diff options
Diffstat (limited to 'src/block/twofish/twofish.cpp')
| -rw-r--r-- | src/block/twofish/twofish.cpp | 40 |
1 files changed, 21 insertions, 19 deletions
diff --git a/src/block/twofish/twofish.cpp b/src/block/twofish/twofish.cpp index d6bab2fc5..edc476d15 100644 --- a/src/block/twofish/twofish.cpp +++ b/src/block/twofish/twofish.cpp @@ -1,7 +1,9 @@ -/************************************************* -* Twofish Source File * -* (C) 1999-2007 Jack Lloyd * -*************************************************/ +/* +* Twofish +* (C) 1999-2007 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ #include <botan/twofish.h> #include <botan/loadstor.h> @@ -9,9 +11,9 @@ namespace Botan { -/************************************************* -* Twofish Encryption * -*************************************************/ +/* +* Twofish Encryption +*/ void Twofish::enc(const byte in[], byte out[]) const { u32bit A = load_le<u32bit>(in, 0) ^ round_key[0]; @@ -54,9 +56,9 @@ void Twofish::enc(const byte in[], byte out[]) const store_le(out, C, D, A, B); } -/************************************************* -* Twofish Decryption * -*************************************************/ +/* +* Twofish Decryption +*/ void Twofish::dec(const byte in[], byte out[]) const { u32bit A = load_le<u32bit>(in, 0) ^ round_key[4]; @@ -99,9 +101,9 @@ void Twofish::dec(const byte in[], byte out[]) const store_le(out, C, D, A, B); } -/************************************************* -* Twofish Key Schedule * -*************************************************/ +/* +* Twofish Key Schedule +*/ void Twofish::key_schedule(const byte key[], u32bit length) { SecureBuffer<byte, 16> S; @@ -180,9 +182,9 @@ void Twofish::key_schedule(const byte key[], u32bit length) } } -/************************************************* -* Do one column of the RS matrix multiplcation * -*************************************************/ +/* +* Do one column of the RS matrix multiplcation +*/ void Twofish::rs_mul(byte S[4], byte key, u32bit offset) { if(key) @@ -201,9 +203,9 @@ void Twofish::rs_mul(byte S[4], byte key, u32bit offset) } } -/************************************************* -* Clear memory of sensitive data * -*************************************************/ +/* +* Clear memory of sensitive data +*/ void Twofish::clear() throw() { SBox0.clear(); |