this.digest = Crypto.getMD5();
        this.macSigningKey = macSigningKey;
    }


    /**
     * Construct a digest with a non-zero starting sequence number
     * 
     * @param macSigningKey
     * @param initialSequence
     */
    public SMB1SigningDigest ( byte[] macSigningKey, int initialSequence ) {
        this.digest = Crypto.getMD5();
        this.macSigningKey = macSigningKey;

        super(server, file, repositoryPath, bucket)
    }

    @Override
    String getName() {
        return file.name
    }

    @Override
    S3Resource getMd5() {
        return new S3Resource(server, file.parentFile.file(file.name + ".md5"), repositoryPath, bucket)
    }

    @Override
    S3Resource getSha1() {

 */

package org.gradle.test.fixtures.resource;

import org.gradle.test.fixtures.ModuleArtifact;

public interface RemoteArtifact extends RemoteResource, ModuleArtifact {
    RemoteResource getMd5();

    RemoteResource getSha1();

    RemoteResource getSha256();

    RemoteResource getSha512();

public class SftpArtifact extends SftpResource implements RemoteArtifact {
    public SftpArtifact(SFTPServer server, TestFile file) {
        super(server, file);
    }

    @Override
    public SftpResource getMd5() {
        return new SftpResource(getServer(), getFile().getParentFile().file(getFile().getName() + ".md5"));
    }

    @Override
    public SftpResource getSha1() {

    String modulePath

    public HttpArtifact(HttpServer server, String modulePath) {
        super(server)
        this.modulePath = modulePath
    }

    @Override
    HttpResource getMd5() {
        return new BasicHttpResource(server, getMd5File(), "${path}.md5")
    }

    @Override
    HttpResource getSha1() {
        return new BasicHttpResource(server, getSha1File(), "${path}.sha1")
    }

        super(server, file, repositoryPath, bucket)
    }

    @Override
    String getName() {
        return file.name
    }

    @Override
    GcsResource getMd5() {
        return new GcsResource(server, file.parentFile.file(file.name + ".md5"), repositoryPath, bucket)
    }

    @Override
    GcsResource getSha1() {

     */
    public static MessageDigest getMD4 () {
        try {
            return MessageDigest.getInstance("MD4", getProvider());
        }
        catch ( NoSuchAlgorithmException e ) {
            throw new CIFSUnsupportedCryptoException(e);
        }
    }


    /**
     * 
     * @return MD5 digest
     */
    public static MessageDigest getMD5 () {
        try {

        }
        for ( int i = length; i < BLOCK_LENGTH; i++ ) {
            this.ipad[ i ] = IPAD;
            this.opad[ i ] = OPAD;
        }

        this.md5 = Crypto.getMD5();
        engineReset();
    }


    private HMACT64 ( HMACT64 hmac ) throws CloneNotSupportedException {
        super("HMACT64");
        this.ipad = hmac.ipad;
        this.opad = hmac.opad;

    public static byte[] getNTLM2Response ( byte[] passwordHash, byte[] serverChallenge, byte[] clientChallenge ) throws GeneralSecurityException {
        byte[] sessionHash = new byte[8];

        MessageDigest md5 = Crypto.getMD5();;
        md5.update(serverChallenge);
        md5.update(clientChallenge, 0, 8);
        System.arraycopy(md5.digest(), 0, sessionHash, 0, 8);

        byte[] key = new byte[21];

            log.debug("Server seal key is " + Hexdump.toHexString(this.sealServerKey));
        }
    }


    private static byte[] deriveKey ( byte[] masterKey, String cnst ) {
        MessageDigest md5 = Crypto.getMD5();
        md5.update(masterKey);
        md5.update(cnst.getBytes(StandardCharsets.US_ASCII));
        md5.update((byte) 0);
        return md5.digest();
    }


    @Override