The SURF random number generator was taken djbdns-1.05, by Daniel J Bernstein, which is public domain. -The SURF random number generator was taken djbdns-1.05, by Daniel J Bernstein, which is public domain.

The SURF random number generator was taken djbdns-1.05, by Daniel J Bernstein, which is public domain. -The SURF random number generator was taken djbdns-1.05, by Daniel J Bernstein, which is public domain.

The SURF random number generator was taken djbdns-1.05, by Daniel J Bernstein, which is public domain. -The SURF random number generator was taken djbdns-1.05, by Daniel J Bernstein, which is public domain.

BLAKE2 are cryptographic hash functions based on Dan Bernstein s Cha stream cipher, but a permuted copy of the input block, XORed with some round constants, is added before each Cha round. Like SHA-2, there are two variants differing in the word size