diff options
author | Dr. Stephen Henson <steve@openssl.org> | 2006-04-06 13:02:06 +0000 |
---|---|---|
committer | Dr. Stephen Henson <steve@openssl.org> | 2006-04-06 13:02:06 +0000 |
commit | 0b6f3c66cddf047933b8ff77c4f8a3e706e93aa6 (patch) | |
tree | 072aa96c432ee3962c2f5bee5e93eb0d781c859e /crypto/evp/pmeth_lib.c | |
parent | a01d9ac5582657cd2579153b8c5987b4201f1688 (diff) |
Initial definitions and a few functions for EVP_PKEY_METHOD: an extension
of the EVP routines to public key algorithms.
Diffstat (limited to 'crypto/evp/pmeth_lib.c')
-rw-r--r-- | crypto/evp/pmeth_lib.c | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/crypto/evp/pmeth_lib.c b/crypto/evp/pmeth_lib.c new file mode 100644 index 0000000000..1830ea1a6d --- /dev/null +++ b/crypto/evp/pmeth_lib.c @@ -0,0 +1,146 @@ +/* pmeth_lib.c */ +/* 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 <stdlib.h> +#include <openssl/objects.h> +#include "cryptlib.h" +#include "evp_locl.h" + +STACK *app_pkey_methods = NULL; + +extern EVP_PKEY_METHOD rsa_pkey_meth; + +const EVP_PKEY_METHOD *standard_methods[] = + { + &rsa_pkey_meth + }; + +static int pmeth_cmp(const EVP_PKEY_METHOD * const *a, + const EVP_PKEY_METHOD * const *b) + { + return ((*a)->pkey_id - (*b)->pkey_id); + } + +const EVP_PKEY_METHOD *EVP_PKEY_meth_find(int type, ENGINE *e) + { + EVP_PKEY_METHOD tmp, *t = &tmp, **ret; + tmp.pkey_id = type; + if (app_pkey_methods) + { + int idx; + idx = sk_find(app_pkey_methods, (char *)&tmp); + if (idx >= 0) + return (EVP_PKEY_METHOD *) + sk_value(app_pkey_methods, idx); + } + ret = (EVP_PKEY_METHOD **) OBJ_bsearch((char *)&t, + (char *)standard_methods, + sizeof(standard_methods)/sizeof(EVP_PKEY_METHOD *), + sizeof(EVP_PKEY_METHOD *), + (int (*)(const void *, const void *))pmeth_cmp); + if (!ret || !*ret) + return NULL; + return *ret; + } + +EVP_PKEY_CTX *EVP_PKEY_CTX_new(int ktype, ENGINE *e) + { + EVP_PKEY_CTX *ret; + const EVP_PKEY_METHOD *pmeth; + pmeth = EVP_PKEY_meth_find(ktype, e); + if (pmeth == NULL) + return NULL; + ret = OPENSSL_malloc(sizeof(EVP_PKEY_CTX)); + ret->pmeth = pmeth; + ret->operation = EVP_PKEY_OP_UNDEFINED; + ret->pkey = NULL; + ret->data = NULL; + + return ret; + } + +int EVP_PKEY_CTX_ctrl(EVP_PKEY_CTX *ctx, int keytype, int optype, + int cmd, int p1, void *p2) + { + if (!ctx || !ctx->pmeth || !ctx->pmeth->ctrl) + return -2; + if ((keytype != -1) && (ctx->pmeth->pkey_id != keytype)) + return -1; + + if (ctx->operation == EVP_PKEY_OP_UNDEFINED) + { + /* Not initialized */ + return -1; + } + + if ((optype != -1) && (ctx->operation != optype)) + { + /* Invalid operation type */ + return -1; + } + + return ctx->pmeth->ctrl(ctx, cmd, p1, p2); + + } + + + + + + |