Accepting request 496784 from devel:languages:python
- Update to Version 3.4.2 - Implement single-spec version. - Fix source URL. OBS-URL: https://build.opensuse.org/request/show/496784 OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/python-rsa?expand=0&rev=13
This commit is contained in:
Dominique Leuenberger
Git OBS Bridge
commit
f98879c16c
@ -1,103 +0,0 @@
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# HG changeset patch
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# User Filippo Valsorda <hi@filippo.io>
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# Date 1450226563 0
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# Node ID 0cbcc529926afd61c6df4f50cfc29971beafd2c2
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# Parent 2baab06c8b867b01ec82b02118d4872a931a0437
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Fix BB'06 attack in verify() by switching from parsing to comparison
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diff --git a/rsa/pkcs1.py b/rsa/pkcs1.py
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--- a/rsa/pkcs1.py
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+++ b/rsa/pkcs1.py
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@@ -22,10 +22,10 @@
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At least 8 bytes of random padding is used when encrypting a message. This makes
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these methods much more secure than the ones in the ``rsa`` module.
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-WARNING: this module leaks information when decryption or verification fails.
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-The exceptions that are raised contain the Python traceback information, which
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-can be used to deduce where in the process the failure occurred. DO NOT PASS
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-SUCH INFORMATION to your users.
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+WARNING: this module leaks information when decryption fails. The exceptions
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+that are raised contain the Python traceback information, which can be used to
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+deduce where in the process the failure occurred. DO NOT PASS SUCH INFORMATION
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+to your users.
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'''
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import hashlib
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@@ -288,37 +288,23 @@
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:param pub_key: the :py:class:`rsa.PublicKey` of the person signing the message.
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:raise VerificationError: when the signature doesn't match the message.
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- .. warning::
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-
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- Never display the stack trace of a
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- :py:class:`rsa.pkcs1.VerificationError` exception. It shows where in
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- the code the exception occurred, and thus leaks information about the
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- key. It's only a tiny bit of information, but every bit makes cracking
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- the keys easier.
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-
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'''
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- blocksize = common.byte_size(pub_key.n)
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+ keylength = common.byte_size(pub_key.n)
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encrypted = transform.bytes2int(signature)
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decrypted = core.decrypt_int(encrypted, pub_key.e, pub_key.n)
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- clearsig = transform.int2bytes(decrypted, blocksize)
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-
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- # If we can't find the signature marker, verification failed.
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- if clearsig[0:2] != b('\x00\x01'):
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- raise VerificationError('Verification failed')
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+ clearsig = transform.int2bytes(decrypted, keylength)
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- # Find the 00 separator between the padding and the payload
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- try:
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- sep_idx = clearsig.index(b('\x00'), 2)
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- except ValueError:
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- raise VerificationError('Verification failed')
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-
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- # Get the hash and the hash method
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- (method_name, signature_hash) = _find_method_hash(clearsig[sep_idx+1:])
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+ # Get the hash method
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+ method_name = _find_method_hash(clearsig)
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message_hash = _hash(message, method_name)
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- # Compare the real hash to the hash in the signature
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- if message_hash != signature_hash:
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+ # Reconstruct the expected padded hash
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+ cleartext = HASH_ASN1[method_name] + message_hash
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+ expected = _pad_for_signing(cleartext, keylength)
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+
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+ # Compare with the signed one
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+ if expected != clearsig:
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raise VerificationError('Verification failed')
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return True
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@@ -351,24 +337,20 @@
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return hasher.digest()
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-def _find_method_hash(method_hash):
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- '''Finds the hash method and the hash itself.
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+def _find_method_hash(clearsig):
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+ '''Finds the hash method.
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- :param method_hash: ASN1 code for the hash method concatenated with the
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- hash itself.
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+ :param clearsig: full padded ASN1 and hash.
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- :return: tuple (method, hash) where ``method`` is the used hash method, and
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- ``hash`` is the hash itself.
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+ :return: the used hash method.
