[331] | 1 | /*
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| 2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <stdio.h>
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| 11 | #include "internal/cryptlib.h"
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| 12 | #include <openssl/bn.h>
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| 13 | #include <openssl/evp.h>
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| 14 | #include <openssl/objects.h>
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| 15 | #include <openssl/asn1.h>
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| 16 | #include <openssl/rsa.h>
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| 17 | #include <openssl/dsa.h>
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| 18 | #include <openssl/ec.h>
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| 19 |
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| 20 | #include "internal/evp_int.h"
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| 21 |
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| 22 | EVP_PKEY *d2i_PublicKey(int type, EVP_PKEY **a, const unsigned char **pp,
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| 23 | long length)
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| 24 | {
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| 25 | EVP_PKEY *ret;
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| 26 |
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| 27 | if ((a == NULL) || (*a == NULL)) {
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| 28 | if ((ret = EVP_PKEY_new()) == NULL) {
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| 29 | ASN1err(ASN1_F_D2I_PUBLICKEY, ERR_R_EVP_LIB);
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| 30 | return (NULL);
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| 31 | }
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| 32 | } else
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| 33 | ret = *a;
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| 34 |
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| 35 | if (!EVP_PKEY_set_type(ret, type)) {
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| 36 | ASN1err(ASN1_F_D2I_PUBLICKEY, ERR_R_EVP_LIB);
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| 37 | goto err;
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| 38 | }
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| 39 |
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| 40 | switch (EVP_PKEY_id(ret)) {
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| 41 | #ifndef OPENSSL_NO_RSA
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| 42 | case EVP_PKEY_RSA:
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| 43 | if ((ret->pkey.rsa = d2i_RSAPublicKey(NULL, pp, length)) == NULL) {
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| 44 | ASN1err(ASN1_F_D2I_PUBLICKEY, ERR_R_ASN1_LIB);
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| 45 | goto err;
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| 46 | }
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| 47 | break;
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| 48 | #endif
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| 49 | #ifndef OPENSSL_NO_DSA
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| 50 | case EVP_PKEY_DSA:
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| 51 | /* TMP UGLY CAST */
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| 52 | if (!d2i_DSAPublicKey(&ret->pkey.dsa, pp, length)) {
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| 53 | ASN1err(ASN1_F_D2I_PUBLICKEY, ERR_R_ASN1_LIB);
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| 54 | goto err;
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| 55 | }
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| 56 | break;
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| 57 | #endif
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| 58 | #ifndef OPENSSL_NO_EC
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| 59 | case EVP_PKEY_EC:
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| 60 | if (!o2i_ECPublicKey(&ret->pkey.ec, pp, length)) {
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| 61 | ASN1err(ASN1_F_D2I_PUBLICKEY, ERR_R_ASN1_LIB);
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| 62 | goto err;
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| 63 | }
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| 64 | break;
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| 65 | #endif
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| 66 | default:
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| 67 | ASN1err(ASN1_F_D2I_PUBLICKEY, ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE);
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| 68 | goto err;
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| 69 | /* break; */
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| 70 | }
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| 71 | if (a != NULL)
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| 72 | (*a) = ret;
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| 73 | return (ret);
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| 74 | err:
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| 75 | if (a == NULL || *a != ret)
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| 76 | EVP_PKEY_free(ret);
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| 77 | return (NULL);
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| 78 | }
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