| /* $OpenBSD: verify.c,v 1.3 2013/12/09 11:03:45 markus Exp $ */ |
| |
| /* |
| * Public Domain, Author: Daniel J. Bernstein |
| * Copied from nacl-20110221/crypto_verify/32/ref/verify.c |
| */ |
| |
| #include "includes.h" |
| |
| #include "crypto_api.h" |
| |
| int crypto_verify_32(const unsigned char *x,const unsigned char *y) |
| { |
| unsigned int differentbits = 0; |
| #define F(i) differentbits |= x[i] ^ y[i]; |
| F(0) |
| F(1) |
| F(2) |
| F(3) |
| F(4) |
| F(5) |
| F(6) |
| F(7) |
| F(8) |
| F(9) |
| F(10) |
| F(11) |
| F(12) |
| F(13) |
| F(14) |
| F(15) |
| F(16) |
| F(17) |
| F(18) |
| F(19) |
| F(20) |
| F(21) |
| F(22) |
| F(23) |
| F(24) |
| F(25) |
| F(26) |
| F(27) |
| F(28) |
| F(29) |
| F(30) |
| F(31) |
| return (1 & ((differentbits - 1) >> 8)) - 1; |
| } |
