Package com.goterl.lazysodium.interfaces

Interface Random

    • Method Detail

      • randomBytesRandom

        long randomBytesRandom()
        Return a unsigned int byte 0 and 0xffffffff included.
        Returns:
        A random byte.

      • randomBytesUniform

        long randomBytesUniform​(int upperBound)
        Returns an unpredictable value between 0 and upperBound (excluded). Unlike randombytes_random() % upper_bound, it guarantees a uniform distribution of the possible output values even when upper_bound is not a power of 2. Note that an upper_bound less than 2 leaves only a single element to be chosen, namely 0.
        Parameters:
        upperBound -
        Returns:
        A uniformly random unsigned int.

      • randomBytesBuf

        byte[] randomBytesBuf​(int size)
        Get a random number of bytes.
        Parameters:
        size - The length of the byte array to return.
        Returns:
        Random byte array.

      • randomBytesDeterministic

        byte[] randomBytesDeterministic​(int size,
                                byte[] seed)
        Get deterministically random bytes given a seed.
        Parameters:
        size - Size of byte array to return.
        seed - Seed to provide.
        Returns:
        Deterministically random byte array.

      • nonce

        byte[] nonce​(int size)
        Get a random number of bytes to use in a nonce.
        Parameters:
        size - The size of the byte array to return.
        Returns:
        Random nonce array.
        See Also:
        randomBytesBuf(int)