diff options
Diffstat (limited to 'src/stream/arc4/arc4.cpp')
| -rw-r--r-- | src/stream/arc4/arc4.cpp | 46 |
1 files changed, 24 insertions, 22 deletions
diff --git a/src/stream/arc4/arc4.cpp b/src/stream/arc4/arc4.cpp index f422582cc..0f78f7362 100644 --- a/src/stream/arc4/arc4.cpp +++ b/src/stream/arc4/arc4.cpp @@ -1,7 +1,9 @@ -/************************************************* -* ARC4 Source File * -* (C) 1999-2007 Jack Lloyd * -*************************************************/ +/* +* ARC4 +* (C) 1999-2007 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ #include <botan/arc4.h> #include <botan/xor_buf.h> @@ -9,9 +11,9 @@ namespace Botan { -/************************************************* -* Combine cipher stream with message * -*************************************************/ +/* +* Combine cipher stream with message +*/ void ARC4::cipher(const byte in[], byte out[], u32bit length) { while(length >= buffer.size() - position) @@ -26,9 +28,9 @@ void ARC4::cipher(const byte in[], byte out[], u32bit length) position += length; } -/************************************************* -* Generate cipher stream * -*************************************************/ +/* +* Generate cipher stream +*/ void ARC4::generate() { u32bit SX, SY; @@ -54,9 +56,9 @@ void ARC4::generate() position = 0; } -/************************************************* -* ARC4 Key Schedule * -*************************************************/ +/* +* ARC4 Key Schedule +*/ void ARC4::key_schedule(const byte key[], u32bit length) { clear(); @@ -72,9 +74,9 @@ void ARC4::key_schedule(const byte key[], u32bit length) position += (SKIP % buffer.size()); } -/************************************************* -* Return the name of this type * -*************************************************/ +/* +* Return the name of this type +*/ std::string ARC4::name() const { if(SKIP == 0) return "ARC4"; @@ -82,9 +84,9 @@ std::string ARC4::name() const else return "RC4_skip(" + to_string(SKIP) + ")"; } -/************************************************* -* Clear memory of sensitive data * -*************************************************/ +/* +* Clear memory of sensitive data +*/ void ARC4::clear() throw() { state.clear(); @@ -92,9 +94,9 @@ void ARC4::clear() throw() position = X = Y = 0; } -/************************************************* -* ARC4 Constructor * -*************************************************/ +/* +* ARC4 Constructor +*/ ARC4::ARC4(u32bit s) : StreamCipher(1, 256), SKIP(s) { clear(); |