+++ /dev/null
-/* crypto/asn1/x_pubkey.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * 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 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 acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS 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 AUTHOR OR 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.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
-
-#include <stdio.h>
-#include "cryptlib.h"
-#include <openssl/asn1t.h>
-#include <openssl/x509.h>
-#include "asn1_locl.h"
-#ifndef OPENSSL_NO_RSA
-#include <openssl/rsa.h>
-#endif
-#ifndef OPENSSL_NO_DSA
-#include <openssl/dsa.h>
-#endif
-
-/* Minor tweak to operation: free up EVP_PKEY */
-static int pubkey_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
- void *exarg)
- {
- if (operation == ASN1_OP_FREE_POST)
- {
- X509_PUBKEY *pubkey = (X509_PUBKEY *)*pval;
- EVP_PKEY_free(pubkey->pkey);
- }
- return 1;
- }
-
-ASN1_SEQUENCE_cb(X509_PUBKEY, pubkey_cb) = {
- ASN1_SIMPLE(X509_PUBKEY, algor, X509_ALGOR),
- ASN1_SIMPLE(X509_PUBKEY, public_key, ASN1_BIT_STRING)
-} ASN1_SEQUENCE_END_cb(X509_PUBKEY, X509_PUBKEY)
-
-IMPLEMENT_ASN1_FUNCTIONS(X509_PUBKEY)
-
-int X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey)
- {
- X509_PUBKEY *pk=NULL;
-
- if (x == NULL) return(0);
-
- if ((pk=X509_PUBKEY_new()) == NULL) goto error;
-
- if (pkey->ameth)
- {
- if (pkey->ameth->pub_encode)
- {
- if (!pkey->ameth->pub_encode(pk, pkey))
- {
- X509err(X509_F_X509_PUBKEY_SET,
- X509_R_PUBLIC_KEY_ENCODE_ERROR);
- goto error;
- }
- }
- else
- {
- X509err(X509_F_X509_PUBKEY_SET,
- X509_R_METHOD_NOT_SUPPORTED);
- goto error;
- }
- }
- else
- {
- X509err(X509_F_X509_PUBKEY_SET,X509_R_UNSUPPORTED_ALGORITHM);
- goto error;
- }
-
- if (*x != NULL)
- X509_PUBKEY_free(*x);
-
- *x=pk;
-
- return 1;
-error:
- if (pk != NULL) X509_PUBKEY_free(pk);
- return 0;
- }
-
-EVP_PKEY *X509_PUBKEY_get(X509_PUBKEY *key)
- {
- EVP_PKEY *ret=NULL;
-
- if (key == NULL) goto error;
-
- if (key->pkey != NULL)
- {
- CRYPTO_add(&key->pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
- return key->pkey;
- }
-
- if (key->public_key == NULL) goto error;
-
- if ((ret = EVP_PKEY_new()) == NULL)
- {
- X509err(X509_F_X509_PUBKEY_GET, ERR_R_MALLOC_FAILURE);
- goto error;
- }
-
- if (!EVP_PKEY_set_type(ret, OBJ_obj2nid(key->algor->algorithm)))
- {
- X509err(X509_F_X509_PUBKEY_GET,X509_R_UNSUPPORTED_ALGORITHM);
- goto error;
- }
-
- if (ret->ameth->pub_decode)
- {
- if (!ret->ameth->pub_decode(ret, key))
- {
- X509err(X509_F_X509_PUBKEY_GET,
- X509_R_PUBLIC_KEY_DECODE_ERROR);
- goto error;
- }
- }
- else
- {
- X509err(X509_F_X509_PUBKEY_GET, X509_R_METHOD_NOT_SUPPORTED);
- goto error;
- }
-
- /* Check to see if another thread set key->pkey first */
- CRYPTO_w_lock(CRYPTO_LOCK_EVP_PKEY);
- if (key->pkey)
- {
- CRYPTO_w_unlock(CRYPTO_LOCK_EVP_PKEY);
- EVP_PKEY_free(ret);
- ret = key->pkey;
- }
- else
- {
- key->pkey = ret;
- CRYPTO_w_unlock(CRYPTO_LOCK_EVP_PKEY);
- }
- CRYPTO_add(&ret->references, 1, CRYPTO_LOCK_EVP_PKEY);
-
- return ret;
-
- error:
- if (ret != NULL)
- EVP_PKEY_free(ret);
- return(NULL);
- }
-
-/* Now two pseudo ASN1 routines that take an EVP_PKEY structure
- * and encode or decode as X509_PUBKEY
- */
-
-EVP_PKEY *d2i_PUBKEY(EVP_PKEY **a, const unsigned char **pp,
- long length)
- {
- X509_PUBKEY *xpk;
- EVP_PKEY *pktmp;
- xpk = d2i_X509_PUBKEY(NULL, pp, length);
- if(!xpk) return NULL;
- pktmp = X509_PUBKEY_get(xpk);
- X509_PUBKEY_free(xpk);
