File: verify.c

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ruby-ed25519 1.4.0%2Bds-1
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#include "ed25519_ref10.h"

int crypto_verify_32(const uint8_t *x,const uint8_t *y)
{
  unsigned int differentbits = 0;
#define F(i) differentbits |= x[i] ^ y[i];
  F(0)
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  return (1 & ((differentbits - 1) >> 8)) - 1;
}