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32ced036f1
openssl-1_1/openssl-1.1.1-fips-crng-test.patch
Pedro Monreal Gonzalez 32ced036f1 Accepting request 786956 from home:vitezslav_cizek:branches:security:tls 
- Update to 1.1.1e
  * Properly detect EOF while reading in libssl. Previously if we hit an EOF
    while reading in libssl then we would report an error back to the
    application (SSL_ERROR_SYSCALL) but errno would be 0. We now add
    an error to the stack (which means we instead return SSL_ERROR_SSL) and
    therefore give a hint as to what went wrong.
  * Check that ed25519 and ed448 are allowed by the security level. Previously
    signature algorithms not using an MD were not being checked that they were
    allowed by the security level.
  * Fixed SSL_get_servername() behaviour. The behaviour of SSL_get_servername()
    was not quite right. The behaviour was not consistent between resumption
    and normal handshakes, and also not quite consistent with historical
    behaviour. The behaviour in various scenarios has been clarified and
    it has been updated to make it match historical behaviour as closely as
    possible.
  * Corrected the documentation of the return values from the EVP_DigestSign*
    set of functions.  The documentation mentioned negative values for some
    errors, but this was never the case, so the mention of negative values
    was removed.
  * Added a new method to gather entropy on VMS, based on SYS$GET_ENTROPY.
    The presence of this system service is determined at run-time.
  * Added newline escaping functionality to a filename when using openssl dgst.
    This output format is to replicate the output format found in the '*sum'
    checksum programs. This aims to preserve backward compatibility.
  * Print all values for a PKCS#12 attribute with 'openssl pkcs12', not just
    the first value.
- Update bunch of patches as the internal crypto headers got reorganized
- drop openssl-1_1-CVE-2019-1551.patch (upstream)

- openssl dgst: default to SHA256 only when called without a digest,

OBS-URL: https://build.opensuse.org/request/show/786956
OBS-URL: https://build.opensuse.org/package/show/security:tls/openssl-1_1?expand=0&rev=65
2020-03-20 17:43:35 +00:00

413 lines
14 KiB
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Index: openssl-1.1.1d/include/crypto/rand.h
===================================================================
--- openssl-1.1.1d.orig/include/crypto/rand.h 2020-01-23 13:45:11.368633835 +0100
+++ openssl-1.1.1d/include/crypto/rand.h 2020-01-23 13:45:11.384633930 +0100
@@ -49,6 +49,14 @@ size_t rand_drbg_get_additional_data(RAN
void rand_drbg_cleanup_additional_data(RAND_POOL *pool, unsigned char *out);
+/* CRNG test entropy filter callbacks. */
+size_t rand_crngt_get_entropy(RAND_DRBG *drbg,
+ unsigned char **pout,
+ int entropy, size_t min_len, size_t max_len,
+ int prediction_resistance);
+void rand_crngt_cleanup_entropy(RAND_DRBG *drbg,
+ unsigned char *out, size_t outlen);
+
/*
* RAND_POOL functions
*/
Index: openssl-1.1.1d/crypto/rand/build.info
===================================================================
--- openssl-1.1.1d.orig/crypto/rand/build.info 2019-09-10 15:13:07.000000000 +0200
+++ openssl-1.1.1d/crypto/rand/build.info 2020-01-23 13:45:11.384633930 +0100
@@ -1,4 +1,4 @@
LIBS=../../libcrypto
SOURCE[../../libcrypto]=\
- randfile.c rand_lib.c rand_err.c rand_egd.c \
+ randfile.c rand_lib.c rand_err.c rand_crng_test.c rand_egd.c \
rand_win.c rand_unix.c rand_vms.c drbg_lib.c drbg_ctr.c
Index: openssl-1.1.1d/crypto/rand/drbg_lib.c
===================================================================
--- openssl-1.1.1d.orig/crypto/rand/drbg_lib.c 2020-01-23 13:45:11.368633835 +0100
+++ openssl-1.1.1d/crypto/rand/drbg_lib.c 2020-01-23 13:45:11.384633930 +0100
@@ -67,7 +67,7 @@ static CRYPTO_THREAD_LOCAL private_drbg;
/* NIST SP 800-90A DRBG recommends the use of a personalization string. */
-static const char ossl_pers_string[] = "OpenSSL NIST SP 800-90A DRBG";
+static const char ossl_pers_string[] = DRBG_DEFAULT_PERS_STRING;
static CRYPTO_ONCE rand_drbg_init = CRYPTO_ONCE_STATIC_INIT;
@@ -201,8 +201,13 @@ static RAND_DRBG *rand_drbg_new(int secu
drbg->parent = parent;
if (parent == NULL) {
+#ifdef OPENSSL_FIPS
+ drbg->get_entropy = rand_crngt_get_entropy;
+ drbg->cleanup_entropy = rand_crngt_cleanup_entropy;
+#else
drbg->get_entropy = rand_drbg_get_entropy;
drbg->cleanup_entropy = rand_drbg_cleanup_entropy;
+#endif
#ifndef RAND_DRBG_GET_RANDOM_NONCE
drbg->get_nonce = rand_drbg_get_nonce;
drbg->cleanup_nonce = rand_drbg_cleanup_nonce;
Index: openssl-1.1.1d/crypto/rand/rand_crng_test.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ openssl-1.1.1d/crypto/rand/rand_crng_test.c 2020-01-23 13:45:11.384633930 +0100
@@ -0,0 +1,118 @@
+/*
+ * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/*
+ * Implementation of the FIPS 140-2 section 4.9.2 Conditional Tests.
