secure key repository. You cannot
|
|
+use wildcards.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-d ", " \-\-description\~\fIdescription\fP
|
|
+Specifies a textual description for the secure key in the secure key repository.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-l ", " \-\-volumes\~\fI[+|-]volume1:dmname1[,volume2:dmname2[,...]]\fP
|
|
+Specifies a comma-separated list of volumes (block devices) which are
|
|
+associated with the secure AES key in the repository. These volumes are to be
|
|
+encrypted using dm-crypt with the secure AES key. The volume association also
|
|
+contains the device-mapper name, separated by a colon, used with dm-crypt.
|
|
+To add a volume to the associated volumes, prefix the volume with a \fI+\fP.
|
|
+To remove a volume from the associated volumes, prefix the volume with a \fI-\fP.
|
|
+To set (replace) the volume association do not specify a prefix.
|
|
+You cannot mix \fI+\fP and \fI-\fP in one specification. You can either add or
|
|
+remove (or set) the associations with one command.
|
|
+A specific volume can only be associated with a single secure key.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-a ", " \-\-apqns\~\fI[+|-]card1.domain1[,card2.domain2[,...]]\fP
|
|
+Specifies a comma-separated list of cryptographic adapters in CCA
|
|
+coprocessor mode (APQN) which are associated with the secure AES key in the
|
|
+repository. Each APQN association specifies a card and domain number separated
|
|
+by a period (like lszcrypt displays it).
|
|
+To add an APQN to the associated APQNs, prefix the APQN with a \fI+\fP.
|
|
+To remove an APQN from the associated APQNs, prefix the APQN with a \fI-\fP.
|
|
+To set (replace) the APQN association do not specify a prefix.
|
|
+You cannot mix \fI+\fP and \fI-\fP in one specification. You can either add or
|
|
+remove (or set) the associations with one command.
|
|
+All APQNs being added or set (replaced) must be online.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-S ", " \-\-sector-size\~\fIbytes\fP
|
|
+Specifies the sector size in bytes used with dm-crypt. It must be a power of two
|
|
+and in the range 512 - 4096 bytes. If omitted, the system default sector size
|
|
+is used. Specify \fI0\fP to un-set the sector size so that the system default
|
|
+is used.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.
|
|
+.
|
|
+.
|
|
+.SS "Options for the rename command"
|
|
+.TP
|
|
+.BR \-N ", " \-\-name\~\fIkey-name\fP
|
|
+Specifies the name of the secure key in the secure key repository. You cannot
|
|
+use wildcards.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-w ", " \-\-new-name\~\fInew-key-name\fP
|
|
+Specifies the new name of the secure key in the secure key repository.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.
|
|
+.
|
|
+.
|
|
+.SS "Options for the copy command"
|
|
+.TP
|
|
+.BR \-N ", " \-\-name\~\fIkey-name\fP
|
|
+Specifies the name of the secure key to be copied in the secure key repository.
|
|
+You cannot use wildcards.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-w ", " \-\-new-name\~\fInew-key-name\fP
|
|
+Specifies the new name of the secure key in the secure key repository.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-l ", " \-\-volumes\~\fIvolume1:dmname1,volume2:dmname2[,...]]\fP
|
|
+Volume associations are not copied, because a volume can only be associated
|
|
+with a single secure key. To associate different volumes with the copied
|
|
+secure AES key, specify a comma-separated list of volumes (block devices).
|
|
+These volumes are to be encrypted using dm-crypt with the secure AES key. The
|
|
+volume association also contains the device-mapper name, separated by a colon,
|
|
+used with dm-crypt.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.
|
|
+.
|
|
+.
|
|
+.SS "Options for the crypttab command"
|
|
+.TP
|
|
+.BR \-l ", " \-\-volumes\~\fIvolume1[:dmname1][,volume2[:dmname2][,...]]\fP
|
|
+Specifies a comma-separated list of volumes (block devices) which are
|
|
+associated with secure AES keys in the repository.
|
|
+The volume association also contains the device-mapper name, separated by a
|
|
+colon, used with dm-crypt. You can omit the device-mapper name; if it is
|
|
+specified then only those keys are selected that are associated with the
|
|
+specified volume and device-mapper name. You can use wildcards to specify
|
|
+the volumes and device-mapper names.
|
|
+When wildcards are used you must quote the value.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.
|
|
+.
|
|
+.
|
|
+.SS "Options for the cryptsetup command"
|
|
+.TP
|
|
+.BR \-l ", " \-\-volumes\~\fIvolume1[:dmname1][,volume2[:dmname2][,...]]\fP
|
|
+Specifies a comma-separated list of volumes (block devices) which are
|
|
+associated with secure AES keys in the repository.
|
|
+The volume association also contains the device-mapper name, separated by a
|
|
+colon, used with dm-crypt. You can omit the device-mapper name; if it is
|
|
+specified then only those keys are selected that are associated with the
|
|
+specified volume and device-mapper name. You can use wildcards to specify
|
|
+the volumes and device-mapper names.
