diff options
Diffstat (limited to '')
-rw-r--r-- | verify.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/verify.c b/verify.c new file mode 100644 index 0000000..1671a41 --- /dev/null +++ b/verify.c @@ -0,0 +1,49 @@ +/* $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; +} |