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| author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2015-03-25 12:56:13 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-03-27 07:49:45 +0100 |
| commit | e10cc0b3330d4dd72fef076a7f1b2b67cb271a12 (patch) | |
| tree | 4122c65e03433a8936fa7f5fbb9bdfb279337e26 | |
| parent | 5afec9c781406a0aa3080c9aacb17c3f75abc0aa (diff) | |
| download | barebox-e10cc0b3330d4dd72fef076a7f1b2b67cb271a12.tar.gz barebox-e10cc0b3330d4dd72fef076a7f1b2b67cb271a12.tar.xz | |
digest: allow algo to specify their length at runtime
such as RSA as we load a DER key we will detect the key size
at runtime and so the algo length.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | crypto/digest.c | 3 | ||||
| -rw-r--r-- | include/digest.h | 3 |
2 files changed, 3 insertions, 3 deletions
diff --git a/crypto/digest.c b/crypto/digest.c index 047131b537..f902dc1fb1 100644 --- a/crypto/digest.c +++ b/crypto/digest.c @@ -78,8 +78,7 @@ int digest_generic_digest(struct digest *d, const void *data, int digest_algo_register(struct digest_algo *d) { - if (!d || !d->name || !d->update || !d->final || !d->verify || - d->length < 1) + if (!d || !d->name || !d->update || !d->final || !d->verify) return -EINVAL; if (!d->init) diff --git a/include/digest.h b/include/digest.h index 85c4da36f5..c574b4d568 100644 --- a/include/digest.h +++ b/include/digest.h @@ -47,6 +47,7 @@ struct digest_algo { struct digest { struct digest_algo *algo; void *ctx; + unsigned int length; }; /* @@ -99,7 +100,7 @@ static inline int digest_verify(struct digest *d, const unsigned char *md) static inline int digest_length(struct digest *d) { - return d->algo->length; + return d->length ? d->length : d->algo->length; } static inline int digest_set_key(struct digest *d, const unsigned char *key, |