|
|
+When wildcards are used you must quote the value.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.TP
|
|
+.BR \-r ", " \-\-run\fP
|
|
+Runs the generated cryptsetup commands. When an execution of a cryptsetup
|
|
+command fails, no further cryptsetup commands are executed, and zkey ends
|
|
+with an error.
|
|
+This option is only used for secure keys contained in the secure key repository.
|
|
+.
|
|
+.
|
|
.
|
|
.SS "General options"
|
|
.TP
|
|
@@ -186,16 +885,25 @@ Displays version information and exits.
|
|
.SH EXAMPLES
|
|
.TP
|
|
.B zkey generate seckey.bin
|
|
-Generates a 256-bit secure AES key and stores it in file 'seckey.bin'.
|
|
+Generates a random 256-bit secure AES key and stores it in file 'seckey.bin'.
|
|
.TP
|
|
.B zkey generate seckey.bin \-\-keybits 128 \-\-xts
|
|
-Generates a 128-bit secure AES key for the XTS cipher mode and stores it
|
|
+Generates a random 128-bit secure AES key for the XTS cipher mode and stores it
|
|
in file 'seckey.bin'.
|
|
.TP
|
|
.B zkey generate seckey.bin \-\-clearkey clearkey.bin
|
|
Generates a secure AES key from the clear key in file 'clearkey.bin' and
|
|
stores it in file 'seckey.bin'.
|
|
.TP
|
|
+.B zkey generate --name seckey
|
|
+Generates a random 256-bit secure AES key and stores it in the secure key
|
|
+repository under the name 'seckey'.
|
|
+.TP
|
|
+.B zkey generate --name seckey --volumes /dev/dasdc1:encvol --apqns 03.004c
|
|
+Generates a random 256-bit secure AES key and stores it in the secure key
|
|
+repository under the name 'seckey' and associates it with block
|
|
+device '/dev/dasdc1' and device-mapper name 'encvol', and APQN '03.004c'.
|
|
+.TP
|
|
.B zkey reencipher seckey.bin \-\-from\-old
|
|
Re-enciphers the secure key in file 'seckey.bin' which is currently enciphered
|
|
with the master key in the OLD register with the master key in the CURRENT
|
|
@@ -207,5 +915,49 @@ Re-enciphers the secure key in file 'sec
|
|
with the master key in the CURRENT register with the master key in the NEW
|
|
register, and saves the re-enciphered secure key to file 'seckey2.bin'.
|
|
.TP
|
|
+.B zkey reencipher --name seckey
|
|
+Re-enciphers the secure key 'seckey' in the secure key repository.
|
|
+.TP
|
|
+.B zkey reencipher --apqns 03.004c
|
|
+Re-enciphers all secure keys contained in the secure key repository that are
|
|
+associated with APQN '03.004c'.
|
|
+.TP
|
|
.B zkey validate seckey.bin
|
|
Validates the secure key in file 'seckey.bin' and displays its attributes.
|
|
+.TP
|
|
+.B zkey validate --name seckey
|
|
+Validates the secure key 'seckey' in the secure key repository and displays its
|
|
+attributes.
|
|
+.TP
|
|
+.B zkey list
|
|
+Lists all secure keys in the secure key repository and displays its
|
|
+attributes.
|
|
+.TP
|
|
+.B zkey list --name '*key'
|
|
+Lists all secure keys in the secure key repository with names ending with 'key'
|
|
+and displays its attributes.
|
|
+.TP
|
|
+.B zkey change --name seckey --volumes +/dev/dasdc2:encvol2
|
|
+Changes the secure key 'seckey' in the secure key repository and adds
|
|
+volume '/dev/dasdc2' with device-mapper name 'encvol2' to the list of associated
|
|
+volumes of this secure key.
|
|
+.TP
|
|
+.B zkey change --name seckey --apqns -03.004c
|
|
+Changes the secure key 'seckey' in the secure key repository and removes
|
|
+APQN '03.004c' from the list of associated APQNs of this secure key.
|
|
+.TP
|
|
+.B zkey crypttab --volumes '/dev/dasdc*'
|
|
+Generates crypttab entries for all volumes that match the pattern '/dev/dasdc*'.
|
|
+.TP
|
|
+.B zkey cryptsetup --volumes '*:enc_dasd'
|
|
+Generates cryptsetup commands for the volumes that uses the device-mapper
|
|
+name 'enc_dasd'.
|
|
+.
|
|
+.SH ENVIRONMENT
|
|
+.TP
|
|
+.BR ZKEY_REPOSITORY
|
|
+If
|
|
+.B $ZKEY_REPOSITORY
|
|
+is set, it specifies the location of the secure key repository.
|
|
+If it is not set, then the the default location of the secure key
|
|
+repository is \fB/etc/zkey/repository\fP.
|
|
\ No newline at end of file
|