*
*/
-#include "cryptlib.h"
#include "ecs_locl.h"
-#include <openssl/asn1.h>
+#include <openssl/err.h>
#include <openssl/asn1t.h>
-#include <openssl/objects.h>
-static point_conversion_form_t POINT_CONVERSION_FORM = POINT_CONVERSION_COMPRESSED;
-
-/* Override the default new methods */
-static int sig_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it)
-{
- if(operation == ASN1_OP_NEW_PRE) {
- ECDSA_SIG *sig;
- sig = OPENSSL_malloc(sizeof(ECDSA_SIG));
- if (sig == NULL)
- {
- ECDSAerr(ECDSA_F_SIG_CB, ERR_R_MALLOC_FAILURE);
- return 0;
- }
- sig->r = NULL;
- sig->s = NULL;
- *pval = (ASN1_VALUE *)sig;
- return 2;
- }
- return 1;
-}
-
-ASN1_SEQUENCE_cb(ECDSA_SIG, sig_cb) = {
+ASN1_SEQUENCE(ECDSA_SIG) = {
ASN1_SIMPLE(ECDSA_SIG, r, CBIGNUM),
ASN1_SIMPLE(ECDSA_SIG, s, CBIGNUM)
-} ASN1_SEQUENCE_END_cb(ECDSA_SIG, ECDSA_SIG)
+} ASN1_SEQUENCE_END(ECDSA_SIG)
+DECLARE_ASN1_FUNCTIONS_const(ECDSA_SIG)
+DECLARE_ASN1_ENCODE_FUNCTIONS_const(ECDSA_SIG, ECDSA_SIG)
IMPLEMENT_ASN1_FUNCTIONS_const(ECDSA_SIG)
-
-ASN1_SEQUENCE(X9_62_FIELDID) = {
- ASN1_SIMPLE(X9_62_FIELDID, fieldType, ASN1_OBJECT),
- ASN1_SIMPLE(X9_62_FIELDID, parameters, ASN1_ANY)
-} ASN1_SEQUENCE_END(X9_62_FIELDID)
-
-IMPLEMENT_ASN1_FUNCTIONS_const(X9_62_FIELDID)
-
-ASN1_SEQUENCE(X9_62_CURVE) = {
- ASN1_SIMPLE(X9_62_CURVE, a, ASN1_OCTET_STRING),
- ASN1_SIMPLE(X9_62_CURVE, b, ASN1_OCTET_STRING),
- ASN1_OPT(X9_62_CURVE, seed, ASN1_BIT_STRING)
-} ASN1_SEQUENCE_END(X9_62_CURVE)
-
-IMPLEMENT_ASN1_FUNCTIONS_const(X9_62_CURVE)
-
-ASN1_SEQUENCE(X9_62_EC_PARAMETERS) = {
- ASN1_OPT(X9_62_EC_PARAMETERS, version, ASN1_INTEGER),
- ASN1_SIMPLE(X9_62_EC_PARAMETERS, fieldID, X9_62_FIELDID),
- ASN1_SIMPLE(X9_62_EC_PARAMETERS, curve, X9_62_CURVE),
- ASN1_SIMPLE(X9_62_EC_PARAMETERS, base, ASN1_OCTET_STRING),
- ASN1_SIMPLE(X9_62_EC_PARAMETERS, order, ASN1_INTEGER),
- ASN1_SIMPLE(X9_62_EC_PARAMETERS, cofactor, ASN1_INTEGER)
-} ASN1_SEQUENCE_END(X9_62_EC_PARAMETERS)
-
-IMPLEMENT_ASN1_FUNCTIONS_const(X9_62_EC_PARAMETERS)
-
-ASN1_CHOICE(EC_PARAMETERS) = {
- ASN1_SIMPLE(EC_PARAMETERS, value.named_curve, ASN1_OBJECT),
- ASN1_SIMPLE(EC_PARAMETERS, value.parameters, X9_62_EC_PARAMETERS),
- ASN1_SIMPLE(EC_PARAMETERS, value.implicitlyCA, ASN1_NULL)
-} ASN1_CHOICE_END(EC_PARAMETERS)
-
-IMPLEMENT_ASN1_FUNCTIONS_const(EC_PARAMETERS);
-
-ASN1_SEQUENCE(ECDSAPrivateKey) = {
- ASN1_SIMPLE(ECDSAPrivateKey, version, LONG),
- ASN1_SIMPLE(ECDSAPrivateKey, parameters, EC_PARAMETERS),
- ASN1_SIMPLE(ECDSAPrivateKey, pub_key, ASN1_OCTET_STRING),
- ASN1_SIMPLE(ECDSAPrivateKey, priv_key, BIGNUM)
-} ASN1_SEQUENCE_END(ECDSAPrivateKey)
-
-IMPLEMENT_ASN1_ALLOC_FUNCTIONS_fname(ECDSAPrivateKey, ECDSAPrivateKey, ECDSAPrivateKey)
-IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(ECDSAPrivateKey, ECDSAPrivateKey, ecdsaPrivateKey)
-
-ASN1_SEQUENCE(ecdsa_pub_internal) = {
