Module preprocessing

Functions for performing the standard preprocessing steps before applying the SHA-2 algorithm

Functions

byte_padding

Merges groups of 8 bytes into 64 bit words We extend the length of the list of bytes by adding a 1 bit at the end and enough 0s such that we have a multiple of 64 bits

bytes_to_u64

custom_preprocessing

sha256_preprocessing

sha512_preprocessing

standard_preprocessing

string_to_encoding

word_padding

Packs 64 bit words into 512 bit blocks by padding the message with 0s and adding the suffix l (usually the length of the message) at the end of the final block.