diff options
Diffstat (limited to 'crypto/ec/ec_asn1.c')
| -rw-r--r-- | crypto/ec/ec_asn1.c | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/crypto/ec/ec_asn1.c b/crypto/ec/ec_asn1.c index 96e7d83ea7..7b7c75ce84 100644 --- a/crypto/ec/ec_asn1.c +++ b/crypto/ec/ec_asn1.c @@ -137,6 +137,12 @@ struct ec_parameters_st { ASN1_INTEGER *cofactor; } /* ECPARAMETERS */ ; +typedef enum { + ECPKPARAMETERS_TYPE_NAMED = 0, + ECPKPARAMETERS_TYPE_EXPLICIT, + ECPKPARAMETERS_TYPE_IMPLICIT +} ecpk_parameters_type_t; + struct ecpk_parameters_st { int type; union { @@ -535,9 +541,10 @@ ECPKPARAMETERS *EC_GROUP_get_ecpkparameters(const EC_GROUP *group, return NULL; } } else { - if (ret->type == 0) + if (ret->type == ECPKPARAMETERS_TYPE_NAMED) ASN1_OBJECT_free(ret->value.named_curve); - else if (ret->type == 1 && ret->value.parameters) + else if (ret->type == ECPKPARAMETERS_TYPE_EXPLICIT + && ret->value.parameters != NULL) ECPARAMETERS_free(ret->value.parameters); } @@ -554,7 +561,7 @@ ECPKPARAMETERS *EC_GROUP_get_ecpkparameters(const EC_GROUP *group, ECerr(EC_F_EC_GROUP_GET_ECPKPARAMETERS, EC_R_MISSING_OID); ok = 0; } else { - ret->type = 0; + ret->type = ECPKPARAMETERS_TYPE_NAMED; ret->value.named_curve = asn1obj; } } else @@ -562,7 +569,7 @@ ECPKPARAMETERS *EC_GROUP_get_ecpkparameters(const EC_GROUP *group, ok = 0; } else { /* use the ECPARAMETERS structure */ - ret->type = 1; + ret->type = ECPKPARAMETERS_TYPE_EXPLICIT; if ((ret->value.parameters = EC_GROUP_get_ecparameters(group, NULL)) == NULL) ok = 0; @@ -901,7 +908,8 @@ EC_GROUP *EC_GROUP_new_from_ecpkparameters(const ECPKPARAMETERS *params) return NULL; } - if (params->type == 0) { /* the curve is given by an OID */ + if (params->type == ECPKPARAMETERS_TYPE_NAMED) { + /* the curve is given by an OID */ tmp = OBJ_obj2nid(params->value.named_curve); if ((ret = EC_GROUP_new_by_curve_name(tmp)) == NULL) { ECerr(EC_F_EC_GROUP_NEW_FROM_ECPKPARAMETERS, @@ -909,15 +917,16 @@ EC_GROUP *EC_GROUP_new_from_ecpkparameters(const ECPKPARAMETERS *params) return NULL; } EC_GROUP_set_asn1_flag(ret, OPENSSL_EC_NAMED_CURVE); - } else if (params->type == 1) { /* the parameters are given by a - * ECPARAMETERS structure */ + } else if (params->type == ECPKPARAMETERS_TYPE_EXPLICIT) { + /* the parameters are given by an ECPARAMETERS structure */ ret = EC_GROUP_new_from_ecparameters(params->value.parameters); if (!ret) { ECerr(EC_F_EC_GROUP_NEW_FROM_ECPKPARAMETERS, ERR_R_EC_LIB); return NULL; } EC_GROUP_set_asn1_flag(ret, OPENSSL_EC_EXPLICIT_CURVE); - } else if (params->type == 2) { /* implicitlyCA */ + } else if (params->type == ECPKPARAMETERS_TYPE_IMPLICIT) { + /* implicit parameters inherited from CA - unsupported */ return NULL; } else { ECerr(EC_F_EC_GROUP_NEW_FROM_ECPKPARAMETERS, EC_R_ASN1_ERROR); @@ -947,6 +956,9 @@ EC_GROUP *d2i_ECPKParameters(EC_GROUP **a, const unsigned char **in, long len) return NULL; } + if (params->type == ECPKPARAMETERS_TYPE_EXPLICIT) + group->decoded_from_explicit_params = 1; + if (a) { EC_GROUP_free(*a); *a = group; @@ -998,6 +1010,9 @@ EC_KEY *d2i_ECPrivateKey(EC_KEY **a, const unsigned char **in, long len) if (priv_key->parameters) { EC_GROUP_free(ret->group); ret->group = EC_GROUP_new_from_ecpkparameters(priv_key->parameters); + if (ret->group != NULL + && priv_key->parameters->type == ECPKPARAMETERS_TYPE_EXPLICIT) + ret->group->decoded_from_explicit_params = 1; } if (ret->group == NULL) { |