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authorlloyd <[email protected]>2010-10-13 01:34:15 +0000
committerlloyd <[email protected]>2010-10-13 01:34:15 +0000
commitfe4119c74b5e81a354a5313e4d2efbf9a135aa81 (patch)
tree5c5254cc3a4e5713169ef1d52a83db19c8c4ed65 /src/block/idea
parent60fb91d8cb1710d07041f76050d24229ce91131b (diff)
Use size_t rather than u32bit in SymmetricAlgorithm
Diffstat (limited to 'src/block/idea')
-rw-r--r--src/block/idea/idea.cpp28
-rw-r--r--src/block/idea/idea.h2
2 files changed, 15 insertions, 15 deletions
diff --git a/src/block/idea/idea.cpp b/src/block/idea/idea.cpp
index 8201c9193..be7680b2c 100644
--- a/src/block/idea/idea.cpp
+++ b/src/block/idea/idea.cpp
@@ -122,16 +122,16 @@ void IDEA::decrypt_n(const byte in[], byte out[], size_t blocks) const
/*
* IDEA Key Schedule
*/
-void IDEA::key_schedule(const byte key[], u32bit)
+void IDEA::key_schedule(const byte key[], size_t)
{
- for(size_t j = 0; j != 8; ++j)
- EK[j] = load_be<u16bit>(key, j);
+ for(size_t i = 0; i != 8; ++i)
+ EK[i] = load_be<u16bit>(key, i);
- for(size_t j = 1, k = 8, offset = 0; k != 52; j %= 8, ++j, ++k)
+ for(size_t i = 1, j = 8, offset = 0; j != 52; i %= 8, ++i, ++j)
{
- EK[j+7+offset] = static_cast<u16bit>((EK[(j % 8) + offset] << 9) |
- (EK[((j+1) % 8) + offset] >> 7));
- offset += (j == 8) ? 8 : 0;
+ EK[i+7+offset] = static_cast<u16bit>((EK[(i % 8) + offset] << 9) |
+ (EK[((i+1) % 8) + offset] >> 7));
+ offset += (i == 8) ? 8 : 0;
}
DK[51] = mul_inv(EK[3]);
@@ -139,14 +139,14 @@ void IDEA::key_schedule(const byte key[], u32bit)
DK[49] = -EK[1];
DK[48] = mul_inv(EK[0]);
- for(size_t j = 1, k = 4, counter = 47; j != 8; ++j, k += 6)
+ for(size_t i = 1, j = 4, counter = 47; i != 8; ++i, j += 6)
{
- DK[counter--] = EK[k+1];
- DK[counter--] = EK[k];
- DK[counter--] = mul_inv(EK[k+5]);
- DK[counter--] = -EK[k+3];
- DK[counter--] = -EK[k+4];
- DK[counter--] = mul_inv(EK[k+2]);
+ DK[counter--] = EK[j+1];
+ DK[counter--] = EK[j];
+ DK[counter--] = mul_inv(EK[j+5]);
+ DK[counter--] = -EK[j+3];
+ DK[counter--] = -EK[j+4];
+ DK[counter--] = mul_inv(EK[j+2]);
}
DK[5] = EK[47];
diff --git a/src/block/idea/idea.h b/src/block/idea/idea.h
index 566d9afd4..c0af38ad6 100644
--- a/src/block/idea/idea.h
+++ b/src/block/idea/idea.h
@@ -38,7 +38,7 @@ class BOTAN_DLL IDEA : public BlockCipher
const SecureVector<u16bit>& get_DK() const { return DK; }
private:
- void key_schedule(const byte[], u32bit);
+ void key_schedule(const byte[], size_t);
SecureVector<u16bit> EK, DK;
};