/* * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the Apache License 2.0 (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy * in the file LICENSE in the source distribution or at * https://www.openssl.org/source/license.html */ /* * DSA low level APIs are deprecated for public use, but still ok for * internal use. */ #include "internal/deprecated.h" #include <stdio.h> #include "internal/cryptlib.h" #include <openssl/bn.h> #include <openssl/evp.h> #include <openssl/objects.h> #include <openssl/asn1.h> #include <openssl/rsa.h> #include <openssl/dsa.h> #include <openssl/ec.h> #include "crypto/evp.h" EVP_PKEY *d2i_PublicKey(int type, EVP_PKEY **a, const unsigned char **pp, long length) { EVP_PKEY *ret; EVP_PKEY *copy = NULL; if ((a == NULL) || (*a == NULL)) { if ((ret = EVP_PKEY_new()) == NULL) { ERR_raise(ERR_LIB_ASN1, ERR_R_EVP_LIB); return NULL; } } else { ret = *a; #ifndef OPENSSL_NO_EC if (evp_pkey_is_provided(ret) && EVP_PKEY_get_base_id(ret) == EVP_PKEY_EC) { if (!evp_pkey_copy_downgraded(©, ret)) goto err; } #endif } if ((type != EVP_PKEY_get_id(ret) || copy != NULL) && !EVP_PKEY_set_type(ret, type)) { ERR_raise(ERR_LIB_ASN1, ERR_R_EVP_LIB); goto err; } switch (EVP_PKEY_get_base_id(ret)) { case EVP_PKEY_RSA: if ((ret->pkey.rsa = d2i_RSAPublicKey(NULL, pp, length)) == NULL) { ERR_raise(ERR_LIB_ASN1, ERR_R_ASN1_LIB); goto err; } break; #ifndef OPENSSL_NO_DSA case EVP_PKEY_DSA: if (!d2i_DSAPublicKey(&ret->pkey.dsa, pp, length)) { ERR_raise(ERR_LIB_ASN1, ERR_R_ASN1_LIB); goto err; } break; #endif #ifndef OPENSSL_NO_EC case EVP_PKEY_EC: if (copy != NULL) { /* use downgraded parameters from copy */ ret->pkey.ec = copy->pkey.ec; copy->pkey.ec = NULL; } if (!o2i_ECPublicKey(&ret->pkey.ec, pp, length)) { ERR_raise(ERR_LIB_ASN1, ERR_R_ASN1_LIB); goto err; } break; #endif default: ERR_raise(ERR_LIB_ASN1, ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE); goto err; } if (a != NULL) (*a) = ret; EVP_PKEY_free(copy); return ret; err: if (a == NULL || *a != ret) EVP_PKEY_free(ret); EVP_PKEY_free(copy); return NULL; } |