secureRandomBytes

Generate a securely random ByteArray of requested number of bytes. Usually used for seeds, nonces and keys.

Parameters

numOfBytes - how many random bytes to output.

Exceptions

NoSuchAlgorithmException - thrown if "NativePRNGNonBlocking" is not supported on the JVM or if no strong SecureRandom implementations are available or if Security.getProperty("securerandom.strongAlgorithms") is null or empty, which should never happen and suggests an unusual JVM or non-standard Java library.

Return
a random ByteArray.