diff options
author | lloyd <[email protected]> | 2009-11-03 23:41:56 +0000 |
---|---|---|
committer | lloyd <[email protected]> | 2009-11-03 23:41:56 +0000 |
commit | 30f6169ebf9164a6fdb35519030975440a5b07d7 (patch) | |
tree | 8435e826dd692066c6c3fc56d02f8f4479188c02 /src/block/cast | |
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/cast')
-rw-r--r-- | src/block/cast/cast128.cpp | 100 | ||||
-rw-r--r-- | src/block/cast/cast128.h | 8 | ||||
-rw-r--r-- | src/block/cast/cast256.cpp | 140 | ||||
-rw-r--r-- | src/block/cast/cast256.h | 8 | ||||
-rw-r--r-- | src/block/cast/info.txt | 12 |
5 files changed, 142 insertions, 126 deletions
diff --git a/src/block/cast/cast128.cpp b/src/block/cast/cast128.cpp index 046638ab9..887dcf994 100644 --- a/src/block/cast/cast128.cpp +++ b/src/block/cast/cast128.cpp @@ -48,57 +48,69 @@ inline void R3(u32bit& L, u32bit R, u32bit MK, u32bit RK) /* * CAST-128 Encryption */ -void CAST_128::enc(const byte in[], byte out[]) const +void CAST_128::encrypt_n(const byte in[], byte out[], u32bit blocks) const { - u32bit L = load_be<u32bit>(in, 0); - u32bit R = load_be<u32bit>(in, 1); - - R1(L, R, MK[ 0], RK[ 0]); - R2(R, L, MK[ 1], RK[ 1]); - R3(L, R, MK[ 2], RK[ 2]); - R1(R, L, MK[ 3], RK[ 3]); - R2(L, R, MK[ 4], RK[ 4]); - R3(R, L, MK[ 5], RK[ 5]); - R1(L, R, MK[ 6], RK[ 6]); - R2(R, L, MK[ 7], RK[ 7]); - R3(L, R, MK[ 8], RK[ 8]); - R1(R, L, MK[ 9], RK[ 9]); - R2(L, R, MK[10], RK[10]); - R3(R, L, MK[11], RK[11]); - R1(L, R, MK[12], RK[12]); - R2(R, L, MK[13], RK[13]); - R3(L, R, MK[14], RK[14]); - R1(R, L, MK[15], RK[15]); - - store_be(out, R, L); + for(u32bit i = 0; i != blocks; ++i) + { + u32bit L = load_be<u32bit>(in, 0); + u32bit R = load_be<u32bit>(in, 1); + + R1(L, R, MK[ 0], RK[ 0]); + R2(R, L, MK[ 1], RK[ 1]); + R3(L, R, MK[ 2], RK[ 2]); + R1(R, L, MK[ 3], RK[ 3]); + R2(L, R, MK[ 4], RK[ 4]); + R3(R, L, MK[ 5], RK[ 5]); + R1(L, R, MK[ 6], RK[ 6]); + R2(R, L, MK[ 7], RK[ 7]); + R3(L, R, MK[ 8], RK[ 8]); + R1(R, L, MK[ 9], RK[ 9]); + R2(L, R, MK[10], RK[10]); + R3(R, L, MK[11], RK[11]); + R1(L, R, MK[12], RK[12]); + R2(R, L, MK[13], RK[13]); + R3(L, R, MK[14], RK[14]); + R1(R, L, MK[15], RK[15]); + + store_be(out, R, L); + + in += BLOCK_SIZE; + out += BLOCK_SIZE; + } } /* * CAST-128 Decryption */ -void CAST_128::dec(const byte in[], byte out[]) const +void CAST_128::decrypt_n(const byte in[], byte out[], u32bit blocks) const { - u32bit L = load_be<u32bit>(in, 0); - u32bit R = load_be<u32bit>(in, 1); - - R1(L, R, MK[15], RK[15]); - R3(R, L, MK[14], RK[14]); - R2(L, R, MK[13], RK[13]); - R1(R, L, MK[12], RK[12]); - R3(L, R, MK[11], RK[11]); - R2(R, L, MK[10], RK[10]); - R1(L, R, MK[ 9], RK[ 9]); - R3(R, L, MK[ 8], RK[ 8]); - R2(L, R, MK[ 7], RK[ 7]); - R1(R, L, MK[ 6], RK[ 6]); - R3(L, R, MK[ 5], RK[ 5]); - R2(R, L, MK[ 4], RK[ 4]); - R1(L, R, MK[ 3], RK[ 3]); - R3(R, L, MK[ 2], RK[ 2]); - R2(L, R, MK[ 1], RK[ 1]); - R1(R, L, MK[ 0], RK[ 0]); - - store_be(out, R, L); + for(u32bit i = 0; i != blocks; ++i) + { + u32bit L = load_be<u32bit>(in, 0); + u32bit R = load_be<u32bit>(in, 1); + + R1(L, R, MK[15], RK[15]); + R3(R, L, MK[14], RK[14]); + R2(L, R, MK[13], RK[13]); + R1(R, L, MK[12], RK[12]); + R3(L, R, MK[11], RK[11]); + R2(R, L, MK[10], RK[10]); + R1(L, R, MK[ 