X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Fecdsa%2Fecs_asn1.c;h=508b079f254739e909e51832828a0edcfe1d9d0a;hb=8372efbd2fd093f4ea9178f95b918b08fd50771e;hp=3a5baf013b1700142ef254b872d1adc275681f46;hpb=4d94ae00d5614d64d4dd065860c4b00161a81f82;p=oweals%2Fopenssl.git diff --git a/crypto/ecdsa/ecs_asn1.c b/crypto/ecdsa/ecs_asn1.c index 3a5baf013b..508b079f25 100644 --- a/crypto/ecdsa/ecs_asn1.c +++ b/crypto/ecdsa/ecs_asn1.c @@ -7,7 +7,7 @@ * are met: * * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. + * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in @@ -53,671 +53,15 @@ * */ -#include "cryptlib.h" #include "ecs_locl.h" -#include +#include #include -#include -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_SIMPLE(ECDSA_SIG, r, CBIGNUM), - ASN1_SIMPLE(ECDSA_SIG, s, CBIGNUM) -} ASN1_SEQUENCE_END_cb(ECDSA_SIG, ECDSA_SIG) +ASN1_SEQUENCE(ECDSA_SIG) = { + ASN1_SIMPLE(ECDSA_SIG, r, CBIGNUM), + ASN1_SIMPLE(ECDSA_SIG, s, CBIGNUM) +} 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_get_group_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); -}