+ */
+
+#include <string.h>
+#include <openssl/evp.h>
+#include "crypto/rand.h"
+#include "internal/thread_once.h"
+#include "rand_local.h"
+
+static RAND_POOL *crngt_pool;
+static unsigned char crngt_prev[EVP_MAX_MD_SIZE];
+
+int (*crngt_get_entropy)(unsigned char *, unsigned char *, unsigned int *)
+ = &rand_crngt_get_entropy_cb;
+
+int rand_crngt_get_entropy_cb(unsigned char *buf, unsigned char *md,
+ unsigned int *md_size)
+{
+ int r;
+ size_t n;
+ unsigned char *p;
+
+ n = rand_pool_acquire_entropy(crngt_pool);
+ if (n >= CRNGT_BUFSIZ) {
+ p = rand_pool_detach(crngt_pool);
+ r = EVP_Digest(p, CRNGT_BUFSIZ, md, md_size, EVP_sha256(), NULL);
+ if (r != 0)
+ memcpy(buf, p, CRNGT_BUFSIZ);
+ rand_pool_reattach(crngt_pool, p);
+ return r;
+ }
+ return 0;
+}
+
+void rand_crngt_cleanup(void)
+{
+ rand_pool_free(crngt_pool);
+ crngt_pool = NULL;
+}
+
+int rand_crngt_init(void)
+{
+ unsigned char buf[CRNGT_BUFSIZ];
+
+ if ((crngt_pool = rand_pool_new(0, 1, CRNGT_BUFSIZ, CRNGT_BUFSIZ)) == NULL)
+ return 0;
+ if (crngt_get_entropy(buf, crngt_prev, NULL)) {
+ OPENSSL_cleanse(buf, sizeof(buf));
+ return 1;
+ }
+ rand_crngt_cleanup();
+ return 0;
+}
+
+static CRYPTO_ONCE rand_crngt_init_flag = CRYPTO_ONCE_STATIC_INIT;
+DEFINE_RUN_ONCE_STATIC(do_rand_crngt_init)
+{
+ return OPENSSL_init_crypto(0, NULL)
+ && rand_crngt_init()
+ && OPENSSL_atexit(&rand_crngt_cleanup);
+}
+
+int rand_crngt_single_init(void)
+{
+ return RUN_ONCE(&rand_crngt_init_flag, do_rand_crngt_init);
+}
+
+size_t rand_crngt_get_entropy(RAND_DRBG *drbg,
+ unsigned char **pout,
+ int entropy, size_t min_len, size_t max_len,
+ int prediction_resistance)
+{
+ unsigned char buf[CRNGT_BUFSIZ], md[EVP_MAX_MD_SIZE];
+ unsigned int sz;
+ RAND_POOL *pool;
+ size_t q, r = 0, s, t = 0;
+ int attempts = 3;
+
+ if (!RUN_ONCE(&rand_crngt_init_flag, do_rand_crngt_init))
+ return 0;
+
+ if ((pool = rand_pool_new(entropy, 1, min_len, max_len)) == NULL)
+ return 0;
+
+ while ((q = rand_pool_bytes_needed(pool, 1)) > 0 && attempts-- > 0) {
+ s = q > sizeof(buf) ? sizeof(buf) : q;
+ if (!crngt_get_entropy(buf, md, &sz)
+ || memcmp(crngt_prev, md, sz) == 0
+ || !rand_pool_add(pool, buf, s, s * 8))
+ goto err;
+ memcpy(crngt_prev, md, sz);
+ t += s;
+ attempts++;
+ }
+ r = t;
+ *pout = rand_pool_detach(pool);
+err:
+ OPENSSL_cleanse(buf, sizeof(buf));
+ rand_pool_free(pool);
+ return r;
+}
+
+void rand_crngt_cleanup_entropy(RAND_DRBG *drbg,
+ unsigned char *out, size_t outlen)
+{
+ OPENSSL_secure_clear_free(out, outlen);
+}
Index: openssl-1.1.1d/crypto/rand/rand_local.h
===================================================================
--- openssl-1.1.1d.orig/crypto/rand/rand_local.h 2019-09-10 15:13:07.000000000 +0200
+++ openssl-1.1.1d/crypto/rand/rand_local.h 2020-01-23 13:45:11.384633930 +0100
@@ -33,7 +33,15 @@
# define MASTER_RESEED_TIME_INTERVAL (60*60) /* 1 hour */
# define SLAVE_RESEED_TIME_INTERVAL (7*60) /* 7 minutes */
-
+/*
+ * The number of bytes that constitutes an atomic lump of entropy with respect
+ * to the FIPS 140-2 section 4.9.2 Conditional Tests. The size is somewhat
+ * arbitrary, the smaller the value, the less entropy is consumed on first
+ * read but the higher the probability of the test failing by accident.
