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/* ppp-crypo-priv.h - Crypto private data structures
*
* Copyright (c) 2022 Eivind Næss. 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. The name(s) of the authors of this software must not be used to
* endorse or promote products derived from this software without
* prior written permission.
*
* THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef PPP_CRYPTO_PRIV_H
#define PPP_CRYPTO_PRIV_H
#include "ppp-crypto.h"
#define MAX_KEY_SIZE 32
#define MAX_IV_SIZE 32
struct _PPP_MD
{
int (*init_fn)(PPP_MD_CTX *ctx);
int (*update_fn)(PPP_MD_CTX *ctx, const void *data, size_t cnt);
int (*final_fn)(PPP_MD_CTX *ctx, unsigned char *out, unsigned int *outlen);
void (*clean_fn)(PPP_MD_CTX *ctx);
};
struct _PPP_MD_CTX
{
PPP_MD md;
void *priv;
};
struct _PPP_CIPHER
{
int (*init_fn)(PPP_CIPHER_CTX *ctx, const unsigned char *key, const unsigned char *iv);
int (*update_fn)(PPP_CIPHER_CTX *ctx, unsigned char *out, int *outl, const unsigned char *in, int inl);
int (*final_fn)(PPP_CIPHER_CTX *ctx, unsigned char *out, int *outl);
void (*clean_fn)(PPP_CIPHER_CTX *ctx);
};
struct _PPP_CIPHER_CTX
{
PPP_CIPHER cipher;
unsigned char key[MAX_KEY_SIZE];
unsigned char iv[MAX_IV_SIZE];
int is_encr;
void *priv;
};
#endif
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