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Red Hat Bugzilla – Attachment 875982 Details for
Bug 1077799
ldns could produce bad DSA sign
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[patch]
patch
ldns-1.6.16-dsa-key-failures.patch (text/plain), 912 bytes, created by
Tomáš Hozza
on 2014-03-18 15:18:35 UTC
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Description:
patch
Filename:
MIME Type:
Creator:
Tomáš Hozza
Created:
2014-03-18 15:18:35 UTC
Size:
912 bytes
patch
obsolete
>diff --git a/keys.c b/keys.c >index de7c946..d8fe9c1 100644 >--- a/keys.c >+++ b/keys.c >@@ -1314,7 +1314,6 @@ ldns_key_dsa2bin(unsigned char *data, DSA *k, uint16_t *size) > /* See RFC2536 */ > *size = (uint16_t)BN_num_bytes(k->p); > T = (*size - 64) / 8; >- memcpy(data, &T, 1); > > if (T > 8) { > fprintf(stderr, "DSA key with T > 8 (ie. > 1024 bits)"); >@@ -1326,9 +1325,9 @@ ldns_key_dsa2bin(unsigned char *data, DSA *k, uint16_t *size) > data[0] = (unsigned char)T; > BN_bn2bin(k->q, data + 1 ); /* 20 octects */ > BN_bn2bin(k->p, data + 21 ); /* offset octects */ >- BN_bn2bin(k->g, data + 21 + *size); /* offset octets */ >- BN_bn2bin(k->pub_key, data + 21 + *size + *size); /* offset octets */ >- *size = 21 + (*size * 3); >+ BN_bn2bin(k->g, data + 21 + *size * 2 - BN_num_bytes(k->g)); >+ BN_bn2bin(k->pub_key,data + 21 + *size * 3 - BN_num_bytes(k->pub_key)); >+ *size = 21 + *size * 3; > return true; > } >
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