9], RK[ 9]); + R3(R, L, MK[ 8], RK[ 8]); + R2(L, R, MK[ 7], RK[ 7]); + R1(R, L, MK[ 6], RK[ 6]); + R3(L, R, MK[ 5], RK[ 5]); + R2(R, L, MK[ 4], RK[ 4]); + R1(L, R, MK[ 3], RK[ 3]); + R3(R, L, MK[ 2], RK[ 2]); + R2(L, R, MK[ 1], RK[ 1]); + R1(R, L, MK[ 0], RK[ 0]); + + store_be(out, R, L); + + in += BLOCK_SIZE; + out += BLOCK_SIZE; + } } /* diff --git a/src/block/cast/cast128.h b/src/block/cast/cast128.h index 680481482..caffb97ea 100644 --- a/src/block/cast/cast128.h +++ b/src/block/cast/cast128.h @@ -18,13 +18,15 @@ namespace Botan { class BOTAN_DLL CAST_128 : public BlockCipher { public: - void clear() throw() { MK.clear(); RK.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() { MK.clear(); RK.clear(); } std::string name() const { return "CAST-128"; } BlockCipher* clone() const { return new CAST_128; } + CAST_128() : BlockCipher(8, 11, 16) {} private: - void enc(const byte[], byte[]) const; - void dec(const byte[], byte[]) const; void key_schedule(const byte[], u32bit); static void key_schedule(u32bit[16], u32bit[4]); diff --git a/src/block/cast/cast256.cpp b/src/block/cast/cast256.cpp index 22ff876fa..7a4a4e805 100644 --- a/src/block/cast/cast256.cpp +++ b/src/block/cast/cast256.cpp @@ -48,77 +48,89 @@ void round3(u32bit& out, u32bit in, u32bit mask, u32bit rot) /* * CAST-256 Encryption */ -void CAST_256::enc(const byte in[], byte out[]) const +void CAST_256::encrypt_n(const byte in[], byte out[], u32bit blocks) const { - u32bit A = load_be<u32bit>(in, 0); - u32bit B = load_be<u32bit>(in, 1); - u32bit C = load_be<u32bit>(in, 2); - u32bit D = load_be<u32bit>(in, 3); - - round1(C, D, MK[ 0], RK[ 0]); round2(B, C, MK[ 1], RK[ 1]); - round3(A, B, MK[ 2], RK[ 2]); round1(D, A, MK[ 3], RK[ 3]); - round1(C, D, MK[ 4], RK[ 4]); round2(B, C, MK[ 5], RK[ 5]); - round3(A, B, MK[ 6], RK[ 6]); round1(D, A, MK[ 7], RK[ 7]); - round1(C, D, MK[ 8], RK[ 8]); round2(B, C, MK[ 9], RK[ 9]); - round3(A, B, MK[10], RK[10]); round1(D, A, MK[11], RK[11]); - round1(C, D, MK[12], RK[12]); round2(B, C, MK[13], RK[13]); - round3(A, B, MK[14], RK[14]); round1(D, A, MK[15], RK[15]); - round1(C, D, MK[16], RK[16]); round2(B, C, MK[17], RK[17]); - round3(A, B, MK[18], RK[18]); round1(D, A, MK[19], RK[19]); - round1(C, D, MK[20], RK[20]); round2(B, C, MK[21], RK[21]); - round3(A, B, MK[22], RK[22]); round1(D, A, MK[23], RK[23]); - round1(D, A, MK[27], RK[27]); round3(A, B, MK[26], RK[26]); - round2(B, C, MK[25], RK[25]); round1(C, D, MK[24], RK[24]); - round1(D, A, MK[31], RK[31]); round3(A, B, MK[30], RK[30]); - round2(B, C, MK[29], RK[29]); round1(C, D, MK[28], RK[28]); - round1(D, A, MK[35], RK[35]); round3(A, B, MK[34], RK[34]); - round2(B, C, MK[33], RK[33]); round1(C, D, MK[32], RK[32]); - round1(D, A, MK[39], RK[39]); round3(A, B, MK[38], RK[38]); - round2(B, C, MK[37], RK[37]); round1(C, D, MK[36], RK[36]); - round1(D, A, MK[43], RK[43]); round3(A, B, MK[42], RK[42]); - round2(B, C, MK[41], RK[41]); round1(C, D, MK[40], RK[40]); - round1(D, A, MK[47], RK[47]); round3(A, B, MK[46], RK[46]); - round2(B, C, MK[45], RK[45]); round1(C, D, MK[44], RK[44]); - - store_be(out, A, B, C, D); + for(u32bit