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| author | Tobias Brunner <tobias@strongswan.org> | 2012-06-22 11:28:10 +0200 |
|---|---|---|
| committer | Tobias Brunner <tobias@strongswan.org> | 2012-06-25 16:35:06 +0200 |
| commit | 903093d439c4bc5d6083c07b4a6aa410cf90216e (patch) | |
| tree | d7c609779bc80370452fc13bc3ffe268641e6993 /src/libstrongswan/crypto/hashers/hasher.c | |
| parent | 73d032e41276ecca3b1b7c7f95c805a649113b48 (diff) | |
| download | strongswan-903093d439c4bc5d6083c07b4a6aa410cf90216e.tar.bz2 strongswan-903093d439c4bc5d6083c07b4a6aa410cf90216e.tar.xz | |
hasher_algorithm_from_integrity() optionally returns truncation length
Diffstat (limited to 'src/libstrongswan/crypto/hashers/hasher.c')
| -rw-r--r-- | src/libstrongswan/crypto/hashers/hasher.c | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/src/libstrongswan/crypto/hashers/hasher.c b/src/libstrongswan/crypto/hashers/hasher.c index 6cf828a36..580976222 100644 --- a/src/libstrongswan/crypto/hashers/hasher.c +++ b/src/libstrongswan/crypto/hashers/hasher.c @@ -68,9 +68,41 @@ hash_algorithm_t hasher_algorithm_from_oid(int oid) /* * Described in header. */ -hash_algorithm_t hasher_algorithm_from_integrity(integrity_algorithm_t integrity) +hash_algorithm_t hasher_algorithm_from_integrity(integrity_algorithm_t alg, + size_t *length) { - switch (integrity) + if (length) + { + switch (alg) + { + case AUTH_HMAC_MD5_96: + case AUTH_HMAC_SHA1_96: + case AUTH_HMAC_SHA2_256_96: + *length = 12; + break; + case AUTH_HMAC_MD5_128: + case AUTH_HMAC_SHA1_128: + case AUTH_HMAC_SHA2_256_128: + *length = 16; + break; + case AUTH_HMAC_SHA1_160: + *length = 20; + break; + case AUTH_HMAC_SHA2_384_192: + *length = 24; + break; + case AUTH_HMAC_SHA2_256_256: + case AUTH_HMAC_SHA2_512_256: + *length = 32; + break; + case AUTH_HMAC_SHA2_384_384: + *length = 48; + break; + default: + break; + } + } + switch (alg) { case AUTH_HMAC_MD5_96: case AUTH_HMAC_MD5_128: |