diff options
| author |   Herbert Xu <herbert@gondor.apana.org.au> | 2015-04-21 10:46:39 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-04-22 09:30:15 +0800 |
| commit | 7ca99d814821e8a8ac6d7c48b2ccfc24bda27b1f (patch) | |
| tree | 2a88fdf67ae0efe03a8061e4ce4cdb4b15f1393c | |
| parent | crypto: rng - Convert low-level crypto_rng to new style (diff) | |
| download | linux-dev-7ca99d814821e8a8ac6d7c48b2ccfc24bda27b1f.tar.xz linux-dev-7ca99d814821e8a8ac6d7c48b2ccfc24bda27b1f.zip | |
crypto: rng - Add crypto_rng_set_entropy
This patch adds the function crypto_rng_set_entropy. It is only
meant to be used by testmgr when testing RNG implementations by
providing fixed entropy data in order to verify test vectors.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | include/crypto/internal/rng.h | 6 | ||||
| -rw-r--r-- | include/crypto/rng.h | 4 |
2 files changed, 10 insertions, 0 deletions
diff --git a/include/crypto/internal/rng.h b/include/crypto/internal/rng.h index 76f3c9519ba5..93d41bcc444e 100644 --- a/include/crypto/internal/rng.h +++ b/include/crypto/internal/rng.h @@ -26,4 +26,10 @@ static inline void *crypto_rng_ctx(struct crypto_rng *tfm) return crypto_tfm_ctx(&tfm->base); } +static inline void crypto_rng_set_entropy(struct crypto_rng *tfm, + const u8 *data, unsigned int len) +{ + crypto_rng_alg(tfm)->set_ent(tfm, data, len); +} + #endif diff --git a/include/crypto/rng.h b/include/crypto/rng.h index 133f0441ad3e..cc22e52a129a 100644 --- a/include/crypto/rng.h +++ b/include/crypto/rng.h @@ -32,6 +32,8 @@ struct crypto_rng; * up a new state, the seed must be provided by the * consumer while invoking this function. The required * size of the seed is defined with @seedsize . + * @set_ent: Set entropy that would otherwise be obtained from + * entropy source. Internal use only. * @seedsize: The seed size required for a random number generator * initialization defined with this variable. Some * random number generators does not require a seed @@ -45,6 +47,8 @@ struct rng_alg { const u8 *src, unsigned int slen, u8 *dst, unsigned int dlen); int (*seed)(struct crypto_rng *tfm, const u8 *seed, unsigned int slen); + void (*set_ent)(struct crypto_rng *tfm, const u8 *data, + unsigned int len); unsigned int seedsize; |