urbit/j/e/ed_veri.c
2014-11-17 13:56:51 -08:00

48 lines
882 B
C

/* gen164/5/ed_veri.c
**
** This file is in the public domain.
*/
#include "all.h"
#include <ed25519.h>
/* functions
*/
static u3_noun
_cqee_veri(u3_noun s, u3_noun m, u3_noun pk)
{
c3_y sig_y[64];
c3_y pub_y[32];
c3_w ret;
c3_y* mes_y;
c3_w mesm_w = u3r_met(3, m);
memset(sig_y, 0, 64);
memset(pub_y, 0, 32);
mes_y = c3_malloc(mesm_w);
u3r_bytes(0, 64, sig_y, s);
u3r_bytes(0, 32, pub_y, pk);
u3r_bytes(0, mesm_w, mes_y, m);
ret = ed25519_verify(sig_y, mes_y, mesm_w, pub_y) == 1 ? c3y : c3n;
free(mes_y);
return ret;
}
u3_noun
u3wee_veri(u3_noun cor)
{
u3_noun a, b, c;
if ( c3n == u3r_mean(cor,
u3x_sam_2, &a, u3x_sam_6, &b,
u3x_sam_7, &c, 0) ) {
return u3m_bail(c3__fail);
} else {
return _cqee_veri(a, b, c);
}
}