- if(!pktmp) return NULL;
- if(a)
- {
- EVP_PKEY_free(*a);
- *a = pktmp;
- }
- return pktmp;
- }
-
-int i2d_PUBKEY(EVP_PKEY *a, unsigned char **pp)
- {
- X509_PUBKEY *xpk=NULL;
- int ret;
- if(!a) return 0;
- if(!X509_PUBKEY_set(&xpk, a)) return 0;
- ret = i2d_X509_PUBKEY(xpk, pp);
- X509_PUBKEY_free(xpk);
- return ret;
- }
-
-/* The following are equivalents but which return RSA and DSA
- * keys
- */
-#ifndef OPENSSL_NO_RSA
-RSA *d2i_RSA_PUBKEY(RSA **a, const unsigned char **pp,
- long length)
- {
- EVP_PKEY *pkey;
- RSA *key;
- const unsigned char *q;
- q = *pp;
- pkey = d2i_PUBKEY(NULL, &q, length);
- if (!pkey) return NULL;
- key = EVP_PKEY_get1_RSA(pkey);
- EVP_PKEY_free(pkey);
- if (!key) return NULL;
- *pp = q;
- if (a)
- {
- RSA_free(*a);
- *a = key;
- }
- return key;
- }
-
-int i2d_RSA_PUBKEY(RSA *a, unsigned char **pp)
- {
- EVP_PKEY *pktmp;
- int ret;
- if (!a) return 0;
- pktmp = EVP_PKEY_new();
- if (!pktmp)
- {
- ASN1err(ASN1_F_I2D_RSA_PUBKEY, ERR_R_MALLOC_FAILURE);
- return 0;
- }
- EVP_PKEY_set1_RSA(pktmp, a);
- ret = i2d_PUBKEY(pktmp, pp);
- EVP_PKEY_free(pktmp);
- return ret;
- }
-#endif
-
-#ifndef OPENSSL_NO_DSA
-DSA *d2i_DSA_PUBKEY(DSA **a, const unsigned char **pp,
- long length)
- {
- EVP_PKEY *pkey;
- DSA *key;
- const unsigned char *q;
- q = *pp;
- pkey = d2i_PUBKEY(NULL, &q, length);
- if (!pkey) return NULL;
- key = EVP_PKEY_get1_DSA(pkey);
- EVP_PKEY_free(pkey);
- if (!key) return NULL;
- *pp = q;
- if (a)
- {
- DSA_free(*a);
- *a = key;
- }
- return key;
- }
-
-int i2d_DSA_PUBKEY(DSA *a, unsigned char **pp)
- {
- EVP_PKEY *pktmp;
- int ret;
- if(!a) return 0;
- pktmp = EVP_PKEY_new();
- if(!pktmp)
- {
- ASN1err(ASN1_F_I2D_DSA_PUBKEY, ERR_R_MALLOC_FAILURE);
- return 0;
- }
- EVP_PKEY_set1_DSA(pktmp, a);
- ret = i2d_PUBKEY(pktmp, pp);
- EVP_PKEY_free(pktmp);
- return ret;
- }
-#endif
-
-#ifndef OPENSSL_NO_EC
-EC_KEY *d2i_EC_PUBKEY(EC_KEY **a, const unsigned char **pp, long length)
- {
- EVP_PKEY *pkey;
- EC_KEY *key;
- const unsigned char *q;
- q = *pp;
- pkey = d2i_PUBKEY(NULL, &q, length);
- if (!pkey) return(NULL);
- key = EVP_PKEY_get1_EC_KEY(pkey);
- EVP_PKEY_free(pkey);
- if (!key) return(NULL);
- *pp = q;
- if (a)
- {
- EC_KEY_free(*a);
- *a = key;
- }
- return(key);
- }
-
-int i2d_EC_PUBKEY(EC_KEY *a, unsigned char **pp)
- {
- EVP_PKEY *pktmp;
- int ret;
- if (!a) return(0);
- if ((pktmp = EVP_PKEY_new()) == NULL)
- {
- ASN1err(ASN1_F_I2D_EC_PUBKEY, ERR_R_MALLOC_FAILURE);
- return(0);
- }
- EVP_PKEY_set1_EC_KEY(pktmp, a);
- ret = i2d_PUBKEY(pktmp, pp);
- EVP_PKEY_free(pktmp);
- return(ret);
- }
-#endif
-
-int X509_PUBKEY_set0_param(X509_PUBKEY *pub, ASN1_OBJECT *aobj,
- int ptype, void *pval,
- unsigned char *penc, int penclen)
- {
- if (!X509_ALGOR_set0(pub->algor, aobj, ptype, pval))
- return 0;
- if (penc)
- {
- if (pub->public_key->data)
- OPENSSL_free(pub->public_key->data);
- pub->public_key->data = penc;
- pub->public_key->length = penclen;
- /* Set number of unused bits to zero */
- pub->public_key->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07);
- pub->public_key->flags|=ASN1_STRING_FLAG_BITS_LEFT;
- }
- return 1;
- }
-
-int X509_PUBKEY_get0_param(ASN1_OBJECT **ppkalg,
- const unsigned char **pk, int *ppklen,
- X509_ALGOR **pa,
- X509_PUBKEY *pub)
- {
- if (ppkalg)
- *ppkalg = pub->algor->algorithm;
- if (pk)
- {
- *pk = pub->public_key->data;
- *ppklen = pub->public_key->length;
- }
- if (pa)
- *pa = pub->algor;
- return 1;
- }
projects / cassiopeia.git / blobdiff