- ASN1_SIMPLE(ECDSAPrivateKey, pub_key, ASN1_OCTET_STRING),
- ASN1_SIMPLE(ECDSAPrivateKey, parameters, EC_PARAMETERS),
-} ASN1_SEQUENCE_END_name(ECDSAPrivateKey, ecdsa_pub_internal)
-
-ASN1_CHOICE(ECDSAPublicKey) = {
- ASN1_SIMPLE(ECDSAPrivateKey, pub_key, ASN1_OCTET_STRING),
- ASN1_EX_COMBINE(0, 0, ecdsa_pub_internal)
-} ASN1_CHOICE_END_selector(ECDSAPrivateKey, ECDSAPublicKey, write_params)
-
-IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(ECDSAPrivateKey, ECDSAPublicKey, ecdsaPublicKey)
-
-
-X9_62_FIELDID *ECDSA_get_X9_62_FIELDID(const ECDSA *ecdsa, X9_62_FIELDID *field)
-{
- /* TODO : characteristic two */
- int ok=0, reason=ERR_R_ASN1_LIB;
- X9_62_FIELDID *ret=NULL;
- BIGNUM *tmp=NULL;
-
- if (!ecdsa || !ecdsa->group)
- OPENSSL_ECDSA_ABORT(ECDSA_R_MISSING_PARAMETERS)
- if (field == NULL)
- {
- if ((ret = X9_62_FIELDID_new()) == NULL) return NULL;
- }
- else
- {
- ret = field;
- if (ret->fieldType != NULL) ASN1_OBJECT_free(ret->fieldType);
- if (ret->parameters != NULL) ASN1_TYPE_free(ret->parameters);
- }
- if ((tmp = BN_new()) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_BN_LIB)
- if ((ret->fieldType = OBJ_nid2obj(NID_X9_62_prime_field)) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_OBJ_LIB)
- if ((ret->parameters = ASN1_TYPE_new()) == NULL) goto err;
- ret->parameters->type = V_ASN1_INTEGER;
- if (!EC_GROUP_get_curve_GFp(ecdsa->group, tmp, NULL, NULL, NULL))
- OPENSSL_ECDSA_ABORT(ERR_R_EC_LIB)
- if ((ret->parameters->value.integer = BN_to_ASN1_INTEGER(tmp, NULL)) == NULL) goto err;
- ok = 1;
-err : if (!ok)
- {
- if (ret && !field) X9_62_FIELDID_free(ret);
- ret = NULL;
- ECDSAerr(ECDSA_F_ECDSA_GET_X9_62_FIELDID, reason);
- }
- if (tmp) BN_free(tmp);
- return(ret);
-}
-
-X9_62_CURVE *ECDSA_get_X9_62_CURVE(const ECDSA *ecdsa, X9_62_CURVE *curve)
-{
- int ok=0, reason=ERR_R_BN_LIB, len1=0, len2=0;
- X9_62_CURVE *ret=NULL;
- BIGNUM *tmp1=NULL, *tmp2=NULL;
- unsigned char *buffer=NULL;
-
- if (!ecdsa || !ecdsa->group)
- OPENSSL_ECDSA_ABORT(ECDSA_R_MISSING_PARAMETERS)
- if ((tmp1 = BN_new()) == NULL || (tmp2 = BN_new()) == NULL) goto err;
- if (curve == NULL)
- {
- if ((ret = X9_62_CURVE_new()) == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_X9_62_CURVE_NEW_FAILURE)
- }
- else
- {
- ret = curve;
- if (ret->a) ASN1_OCTET_STRING_free(ret->a);
- if (ret->b) ASN1_OCTET_STRING_free(ret->b);
- if (ret->seed) ASN1_BIT_STRING_free(ret->seed);
- }
- if (!EC_GROUP_get_curve_GFp(ecdsa->group, NULL, tmp1, tmp2, NULL))
- OPENSSL_ECDSA_ABORT(ERR_R_EC_LIB)
-
- if ((len1 = BN_num_bytes(tmp1)) == 0)
- OPENSSL_ECDSA_ABORT(ECDSA_R_UNEXPECTED_PARAMETER_LENGTH)
- if ((buffer = OPENSSL_malloc(len1)) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_MALLOC_FAILURE)
- if ((len1 = BN_bn2bin(tmp1, buffer)) == 0) goto err;
