/usr/include/wolfssl/wolfcrypt/hc128.h is in libwolfssl-dev 3.13.0+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | /* hc128.h
*
* Copyright (C) 2006-2017 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
#ifndef WOLF_CRYPT_HC128_H
#define WOLF_CRYPT_HC128_H
#include <wolfssl/wolfcrypt/types.h>
#ifndef NO_HC128
#ifdef __cplusplus
extern "C" {
#endif
enum {
HC128_ENC_TYPE = 6 /* cipher unique type */
};
/* HC-128 stream cipher */
typedef struct HC128 {
word32 T[1024]; /* P[i] = T[i]; Q[i] = T[1024 + i ]; */
word32 X[16];
word32 Y[16];
word32 counter1024; /* counter1024 = i mod 1024 at the ith step */
word32 key[8];
word32 iv[8];
#ifdef XSTREAM_ALIGN
void* heap; /* heap hint, currently XMALLOC only used with aligning */
#endif
} HC128;
WOLFSSL_API int wc_Hc128_Process(HC128*, byte*, const byte*, word32);
WOLFSSL_API int wc_Hc128_SetKey(HC128*, const byte* key, const byte* iv);
WOLFSSL_LOCAL int wc_Hc128_SetHeap(HC128* ctx, void* heap);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* HAVE_HC128 */
#endif /* WOLF_CRYPT_HC128_H */
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