diff options
Diffstat (limited to 'src/stream/salsa20/salsa20.cpp')
| -rw-r--r-- | src/stream/salsa20/salsa20.cpp | 52 |
1 files changed, 27 insertions, 25 deletions
diff --git a/src/stream/salsa20/salsa20.cpp b/src/stream/salsa20/salsa20.cpp index e6a190fc3..75137798c 100644 --- a/src/stream/salsa20/salsa20.cpp +++ b/src/stream/salsa20/salsa20.cpp @@ -1,7 +1,9 @@ -/************************************************* -* Salsa20 Source File * -* (C) 1999-2008 Jack Lloyd * -*************************************************/ +/* +* Salsa20 +* (C) 1999-2008 Jack Lloyd +* +* Distributed under the terms of the Botan license +*/ #include <botan/salsa20.h> #include <botan/mem_ops.h> @@ -13,9 +15,9 @@ namespace Botan { namespace { -/************************************************* -* Generate Salsa20 cipher stream * -*************************************************/ +/* +* Generate Salsa20 cipher stream +*/ void salsa20(byte output[64], const u32bit input[16]) { u32bit x00 = input[0]; @@ -92,9 +94,9 @@ void salsa20(byte output[64], const u32bit input[16]) } -/************************************************* -* Combine cipher stream with message * -*************************************************/ +/* +* Combine cipher stream with message +*/ void Salsa20::cipher(const byte in[], byte out[], u32bit length) { while(length >= buffer.size() - position) @@ -117,9 +119,9 @@ void Salsa20::cipher(const byte in[], byte out[], u32bit length) position += length; } -/************************************************* -* Salsa20 Key Schedule * -*************************************************/ +/* +* Salsa20 Key Schedule +*/ void Salsa20::key_schedule(const byte key[], u32bit length) { static const u32bit TAU[] = @@ -165,9 +167,9 @@ void Salsa20::key_schedule(const byte key[], u32bit length) resync(ZERO, sizeof(ZERO)); } -/************************************************* -* Return the name of this type * -*************************************************/ +/* +* Return the name of this type +*/ void Salsa20::resync(const byte iv[], u32bit length) { if(length != IV_LENGTH) @@ -186,17 +188,17 @@ void Salsa20::resync(const byte iv[], u32bit length) position = 0; } -/************************************************* -* Return the name of this type * -*************************************************/ +/* +* Return the name of this type +*/ std::string Salsa20::name() const { return "Salsa20"; } -/************************************************* -* Clear memory of sensitive data * -*************************************************/ +/* +* Clear memory of sensitive data +*/ void Salsa20::clear() throw() { state.clear(); @@ -204,9 +206,9 @@ void Salsa20::clear() throw() position = 0; } -/************************************************* -* Salsa20 Constructor * -*************************************************/ +/* +* Salsa20 Constructor +*/ Salsa20::Salsa20() : StreamCipher(16, 32, 16, 8) { clear(); |