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Return error for unsupported modes.

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PR#3974
PR#3975

Reviewed-by: Matt Caswell <matt@openssl.org>

Conflicts:
	crypto/evp/evp_lib.c
This commit is contained in:
Dr. Stephen Henson 2015-08-01 15:38:11 +01:00
parent 2d17250368
commit 50e56c1d8c
1 changed files with 27 additions and 6 deletions
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33
crypto/evp/evp_lib.c
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@ -67,9 +67,19 @@ int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
if (c->cipher->set_asn1_parameters != NULL) if (c->cipher->set_asn1_parameters != NULL)
ret = c->cipher->set_asn1_parameters(c, type); ret = c->cipher->set_asn1_parameters(c, type);
else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1) else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1) {
ret = EVP_CIPHER_set_asn1_iv(c, type); switch (EVP_CIPHER_CTX_mode(c)) {
else
case EVP_CIPH_GCM_MODE:
case EVP_CIPH_CCM_MODE:
case EVP_CIPH_XTS_MODE:
ret = -1;
break;
default:
ret = EVP_CIPHER_set_asn1_iv(c, type);
}
} else
ret = -1; ret = -1;
return (ret); return (ret);
} }
@ -80,9 +90,20 @@ int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
if (c->cipher->get_asn1_parameters != NULL) if (c->cipher->get_asn1_parameters != NULL)
ret = c->cipher->get_asn1_parameters(c, type); ret = c->cipher->get_asn1_parameters(c, type);
else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1) else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1) {
ret = EVP_CIPHER_get_asn1_iv(c, type); switch (EVP_CIPHER_CTX_mode(c)) {
else
case EVP_CIPH_GCM_MODE:
case EVP_CIPH_CCM_MODE:
case EVP_CIPH_XTS_MODE:
ret = -1;
break;
default:
ret = EVP_CIPHER_get_asn1_iv(c, type);
break;
}
} else
ret = -1; ret = -1;
return (ret); return (ret);
} }