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- /*
- * Copyright 2007-2017 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the OpenSSL license (the "License"). You may not use
- * this file except in compliance with the License. You can obtain a copy
- * in the file LICENSE in the source distribution or at
- * https://www.openssl.org/source/license.html
- */
- #include <stdio.h>
- #include "internal/cryptlib.h"
- #include <openssl/evp.h>
- #include "internal/asn1_int.h"
- #include "internal/siphash.h"
- #include "siphash_local.h"
- /*
- * SIPHASH "ASN1" method. This is just here to indicate the maximum
- * SIPHASH output length and to free up a SIPHASH key.
- */
- static int siphash_size(const EVP_PKEY *pkey)
- {
- return SIPHASH_MAX_DIGEST_SIZE;
- }
- static void siphash_key_free(EVP_PKEY *pkey)
- {
- ASN1_OCTET_STRING *os = EVP_PKEY_get0(pkey);
- if (os != NULL) {
- if (os->data != NULL)
- OPENSSL_cleanse(os->data, os->length);
- ASN1_OCTET_STRING_free(os);
- }
- }
- static int siphash_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
- {
- /* nothing (including ASN1_PKEY_CTRL_DEFAULT_MD_NID), is supported */
- return -2;
- }
- static int siphash_pkey_public_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
- {
- return ASN1_OCTET_STRING_cmp(EVP_PKEY_get0(a), EVP_PKEY_get0(b));
- }
- const EVP_PKEY_ASN1_METHOD siphash_asn1_meth = {
- EVP_PKEY_SIPHASH,
- EVP_PKEY_SIPHASH,
- 0,
- "SIPHASH",
- "OpenSSL SIPHASH method",
- 0, 0, siphash_pkey_public_cmp, 0,
- 0, 0, 0,
- siphash_size,
- 0, 0,
- 0, 0, 0, 0, 0, 0, 0,
- siphash_key_free,
- siphash_pkey_ctrl,
- 0, 0
- };
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