- if ((ret->a = M_ASN1_OCTET_STRING_new()) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_ASN1_LIB)
- if (!M_ASN1_OCTET_STRING_set(ret->a, buffer, len1))
- OPENSSL_ECDSA_ABORT(ERR_R_ASN1_LIB)
-
- if ((len2 = BN_num_bytes(tmp2)) == 0)
- OPENSSL_ECDSA_ABORT(ECDSA_R_UNEXPECTED_PARAMETER_LENGTH)
- if (len1 < len2)
- {
- OPENSSL_free(buffer);
- if ((buffer = OPENSSL_malloc(len2)) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_MALLOC_FAILURE)
- }
- if ((len2 = BN_bn2bin(tmp2, buffer)) == 0) goto err;
- if ((ret->b = M_ASN1_OCTET_STRING_new()) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_ASN1_LIB)
- if (!M_ASN1_OCTET_STRING_set(ret->b, buffer, len2))
- OPENSSL_ECDSA_ABORT(ERR_R_ASN1_LIB)
-
- if (ecdsa->seed)
- {
- if ((ret->seed = ASN1_BIT_STRING_new()) == NULL) goto err;
- if (!ASN1_BIT_STRING_set(ret->seed, ecdsa->seed, (int)ecdsa->seed_len))
- OPENSSL_ECDSA_ABORT(ERR_R_ASN1_LIB)
- }
- else
- ret->seed = NULL;
-
- ok = 1;
-err : if (!ok)
- {
- if (ret && !curve) X9_62_CURVE_free(ret);
- ret = NULL;
- ECDSAerr(ECDSA_F_ECDSA_GET_X9_62_CURVE, reason);
- }
- if (buffer) OPENSSL_free(buffer);
- if (tmp1) BN_free(tmp1);
- if (tmp2) BN_free(tmp2);
- return(ret);
-}
-
-X9_62_EC_PARAMETERS *ECDSA_get_X9_62_EC_PARAMETERS(const ECDSA *ecdsa, X9_62_EC_PARAMETERS *param)
-{
- int ok=0, reason=ERR_R_ASN1_LIB;
- size_t len=0;
- X9_62_EC_PARAMETERS *ret=NULL;
- BIGNUM *tmp=NULL;
- unsigned char *buffer=NULL;
- EC_POINT *point=NULL;
-
- if (!ecdsa || !ecdsa->group)
- OPENSSL_ECDSA_ABORT(ECDSA_R_MISSING_PARAMETERS)
- if ((tmp = BN_new()) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_BN_LIB)
- if (param == NULL)
- {
- if ((ret = X9_62_EC_PARAMETERS_new()) == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_X9_62_EC_PARAMETERS_NEW_FAILURE)
- }
- else
- ret = param;
- if (ecdsa->version == 1)
- ret->version = NULL;
- else
- {
- if (ret->version == NULL && (ret->version = ASN1_INTEGER_new()) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_MALLOC_FAILURE)
- if (!ASN1_INTEGER_set(ret->version, (long)ecdsa->version)) goto err;
- }
- if ((ret->fieldID = ECDSA_get_X9_62_FIELDID(ecdsa, ret->fieldID)) == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_ECDSA_GET_X9_62_FIELDID_FAILURE)
- if ((ret->curve = ECDSA_get_X9_62_CURVE(ecdsa, ret->curve)) == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_ECDSA_GET_X9_62_CURVE_FAILURE)
- if ((point = EC_GROUP_get0_generator(ecdsa->group)) == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_CAN_NOT_GET_GENERATOR)
- if (!(len = EC_POINT_point2oct(ecdsa->group, point, POINT_CONVERSION_COMPRESSED, NULL, len, NULL)))
- OPENSSL_ECDSA_ABORT(ECDSA_R_UNEXPECTED_PARAMETER_LENGTH)
- if ((buffer = OPENSSL_malloc(len)) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_MALLOC_FAILURE)
- if (!EC_POINT_point2oct(ecdsa->group, point, POINT_CONVERSION_COMPRESSED, buffer, len, NULL))
