(cp)[3] = (unsigned char)(value); }
#if 0
-/*
- * Condition this section in for debugging of DSS.
- */
-static void diagbn(char *prefix, Bignum md) {
- int i, nibbles, morenibbles;
- static const char hex[] = "0123456789ABCDEF";
-
- printf("%s0x", prefix ? prefix : "");
-
- nibbles = (3 + ssh1_bignum_bitcount(md))/4; if (nibbles<1) nibbles=1;
- morenibbles = 4*md[0] - nibbles;
- for (i=0; i<morenibbles; i++) putchar('-');
- for (i=nibbles; i-- ;)
- putchar(hex[(bignum_byte(md, i/2) >> (4*(i%2))) & 0xF]);
-
- if (prefix) putchar('\n');
-}
#define DEBUG_DSS
#else
#define diagbn(x,y)
}
static Bignum getmp(char **data, int *datalen) {
char *p;
- int i, j, length;
+ int length;
Bignum b;
getstring(data, datalen, &p, &length);
return NULL;
if (p[0] & 0x80)
return NULL; /* negative mp */
- b = newbn((length+1)/2);
- for (i = 0; i < length; i++) {
- j = length - 1 - i;
- if (j & 1)
- b[j/2+1] |= ((unsigned char)p[i]) << 8;
- else
- b[j/2+1] |= ((unsigned char)p[i]);
- }
- while (b[0] > 1 && b[b[0]] == 0) b[0]--;
+ b = bignum_from_bytes(p, length);
return b;
}
static Bignum get160(char **data, int *datalen) {
- char *p;
- int i, j, length;
Bignum b;
- p = *data;
+ b = bignum_from_bytes(*data, 20);
*data += 20; *datalen -= 20;
- length = 20;
- while (length > 0 && !p[0])
- p++, length--;
- b = newbn((length+1)/2);
- for (i = 0; i < length; i++) {
- j = length - 1 - i;
- if (j & 1)
- b[j/2+1] |= ((unsigned char)p[i]) << 8;
- else
- b[j/2+1] |= ((unsigned char)p[i]);
- }
return b;
}
if (!dss->p)
return NULL;
len = 8 + 4 + 1; /* 4 x "0x", punctuation, \0 */
- len += 4 * (dss->p[0] + dss->q[0] + dss->g[0] + dss->y[0]); /* digits */
+ len += 4 * (ssh1_bignum_bitcount(dss->p)+15)/16;
+ len += 4 * (ssh1_bignum_bitcount(dss->q)+15)/16;
+ len += 4 * (ssh1_bignum_bitcount(dss->g)+15)/16;
+ len += 4 * (ssh1_bignum_bitcount(dss->y)+15)/16;
p = smalloc(len);
if (!p) return NULL;
int i;
printf("sig:");
for (i=0;i<siglen;i++)
- printf(" %02xf", (unsigned char)(sig[i]));
+ printf(" %02x", (unsigned char)(sig[i]));
printf("\n");
}
#endif