Bitcoin Core 31.1.0
P2P Digital Currency
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testrand.h
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1/***********************************************************************
2 * Copyright (c) 2013, 2014 Pieter Wuille *
3 * Distributed under the MIT software license, see the accompanying *
4 * file COPYING or https://www.opensource.org/licenses/mit-license.php.*
5 ***********************************************************************/
6
7#ifndef SECP256K1_TESTRAND_H
8#define SECP256K1_TESTRAND_H
9
10#include "util.h"
11
12/* A non-cryptographic RNG used only for test infrastructure. */
13
15SECP256K1_INLINE static void testrand_seed(const unsigned char *seed16);
16
18SECP256K1_INLINE static uint32_t testrand32(void);
19
21SECP256K1_INLINE static uint64_t testrand64(void);
22
25SECP256K1_INLINE static uint64_t testrand_bits(int bits);
26
28static uint32_t testrand_int(uint32_t range);
29
31static void testrand256(unsigned char *b32);
32
34static void testrand256_test(unsigned char *b32);
35
37static void testrand_bytes_test(unsigned char *bytes, size_t len);
38
40static void testrand_flip(unsigned char *b, size_t len);
41
43static void testrand_init(const char* hexseed);
44
46static void testrand_finish(void);
47
48#endif /* SECP256K1_TESTRAND_H */
SECP256K1_INLINE
#define SECP256K1_INLINE
Definition util.h:54
testrand_flip
static void testrand_flip(unsigned char *b, size_t len)
Flip a single random bit in a byte array.
testrand256_test
static void testrand256_test(unsigned char *b32)
Generate a pseudorandom 32-byte array with long sequences of zero and one bits.
testrand64
static SECP256K1_INLINE uint64_t testrand64(void)
Generate a pseudorandom number in the range [0..2**64-1].
testrand256
static void testrand256(unsigned char *b32)
Generate a pseudorandom 32-byte array.
testrand32
static SECP256K1_INLINE uint32_t testrand32(void)
Generate a pseudorandom number in the range [0..2**32-1].
testrand_bits
static SECP256K1_INLINE uint64_t testrand_bits(int bits)
Generate a pseudorandom number in the range [0..2**bits-1].
testrand_int
static uint32_t testrand_int(uint32_t range)
Generate a pseudorandom number in the range [0..range-1].
testrand_seed
static SECP256K1_INLINE void testrand_seed(const unsigned char *seed16)
Seed the pseudorandom number generator for testing.
testrand_init
static void testrand_init(const char *hexseed)
Initialize the test RNG using (hex encoded) array up to 16 bytes, or randomly if hexseed is NULL.
testrand_bytes_test
static void testrand_bytes_test(unsigned char *bytes, size_t len)
Generate pseudorandom bytes with long sequences of zero and one bits.
testrand_finish
static void testrand_finish(void)
Print final test information.
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