i = 0; i != blocks; ++i) + { + u32bit A = load_be<u32bit>(in, 0); + u32bit B = load_be<u32bit>(in, 1); + u32bit C = load_be<u32bit>(in, 2); + u32bit D = load_be<u32bit>(in, 3); + + round1(C, D, MK[ 0], RK[ 0]); round2(B, C, MK[ 1], RK[ 1]); + round3(A, B, MK[ 2], RK[ 2]); round1(D, A, MK[ 3], RK[ 3]); + round1(C, D, MK[ 4], RK[ 4]); round2(B, C, MK[ 5], RK[ 5]); + round3(A, B, MK[ 6], RK[ 6]); round1(D, A, MK[ 7], RK[ 7]); + round1(C, D, MK[ 8], RK[ 8]); round2(B, C, MK[ 9], RK[ 9]); + round3(A, B, MK[10], RK[10]); round1(D, A, MK[11], RK[11]); + round1(C, D, MK[12], RK[12]); round2(B, C, MK[13], RK[13]); + round3(A, B, MK[14], RK[14]); round1(D, A, MK[15], RK[15]); + round1(C, D, MK[16], RK[16]); round2(B, C, MK[17], RK[17]); + round3(A, B, MK[18], RK[18]); round1(D, A, MK[19], RK[19]); + round1(C, D, MK[20], RK[20]); round2(B, C, MK[21], RK[21]); + round3(A, B, MK[22], RK[22]); round1(D, A, MK[23], RK[23]); + round1(D, A, MK[27], RK[27]); round3(A, B, MK[26], RK[26]); + round2(B, C, MK[25], RK[25]); round1(C, D, MK[24], RK[24]); + round1(D, A, MK[31], RK[31]); round3(A, B, MK[30], RK[30]); + round2(B, C, MK[29], RK[29]); round1(C, D, MK[28], RK[28]); + round1(D, A, MK[35], RK[35]); round3(A, B, MK[34], RK[34]); + round2(B, C, MK[33], RK[33]); round1(C, D, MK[32], RK[32]); + round1(D, A, MK[39], RK[39]); round3(A, B, MK[38], RK[38]); + round2(B, C, MK[37], RK[37]); round1(C, D, MK[36], RK[36]); + round1(D, A, MK[43], RK[43]); round3(A, B, MK[42], RK[42]); + round2(B, C, MK[41], RK[41]); round1(C, D, MK[40], RK[40]); + round1(D, A, MK[47], RK[47]); round3(A, B, MK[46], RK[46]); + round2(B, C, MK[45], RK[45]); round1(C, D, MK[44], RK[44]); + + store_be(out, A, B, C, D); + + in += BLOCK_SIZE; + out += BLOCK_SIZE; + } } /* * CAST-256 Decryption */ -void CAST_256::dec(const byte in[], byte out[]) const +void CAST_256::decrypt_n(const byte in[], byte out[], u32bit blocks) const { - u32bit A = load_be<u32bit>(in, 0); - u32bit B = load_be<u32bit>(in, 1); - u32bit C = load_be<u32bit>(in, 2); - u32bit D = load_be<u32bit>(in, 3); - - round1(C, D, MK[44], RK[44]); round2(B, C, MK[45], RK[45]); - round3(A, B, MK[46], RK[46]); round1(D, A, MK[47], RK[47]); - round1(C, D, MK[40], RK[40]); round2(B, C, MK[41], RK[41]); - round3(A, B, MK[42], RK[42]); round1(D, A, MK[43], RK[43]); - round1(C, D, MK[36], RK[36]); round2(B, C, MK[37], RK[37]); - round3(A, B, MK[38], RK[38]); round1(D, A, MK[39], RK[39]); - round1(C, D, MK[32], RK[32]); round2(B, C, MK[33], RK[33]); - round3(A, B, MK[34], RK[34]); round1(D, A, MK[35], RK[35]); - round1(C, D, MK[28], RK[28]); round2(B, C, MK[29], RK[29]); - round3(A, B, MK[30], RK[30]); round1(D, A, MK[31], RK[31]); - round1(C, D, MK[24], RK[24]); round2(B, C, MK[25], RK[25]); - round3(A, B, MK[26], RK[26]); round1(D, A, MK[27], RK[27]); - round1(D, A, MK[23], RK[23]); round3(A, B, MK[22], RK[22]); - round2(B, C, MK[21], RK[21]); round1(C, D, MK[20], RK[20]); - round1(D, A, MK[19], RK[19]); round3(A, B, MK[18], RK[18]); - round2(B, C, MK[17], RK[17]); round1(C, D, MK[16], RK[16]); - round1(D, A, MK[15], RK[15]); round3(A, B, MK[14], RK[14]); - round2(B, C, MK[13], RK[13]); round1(C, D, MK[12], RK[12]); - round1(D, A, MK[11], RK[11]); round3(A, B, MK[10], RK[10]); - round2(B, C, MK[ 