oxedyne/fe2o3 — fe2o3_crypto/src/c/rng.h

1.2 KiB, 1 run

created by r1870400018:222, which is this file's identity for as long as the history lasts, whatever it is later renamed to

1	//
2	// rng.h
3	//
4	// Created by Bassham, Lawrence E (Fed) on 8/29/17.
5	// Copyright © 2017 Bassham, Lawrence E (Fed). All rights reserved.
6	//
7
8	#ifndef rng_h
9	#define rng_h
10
11	#include <stdio.h>
12
13	#define RNG_SUCCESS 0
14	#define RNG_BAD_MAXLEN -1
15	#define RNG_BAD_OUTBUF -2
16	#define RNG_BAD_REQ_LEN -3
17
18	typedef struct {
19	unsigned char buffer[16];
20	int buffer_pos;
21	unsigned long length_remaining;
22	unsigned char key[32];
23	unsigned char ctr[16];
24	} AES_XOF_struct;
25
26	typedef struct {
27	unsigned char Key[32];
28	unsigned char V[16];
29	int reseed_counter;
30	} AES256_CTR_DRBG_struct;
31
32
33	void
34	AES256_CTR_DRBG_Update(unsigned char *provided_data,
35	unsigned char *Key,
36	unsigned char *V);
37
38	int
39	seedexpander_init(AES_XOF_struct *ctx,
40	unsigned char *seed,
41	unsigned char *diversifier,
42	unsigned long maxlen);
43
44	int
45	seedexpander(AES_XOF_struct ctx, unsigned char x, unsigned long xlen);
46
47	void
48	randombytes_init(unsigned char *entropy_input,
49	unsigned char *personalization_string,
50	int security_strength);
51
52	int
53	randombytes(unsigned char *x, unsigned long long xlen);
54
55	#endif /* rng_h */