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ykpbkdf2.h

/* -*- mode:C; c-file-style: "bsd" -*- */
/* Copyright (c) 2008, Yubico AB
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *
 *     * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "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 COPYRIGHT
 * OWNER 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
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#ifndef     __YKPBKDF2_H_INCLUDED__
#define     __YKPBKDF2_H_INCLUDED__

#include <stddef.h>
#include <stdint.h>

typedef struct yk_prf_context YK_PRF_CTX;
typedef struct yk_prf_method YK_PRF_METHOD;
struct yk_prf_method {
      size_t output_size;
      int (*prf_fn)(const char *key, size_t key_len,
                  const char *text, size_t text_len,
                  uint8_t *output, size_t output_size);
};
extern YK_PRF_METHOD yk_hmac_sha1;

int yk_pbkdf2(const char *passphrase,
            const unsigned char *salt, size_t salt_len,
            unsigned int iterations,
            unsigned char *dk, size_t dklen,
            YK_PRF_METHOD *prf_method);

#endif

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