# Poco

# class MD4Engine

Library: Foundation
Package: Crypt
Header: Poco/MD4Engine.h

## Description

This class implements the MD4 message digest algorithm, described in RFC 1320.

## Inheritance

Direct Base Classes: DigestEngine

All Base Classes: DigestEngine

## Member Summary

Member Functions: digest, digestLength, reset, updateImpl

Inherited Functions: constantTimeEquals, digest, digestFromHex, digestLength, digestToHex, reset, update, updateImpl

## Enumerations

### Anonymous

BLOCK_SIZE = 64

DIGEST_SIZE = 16

## Constructors

### MD4Engine

MD4Engine();

## Destructor

### ~MD4Engine

~MD4Engine() override;

## Member Functions

### digest

const DigestEngine::Digest & digest() override;

### digestLength

std::size_t digestLength() const override;

See also: Poco::DigestEngine::digestLength()

### reset

void reset() override;

See also: Poco::DigestEngine::reset()

### updateImpl

void updateImpl(
const void * data,
std::size_t length
) override;

See also: Poco::DigestEngine::updateImpl()