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:raise VerificationFailed: when the hash method cannot be found
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'''
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for (hashname, asn1code) in HASH_ASN1.items():
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- if not method_hash.startswith(asn1code):
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- continue
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-
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- return (hashname, method_hash[len(asn1code):])
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+ if asn1code in clearsig:
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+ return hashname
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raise VerificationError('Verification failed')
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@ -1,3 +1,42 @@
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-------------------------------------------------------------------
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Mon May 1 16:30:14 UTC 2017 - toddrme2178@gmail.com
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- Update to Version 3.4.2
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* Fixed dates in CHANGELOG.txt
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- Update to Version 3.4.1
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* Included tests/private.pem in MANIFEST.in
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* Included README.md and CHANGELOG.txt in MANIFEST.in
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- Update to Version 3.4
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* Moved development to Github: https://github.com/sybrenstuvel/python-rsa
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* Solved side-channel vulnerability by implementing blinding, fixes #19
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* Deprecated the VARBLOCK format and rsa.bigfile module due to security issues, see
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https://github.com/sybrenstuvel/python-rsa/issues/13
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* Integration with Travis-CI, Coveralls and Code Climate
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* Deprecated the old rsa._version133 and rsa._version200 submodules, they will be
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completely removed in version 4.0.
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* Add an 'exponent' argument to key.newkeys()
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* Switched from Solovay-Strassen to Miller-Rabin primality testing, to
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comply with NIST FIPS 186-4 as probabilistic primality test
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(Appendix C, subsection C.3):
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* Fixed bugs #12, #14, #27, #30, #49
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- Update to Version 3.3
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* Thanks to Filippo Valsorda: Fix BB'06 attack in verify() by
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switching from parsing to comparison.
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* Simplified Tox configuration and dropped Python 3.2 support. The
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coverage package uses a u'' prefix, which was reintroduced in 3.3
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for ease of porting.
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- Update to Version 3.2.3
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* Added character encoding markers for Python 2.x
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- Update to Version 3.2.1
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* Added per-file licenses
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* Added support for wheel packages
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* Made example code more consistent and up to date with Python 3.4
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- Update to Version 3.2
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* Mentioned support for Python 3 in setup.py
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- Implement single-spec version.
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- Fix source URL.
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- Remove cve_2016-1494.diff, fixed in latest version.
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-------------------------------------------------------------------
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Tue Jan 5 18:39:56 UTC 2016 - rjschwei@suse.com
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135
python-rsa.spec
135
python-rsa.spec
@ -1,7 +1,7 @@
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#
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# spec file for package python-rsa
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#
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# Copyright (c) 2016 SUSE LINUX GmbH, Nuernberg, Germany.
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# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
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#
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# All modifications and additions to the file contributed by third parties
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# remain the property of their copyright owners, unless otherwise agreed
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@ -16,30 +16,32 @@
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#
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%bcond_without tests
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%{?!python_module:%define python_module() python-%{**} python3-%{**}}
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Name: python-rsa
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Version: 3.1.4
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Version: 3.4.2
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Release: 0
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Url: http://stuvel.eu/rsa
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Summary: Pure-Python RSA Implementation
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License: Apache-2.0
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Group: Development/Languages/Python
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Source: http://pypi.python.org/packages/source/r/rsa/rsa-%{version}.tar.gz
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Patch0: cve_2016-1494.diff
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Source: https://files.pythonhosted.org/packages/source/r/rsa/rsa-%{version}.tar.gz
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BuildRoot: %{_tmppath}/%{name}-%{version}-build
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BuildRequires: python-devel
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BuildRequires: python-pyasn1
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BuildRequires: python-setuptools
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BuildRequires: python-unittest2
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Requires(pre): coreutils
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Requires: python-pyasn1
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Requires(pre): coreutils
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Requires(post): update-alternatives
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Requires(postun): update-alternatives
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%if 0%{?suse_version} && 0%{?suse_version} <= 1110
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%{!?python_sitelib: %global python_sitelib %(python -c "from distutils.sysconfig import get_python_lib; print get_python_lib()")}
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%else
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BuildArch: noarch
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BuildRequires: fdupes
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BuildRequires: python-rpm-macros
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BuildRequires: %{python_module devel}
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BuildRequires: %{python_module setuptools}
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BuildRequires: %{python_module pyasn1 >= 0.1.3}
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%if %{with tests}
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BuildRequires: %{python_module nose}
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%endif
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Requires: python-pyasn1 >= 0.1.3
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BuildArch: noarch
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Requires(pre): coreutils
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Requires(post): update-alternatives
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Requires(preun): update-alternatives
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%python_subpackages
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%description
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Python-RSA is a pure-Python RSA implementation. It supports encryption and
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@ -48,88 +50,45 @@ PKCS#1 version 1.5.
