diff options
author | Dr. Stephen Henson <steve@openssl.org> | 2006-03-20 12:22:24 +0000 |
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committer | Dr. Stephen Henson <steve@openssl.org> | 2006-03-20 12:22:24 +0000 |
commit | 448be743350791d32764fac38f5d3c8ffda481b2 (patch) | |
tree | 51b7450db232582f1cae8952ebbadc8e07fdc857 /crypto/rsa/rsa_ameth.c | |
parent | 1a5a1a93f6c48b135a2b384f7e571abb7b90fc55 (diff) |
Initial support for pluggable public key ASN1 support. Process most public
key ASN1 handling through a single EVP_PKEY_ASN1_METHOD structure and move
the spaghetti algorithm specific code to a single ASN1 module for each
algorithm.
Diffstat (limited to 'crypto/rsa/rsa_ameth.c')
-rw-r--r-- | crypto/rsa/rsa_ameth.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/crypto/rsa/rsa_ameth.c b/crypto/rsa/rsa_ameth.c new file mode 100644 index 0000000000..96e537571c --- /dev/null +++ b/crypto/rsa/rsa_ameth.c @@ -0,0 +1,154 @@ +/* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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 <stdio.h> +#include "cryptlib.h" +#include <openssl/asn1t.h> +#include <openssl/x509.h> +#include <openssl/rsa.h> + +static int rsa_pub_encode(X509_PUBKEY *pk, EVP_PKEY *pkey) + { + unsigned char *penc = NULL; + int penclen; + penclen = i2d_RSAPublicKey(pkey->pkey.rsa, &penc); + if (penclen <= 0) + return 0; + if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(EVP_PKEY_RSA), + V_ASN1_NULL, NULL, penc, penclen)) + return 1; + + OPENSSL_free(penc); + return 0; + } + +static int rsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey) + { + const unsigned char *p; + int pklen; + RSA *rsa = NULL; + if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, NULL, pubkey)) + return 0; + if (!(rsa = d2i_RSAPublicKey(NULL, &p, pklen))) + { + RSAerr(RSA_F_RSA_PUB_DECODE, ERR_R_RSA_LIB); + return 0; + } + EVP_PKEY_assign_RSA (pkey, rsa); + return 1; + } + +static int rsa_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8) + { + const unsigned char *p; + int pklen; + RSA *rsa = NULL; + if (!PKCS8_pkey_get0(NULL, &p, &pklen, NULL, p8)) + return 0; + if (!(rsa = d2i_RSAPrivateKey (NULL, &p, pklen))) + { + RSAerr(RSA_F_RSA_PRIV_DECODE, ERR_R_RSA_LIB); + return 0; + } + EVP_PKEY_assign_RSA (pkey, rsa); + return 1; + } + +static int rsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, EVP_PKEY *pkey) + { + unsigned char *rk = NULL; + int rklen; + rklen = i2d_RSAPrivateKey(pkey->pkey.rsa, &rk); + + if (rklen <= 0) + { + RSAerr(RSA_F_RSA_PRIV_ENCODE,ERR_R_MALLOC_FAILURE); + return 0; + } + + if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_rsaEncryption), 0, + V_ASN1_NULL, NULL, rk, rklen)) + { + RSAerr(RSA_F_RSA_PRIV_ENCODE,ERR_R_MALLOC_FAILURE); + return 0; + } + + return 1; + } + +const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[] = + { + { + EVP_PKEY_RSA, + EVP_PKEY_RSA, + 0, + rsa_pub_decode, + rsa_pub_encode, + 0, + rsa_priv_decode, + rsa_priv_encode, + 0, + 0, + 0 + }, + + { + EVP_PKEY_RSA2, + EVP_PKEY_RSA, + ASN1_PKEY_ALIAS + } + }; |