+ *
+ * The value is in bytes.
+ */
+#define CRNGT_BUFSIZ 16
/*
* Maximum input size for the DRBG (entropy, nonce, personalization string)
@@ -44,6 +52,8 @@
*/
# define DRBG_MAX_LENGTH INT32_MAX
+/* The default nonce */
+# define DRBG_DEFAULT_PERS_STRING "OpenSSL NIST SP 800-90A DRBG"
/*
* Maximum allocation size for RANDOM_POOL buffers
@@ -296,4 +306,22 @@ int rand_drbg_enable_locking(RAND_DRBG *
/* initializes the AES-CTR DRBG implementation */
int drbg_ctr_init(RAND_DRBG *drbg);
+/*
+ * Entropy call back for the FIPS 140-2 section 4.9.2 Conditional Tests.
+ * These need to be exposed for the unit tests.
+ */
+int rand_crngt_get_entropy_cb(unsigned char *buf, unsigned char *md,
+ unsigned int *md_size);
+extern int (*crngt_get_entropy)(unsigned char *buf, unsigned char *md,
+ unsigned int *md_size);
+int rand_crngt_init(void);
+void rand_crngt_cleanup(void);
+
+/*
+ * Expose the run once initialisation function for the unit tests because.
+ * they need to restart from scratch to validate the first block is skipped
+ * properly.
+ */
+int rand_crngt_single_init(void);
+
#endif
Index: openssl-1.1.1d/test/drbgtest.c
===================================================================
--- openssl-1.1.1d.orig/test/drbgtest.c 2019-09-10 15:13:07.000000000 +0200
+++ openssl-1.1.1d/test/drbgtest.c 2020-01-23 13:45:11.384633930 +0100
@@ -150,6 +150,31 @@ static size_t kat_nonce(RAND_DRBG *drbg,
return t->noncelen;
}
+ /*
+ * Disable CRNG testing if it is enabled.
+ * If the DRBG is ready or in an error state, this means an instantiate cycle
+ * for which the default personalisation string is used.
+ */
+static int disable_crngt(RAND_DRBG *drbg)
+{
+ static const char pers[] = DRBG_DEFAULT_PERS_STRING;
+ const int instantiate = drbg->state != DRBG_UNINITIALISED;
+
+ if (drbg->get_entropy != rand_crngt_get_entropy)
+ return 1;
+
+ if ((instantiate && !RAND_DRBG_uninstantiate(drbg))
+ || !TEST_true(RAND_DRBG_set_callbacks(drbg, &rand_drbg_get_entropy,
+ &rand_drbg_cleanup_entropy,
+ &rand_drbg_get_nonce,
+ &rand_drbg_cleanup_nonce))
+ || (instantiate
+ && !RAND_DRBG_instantiate(drbg, (const unsigned char *)pers,
+ sizeof(pers) - 1)))
+ return 0;
+ return 1;
+}
+
static int uninstantiate(RAND_DRBG *drbg)
{
int ret = drbg == NULL ? 1 : RAND_DRBG_uninstantiate(drbg);
@@ -175,7 +200,8 @@ static int single_kat(DRBG_SELFTEST_DATA
if (!TEST_ptr(drbg = RAND_DRBG_new(td->nid, td->flags, NULL)))
return 0;
if (!TEST_true(RAND_DRBG_set_callbacks(drbg, kat_entropy, NULL,
- kat_nonce, NULL))) {
+ kat_nonce, NULL))
+ || !TEST_true(disable_crngt(drbg))) {
failures++;
goto err;
}
@@ -293,7 +319,8 @@ static int error_check(DRBG_SELFTEST_DAT
unsigned int reseed_counter_tmp;
int ret = 0;
- if (!TEST_ptr(drbg = RAND_DRBG_new(0, 0, NULL)))
+ if (!TEST_ptr(drbg = RAND_DRBG_new(0, 0, NULL))
+ || !TEST_true(disable_crngt(drbg)))
goto err;
/*
@@ -740,6 +767,10 @@ static int test_rand_drbg_reseed(void)
|| !TEST_ptr_eq(private->parent, master))
return 0;
+ /* Disable CRNG testing for the master DRBG */
+ if (!TEST_true(disable_crngt(master)))
+ return 0;
+
/* uninstantiate the three global DRBGs */
RAND_DRBG_uninstantiate(private);
RAND_DRBG_uninstantiate(public);
@@ -964,7 +995,8 @@ static int test_rand_seed(void)
size_t rand_buflen;
size_t required_seed_buflen = 0;
- if (!TEST_ptr(master = RAND_DRBG_get0_master()))
+ if (!TEST_ptr(master = RAND_DRBG_get0_master())
+ || !TEST_true(disable_crngt(master)))
return 0;
#ifdef OPENSSL_RAND_SEED_NONE
@@ -1013,6 +1045,95 @@ static int test_rand_add(void)
return 1;
}
+/*
+ * A list of the FIPS DRGB types.
