version 1.22, 2002/06/27 08:49:44 |
version 1.22.2.2, 2003/09/16 21:20:25 |
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if ((f = fopen(_PATH_DH_MODULI, "r")) == NULL && |
if ((f = fopen(_PATH_DH_MODULI, "r")) == NULL && |
(f = fopen(_PATH_DH_PRIMES, "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()); |
return (dh_new_group1()); |
} |
} |
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if (bestcount == 0) { |
if (bestcount == 0) { |
fclose(f); |
fclose(f); |
log("WARNING: no suitable primes in %s", _PATH_DH_PRIMES); |
logit("WARNING: no suitable primes in %s", _PATH_DH_PRIMES); |
return (NULL); |
return (NULL); |
} |
} |
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int bits_set = 0; |
int bits_set = 0; |
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if (dh_pub->neg) { |
if (dh_pub->neg) { |
log("invalid public DH value: negativ"); |
logit("invalid public DH value: negativ"); |
return 0; |
return 0; |
} |
} |
for (i = 0; i <= n; i++) |
for (i = 0; i <= n; i++) |
if (BN_is_bit_set(dh_pub, i)) |
if (BN_is_bit_set(dh_pub, i)) |
bits_set++; |
bits_set++; |
debug("bits set: %d/%d", bits_set, BN_num_bits(dh->p)); |
debug2("bits set: %d/%d", bits_set, BN_num_bits(dh->p)); |
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/* if g==2 and bits_set==1 then computing log_g(dh_pub) is trivial */ |
/* 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)) |
if (bits_set > 1 && (BN_cmp(dh_pub, dh->p) == -1)) |
return 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; |
return 0; |
} |
} |
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for (i = 0; i <= BN_num_bits(dh->priv_key); i++) |
for (i = 0; i <= BN_num_bits(dh->priv_key); i++) |
if (BN_is_bit_set(dh->priv_key, i)) |
if (BN_is_bit_set(dh->priv_key, i)) |
bits_set++; |
bits_set++; |
debug("dh_gen_key: priv key bits set: %d/%d", |
debug2("dh_gen_key: priv key bits set: %d/%d", |
bits_set, BN_num_bits(dh->priv_key)); |
bits_set, BN_num_bits(dh->priv_key)); |
if (tries++ > 10) |
if (tries++ > 10) |
fatal("dh_gen_key: too many bad keys: giving up"); |
fatal("dh_gen_key: too many bad keys: giving up"); |