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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-03-26 11:04:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-03-26 11:04:34 -0700 |
| commit | 562f477a54478002ddfbb5b85627c009ca41e71d (patch) | |
| tree | 52384cc554ae64cc7a26878d64d606f40fd703ce /crypto/ansi_cprng.c | |
| parent | ada19a31a90b4f46c040c25ef4ef8ffc203c7fc6 (diff) | |
| parent | 949abe574739848b1e68271fbac86c3cb4506aad (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (29 commits)
crypto: sha512-s390 - Add missing block size
hwrng: timeriomem - Breaks an allyesconfig build on s390:
nlattr: Fix build error with NET off
crypto: testmgr - add zlib test
crypto: zlib - New zlib crypto module, using pcomp
crypto: testmgr - Add support for the pcomp interface
crypto: compress - Add pcomp interface
netlink: Move netlink attribute parsing support to lib
crypto: Fix dead links
hwrng: timeriomem - New driver
crypto: chainiv - Use kcrypto_wq instead of keventd_wq
crypto: cryptd - Per-CPU thread implementation based on kcrypto_wq
crypto: api - Use dedicated workqueue for crypto subsystem
crypto: testmgr - Test skciphers with no IVs
crypto: aead - Avoid infinite loop when nivaead fails selftest
crypto: skcipher - Avoid infinite loop when cipher fails selftest
crypto: api - Fix crypto_alloc_tfm/create_create_tfm return convention
crypto: api - crypto_alg_mod_lookup either tested or untested
crypto: amcc - Add crypt4xx driver
crypto: ansi_cprng - Add maintainer
...
Diffstat (limited to 'crypto/ansi_cprng.c')
| -rw-r--r-- | crypto/ansi_cprng.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/crypto/ansi_cprng.c b/crypto/ansi_cprng.c index 0fac8ffc2fb7..d80ed4c1e009 100644 --- a/crypto/ansi_cprng.c +++ b/crypto/ansi_cprng.c @@ -132,9 +132,15 @@ static int _get_more_prng_bytes(struct prng_context *ctx) */ if (!memcmp(ctx->rand_data, ctx->last_rand_data, DEFAULT_BLK_SZ)) { + if (fips_enabled) { + panic("cprng %p Failed repetition check!\n", + ctx); + } + printk(KERN_ERR "ctx %p Failed repetition check!\n", ctx); + ctx->flags |= PRNG_NEED_RESET; return -EINVAL; } @@ -338,7 +344,16 @@ static int cprng_init(struct crypto_tfm *tfm) spin_lock_init(&ctx->prng_lock); - return reset_prng_context(ctx, NULL, DEFAULT_PRNG_KSZ, NULL, NULL); + if (reset_prng_context(ctx, NULL, DEFAULT_PRNG_KSZ, NULL, NULL) < 0) + return -EINVAL; + + /* + * after allocation, we should always force the user to reset + * so they don't inadvertently use the insecure default values + * without specifying them intentially + */ + ctx->flags |= PRNG_NEED_RESET; + return 0; } static void cprng_exit(struct crypto_tfm *tfm) |