- OPENSSL_ECDSA_ABORT(ERR_R_EC_LIB)
- if (ret->base == NULL && (ret->base = ASN1_OCTET_STRING_new()) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_MALLOC_FAILURE)
- if (!ASN1_OCTET_STRING_set(ret->base, buffer, len)) goto err;
- if (!EC_GROUP_get_order(ecdsa->group, tmp, NULL))
- OPENSSL_ECDSA_ABORT(ERR_R_EC_LIB)
- if ((ret->order = BN_to_ASN1_INTEGER(tmp, ret->order)) == NULL) goto err;
- if (!EC_GROUP_get_cofactor(ecdsa->group, tmp, NULL))
- OPENSSL_ECDSA_ABORT(ERR_R_EC_LIB)
- if ((ret->cofactor = BN_to_ASN1_INTEGER(tmp, ret->cofactor)) == NULL) goto err;
- ok = 1;
-
-err : if(!ok)
- {
- ECDSAerr(ECDSA_F_ECDSA_GET_X9_62_EC_PARAMETERS, reason);
- if (ret && !param) X9_62_EC_PARAMETERS_free(ret);
- ret = NULL;
- }
- if (tmp) BN_free(tmp);
- if (buffer) OPENSSL_free(buffer);
- return(ret);
-}
-
-EC_PARAMETERS *ECDSA_get_EC_PARAMETERS(const ECDSA *ecdsa, EC_PARAMETERS *params)
-{
- int ok = 1;
- int tmp = 0;
- EC_PARAMETERS *ret = params;
- if (ret == NULL)
- if ((ret = EC_PARAMETERS_new()) == NULL)
- {
- ECDSAerr(ECDSA_F_ECDSA_GET_EC_PARAMETERS, ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- if (ecdsa == NULL)
- { /* missing parameter */
- ECDSAerr(ECDSA_F_ECDSA_GET_EC_PARAMETERS, ECDSA_R_MISSING_PARAMETERS);
- EC_PARAMETERS_free(params);
- return NULL;
- }
- if (ecdsa->parameter_flags & ECDSA_FLAG_NAMED_CURVE)
- { /* use a named curve */
- tmp = EC_GROUP_get_nid(ecdsa->group);
- if (tmp)
- {
- ret->type = 0;
- if ((ret->value.named_curve = OBJ_nid2obj(tmp)) == NULL)
- ok = 0;
- }
- else
- {
- /* use the x9_64 ec_parameters structure */
- ret->type = 1;
- if ((ret->value.parameters = ECDSA_get_X9_62_EC_PARAMETERS(ecdsa, NULL)) == NULL)
- ok = 0;
- }
- }
- else if (ecdsa->parameter_flags & ECDSA_FLAG_IMPLICITLYCA)
- { /* use implicitlyCA */
- ret->type = 2;
- if ((ret->value.implicitlyCA = ASN1_NULL_new()) == NULL)
- ok = 0;
- }
- else
- { /* use the x9_64 ec_parameters structure */
- ret->type = 1;
- if ((ret->value.parameters = ECDSA_get_X9_62_EC_PARAMETERS(ecdsa, NULL)) == NULL)
- ok = 0;
- }
- if (!ok)
- {
- EC_PARAMETERS_free(ret);
- return NULL;
- }
- return ret;
-}
-
-ECDSA *ECDSA_x9_62parameters2ecdsa(const X9_62_EC_PARAMETERS *params, ECDSA *ecdsa)
-{
- int ok=0, reason=ERR_R_EC_LIB, tmp;
- ECDSA *ret=NULL;
- EC_METHOD *meth=NULL;
- BIGNUM *tmp_1=NULL, *tmp_2=NULL, *tmp_3=NULL;
- EC_POINT *point=NULL;
-
- if (!params)
- OPENSSL_ECDSA_ABORT(ECDSA_R_MISSING_PARAMETERS)
- if (ecdsa == NULL)
- {
- if ((ret = ECDSA_new()) == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_ECDSA_NEW_FAILURE)
- }
- else
- {
- if (ecdsa->group) EC_GROUP_free(ecdsa->group);
- if (ecdsa->pub_key) EC_POINT_free(ecdsa->pub_key);
- ecdsa->pub_key = NULL;
- if (ecdsa->priv_key) BN_clear_free(ecdsa->priv_key);
- ecdsa->priv_key = NULL;
- if (ecdsa->seed) OPENSSL_free(ecdsa->seed);
