Bitcoin Core  24.99.0
P2P Digital Currency
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 /* A non-cryptographic RNG used only for test infrastructure. */
11 
13 SECP256K1_INLINE static void secp256k1_testrand_seed(const unsigned char *seed16);
14 
16 SECP256K1_INLINE static uint32_t secp256k1_testrand32(void);
17 
19 SECP256K1_INLINE static uint64_t secp256k1_testrand64(void);
20 
23 SECP256K1_INLINE static uint64_t secp256k1_testrand_bits(int bits);
24 
26 static uint32_t secp256k1_testrand_int(uint32_t range);
27 
29 static void secp256k1_testrand256(unsigned char *b32);
30 
32 static void secp256k1_testrand256_test(unsigned char *b32);
33 
35 static void secp256k1_testrand_bytes_test(unsigned char *bytes, size_t len);
36 
38 static void secp256k1_testrand_flip(unsigned char *b, size_t len);
39 
41 static void secp256k1_testrand_init(const char* hexseed);
42 
44 static void secp256k1_testrand_finish(void);
45 
46 #endif /* SECP256K1_TESTRAND_H */
#define SECP256K1_INLINE
Definition: secp256k1.h:131
static uint32_t secp256k1_testrand_int(uint32_t range)
Generate a pseudorandom number in the range [0..range-1].
static void secp256k1_testrand_flip(unsigned char *b, size_t len)
Flip a single random bit in a byte array.
static void secp256k1_testrand_bytes_test(unsigned char *bytes, size_t len)
Generate pseudorandom bytes with long sequences of zero and one bits.
static SECP256K1_INLINE uint64_t secp256k1_testrand64(void)
Generate a pseudorandom number in the range [0..2**64-1].
static void secp256k1_testrand256(unsigned char *b32)
Generate a pseudorandom 32-byte array.
static SECP256K1_INLINE void secp256k1_testrand_seed(const unsigned char *seed16)
Seed the pseudorandom number generator for testing.
static void secp256k1_testrand_init(const char *hexseed)
Initialize the test RNG using (hex encoded) array up to 16 bytes, or randomly if hexseed is NULL.
static void secp256k1_testrand_finish(void)
Print final test information.
static SECP256K1_INLINE uint32_t secp256k1_testrand32(void)
Generate a pseudorandom number in the range [0..2**32-1].
static void secp256k1_testrand256_test(unsigned char *b32)
Generate a pseudorandom 32-byte array with long sequences of zero and one bits.
static SECP256K1_INLINE uint64_t secp256k1_testrand_bits(int bits)
Generate a pseudorandom number in the range [0..2**bits-1].