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| /* $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;
| }
|
|
