*/
#include "includes.h"
-RCSID("$OpenBSD: dh.c,v 1.23 2002/11/21 22:22:50 markus Exp $");
+RCSID("$OpenBSD: dh.c,v 1.26 2003/12/16 15:51:54 markus Exp $");
#include "xmalloc.h"
if ((f = fopen(_PATH_DH_MODULI, "r")) == NULL &&
(f = fopen(_PATH_DH_PRIMES, "r")) == NULL) {
- log("WARNING: %s does not exist, using old modulus", _PATH_DH_MODULI);
+ logit("WARNING: %s does not exist, using old modulus", _PATH_DH_MODULI);
return (dh_new_group1());
}
if (bestcount == 0) {
fclose(f);
- log("WARNING: no suitable primes in %s", _PATH_DH_PRIMES);
+ logit("WARNING: no suitable primes in %s", _PATH_DH_PRIMES);
return (NULL);
}
int bits_set = 0;
if (dh_pub->neg) {
- log("invalid public DH value: negativ");
+ logit("invalid public DH value: negativ");
return 0;
}
for (i = 0; i <= n; i++)
/* if g==2 and bits_set==1 then computing log_g(dh_pub) is trivial */
if (bits_set > 1 && (BN_cmp(dh_pub, dh->p) == -1))
return 1;
- log("invalid public DH value (%d/%d)", bits_set, BN_num_bits(dh->p));
+ logit("invalid public DH value (%d/%d)", bits_set, BN_num_bits(dh->p));
return 0;
}
if (dh->p == NULL)
fatal("dh_gen_key: dh->p == NULL");
- if (2*need >= BN_num_bits(dh->p))
+ if (need > INT_MAX / 2 || 2 * need >= BN_num_bits(dh->p))
fatal("dh_gen_key: group too small: %d (2*need %d)",
BN_num_bits(dh->p), 2*need);
do {
dh_estimate(int bits)
{
- if (bits < 64)
- return (512); /* O(2**63) */
- if (bits < 128)
+ if (bits <= 128)
return (1024); /* O(2**86) */
- if (bits < 192)
+ if (bits <= 192)
return (2048); /* O(2**116) */
return (4096); /* O(2**156) */
}