660140206e
Several callers of EVP_EncodeBlock are doing ad-hoc versions of this function without any overflow checks. Change-Id: I4d0cad2347ea8c44b42465e8b14b2783db69ee8f Reviewed-on: https://boringssl-review.googlesource.com/1511 Reviewed-by: David Benjamin <davidben@chromium.org> Reviewed-by: Adam Langley <agl@google.com>
130 lines
4.6 KiB
C
130 lines
4.6 KiB
C
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
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* project 1999. */
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/* ====================================================================
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* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com). */
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#include <openssl/base64.h>
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#include <openssl/err.h>
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#include <openssl/mem.h>
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#include <openssl/x509.h>
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int NETSCAPE_SPKI_set_pubkey(NETSCAPE_SPKI *x, EVP_PKEY *pkey)
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{
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if ((x == NULL) || (x->spkac == NULL)) return(0);
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return(X509_PUBKEY_set(&(x->spkac->pubkey),pkey));
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}
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EVP_PKEY *NETSCAPE_SPKI_get_pubkey(NETSCAPE_SPKI *x)
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{
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if ((x == NULL) || (x->spkac == NULL))
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return(NULL);
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return(X509_PUBKEY_get(x->spkac->pubkey));
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}
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/* Load a Netscape SPKI from a base64 encoded string */
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NETSCAPE_SPKI * NETSCAPE_SPKI_b64_decode(const char *str, int len)
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{
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unsigned char *spki_der;
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const unsigned char *p;
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int spki_len;
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NETSCAPE_SPKI *spki;
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if(len <= 0) len = strlen(str);
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if (!(spki_der = OPENSSL_malloc(len + 1))) {
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OPENSSL_PUT_ERROR(X509, NETSCAPE_SPKI_b64_decode, ERR_R_MALLOC_FAILURE);
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return NULL;
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}
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spki_len = EVP_DecodeBlock(spki_der, (const unsigned char *)str, len);
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if(spki_len < 0) {
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OPENSSL_PUT_ERROR(X509, NETSCAPE_SPKI_b64_decode, X509_R_BASE64_DECODE_ERROR);
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OPENSSL_free(spki_der);
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return NULL;
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}
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p = spki_der;
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spki = d2i_NETSCAPE_SPKI(NULL, &p, spki_len);
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OPENSSL_free(spki_der);
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return spki;
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}
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/* Generate a base64 encoded string from an SPKI */
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char * NETSCAPE_SPKI_b64_encode(NETSCAPE_SPKI *spki)
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{
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unsigned char *der_spki, *p;
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char *b64_str;
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size_t b64_len;
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int der_len;
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der_len = i2d_NETSCAPE_SPKI(spki, NULL);
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if (!EVP_EncodedLength(&b64_len, der_len))
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{
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OPENSSL_PUT_ERROR(X509, NETSCAPE_SPKI_b64_encode, ERR_R_OVERFLOW);
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return NULL;
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}
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der_spki = OPENSSL_malloc(der_len);
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if (der_spki == NULL) {
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OPENSSL_PUT_ERROR(X509, NETSCAPE_SPKI_b64_encode, ERR_R_MALLOC_FAILURE);
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return NULL;
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}
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b64_str = OPENSSL_malloc(b64_len);
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if (b64_str == NULL) {
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OPENSSL_free(der_spki);
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OPENSSL_PUT_ERROR(X509, NETSCAPE_SPKI_b64_encode, ERR_R_MALLOC_FAILURE);
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return NULL;
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}
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p = der_spki;
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i2d_NETSCAPE_SPKI(spki, &p);
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EVP_EncodeBlock((unsigned char *)b64_str, der_spki, der_len);
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OPENSSL_free(der_spki);
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return b64_str;
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}
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