Random Number Generation

A cryptographically secure pseudo-random number generator (CSPRNG) is a pseudo-random number generator (PRNG) with properties that make it suitable for use in cryptography.

Using the standard random module APIs for cryptographic keys or initialization vectors can result in major security issues depending on the algorithms in use.

wolfcrypt provides the following CSPRNG implementation:

class wolfcrypt.random.Random

A Cryptographically Secure Pseudo Random Number Generator - CSPRNG

byte()

Generate and return a random byte.

bytes(length)

Generate and return a random sequence of length bytes.

Example

>>> from wolfcrypt.random import Random
>>>
>>> r = Random()
>>> b = r.byte()
>>> b 
b'\x8c'
>>> b16 = r.bytes(16)
>>> b16 
b']\x93nk\x95\xbc@\xffX\xab\xdcB\xda\x11\xf7\x03'