- ecdsa->seed = NULL;
- if (ecdsa->kinv)
- {
- BN_clear_free(ecdsa->kinv);
- ecdsa->kinv = NULL;
- }
- if (ecdsa->r)
- {
- BN_clear_free(ecdsa->r);
- ecdsa->r = NULL;
- }
- ret = ecdsa;
- }
- /* TODO : characteristic two */
- if (!params->fieldID || !params->fieldID->fieldType || !params->fieldID->parameters)
- OPENSSL_ECDSA_ABORT(ECDSA_R_NO_FIELD_SPECIFIED)
- tmp = OBJ_obj2nid(params->fieldID->fieldType);
- if (tmp == NID_X9_62_characteristic_two_field)
- {
- OPENSSL_ECDSA_ABORT(ECDSA_R_NOT_SUPPORTED)
- }
- else if (tmp == NID_X9_62_prime_field)
- {
- /* TODO : optimal method for the curve */
- (const EC_METHOD *)meth = EC_GFp_mont_method();
- if ((ret->group = EC_GROUP_new(meth)) == NULL) goto err;
- if (params->fieldID->parameters->type != V_ASN1_INTEGER)
- OPENSSL_ECDSA_ABORT(ECDSA_R_UNEXPECTED_ASN1_TYPE)
- if (!params->fieldID->parameters->value.integer)
- OPENSSL_ECDSA_ABORT(ECDSA_R_PRIME_MISSING)
- if ((tmp_1 = ASN1_INTEGER_to_BN(params->fieldID->parameters->value.integer, NULL)) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_ASN1_LIB)
- if (!params->curve)
- OPENSSL_ECDSA_ABORT(ECDSA_R_NO_CURVE_SPECIFIED)
- if (!params->curve->a || !params->curve->a->data)
- OPENSSL_ECDSA_ABORT(ECDSA_R_NO_CURVE_PARAMETER_A_SPECIFIED)
- if ((tmp_2 = BN_bin2bn(params->curve->a->data, params->curve->a->length, NULL)) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_BN_LIB)
- if (!params->curve->b || !params->curve->b->data)
- OPENSSL_ECDSA_ABORT(ECDSA_R_NO_CURVE_PARAMETER_B_SPECIFIED)
- if ((tmp_3 = BN_bin2bn(params->curve->b->data, params->curve->b->length, NULL)) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_BN_LIB)
- if (!EC_GROUP_set_curve_GFp(ret->group, tmp_1, tmp_2, tmp_3, NULL)) goto err;
- if ((point = EC_POINT_new(ret->group)) == NULL) goto err;
- }
- else OPENSSL_ECDSA_ABORT(ECDSA_R_WRONG_FIELD_IDENTIFIER)
- if (params->curve->seed != NULL && params->curve->seed->data > 0)
- {
- if (ret->seed != NULL)
- OPENSSL_free(ret->seed);
- if ((ret->seed = OPENSSL_malloc(params->curve->seed->length)) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_MALLOC_FAILURE)
- memcpy(ret->seed, params->curve->seed->data, params->curve->seed->length);
- ret->seed_len = params->curve->seed->length;
- }
- if (params->version)
- {
- if ((ret->version = (int)ASN1_INTEGER_get(params->version)) < 0)
- OPENSSL_ECDSA_ABORT(ECDSA_R_UNEXPECTED_VERSION_NUMER)
- }
- else
- ret->version = 1;
- if (params->order && params->cofactor && params->base && params->base->data)
- {
- if ((tmp_1 = ASN1_INTEGER_to_BN(params->order, tmp_1)) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_ASN1_LIB)
- if ((tmp_2 = ASN1_INTEGER_to_BN(params->cofactor, tmp_2)) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_ASN1_LIB)
- if (!EC_POINT_oct2point(ret->group, point, params->base->data,