9], RK[ 9]); round1(C, D, MK[ 8], RK[ 8]); - round1(D, A, MK[ 7], RK[ 7]); round3(A, B, MK[ 6], RK[ 6]); - round2(B, C, MK[ 5], RK[ 5]); round1(C, D, MK[ 4], RK[ 4]); - round1(D, A, MK[ 3], RK[ 3]); round3(A, B, MK[ 2], RK[ 2]); - round2(B, C, MK[ 1], RK[ 1]); round1(C, D, MK[ 0], RK[ 0]); - - store_be(out, A, B, C, D); + for(u32bit i = 0; i != blocks; ++i) + { + u32bit A = load_be<u32bit>(in, 0); + u32bit B = load_be<u32bit>(in, 1); + u32bit C = load_be<u32bit>(in, 2); + u32bit D = load_be<u32bit>(in, 3); + + round1(C, D, MK[44], RK[44]); round2(B, C, MK[45], RK[45]); + round3(A, B, MK[46], RK[46]); round1(D, A, MK[47], RK[47]); + round1(C, D, MK[40], RK[40]); round2(B, C, MK[41], RK[41]); + round3(A, B, MK[42], RK[42]); round1(D, A, MK[43], RK[43]); + round1(C, D, MK[36], RK[36]); round2(B, C, MK[37], RK[37]); + round3(A, B, MK[38], RK[38]); round1(D, A, MK[39], RK[39]); + round1(C, D, MK[32], RK[32]); round2(B, C, MK[33], RK[33]); + round3(A, B, MK[34], RK[34]); round1(D, A, MK[35], RK[35]); + round1(C, D, MK[28], RK[28]); round2(B, C, MK[29], RK[29]); + round3(A, B, MK[30], RK[30]); round1(D, A, MK[31], RK[31]); + round1(C, D, MK[24], RK[24]); round2(B, C, MK[25], RK[25]); + round3(A, B, MK[26], RK[26]); round1(D, A, MK[27], RK[27]); + round1(D, A, MK[23], RK[23]); round3(A, B, MK[22], RK[22]); + round2(B, C, MK[21], RK[21]); round1(C, D, MK[20], RK[20]); + round1(D, A, MK[19], RK[19]); round3(A, B, MK[18], RK[18]); + round2(B, C, MK[17], RK[17]); round1(C, D, MK[16], RK[16]); + round1(D, A, MK[15], RK[15]); round3(A, B, MK[14], RK[14]); + round2(B, C, MK[13], RK[13]); round1(C, D, MK[12], RK[12]); + round1(D, A, MK[11], RK[11]); round3(A, B, MK[10], RK[10]); + round2(B, C, MK[ 9], RK[ 9]); round1(C, D, MK[ 8], RK[ 8]); + round1(D, A, MK[ 7], RK[ 7]); round3(A, B, MK[ 6], RK[ 6]); + round2(B, C, MK[ 5], RK[ 5]); round1(C, D, MK[ 4], RK[ 4]); + round1(D, A, MK[ 3], RK[ 3]); round3(A, B, MK[ 2], RK[ 2]); + round2(B, C, MK[ 1], RK[ 1]); round1(C, D, MK[ 0], RK[ 0]); + + store_be(out, A, B, C, D); + + in += BLOCK_SIZE; + out += BLOCK_SIZE; + } } /* diff --git a/src/block/cast/cast256.h b/src/block/cast/cast256.h index cd48edd5e..0db3682ba 100644 --- a/src/block/cast/cast256.h +++ b/src/block/cast/cast256.h @@ -18,13 +18,15 @@ namespace Botan { class BOTAN_DLL CAST_256 : public BlockCipher { public: - void clear() throw() { MK.clear(); RK.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() { MK.clear(); RK.clear(); } std::string name() const { return "CAST-256"; } BlockCipher* clone() const { return new CAST_256; } + CAST_256() : BlockCipher(16, 4, 32, 4) {} private: - void enc(const byte[], byte[]) const; - void dec(const byte[], byte[]) const; void key_schedule(const byte[], u32bit); static const u32bit KEY_MASK[192]; diff --git a/src/block/cast/info.txt b/src/block/cast/info.txt index 73d3f900f..faba491c2 100644 --- a/src/block/cast/info.txt +++ b/src/block/cast/info.txt @@ -1,13 +1 @@ -realname "CAST" - define CAST - -load_on auto - -<add> -cast128.cpp -cast128.h -cast256.cpp -cast256.h -cast_tab.cpp -</add> |