ddn.crypto.hash.sha

SHA-1 and SHA-2 hash implementations.

This module provides SHA-1 (legacy) and SHA-2 (SHA-256, SHA-384, SHA-512) hash implementations. SHA-1 is deprecated and should not be used for security-critical purposes; SHA-256 and SHA-512 are recommended for all new code.

alias SHA3_224Digest SHA3_256Digest SHA3_384Digest SHA3_512Digest

class SHA1Digest SHA256Digest SHA384Digest SHA3Digest SHA512Digest

Types 9

classSHA1Digest : Hash

SHA-1 secure hash algorithm (RFC 3174).

DEPRECATED — Do not use for security-critical purposes.

SHA-1 is no longer considered collision-resistant. NIST deprecated it in 2011, and practical collision attacks have been demonstrated since 2017 (SHAttered). SHA-1 must not be used for digital signatures, certificate generation, or any application that relies on collision resistance.

Acceptable legacy uses include HMAC construction (where collision resistance of the underlying hash is not required), non-security checksums, and compatibility with existing protocols that mandate SHA-1. Even in those cases, consider migrating to SHA-256 at the earliest opportunity.

See Also

SHA256Digest, SHA512Digest

Fields

private uint[5] _state

private ulong _count

private ubyte[64] _buffer

Methods

Hash update(const(ubyte)[] input)

ubyte[] finish()

void reset()

size_t blockSize() @property const

size_t size() @property const

private void transform(const(ubyte)[] block)

private uint rotateLeft(uint x, uint n) pure nothrow @nogc

Constructors

this()

classSHA256Digest : Hash

SHA-256 implementation (FIPS 180-4).

Fields

private uint[8] _state

private ulong _count

private ubyte[64] _buffer

private uint[64] K

Methods

void reset()

Hash update(const(ubyte)[] input)

ubyte[] finish()

size_t blockSize() @property const

size_t size() @property const

private void transform(const(ubyte)[] block)

private uint rotateRight(uint x, uint n) pure nothrow @nogc

Constructors

this()

classSHA512Digest : Hash

SHA-512 implementation (FIPS 180-4).

Fields

private ulong[8] _state

private ulong[2] _count

private ubyte[128] _buffer

private ulong[80] K

Methods

void reset()

Hash update(const(ubyte)[] input)

ubyte[] finish()

size_t blockSize() @property const

size_t size() @property const

private void transform(const(ubyte)[] block)

private ulong rotateRight(ulong x, uint n)

Constructors

this()

classSHA384Digest : Hash

SHA-384 implementation (FIPS 180-4).

SHA-384 uses the same algorithm as SHA-512 but with different initial values and the output is truncated to 48 bytes.

Fields

private ulong[8] _state

private ulong[2] _count

private ubyte[128] _buffer

private ulong[80] K

Methods

void reset()

Hash update(const(ubyte)[] input)

ubyte[] finish()

size_t blockSize() @property const

size_t size() @property const

private void transform(const(ubyte)[] block)

private ulong rotateRight(ulong x, uint n)

Constructors

this()

classSHA3Digest(int bits) : Hash

SHA-3 (Keccak) Digest Implementation.

Fields

private ulong[25] _state

private ubyte[] _buffer

private size_t _rateBytes

private size_t _outputBytes

private size_t _byteIndex

private ulong[24] RC

private int[5][5] RHO_OFFSETS

Methods

void reset()

Hash update(const(ubyte)[] input)

ubyte[] finish()

size_t blockSize() @property const

size_t size() @property const

private void processBlock(const(ubyte)[] block)

private void keccakF1600(ref ulong[25] A) pure nothrow @nogc

private ulong rotl64(ulong x, int n) pure nothrow @nogc

Constructors

this()

aliasSHA3_224Digest = SHA3Digest!(224)

SHA3-224

aliasSHA3_256Digest = SHA3Digest!(256)

SHA3-256

aliasSHA3_384Digest = SHA3Digest!(384)

SHA3-384

aliasSHA3_512Digest = SHA3Digest!(512)

SHA3-512