- params->base->length, NULL)) goto err;
- if (!EC_GROUP_set_generator(ret->group, point, tmp_1, tmp_2)) goto err;
- }
- ok = 1;
-
-err: if (!ok)
- {
- ECDSAerr(ECDSA_F_ECDSA_GET, reason);
- if (ret && !ecdsa) ECDSA_free(ret);
- ret = NULL;
- }
- if (tmp_1) BN_free(tmp_1);
- if (tmp_2) BN_free(tmp_2);
- if (tmp_3) BN_free(tmp_3);
- if (point) EC_POINT_free(point);
- return(ret);
-}
-
-ECDSA *ECDSA_ecparameters2ecdsa(const EC_PARAMETERS *params, ECDSA *ecdsa)
-{
- ECDSA *ret = ecdsa;
- int tmp = 0;
- if (ret == NULL)
- if ((ret = ECDSA_new()) == NULL)
- {
- ECDSAerr(ECDSA_F_ECDSA_GET_ECDSA, ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- if (params == NULL)
- {
- ECDSAerr(ECDSA_F_ECDSA_GET_ECDSA, ECDSA_R_MISSING_PARAMETERS);
- ECDSA_free(ret);
- return NULL;
- }
- if (params->type == 0)
- {
- if (ret->group)
- EC_GROUP_free(ret->group);
- tmp = OBJ_obj2nid(params->value.named_curve);
- ret->parameter_flags |= ECDSA_FLAG_NAMED_CURVE;
- if ((ret->group = EC_GROUP_new_by_name(tmp)) == NULL)
- {
- ECDSAerr(ECDSA_F_ECDSA_GET_ECDSA, ECDSA_R_EC_GROUP_NID2CURVE_FAILURE);
- ECDSA_free(ret);
- return NULL;
- }
- }
- else if (params->type == 1)
- {
- ret = ECDSA_x9_62parameters2ecdsa(params->value.parameters, ret);
- }
- else if (params->type == 2)
- {
- if (ret->group)
- EC_GROUP_free(ret->group);
- ret->group = NULL;
- ret->parameter_flags |= ECDSA_FLAG_IMPLICITLYCA;
- }
- else
- {
- ECDSAerr(ECDSA_F_ECDSA_GET_ECDSA, ECDSA_R_UNKNOWN_PARAMETERS_TYPE);
- ECDSA_free(ret);
- ret = NULL;
- }
- return ret;
-}
-
-ECDSA *d2i_ECDSAParameters(ECDSA **a, const unsigned char **in, long len)
-{
- ECDSA *ecdsa = (a && *a)? *a : NULL;
- EC_PARAMETERS *params = NULL;
-
- if ((params = d2i_EC_PARAMETERS(NULL, in, len)) == NULL)
- {
- ECDSAerr(ECDSA_F_D2I_ECDSAPARAMETERS, ECDSA_R_D2I_EC_PARAMETERS_FAILURE);
- EC_PARAMETERS_free(params);
- return NULL;
- }
- if ((ecdsa = ECDSA_ecparameters2ecdsa(params, ecdsa)) == NULL)
- {
- ECDSAerr(ECDSA_F_D2I_ECDSAPARAMETERS, ECDSA_R_ECPARAMETERS2ECDSA_FAILURE);
- return NULL;
- }
- EC_PARAMETERS_free(params);
- return(ecdsa);
-}
-
-int i2d_ECDSAParameters(ECDSA *a, unsigned char **out)
-{
- int ret=0;
- EC_PARAMETERS *tmp = ECDSA_get_EC_PARAMETERS(a, NULL);
- if (tmp == NULL)
- {
- ECDSAerr(ECDSA_F_I2D_ECDSAPARAMETERS, ECDSA_R_ECDSA_GET_EC_PARAMETERS_FAILURE);
- return 0;
- }
- if ((ret = i2d_EC_PARAMETERS(tmp, out)) == 0)
- {
- ECDSAerr(ECDSA_F_I2D_ECDSAPARAMETERS, ECDSA_R_ECDSA_R_D2I_EC_PARAMETERS_FAILURE);
- EC_PARAMETERS_free(tmp);
- return 0;
- }
- EC_PARAMETERS_free(tmp);
- return(ret);
-}
-
-ECDSA *d2i_ECDSAPrivateKey(ECDSA **a, const unsigned char **in, long len)
-{
- int reason=ERR_R_BN_LIB, ok=0;
- ECDSA *ret=NULL;
- ECDSAPrivateKey *priv_key=NULL;
-
- if ((priv_key = ECDSAPrivateKey_new()) == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_ECDSAPRIVATEKEY_NEW_FAILURE)
