std::digest

Checksums and hashes of bytes: CRC-32, 64-bit FNV-1a and SHA-256.

Source: std/digest.volt

Types

struct sha256

SHA-256 (FIPS 180-4), fed in pieces: update with each, then finish for the 32-byte digest. Make one with sha256::new()

Field
`h: u32[8]`	the state
`block: u8[64]`	bytes waiting for a whole block
`filled: usize`	how many of block are in use
`total: u64`	bytes taken so far

attach fn new(static this: std::digest::sha256) -> std::digest::sha256

a SHA-256 hasher with nothing fed in yet

attach fn update(this: std::digest::sha256&, data: u8[..]) -> void

feed data in

attach fn update(this: std::digest::sha256&, text: str) -> void

attach fn finish(this: std::digest::sha256&) -> u8[32]

the digest of everything fed in (the hasher is used up: make a new one for more)

std::digest::crc32

fn crc32(data: u8[..]) -> u32

the CRC-32 of data, as zip, gzip and PNG compute it ("123456789" gives cbf43926)

std::digest::crc32

fn crc32(text: str) -> u32

std::digest::fnv1a

fn fnv1a(data: u8[..]) -> u64

the 64-bit FNV-1a hash of data: fast and simple, for hash tables and fingerprints (not for anything an attacker controls)

std::digest::fnv1a

fn fnv1a(text: str) -> u64

std::digest::sha256_of

fn sha256_of(data: u8[..]) -> u8[32]

the digest of data in one call

std::digest::sha256_of

fn sha256_of(text: str) -> u8[32]