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Jeffrey Walton 2019-01-27 06:46:45 -05:00
parent 33e401116c
commit d852c18fe8
No known key found for this signature in database
GPG Key ID: B36AB348921B1838
2 changed files with 10 additions and 3 deletions
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3
poly1305.cpp
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@ -27,11 +27,10 @@
////////////////////////////// Common Poly1305 //////////////////////////////
#define CONSTANT_TIME_CARRY(a,b) ((a ^ ((a ^ b) | ((a - b) ^ b))) >> (sizeof(a) * 8 - 1))
ANONYMOUS_NAMESPACE_BEGIN
using namespace CryptoPP;
#define CONSTANT_TIME_CARRY(a,b) ((a ^ ((a ^ b) | ((a - b) ^ b))) >> (sizeof(a) * 8 - 1))
void Poly1305_HashBlocks(word32 h[5], word32 r[4], const byte *input, size_t length, word32 padbit)
{

10
poly1305.h
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@ -1,5 +1,13 @@
// poly1305.h - written and placed in the public domain by Jeffrey Walton and Jean-Pierre Munch
// Based on Andy Polyakov's Base-2^26 scalar multiplication implementation for OpenSSL.
// Based on Andy Polyakov's Base-2^26 scalar multiplication implementation.
// For more information, see https://www.openssl.org/~appro/cryptogams/.
// The library added Bernstein's Poly1305 classses at Crypto++ 5.6.4. The IETF
// uses a slightly different implementation than Bernstein, and the IETF
// classes were added at Crypto++ 8.1. We wanted to maintain ABI compatibility
// at the 8.1 release so the original Poly1305 classes were not disturbed.
// Instead new classes were added for IETF Poly1305. The back-end implementation
// shares code as expected, however.
/// \file poly1305.h
/// \brief Classes for Poly1305 message authentication code