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RT3061: Don't SEGFAULT when trying to export a public DSA key as a private key.

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Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(cherry picked from commit e19c93811f0db499c98d2888f1c0c0ab65e6238a)
This commit is contained in:
Adam Langley 2013-02-21 17:11:55 -05:00 committed by Emilia Kasper
parent 9f96ea4c2b
commit fe9b9a880f
1 changed files with 6 additions and 1 deletions
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7
crypto/dsa/dsa_ameth.c
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@ -307,6 +307,12 @@ static int dsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
unsigned char *dp = NULL; unsigned char *dp = NULL;
int dplen; int dplen;
if (!pkey->pkey.dsa || !pkey->pkey.dsa->priv_key)
{
DSAerr(DSA_F_DSA_PRIV_ENCODE,DSA_R_MISSING_PARAMETERS);
goto err;
}
params = ASN1_STRING_new(); params = ASN1_STRING_new();
if (!params) if (!params)
@ -701,4 +707,3 @@ const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[] =
old_dsa_priv_encode old_dsa_priv_encode
} }
}; };