diff options
Diffstat (limited to 'src/block/idea/idea.cpp')
| -rw-r--r-- | src/block/idea/idea.cpp | 40 |
1 files changed, 21 insertions, 19 deletions
diff --git a/src/block/idea/idea.cpp b/src/block/idea/idea.cpp index 88dc04a3d..5bbe47087 100644 --- a/src/block/idea/idea.cpp +++ b/src/block/idea/idea.cpp @@ -1,7 +1,9 @@ -/************************************************* -* IDEA Source File * -* (C) 1999-2007 Jack Lloyd * -*************************************************/ +/* +* IDEA +* (C) 1999-2007 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ #include <botan/idea.h> #include <botan/loadstor.h> @@ -10,9 +12,9 @@ namespace Botan { namespace { -/************************************************* -* Multiplication modulo 65537 * -*************************************************/ +/* +* Multiplication modulo 65537 +*/ inline u16bit mul(u16bit x, u16bit y) { if(x && y) @@ -26,9 +28,9 @@ inline u16bit mul(u16bit x, u16bit y) return static_cast<u16bit>(1 - x - y); } -/************************************************* -* Find multiplicative inverses modulo 65537 * -*************************************************/ +/* +* Find multiplicative inverses modulo 65537 +*/ u16bit mul_inv(u16bit x) { if(x <= 1) @@ -55,9 +57,9 @@ u16bit mul_inv(u16bit x) } -/************************************************* -* IDEA Encryption * -*************************************************/ +/* +* IDEA Encryption +*/ void IDEA::enc(const byte in[], byte out[]) const { u16bit X1 = load_be<u16bit>(in, 0); @@ -93,9 +95,9 @@ void IDEA::enc(const byte in[], byte out[]) const store_be(out, X1, X3, X2, X4); } -/************************************************* -* IDEA Decryption * -*************************************************/ +/* +* IDEA Decryption +*/ void IDEA::dec(const byte in[], byte out[]) const { u16bit X1 = load_be<u16bit>(in, 0); @@ -131,9 +133,9 @@ void IDEA::dec(const byte in[], byte out[]) const store_be(out, X1, X3, X2, X4); } -/************************************************* -* IDEA Key Schedule * -*************************************************/ +/* +* IDEA Key Schedule +*/ void IDEA::key_schedule(const byte key[], u32bit) { for(u32bit j = 0; j != 8; ++j) |