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%prep
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%setup -q -n rsa-%{version}
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sed -i "s/pyrsa-priv2pub/pyrsa-priv2pub-%{py_ver}/" setup.py
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sed -i "s/pyrsa-keygen/pyrsa-keygen-%{py_ver}/" setup.py
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sed -i "s/pyrsa-encrypt =/pyrsa-encrypt-%{py_ver} =/" setup.py
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sed -i "s/pyrsa-decrypt =/pyrsa-decrypt-%{py_ver} =/" setup.py
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sed -i "s/pyrsa-sign/pyrsa-sign-%{py_ver}/" setup.py
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sed -i "s/pyrsa-verify/pyrsa-verify-%{py_ver}/" setup.py
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sed -i "s/pyrsa-encrypt-bigfile =/pyrsa-encrypt-bigfile-%{py_ver} =/" setup.py
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sed -i "s/pyrsa-decrypt-bigfile =/pyrsa-decrypt-bigfile-%{py_ver} =/" setup.py
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%patch0 -p1
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%build
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python setup.py build
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%python_build
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%install
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python setup.py install --prefix=%{_prefix} --root=%{buildroot}
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%python_install
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%python_expand %fdupes %{buildroot}%{$python_sitelib}
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# for update-alternatives
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mkdir -p %{buildroot}%{_sysconfdir}/alternatives
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for f in pyrsa-priv2pub pyrsa-keygen pyrsa-encrypt pyrsa-decrypt pyrsa-sign \
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pyrsa-verify pyrsa-encrypt-bigfile pyrsa-decrypt-bigfile; do
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touch %{buildroot}%{_sysconfdir}/alternatives/$f
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ln -sf %{_sysconfdir}/alternatives/$f %{buildroot}%{_bindir}/$f
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done
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%check
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python run_tests.py
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%pre
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# Since binaries became ghosted to be used with update-alternatives, we have to get rid
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# of the old binary resulting from the non-update-alternativies-ified package:
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[ -h %{_bindir}/pyrsa-priv2pub ] || rm -f %{_bindir}/pyrsa-priv2pub
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[ -h %{_bindir}/pyrsa-keygen ] || rm -f %{_bindir}/pyrsa-keygen
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[ -h %{_bindir}/pyrsa-encrypt ] || rm -f %{_bindir}/pyrsa-encrypt
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[ -h %{_bindir}/pyrsa-decrypt ] || rm -f %{_bindir}/pyrsa-decrypt
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[ -h %{_bindir}/pyrsa-sign ] || rm -f %{_bindir}/pyrsa-sign
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[ -h %{_bindir}/pyrsa-verify ] || rm -f %{_bindir}/pyrsa-verify
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[ -h %{_bindir}/pyrsa-encrypt-bigfile ] || rm -f %{_bindir}/pyrsa-encrypt-bigfile
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[ -h %{_bindir}/pyrsa-decrypt-bigfile ] || rm -f %{_bindir}/pyrsa-decrypt-bigfile
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%python_clone -a %{buildroot}%{_bindir}/pyrsa-priv2pub
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%python_clone -a %{buildroot}%{_bindir}/pyrsa-decrypt
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%python_clone -a %{buildroot}%{_bindir}/pyrsa-decrypt-bigfile
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%python_clone -a %{buildroot}%{_bindir}/pyrsa-encrypt
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%python_clone -a %{buildroot}%{_bindir}/pyrsa-encrypt-bigfile
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%python_clone -a %{buildroot}%{_bindir}/pyrsa-keygen
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%python_clone -a %{buildroot}%{_bindir}/pyrsa-sign
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%python_clone -a %{buildroot}%{_bindir}/pyrsa-verify
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%post
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update-alternatives \
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--install %{_bindir}/pyrsa-priv2pub pyrsa-priv2pub %{_bindir}/pyrsa-priv2pub-%{py_ver} 30 \
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--slave %{_bindir}/pyrsa-keygen pyrsa-keygen %{_bindir}/pyrsa-keygen-%{py_ver} \
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--slave %{_bindir}/pyrsa-encrypt pyrsa-encrypt %{_bindir}/pyrsa-encrypt-%{py_ver} \
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--slave %{_bindir}/pyrsa-decrypt pyrsa-decrypt %{_bindir}/pyrsa-decrypt-%{py_ver} \
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--slave %{_bindir}/pyrsa-sign pyrsa-sign %{_bindir}/pyrsa-sign-%{py_ver} \
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--slave %{_bindir}/pyrsa-verify pyrsa-verify %{_bindir}/pyrsa-verify-%{py_ver} \
