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Diffstat (limited to 'src/kdf/kdf1/kdf1.cpp')
-rw-r--r-- | src/kdf/kdf1/kdf1.cpp | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/kdf/kdf1/kdf1.cpp b/src/kdf/kdf1/kdf1.cpp new file mode 100644 index 000000000..aac32db80 --- /dev/null +++ b/src/kdf/kdf1/kdf1.cpp @@ -0,0 +1,35 @@ +/************************************************* +* KDF1 Source File * +* (C) 1999-2007 Jack Lloyd * +*************************************************/ + +#include <botan/kdf1.h> +#include <botan/lookup.h> +#include <memory> + +namespace Botan { + +/************************************************* +* KDF1 Key Derivation Mechanism * +*************************************************/ +SecureVector<byte> KDF1::derive(u32bit, + const byte secret[], u32bit secret_len, + const byte P[], u32bit P_len) const + { + std::auto_ptr<HashFunction> hash(get_hash(hash_name)); + + hash->update(secret, secret_len); + hash->update(P, P_len); + return hash->final(); + } + +/************************************************* +* KDF1 Constructor * +*************************************************/ +KDF1::KDF1(const std::string& h_name) : hash_name(h_name) + { + if(!have_hash(hash_name)) + throw Algorithm_Not_Found(hash_name); + } + +} |