diff options
Diffstat (limited to 'src/crypto/evp/p_hmac_asn1.c')
| -rw-r--r-- | src/crypto/evp/p_hmac_asn1.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/crypto/evp/p_hmac_asn1.c b/src/crypto/evp/p_hmac_asn1.c new file mode 100644 index 0000000..8aa6676 --- /dev/null +++ b/src/crypto/evp/p_hmac_asn1.c @@ -0,0 +1,89 @@ +/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL + * project 2007. + */ +/* ==================================================================== + * Copyright (c) 2007 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 <openssl/evp.h> + +#include <openssl/asn1.h> +#include <openssl/digest.h> +#include <openssl/mem.h> +#include <openssl/obj.h> + +#include "internal.h" + + +static int hmac_size(const EVP_PKEY *pkey) { return EVP_MAX_MD_SIZE; } + +static void hmac_key_free(EVP_PKEY *pkey) { + ASN1_OCTET_STRING *os = (ASN1_OCTET_STRING *)pkey->pkey.ptr; + if (os) { + if (os->data) { + OPENSSL_cleanse(os->data, os->length); + } + ASN1_OCTET_STRING_free(os); + } +} + +const EVP_PKEY_ASN1_METHOD hmac_asn1_meth = { + EVP_PKEY_HMAC, EVP_PKEY_HMAC, 0 /* flags */, + "HMAC", "OpenSSL HMAC method", 0 /* pub_decode */, + 0 /* pub_encode */, 0 /* pub_cmp */, 0 /* pub_print */, + 0 /*priv_decode */, 0 /* priv_encode */, 0 /* priv_print */, + 0 /* pkey_opaque */, 0 /* pkey_supports_digest */, + hmac_size, 0 /* pkey_bits */, 0 /* param_decode */, + 0 /* param_encode*/, 0 /* param_missing*/, 0 /* param_copy*/, + 0 /* param_cmp*/, 0 /* param_print*/, 0 /* sig_print*/, + hmac_key_free, 0 /* old_priv_decode */, + 0 /* old_priv_encode */ +}; |