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--slave %{_bindir}/pyrsa-encrypt-bigfile pyrsa-encrypt-bigfile %{_bindir}/pyrsa-encrypt-bigfile-%{py_ver} \
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--slave %{_bindir}/pyrsa-decrypt-bigfile pyrsa-decrypt-bigfile %{_bindir}/pyrsa-decrypt-bigfile-%{py_ver} \
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%{python_install_alternative pyrsa-priv2pub pyrsa-decrypt pyrsa-decrypt-bigfile pyrsa-encrypt pyrsa-encrypt-bigfile pyrsa-keygen pyrsa-sign pyrsa-verify}
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%preun
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if [ $1 -eq 0 ] ; then
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update-alternatives --remove pyrsa-priv2pub %{_bindir}/pyrsa-priv2pub-%{py_ver}
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fi
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%python_uninstall_alternative pyrsa-priv2pub
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%files
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%if %{with tests}
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%check
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%python_exec setup.py test
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%endif
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%files %{python_files}
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%defattr(-,root,root,-)
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%doc LICENSE README.rst
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%ghost %{_sysconfdir}/alternatives/pyrsa-priv2pub
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%ghost %{_sysconfdir}/alternatives/pyrsa-keygen
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%ghost %{_sysconfdir}/alternatives/pyrsa-encrypt
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%ghost %{_sysconfdir}/alternatives/pyrsa-decrypt
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%ghost %{_sysconfdir}/alternatives/pyrsa-sign
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%ghost %{_sysconfdir}/alternatives/pyrsa-verify
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%ghost %{_sysconfdir}/alternatives/pyrsa-encrypt-bigfile
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%ghost %{_sysconfdir}/alternatives/pyrsa-decrypt-bigfile
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%{_bindir}/pyrsa-priv2pub
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%{_bindir}/pyrsa-priv2pub-%{py_ver}
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%{_bindir}/pyrsa-keygen
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%{_bindir}/pyrsa-keygen-%{py_ver}
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%{_bindir}/pyrsa-encrypt
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%{_bindir}/pyrsa-encrypt-%{py_ver}
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%{_bindir}/pyrsa-decrypt
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%{_bindir}/pyrsa-decrypt-%{py_ver}
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%{_bindir}/pyrsa-sign
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%{_bindir}/pyrsa-sign-%{py_ver}
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%{_bindir}/pyrsa-verify
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%{_bindir}/pyrsa-verify-%{py_ver}
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%{_bindir}/pyrsa-encrypt-bigfile
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%{_bindir}/pyrsa-encrypt-bigfile-%{py_ver}
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%{_bindir}/pyrsa-decrypt-bigfile
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%{_bindir}/pyrsa-decrypt-bigfile-%{py_ver}
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%doc CHANGELOG.txt LICENSE README.md
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%python_alternative %{_bindir}/pyrsa-decrypt
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%python_alternative %{_bindir}/pyrsa-decrypt-bigfile
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%python_alternative %{_bindir}/pyrsa-encrypt
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%python_alternative %{_bindir}/pyrsa-encrypt-bigfile
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%python_alternative %{_bindir}/pyrsa-keygen
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%python_alternative %{_bindir}/pyrsa-priv2pub
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%python_alternative %{_bindir}/pyrsa-sign
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%python_alternative %{_bindir}/pyrsa-verify
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%{python_sitelib}/*
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%changelog
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@ -1,3 +0,0 @@
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version https://git-lfs.github.com/spec/v1
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oid sha256:e2b0b05936c276b1edd2e1525553233b666df9e29b5c3ba223eed738277c82a0
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size 36181
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3
rsa-3.4.2.tar.gz
Normal file
3
rsa-3.4.2.tar.gz
Normal file
@ -0,0 +1,3 @@
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version https://git-lfs.github.com/spec/v1
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oid sha256:25df4e10c263fb88b5ace923dd84bf9aa7f5019687b5e55382ffcdb8bede9db5
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size 40956
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Block a user