diff options
author | lloyd <[email protected]> | 2009-11-03 23:41:56 +0000 |
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committer | lloyd <[email protected]> | 2009-11-03 23:41:56 +0000 |
commit | 30f6169ebf9164a6fdb35519030975440a5b07d7 (patch) | |
tree | 8435e826dd692066c6c3fc56d02f8f4479188c02 /src/block/gost_28147 | |
parent | cb0d4a18f2fc77a40f6055fedb43b78606068b7b (diff) | |
parent | 226d96ee4e64994beb9ec9436a29ac6656d61924 (diff) |
propagate from branch 'net.randombit.botan.1_8' (head 6e8c18515725a70923b34118951252723dd4c29a)
to branch 'net.randombit.botan' (head 77ba4ea5a4be36d6d029bcc852b2271edff0d679)
Diffstat (limited to 'src/block/gost_28147')
-rw-r--r-- | src/block/gost_28147/gost_28147.cpp | 67 | ||||
-rw-r--r-- | src/block/gost_28147/gost_28147.h | 7 | ||||
-rw-r--r-- | src/block/gost_28147/info.txt | 9 |
3 files changed, 43 insertions, 40 deletions
diff --git a/src/block/gost_28147/gost_28147.cpp b/src/block/gost_28147/gost_28147.cpp index bfd092c56..272f1bcab 100644 --- a/src/block/gost_28147/gost_28147.cpp +++ b/src/block/gost_28147/gost_28147.cpp @@ -84,47 +84,58 @@ GOST_28147_89::GOST_28147_89(const GOST_28147_89_Params& param) : /* * GOST Encryption */ -void GOST_28147_89::enc(const byte in[], byte out[]) const +void GOST_28147_89::encrypt_n(const byte in[], byte out[], u32bit blocks) const { - u32bit N1 = load_le<u32bit>(in, 0), N2 = load_le<u32bit>(in, 1); - - for(size_t i = 0; i != 3; ++i) + for(u32bit i = 0; i != blocks; ++i) { - GOST_2ROUND(N1, N2, 0, 1); - GOST_2ROUND(N1, N2, 2, 3); - GOST_2ROUND(N1, N2, 4, 5); - GOST_2ROUND(N1, N2, 6, 7); - } + u32bit N1 = load_le<u32bit>(in, 0), N2 = load_le<u32bit>(in, 1); - GOST_2ROUND(N1, N2, 7, 6); - GOST_2ROUND(N1, N2, 5, 4); - GOST_2ROUND(N1, N2, 3, 2); - GOST_2ROUND(N1, N2, 1, 0); + for(size_t j = 0; j != 3; ++j) + { + GOST_2ROUND(N1, N2, 0, 1); + GOST_2ROUND(N1, N2, 2, 3); + GOST_2ROUND(N1, N2, 4, 5); + GOST_2ROUND(N1, N2, 6, 7); + } - store_le(out, N2, N1); + GOST_2ROUND(N1, N2, 7, 6); + GOST_2ROUND(N1, N2, 5, 4); + GOST_2ROUND(N1, N2, 3, 2); + GOST_2ROUND(N1, N2, 1, 0); + + store_le(out, N2, N1); + + in += BLOCK_SIZE; + out += BLOCK_SIZE; + } } /* * GOST Decryption */ -void GOST_28147_89::dec(const byte in[], byte out[]) const +void GOST_28147_89::decrypt_n(const byte in[], byte out[], u32bit blocks) const { - u32bit N1 = load_le<u32bit>(in, 0), N2 = load_le<u32bit>(in, 1); + for(u32bit i = 0; i != blocks; ++i) + { + u32bit N1 = load_le<u32bit>(in, 0), N2 = load_le<u32bit>(in, 1); - GOST_2ROUND(N1, N2, 0, 1); - GOST_2ROUND(N1, N2, 2, 3); - GOST_2ROUND(N1, N2, 4, 5); - GOST_2ROUND(N1, N2, 6, 7); + GOST_2ROUND(N1, N2, 0, 1); + GOST_2ROUND(N1, N2, 2, 3); + GOST_2ROUND(N1, N2, 4, 5); + GOST_2ROUND(N1, N2, 6, 7); - for(size_t i = 0; i != 3; ++i) - { - GOST_2ROUND(N1, N2, 7, 6); - GOST_2ROUND(N1, N2, 5, 4); - GOST_2ROUND(N1, N2, 3, 2); - GOST_2ROUND(N1, N2, 1, 0); - } + for(size_t i = 0; i != 3; ++i) + { + GOST_2ROUND(N1, N2, 7, 6); + GOST_2ROUND(N1, N2, 5, 4); + GOST_2ROUND(N1, N2, 3, 2); + GOST_2ROUND(N1, N2, 1, 0); + } - store_le(out, N2, N1); + store_le(out, N2, N1); + in += BLOCK_SIZE; + out += BLOCK_SIZE; + } } /* diff --git a/src/block/gost_28147/gost_28147.h b/src/block/gost_28147/gost_28147.h index 96d24c669..bf6f8178b 100644 --- a/src/block/gost_28147/gost_28147.h +++ b/src/block/gost_28147/gost_28147.h @@ -44,7 +44,10 @@ class GOST_28147_89_Params class BOTAN_DLL GOST_28147_89 : public BlockCipher { public: - void clear() throw() { EK.clear(); } + void encrypt_n(const byte in[], byte out[], u32bit blocks) const; + void decrypt_n(const byte in[], byte out[], u32bit blocks) const; + + void clear() { EK.clear(); } std::string name() const { return "GOST-28147-89"; } BlockCipher* clone() const { return new GOST_28147_89(SBOX); } @@ -54,8 +57,6 @@ class BOTAN_DLL GOST_28147_89 : public BlockCipher GOST_28147_89(const SecureBuffer<u32bit, 1024>& other_SBOX) : BlockCipher(8, 32), SBOX(other_SBOX) {} - void enc(const byte[], byte[]) const; - void dec(const byte[], byte[]) const; void key_schedule(const byte[], u32bit); SecureBuffer<u32bit, 1024> SBOX; diff --git a/src/block/gost_28147/info.txt b/src/block/gost_28147/info.txt index 6e187fd48..530f147e5 100644 --- a/src/block/gost_28147/info.txt +++ b/src/block/gost_28147/info.txt @@ -1,10 +1 @@ -realname "GOST 28147-89" - define GOST_28147_89 - -load_on auto - -<add> -gost_28147.cpp -gost_28147.h -</add> |