xref: /freebsd/sys/contrib/openzfs/include/sys/edonr.h (revision 22649d4dba730d46244fd2dff4fd174903c8379f)
1 // SPDX-License-Identifier: CDDL-1.0
2 /*
3  * This file and its contents are supplied under the terms of the
4  * Common Development and Distribution License ("CDDL"), version 1.0.
5  * You may only use this file in accordance with the terms of version
6  * 1.0 of the CDDL.
7  *
8  * A full copy of the text of the CDDL should have accompanied this
9  * source.  A copy of the CDDL is also available via the Internet at
10  * https://opensource.org/license/CDDL-1.0.
11  */
12 
13 /*
14  * Based on Edon-R implementation for SUPERCOP, based on NIST API.
15  * Copyright (c) 2009, 2010 Jørn Amundsen <jorn.amundsen@ntnu.no>
16  * Copyright (c) 2013 Saso Kiselkov, All rights reserved
17  * Copyright (c) 2022 Tino Reichardt <milky-zfs@mcmilk.de>
18  */
19 
20 #ifndef	_SYS_EDONR_H_
21 #define	_SYS_EDONR_H_
22 
23 #ifdef	__cplusplus
24 extern "C" {
25 #endif
26 
27 #ifdef  _KERNEL
28 #include <sys/types.h>
29 #else
30 #include <stdint.h>
31 #include <stdlib.h>
32 #endif
33 
34 /*
35  * EdonR allows to call EdonRUpdate() consecutively only if the total length
36  * of stored unprocessed data and the new supplied data is less than or equal
37  * to the BLOCK_SIZE on which the compression functions operates.
38  * Otherwise an assertion failure is invoked.
39  */
40 
41 /* Specific algorithm definitions */
42 #define	EdonR512_DIGEST_SIZE	64
43 #define	EdonR512_BLOCK_SIZE	128
44 #define	EdonR512_BLOCK_BITSIZE	1024
45 
46 typedef struct {
47 	uint64_t DoublePipe[16];
48 	uint8_t LastPart[EdonR512_BLOCK_SIZE * 2];
49 } EdonRData512;
50 
51 typedef struct {
52 	uint64_t bits_processed;
53 	int unprocessed_bits;
54 	union {
55 		EdonRData512 p512[1];
56 	} pipe[1];
57 } EdonRState;
58 
59 void EdonRInit(EdonRState *state);
60 void EdonRUpdate(EdonRState *state, const uint8_t *data, size_t databitlen);
61 void EdonRFinal(EdonRState *state, uint8_t *hashval);
62 void EdonRHash(const uint8_t *data, size_t databitlen, uint8_t *hashval);
63 
64 #ifdef	__cplusplus
65 }
66 #endif
67 
68 #endif	/* _SYS_EDONR_H_ */
69