- if ((priv_key = d2i_ecdsaPrivateKey(&priv_key, in, len)) == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_D2I_ECDSA_PRIVATEKEY_FAILURE)
- if ((ret = ECDSA_ecparameters2ecdsa(priv_key->parameters, NULL)) == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_ECDSA_GET_FAILURE)
- ret->version = priv_key->version;
- ret->write_params = priv_key->write_params;
- if (priv_key->priv_key)
- {
- if ((ret->priv_key = BN_dup(priv_key->priv_key)) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_BN_LIB)
- }
- else
- OPENSSL_ECDSA_ABORT(ECDSA_R_D2I_ECDSAPRIVATEKEY_MISSING_PRIVATE_KEY)
- if ((ret->pub_key = EC_POINT_new(ret->group)) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_EC_LIB)
- if (!EC_POINT_oct2point(ret->group, ret->pub_key, priv_key->pub_key->data, priv_key->pub_key->length, NULL))
- OPENSSL_ECDSA_ABORT(ERR_R_EC_LIB)
- ok = 1;
-err : if (!ok)
- {
- if (ret) ECDSA_free(ret);
- ret = NULL;
- ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, reason);
- }
- if (priv_key) ECDSAPrivateKey_free(priv_key);
- return(ret);
-}
-
-int i2d_ECDSAPrivateKey(ECDSA *a, unsigned char **out)
-{
- int ret=0, ok=0, reason=ERR_R_EC_LIB;
- unsigned char *buffer=NULL;
- size_t buf_len=0;
- ECDSAPrivateKey *priv_key=NULL;
-
- if (a == NULL || a->group == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_MISSING_PARAMETERS)
- if ((priv_key = ECDSAPrivateKey_new()) == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_ECDSAPRIVATEKEY_NEW_FAILURE)
- if ((priv_key->parameters = ECDSA_get_EC_PARAMETERS(a, priv_key->parameters)) == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_ECDSA_GET_X9_62_EC_PARAMETERS_FAILURE)
- priv_key->version = a->version;
- if (BN_copy(priv_key->priv_key, a->priv_key) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_BN_LIB)
- buf_len = EC_POINT_point2oct(a->group, a->pub_key, POINT_CONVERSION_COMPRESSED, NULL, 0, NULL);
- if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_MALLOC_FAILURE)
- if (!EC_POINT_point2oct(a->group, a->pub_key, POINT_CONVERSION_COMPRESSED,
- buffer, buf_len, NULL)) goto err;
- if (!M_ASN1_OCTET_STRING_set(priv_key->pub_key, buffer, buf_len))
- OPENSSL_ECDSA_ABORT(ERR_R_ASN1_LIB)
- if ((ret = i2d_ecdsaPrivateKey(priv_key, out)) == 0)
- OPENSSL_ECDSA_ABORT(ECDSA_R_I2D_ECDSA_PRIVATEKEY)
- ok=1;
-
-err: if (!ok)
- ECDSAerr(ECDSA_F_I2D_ECDSAPRIVATEKEY, reason);
- if (buffer) OPENSSL_free(buffer);
- if (priv_key) ECDSAPrivateKey_free(priv_key);
- return(ok?ret:0);
-}
-
-
-ECDSA *d2i_ECDSAPublicKey(ECDSA **a, const unsigned char **in, long len)
-{
- int reason=ERR_R_BN_LIB, ok=0, ecdsa_new=1;
- ECDSA *ret=NULL;
- ECDSAPrivateKey *priv_key=NULL;
-
- if (a && *a)
- {
- ecdsa_new = 0;
- ret = *a;
- }
- else if ((ret = ECDSA_new()) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_MALLOC_FAILURE);
