diff options
Diffstat (limited to 'crypto/secp256k1/libsecp256k1/src/testrand.h')
-rw-r--r-- | crypto/secp256k1/libsecp256k1/src/testrand.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/crypto/secp256k1/libsecp256k1/src/testrand.h b/crypto/secp256k1/libsecp256k1/src/testrand.h new file mode 100644 index 000000000..f8efa93c7 --- /dev/null +++ b/crypto/secp256k1/libsecp256k1/src/testrand.h @@ -0,0 +1,38 @@ +/********************************************************************** + * Copyright (c) 2013, 2014 Pieter Wuille * + * Distributed under the MIT software license, see the accompanying * + * file COPYING or http://www.opensource.org/licenses/mit-license.php.* + **********************************************************************/ + +#ifndef _SECP256K1_TESTRAND_H_ +#define _SECP256K1_TESTRAND_H_ + +#if defined HAVE_CONFIG_H +#include "libsecp256k1-config.h" +#endif + +/* A non-cryptographic RNG used only for test infrastructure. */ + +/** Seed the pseudorandom number generator for testing. */ +SECP256K1_INLINE static void secp256k1_rand_seed(const unsigned char *seed16); + +/** Generate a pseudorandom number in the range [0..2**32-1]. */ +static uint32_t secp256k1_rand32(void); + +/** Generate a pseudorandom number in the range [0..2**bits-1]. Bits must be 1 or + * more. */ +static uint32_t secp256k1_rand_bits(int bits); + +/** Generate a pseudorandom number in the range [0..range-1]. */ +static uint32_t secp256k1_rand_int(uint32_t range); + +/** Generate a pseudorandom 32-byte array. */ +static void secp256k1_rand256(unsigned char *b32); + +/** Generate a pseudorandom 32-byte array with long sequences of zero and one bits. */ +static void secp256k1_rand256_test(unsigned char *b32); + +/** Generate pseudorandom bytes with long sequences of zero and one bits. */ +static void secp256k1_rand_bytes_test(unsigned char *bytes, size_t len); + +#endif |