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8a56dc2b6b
[blocks.c ed25519.c fe25519.c fe25519.h ge25519.c ge25519.h]
[ge25519_base.data hash.c sc25519.c sc25519.h verify.c]
Add Authors for the public domain ed25519/nacl code.
see also http://nacl.cr.yp.to/features.html
All of the NaCl software is in the public domain.
and http://ed25519.cr.yp.to/software.html
The Ed25519 software is in the public domain.
48 lines
645 B
C
48 lines
645 B
C
/* $OpenBSD: verify.c,v 1.3 2013/12/09 11:03:45 markus Exp $ */
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/*
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* Public Domain, Author: Daniel J. Bernstein
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* Copied from nacl-20110221/crypto_verify/32/ref/verify.c
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*/
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#include "crypto_api.h"
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int crypto_verify_32(const unsigned char *x,const unsigned char *y)
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{
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unsigned int differentbits = 0;
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#define F(i) differentbits |= x[i] ^ y[i];
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F(0)
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F(1)
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F(2)
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F(3)
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F(4)
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F(5)
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F(6)
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F(7)
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F(8)
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F(9)
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F(10)
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F(11)
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F(12)
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F(13)
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F(14)
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F(15)
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F(16)
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F(17)
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F(18)
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F(19)
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F(20)
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F(21)
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F(22)
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F(23)
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F(24)
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F(25)
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F(26)
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F(27)
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F(28)
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F(29)
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F(30)
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F(31)
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return (1 & ((differentbits - 1) >> 8)) - 1;
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}
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