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| author | Tobias Brunner <tobias@strongswan.org> | 2012-06-22 11:28:43 +0200 |
|---|---|---|
| committer | Tobias Brunner <tobias@strongswan.org> | 2012-06-25 16:35:06 +0200 |
| commit | 01850f5d5554e72fa1975bce1991b9e5182cc59b (patch) | |
| tree | c51bfdb68addaf7b9fde5d90e32f19afe7d185ab | |
| parent | 903093d439c4bc5d6083c07b4a6aa410cf90216e (diff) | |
| download | strongswan-01850f5d5554e72fa1975bce1991b9e5182cc59b.tar.bz2 strongswan-01850f5d5554e72fa1975bce1991b9e5182cc59b.tar.xz | |
Function to convert PRFs to hash algorithms added
| -rw-r--r-- | src/libstrongswan/crypto/hashers/hasher.c | 30 | ||||
| -rw-r--r-- | src/libstrongswan/crypto/hashers/hasher.h | 9 |
2 files changed, 39 insertions, 0 deletions
diff --git a/src/libstrongswan/crypto/hashers/hasher.c b/src/libstrongswan/crypto/hashers/hasher.c index 580976222..e0a4995cf 100644 --- a/src/libstrongswan/crypto/hashers/hasher.c +++ b/src/libstrongswan/crypto/hashers/hasher.c @@ -68,6 +68,36 @@ hash_algorithm_t hasher_algorithm_from_oid(int oid) /* * Described in header. */ +hash_algorithm_t hasher_algorithm_from_prf(pseudo_random_function_t alg) +{ + switch (alg) + { + case PRF_HMAC_MD5: + return HASH_MD5; + case PRF_HMAC_SHA1: + case PRF_FIPS_SHA1_160: + case PRF_KEYED_SHA1: + return HASH_SHA1; + case PRF_HMAC_SHA2_256: + return HASH_SHA256; + case PRF_HMAC_SHA2_384: + return HASH_SHA384; + case PRF_HMAC_SHA2_512: + return HASH_SHA512; + case PRF_HMAC_TIGER: + case PRF_AES128_XCBC: + case PRF_AES128_CMAC: + case PRF_FIPS_DES: + case PRF_CAMELLIA128_XCBC: + case PRF_UNDEFINED: + break; + } + return HASH_UNKNOWN; +} + +/* + * Described in header. + */ hash_algorithm_t hasher_algorithm_from_integrity(integrity_algorithm_t alg, size_t *length) { diff --git a/src/libstrongswan/crypto/hashers/hasher.h b/src/libstrongswan/crypto/hashers/hasher.h index 5325e017b..c5be29edb 100644 --- a/src/libstrongswan/crypto/hashers/hasher.h +++ b/src/libstrongswan/crypto/hashers/hasher.h @@ -27,6 +27,7 @@ typedef enum hash_algorithm_t hash_algorithm_t; typedef struct hasher_t hasher_t; #include <library.h> +#include <crypto/prfs/prf.h> #include <crypto/signers/signer.h> #include <credentials/keys/public_key.h> @@ -120,6 +121,14 @@ struct hasher_t { hash_algorithm_t hasher_algorithm_from_oid(int oid); /** + * Conversion of PRF algorithm to hash algorithm (if based on one). + * + * @param alg prf algorithm + * @return hash algorithm, HASH_UNKNOWN if not based on a hash + */ +hash_algorithm_t hasher_algorithm_from_prf(pseudo_random_function_t alg); + +/** * Conversion of integrity algorithm to hash algorithm (if based on one). * * If length is not NULL the length of the resulting signature is returned, |