/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL * project 2006. */ /* ==================================================================== * Copyright (c) 2006 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * 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 * the documentation and/or other materials provided with the * distribution. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * licensing@OpenSSL.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). */ #include #include #include #include #include #include #include #include "../fipsmodule/rsa/internal.h" #include "internal.h" static int rsa_pub_encode(CBB *out, const EVP_PKEY *key) { // See RFC 3279, section 2.3.1. CBB spki, algorithm, oid, null, key_bitstring; if (!CBB_add_asn1(out, &spki, CBS_ASN1_SEQUENCE) || !CBB_add_asn1(&spki, &algorithm, CBS_ASN1_SEQUENCE) || !CBB_add_asn1(&algorithm, &oid, CBS_ASN1_OBJECT) || !CBB_add_bytes(&oid, rsa_asn1_meth.oid, rsa_asn1_meth.oid_len) || !CBB_add_asn1(&algorithm, &null, CBS_ASN1_NULL) || !CBB_add_asn1(&spki, &key_bitstring, CBS_ASN1_BITSTRING) || !CBB_add_u8(&key_bitstring, 0 /* padding */) || !RSA_marshal_public_key(&key_bitstring, key->pkey.rsa) || !CBB_flush(out)) { OPENSSL_PUT_ERROR(EVP, EVP_R_ENCODE_ERROR); return 0; } return 1; } static int rsa_pub_decode(EVP_PKEY *out, CBS *params, CBS *key) { // See RFC 3279, section 2.3.1. // The parameters must be NULL. CBS null; if (!CBS_get_asn1(params, &null, CBS_ASN1_NULL) || CBS_len(&null) != 0 || CBS_len(params) != 0) { OPENSSL_PUT_ERROR(EVP, EVP_R_DECODE_ERROR); return 0; } RSA *rsa = RSA_parse_public_key(key); if (rsa == NULL || CBS_len(key) != 0) { OPENSSL_PUT_ERROR(EVP, EVP_R_DECODE_ERROR); RSA_free(rsa); return 0; } EVP_PKEY_assign_RSA(out, rsa); return 1; } static int rsa_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b) { return BN_cmp(b->pkey.rsa->n, a->pkey.rsa->n) == 0 && BN_cmp(b->pkey.rsa->e, a->pkey.rsa->e) == 0; } static int rsa_priv_encode(CBB *out, const EVP_PKEY *key) { CBB pkcs8, algorithm, oid, null, private_key; if (!CBB_add_asn1(out, &pkcs8, CBS_ASN1_SEQUENCE) || !CBB_add_asn1_uint64(&pkcs8, 0 /* version */) || !CBB_add_asn1(&pkcs8, &algorithm, CBS_ASN1_SEQUENCE) || !CBB_add_asn1(&algorithm, &oid, CBS_ASN1_OBJECT) || !CBB_add_bytes(&oid, rsa_asn1_meth.oid, rsa_asn1_meth.oid_len) || !CBB_add_asn1(&algorithm, &null, CBS_ASN1_NULL) || !CBB_add_asn1(&pkcs8, &private_key, CBS_ASN1_OCTETSTRING) || !RSA_marshal_private_key(&private_key, key->pkey.rsa) || !CBB_flush(out)) { OPENSSL_PUT_ERROR(EVP, EVP_R_ENCODE_ERROR); return 0; } return 1; } static int rsa_priv_decode(EVP_PKEY *out, CBS *params, CBS *key) { // Per RFC 3447, A.1, the parameters have type NULL. CBS null; if (!CBS_get_asn1(params, &null, CBS_ASN1_NULL) || CBS_len(&null) != 0 || CBS_len(params) != 0) { OPENSSL_PUT_ERROR(EVP, EVP_R_DECODE_ERROR); return 0; } RSA *rsa = RSA_parse_private_key(key); if (rsa == NULL || CBS_len(key) != 0) { OPENSSL_PUT_ERROR(EVP, EVP_R_DECODE_ERROR); RSA_free(rsa); return 0; } EVP_PKEY_assign_RSA(out, rsa); return 1; } static int rsa_opaque(const EVP_PKEY *pkey) { return RSA_is_opaque(pkey->pkey.rsa); } static int int_rsa_size(const EVP_PKEY *pkey) { return RSA_size(pkey->pkey.rsa); } static int rsa_bits(const EVP_PKEY *pkey) { return RSA_bits(pkey->pkey.rsa); } static void int_rsa_free(EVP_PKEY *pkey) { RSA_free(pkey->pkey.rsa); } const EVP_PKEY_ASN1_METHOD rsa_asn1_meth = { EVP_PKEY_RSA, // 1.2.840.113549.1.1.1 {0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01}, 9, rsa_pub_decode, rsa_pub_encode, rsa_pub_cmp, rsa_priv_decode, rsa_priv_encode, rsa_opaque, int_rsa_size, rsa_bits, 0,0,0, int_rsa_free, };