+ */
+static const struct s_drgb_types {
+ int nid;
+ int flags;
+} drgb_types[] = {
+ { NID_aes_128_ctr, 0 },
+ { NID_aes_192_ctr, 0 },
+ { NID_aes_256_ctr, 0 },
+};
+
+/* Six cases for each covers seed sizes up to 32 bytes */
+static const size_t crngt_num_cases = 6;
+
+static size_t crngt_case, crngt_idx;
+
+static int crngt_entropy_cb(unsigned char *buf, unsigned char *md,
+ unsigned int *md_size)
+{
+ size_t i, z;
+
+ if (!TEST_int_lt(crngt_idx, crngt_num_cases))
+ return 0;
+ /* Generate a block of unique data unless this is the duplication point */
+ z = crngt_idx++;
+ if (z > 0 && crngt_case == z)
+ z--;
+ for (i = 0; i < CRNGT_BUFSIZ; i++)
+ buf[i] = (unsigned char)(i + 'A' + z);
+ return EVP_Digest(buf, CRNGT_BUFSIZ, md, md_size, EVP_sha256(), NULL);
+}
+
+static int test_crngt(int n)
+{
+ const struct s_drgb_types *dt = drgb_types + n / crngt_num_cases;
+ RAND_DRBG *drbg = NULL;
+ unsigned char buff[100];
+ size_t ent;
+ int res = 0;
+ int expect;
+
+ if (!TEST_true(rand_crngt_single_init()))
+ return 0;
+ rand_crngt_cleanup();
+
+ if (!TEST_ptr(drbg = RAND_DRBG_new(dt->nid, dt->flags, NULL)))
+ return 0;
+ ent = (drbg->min_entropylen + CRNGT_BUFSIZ - 1) / CRNGT_BUFSIZ;
+ crngt_case = n % crngt_num_cases;
+ crngt_idx = 0;
+ crngt_get_entropy = &crngt_entropy_cb;
+ if (!TEST_true(rand_crngt_init()))
+ goto err;
+#ifndef OPENSSL_FIPS
+ if (!TEST_true(RAND_DRBG_set_callbacks(drbg, &rand_crngt_get_entropy,
+ &rand_crngt_cleanup_entropy,
+ &rand_drbg_get_nonce,
+ &rand_drbg_cleanup_nonce)))
+ goto err;
+#endif
+ expect = crngt_case == 0 || crngt_case > ent;
+ if (!TEST_int_eq(RAND_DRBG_instantiate(drbg, NULL, 0), expect))
+ goto err;
+ if (!expect)
+ goto fin;
+ if (!TEST_true(RAND_DRBG_generate(drbg, buff, sizeof(buff), 0, NULL, 0)))
+ goto err;
+
+ expect = crngt_case == 0 || crngt_case > 2 * ent;
+ if (!TEST_int_eq(RAND_DRBG_reseed(drbg, NULL, 0, 0), expect))
+ goto err;
+ if (!expect)
+ goto fin;
+ if (!TEST_true(RAND_DRBG_generate(drbg, buff, sizeof(buff), 0, NULL, 0)))
+ goto err;
+
+fin:
+ res = 1;
+err:
+ if (!res)
+ TEST_note("DRBG %zd case %zd block %zd", n / crngt_num_cases,
+ crngt_case, crngt_idx);
+ uninstantiate(drbg);
+ RAND_DRBG_free(drbg);
+ crngt_get_entropy = &rand_crngt_get_entropy_cb;
+ return res;
+}
+
int setup_tests(void)
{
app_data_index = RAND_DRBG_get_ex_new_index(0L, NULL, NULL, NULL, NULL);
@@ -1025,5 +1146,6 @@ int setup_tests(void)
#if defined(OPENSSL_THREADS)
ADD_TEST(test_multi_thread);
#endif
+ ADD_ALL_TESTS(test_crngt, crngt_num_cases * OSSL_NELEM(drgb_types));
return 1;
}
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