- if ((priv_key = ECDSAPrivateKey_new()) == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_ECDSAPRIVATEKEY_NEW_FAILURE)
- if ((priv_key = d2i_ecdsaPublicKey(&priv_key, in, len)) == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_D2I_ECDSA_PRIVATEKEY_FAILURE)
- if (priv_key->write_params == 0)
- {
- if (ecdsa_new || !ret->group)
- OPENSSL_ECDSA_ABORT(ECDSA_R_MISSING_PARAMETERS)
- if (ret->pub_key == NULL && (ret->pub_key = EC_POINT_new(ret->group)) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_MALLOC_FAILURE)
- if (!EC_POINT_oct2point(ret->group, ret->pub_key, priv_key->pub_key->data,
- priv_key->pub_key->length, NULL))
- OPENSSL_ECDSA_ABORT(ERR_R_EC_LIB)
- }
- else if (priv_key->write_params == 1)
- {
- if ((ret = ECDSA_ecparameters2ecdsa(priv_key->parameters, ret)) == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_ECDSA_GET_FAILURE)
- if (ret->pub_key == NULL && (ret->pub_key = EC_POINT_new(ret->group)) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_EC_LIB)
- if (!EC_POINT_oct2point(ret->group, ret->pub_key, priv_key->pub_key->data,
- priv_key->pub_key->length, NULL))
- OPENSSL_ECDSA_ABORT(ERR_R_EC_LIB)
- }
- else OPENSSL_ECDSA_ABORT(ECDSA_R_UNEXPECTED_PARAMETER)
- ret->write_params = 1;
- ok = 1;
-err : if (!ok)
- {
- if (ret && ecdsa_new) ECDSA_free(ret);
- ret = NULL;
- ECDSAerr(ECDSA_F_D2I_ECDSAPRIVATEKEY, reason);
- }
- if (priv_key) ECDSAPrivateKey_free(priv_key);
- return(ret);
-}
-
-int i2d_ECDSAPublicKey(ECDSA *a, unsigned char **out)
-{
- int ret=0, reason=ERR_R_EC_LIB, ok=0;
- unsigned char *buffer=NULL;
- size_t buf_len=0;
- ECDSAPrivateKey *priv_key=NULL;
-
- if (a == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_MISSING_PARAMETERS)
- if ((priv_key = ECDSAPrivateKey_new()) == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_ECDSAPRIVATEKEY_NEW_FAILURE)
- if ((priv_key->parameters = ECDSA_get_EC_PARAMETERS(a, priv_key->parameters)) == NULL)
- OPENSSL_ECDSA_ABORT(ECDSA_R_ECDSA_GET_X9_62_EC_PARAMETERS_FAILURE)
- priv_key->version = a->version;
- priv_key->write_params = a->write_params;
- buf_len = EC_POINT_point2oct(a->group, a->pub_key, POINT_CONVERSION_FORM, NULL, 0, NULL);
- if (!buf_len || (buffer = OPENSSL_malloc(buf_len)) == NULL)
- OPENSSL_ECDSA_ABORT(ERR_R_MALLOC_FAILURE)
- if (!EC_POINT_point2oct(a->group, a->pub_key, POINT_CONVERSION_FORM,
- buffer, buf_len, NULL)) goto err;
- if (!M_ASN1_OCTET_STRING_set(priv_key->pub_key, buffer, buf_len))
- OPENSSL_ECDSA_ABORT(ERR_R_ASN1_LIB)
- if ((ret = i2d_ecdsaPublicKey(priv_key, out)) == 0)
- OPENSSL_ECDSA_ABORT(ECDSA_R_I2D_ECDSA_PUBLICKEY)
- ok = 1;
-
-err: if (!ok)
- ECDSAerr(ECDSA_F_I2D_ECDSAPUBLICKEY, reason);
- if (buffer) OPENSSL_free(buffer);
- if (priv_key) ECDSAPrivateKey_free(priv_key);
- return(ok?ret:0);
-}
projects / openssl.git / blobdiff