diff options
Diffstat (limited to 'src/block/cast')
-rw-r--r-- | src/block/cast/cast128.cpp | 4 | ||||
-rw-r--r-- | src/block/cast/cast128.h | 4 | ||||
-rw-r--r-- | src/block/cast/cast256.cpp | 9 | ||||
-rw-r--r-- | src/block/cast/cast256.h | 6 |
4 files changed, 12 insertions, 11 deletions
diff --git a/src/block/cast/cast128.cpp b/src/block/cast/cast128.cpp index b68b7abd7..48eb910ce 100644 --- a/src/block/cast/cast128.cpp +++ b/src/block/cast/cast128.cpp @@ -119,7 +119,7 @@ void CAST_128::decrypt_n(const byte in[], byte out[], u32bit blocks) const void CAST_128::key_schedule(const byte key[], u32bit length) { clear(); - SecureVector<u32bit, 4> X; + SecureVector<u32bit> X(4); for(u32bit j = 0; j != length; ++j) X[j/4] = (X[j/4] << 8) + key[j]; @@ -145,7 +145,7 @@ void CAST_128::cast_ks(MemoryRegion<u32bit>& K, const u32bit* X; }; - SecureVector<u32bit, 4> Z; + SecureVector<u32bit> Z(4); ByteReader x(&X[0]), z(&Z[0]); Z[0] = X[0] ^ S5[x(13)] ^ S6[x(15)] ^ S7[x(12)] ^ S8[x(14)] ^ S7[x( 8)]; diff --git a/src/block/cast/cast128.h b/src/block/cast/cast128.h index 425eb46cc..bb8332aca 100644 --- a/src/block/cast/cast128.h +++ b/src/block/cast/cast128.h @@ -25,7 +25,7 @@ class BOTAN_DLL CAST_128 : public BlockCipher std::string name() const { return "CAST-128"; } BlockCipher* clone() const { return new CAST_128; } - CAST_128() : BlockCipher(8, 11, 16) {} + CAST_128() : BlockCipher(8, 11, 16), MK(16), RK(16) {} private: void key_schedule(const byte[], u32bit); @@ -37,7 +37,7 @@ class BOTAN_DLL CAST_128 : public BlockCipher static const u32bit S7[256]; static const u32bit S8[256]; - SecureVector<u32bit, 16> MK, RK; + SecureVector<u32bit> MK, RK; }; extern const u32bit CAST_SBOX1[256]; diff --git a/src/block/cast/cast256.cpp b/src/block/cast/cast256.cpp index 8aaf8009f..551d4e387 100644 --- a/src/block/cast/cast256.cpp +++ b/src/block/cast/cast256.cpp @@ -138,12 +138,13 @@ void CAST_256::decrypt_n(const byte in[], byte out[], u32bit blocks) const */ void CAST_256::key_schedule(const byte key[], u32bit length) { - SecureVector<u32bit, 8> TMP; + SecureVector<u32bit> K(8); for(u32bit j = 0; j != length; ++j) - TMP[j/4] = (TMP[j/4] << 8) + key[j]; + K[j/4] = (K[j/4] << 8) + key[j]; + + u32bit A = K[0], B = K[1], C = K[2], D = K[3], + E = K[4], F = K[5], G = K[6], H = K[7]; - u32bit A = TMP[0], B = TMP[1], C = TMP[2], D = TMP[3], - E = TMP[4], F = TMP[5], G = TMP[6], H = TMP[7]; for(u32bit j = 0; j != 48; j += 4) { round1(G, H, KEY_MASK[4*j+ 0], KEY_ROT[(4*j+ 0) % 32]); diff --git a/src/block/cast/cast256.h b/src/block/cast/cast256.h index c9820c1ab..533f57ac1 100644 --- a/src/block/cast/cast256.h +++ b/src/block/cast/cast256.h @@ -25,15 +25,15 @@ class BOTAN_DLL CAST_256 : public BlockCipher std::string name() const { return "CAST-256"; } BlockCipher* clone() const { return new CAST_256; } - CAST_256() : BlockCipher(16, 4, 32, 4) {} + CAST_256() : BlockCipher(16, 4, 32, 4), MK(48), RK(48) {} private: void key_schedule(const byte[], u32bit); static const u32bit KEY_MASK[192]; static const byte KEY_ROT[32]; - SecureVector<u32bit, 48> MK; - SecureVector<byte, 48> RK; + SecureVector<u32bit> MK; + SecureVector<byte> RK; }; extern const u32bit CAST_SBOX1[256]; |