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SUSE:SLE-12-SP2:GA
libgcrypt
disable-algorithms-that-are-not-allowed-in-fips...
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File disable-algorithms-that-are-not-allowed-in-fips.patch of Package libgcrypt
From 49db15dbdee366c63f5bbb1eba09d9d91e11b97d Mon Sep 17 00:00:00 2001 From: Ludwig Nussel <ludwig.nussel@suse.de> Date: Wed, 24 Sep 2014 17:58:59 +0200 Subject: [PATCH 2/6] disable algorithms that are not allowed in fips --- cipher/cipher.c | 11 ++++++++++ cipher/mac.c | 17 +++++++++++++++ cipher/md.c | 11 ++++++++++ cipher/md5.c | 7 +++++- cipher/pubkey.c | 11 ++++++++++ src/g10lib.h | 1 + src/global.c | 3 +++ tests/basic.c | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++------ 8 files changed, 120 insertions(+), 8 deletions(-) diff --git a/cipher/cipher.c b/cipher/cipher.c index 8c5a0b4..f0a7973 100644 --- a/cipher/cipher.c +++ b/cipher/cipher.c @@ -1364,6 +1364,17 @@ _gcry_cipher_get_algo_blklen (int algo) gcry_err_code_t _gcry_cipher_init (void) { + if (fips_mode()) + { + /* disable algorithms that are disallowed in fips */ + int idx; + gcry_cipher_spec_t *spec; + + for (idx = 0; (spec = cipher_list[idx]); idx++) + if (!spec->flags.fips) + spec->flags.disabled = 1; + } + return 0; } diff --git a/cipher/mac.c b/cipher/mac.c index fa36c7d..b9527de 100644 --- a/cipher/mac.c +++ b/cipher/mac.c @@ -104,6 +104,23 @@ static gcry_mac_spec_t *mac_list[] = { NULL, }; +/* Explicitly initialize this module. */ +gcry_err_code_t +_gcry_mac_init (void) +{ + if (fips_mode()) + { + /* disable algorithms that are disallowed in fips */ + int idx; + gcry_mac_spec_t *spec; + + for (idx = 0; (spec = mac_list[idx]); idx++) + if (!spec->flags.fips) + spec->flags.disabled = 1; + } + + return 0; +} /* Return the spec structure for the MAC algorithm ALGO. For an diff --git a/cipher/md.c b/cipher/md.c index 22da30a..c737aaa 100644 --- a/cipher/md.c +++ b/cipher/md.c @@ -1207,6 +1207,17 @@ _gcry_md_info (gcry_md_hd_t h, int cmd, void *buffer, size_t *nbytes) gcry_err_code_t _gcry_md_init (void) { + if (fips_mode()) + { + /* disable algorithms that are disallowed in fips */ + int idx; + gcry_md_spec_t *spec; + + for (idx = 0; (spec = digest_list[idx]); idx++) + if (!spec->flags.fips) + spec->flags.disabled = 1; + } + return 0; } diff --git a/cipher/md5.c b/cipher/md5.c index b0187c9..081179b 100644 --- a/cipher/md5.c +++ b/cipher/md5.c @@ -59,6 +59,11 @@ md5_init( void *context, unsigned int flags) (void)flags; + if (fips_mode()) { + /* should never happen but never say never ... */ + log_fatal("Every time you use MD5 god kills a kitten. How many more have to die?\n"); + } + ctx->A = 0x67452301; ctx->B = 0xefcdab89; ctx->C = 0x98badcfe; @@ -295,7 +300,7 @@ static gcry_md_oid_spec_t oid_spec_md5[] = gcry_md_spec_t _gcry_digest_spec_md5 = { - GCRY_MD_MD5, {0, 1}, + GCRY_MD_MD5, {0, 0}, "MD5", asn, DIM (asn), oid_spec_md5, 16, md5_init, _gcry_md_block_write, md5_final, md5_read, sizeof (MD5_CONTEXT) diff --git a/cipher/pubkey.c b/cipher/pubkey.c index d130388..75779ce 100644 --- a/cipher/pubkey.c +++ b/cipher/pubkey.c @@ -929,6 +929,17 @@ _gcry_pubkey_get_sexp (gcry_sexp_t *r_sexp, int mode, gcry_ctx_t ctx) gcry_err_code_t _gcry_pk_init (void) { + if (fips_mode()) + { + /* disable algorithms that are disallowed in fips */ + int idx; + gcry_pk_spec_t *spec; + + for (idx = 0; (spec = pubkey_list[idx]); idx++) + if (!spec->flags.fips) + spec->flags.disabled = 1; + } + return 0; } diff --git a/src/g10lib.h b/src/g10lib.h index 43dc011..7805e64 100644 --- a/src/g10lib.h +++ b/src/g10lib.h @@ -363,6 +363,7 @@ void __gcry_burn_stack (unsigned int bytes); gcry_err_code_t _gcry_cipher_init (void); gcry_err_code_t _gcry_md_init (void); +gcry_err_code_t _gcry_mac_init (void); gcry_err_code_t _gcry_pk_init (void); gcry_err_code_t _gcry_secmem_module_init (void); gcry_err_code_t _gcry_mpi_init (void); diff --git a/src/global.c b/src/global.c index a25149d..2e5439b 100644 --- a/src/global.c +++ b/src/global.c @@ -112,6 +112,9 @@ global_init (void) err = _gcry_md_init (); if (err) goto fail; + err = _gcry_mac_init (); + if (err) + goto fail; err = _gcry_pk_init (); if (err) goto fail; diff --git a/tests/basic.c b/tests/basic.c index 86be89d..8657936 100644 --- a/tests/basic.c +++ b/tests/basic.c @@ -582,6 +582,14 @@ check_ctr_cipher (void) if (!tv[i].algo) continue; + if (gcry_cipher_test_algo (tv[i].algo) && in_fips_mode) + { + if (verbose) + fprintf (stderr, " algorithm %d not available in fips mode\n", + tv[i].algo); + continue; + } + err = gcry_cipher_open (&hde, tv[i].algo, GCRY_CIPHER_MODE_CTR, 0); if (!err) err = gcry_cipher_open (&hdd, tv[i].algo, GCRY_CIPHER_MODE_CTR, 0); @@ -813,6 +821,14 @@ check_cfb_cipher (void) for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++) { + if (gcry_cipher_test_algo (tv[i].algo) && in_fips_mode) + { + if (verbose) + fprintf (stderr, " algorithm %d not available in fips mode\n", + tv[i].algo); + continue; + } + if (verbose) fprintf (stderr, " checking CFB mode for %s [%i]\n", gcry_cipher_algo_name (tv[i].algo), @@ -984,6 +1000,14 @@ check_ofb_cipher (void) for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++) { + if (gcry_cipher_test_algo (tv[i].algo) && in_fips_mode) + { + if (verbose) + fprintf (stderr, " algorithm %d not available in fips mode\n", + tv[i].algo); + continue; + } + if (verbose) fprintf (stderr, " checking OFB mode for %s [%i]\n", gcry_cipher_algo_name (tv[i].algo), @@ -1286,6 +1310,14 @@ _check_gcm_cipher (unsigned int step) for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++) { + if (gcry_cipher_test_algo (tv[i].algo) && in_fips_mode) + { + if (verbose) + fprintf (stderr, " algorithm %d not available in fips mode\n", + tv[i].algo); + continue; + } + if (verbose) fprintf (stderr, " checking GCM mode for %s [%i]\n", gcry_cipher_algo_name (tv[i].algo), @@ -1961,6 +1993,14 @@ check_ccm_cipher (void) for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++) { + if (gcry_cipher_test_algo (tv[i].algo) && in_fips_mode) + { + if (verbose) + fprintf (stderr, " algorithm %d not available in fips mode\n", + tv[i].algo); + continue; + } + if (verbose) fprintf (stderr, " checking CCM mode for %s [%i]\n", gcry_cipher_algo_name (tv[i].algo), @@ -2521,6 +2561,13 @@ check_stream_cipher (void) for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++) { + if (gcry_cipher_test_algo (tv[i].algo) && in_fips_mode) + { + if (verbose) + fprintf (stderr, " algorithm %d not available in fips mode\n", + tv[i].algo); + continue; + } if (verbose) fprintf (stderr, " checking stream mode for %s [%i] (%s)\n", gcry_cipher_algo_name (tv[i].algo), tv[i].algo, tv[i].name); @@ -2965,6 +3012,14 @@ check_stream_cipher_large_block (void) for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++) { + if (gcry_cipher_test_algo (tv[i].algo) && in_fips_mode) + { + if (verbose) + fprintf (stderr, " algorithm %d not available in fips mode\n", + tv[i].algo); + continue; + } + if (verbose) fprintf (stderr, " checking large block stream for %s [%i] (%s)\n", gcry_cipher_algo_name (tv[i].algo), tv[i].algo, tv[i].name); @@ -3604,11 +3659,11 @@ check_ciphers (void) for (i = 0; algos2[i]; i++) { - if (gcry_cipher_test_algo (algos[i]) && in_fips_mode) + if (gcry_cipher_test_algo (algos2[i]) && in_fips_mode) { if (verbose) fprintf (stderr, " algorithm %d not available in fips mode\n", - algos[i]); + algos2[i]); continue; } if (verbose) @@ -4058,7 +4113,7 @@ check_digests (void) for (i = 0; algos[i].md; i++) { - if ((gcry_md_test_algo (algos[i].md) || algos[i].md == GCRY_MD_MD5) + if ((gcry_md_test_algo (algos[i].md)) && in_fips_mode) { if (verbose) @@ -4482,8 +4537,7 @@ check_hmac (void) for (i = 0; algos[i].md; i++) { - if ((gcry_md_test_algo (algos[i].md) || algos[i].md == GCRY_MD_MD5) - && in_fips_mode) + if ((gcry_md_test_algo (algos[i].md)) && in_fips_mode) { if (verbose) fprintf (stderr, " algorithm %d not available in fips mode\n", @@ -5079,8 +5133,7 @@ check_mac (void) for (i = 0; algos[i].algo; i++) { - if ((gcry_mac_test_algo (algos[i].algo) - || algos[i].algo == GCRY_MAC_HMAC_MD5) && in_fips_mode) + if (gcry_mac_test_algo (algos[i].algo) && in_fips_mode) { if (verbose) fprintf (stderr, " algorithm %d not available in fips mode\n", -- 2.1.0
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