pkcs5_pbkdf2.h

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/* Copyright (c) 2013 Wildfire Games
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#ifndef PKCS5_PBKD2_INCLUDED
#define PKCS5_PBKD2_INCLUDED

// We need to know SHA_DIGEST_SIZE.
#include "third_party/encryption/sha.h"

/**
 * Simple PBKDF2 implementation for hard to crack passwords
 * @param output The output buffer for the digested hash
 * @param key The initial key we want to hash
 * @param key_len Length of the key in bytes
 * @param salt The salt we use to iteratively hash the key.
 * @param salt_len Length of the salt in bytes
 * @param iterations Number of salting iterations
 * @return 0 on success, -1 on error
 */
int pbkdf2(unsigned char (&output)[SHA_DIGEST_SIZE],
            const unsigned char* key, size_t key_len,
            const unsigned char* salt, size_t salt_len,
            unsigned iterations);

#endif // PKCS5_PBKD2_INCLUDED