diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/libstrongswan/crypto/xofs/xof.c | 29 | ||||
| -rw-r--r-- | src/libstrongswan/crypto/xofs/xof.h | 9 |
2 files changed, 38 insertions, 0 deletions
diff --git a/src/libstrongswan/crypto/xofs/xof.c b/src/libstrongswan/crypto/xofs/xof.c index 1e9c2834b..791598588 100644 --- a/src/libstrongswan/crypto/xofs/xof.c +++ b/src/libstrongswan/crypto/xofs/xof.c @@ -1,4 +1,5 @@ /* + * Copyright (C) 2017 Tobias Brunner * Copyright (C) 2016 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * @@ -25,3 +26,31 @@ ENUM(ext_out_function_names, XOF_UNDEFINED, XOF_CHACHA20, "XOF_CHACHA20" ); +/* + * Described in header + */ +ext_out_function_t xof_mgf1_from_hash_algorithm(hash_algorithm_t alg) +{ + switch (alg) + { + case HASH_SHA1: + return XOF_MGF1_SHA1; + case HASH_SHA256: + return XOF_MGF1_SHA256; + case HASH_SHA512: + return XOF_MGF1_SHA512; + case HASH_SHA224: + case HASH_SHA384: + case HASH_IDENTITY: + case HASH_UNKNOWN: + case HASH_MD2: + case HASH_MD4: + case HASH_MD5: + case HASH_SHA3_224: + case HASH_SHA3_256: + case HASH_SHA3_384: + case HASH_SHA3_512: + break; + } + return XOF_UNDEFINED; +} diff --git a/src/libstrongswan/crypto/xofs/xof.h b/src/libstrongswan/crypto/xofs/xof.h index 8c9ae0131..83c9ab857 100644 --- a/src/libstrongswan/crypto/xofs/xof.h +++ b/src/libstrongswan/crypto/xofs/xof.h @@ -1,4 +1,5 @@ /* + * Copyright (C) 2017 Tobias Brunner * Copyright (C) 2016 Andreas Steffen * HSR Hochschule fuer Technik Rapperswil * @@ -111,4 +112,12 @@ struct xof_t { void (*destroy)(xof_t *this); }; +/** + * Determine an MGF1 XOF type for the given hash algorithm. + * + * @param alg hash algorithm to map + * @return MGF1 XOF type if available, XOF_UNDEFINED otherwise + */ +ext_out_function_t xof_mgf1_from_hash_algorithm(hash_algorithm_t alg); + #endif /** XOF_H_ @}*/ |