import java.security.Provider;

import javax.crypto.Cipher;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.SecretKeySpec;

import org.bouncycastle.jce.provider.BouncyCastleProvider;

import jcifs.CIFSUnsupportedCryptoException;


/**
 * @author mbechler
 *
 */
public final class Crypto {

    private static Provider provider = null;


    /**
     * 

 */
package jcifs.smb;


import java.security.GeneralSecurityException;
import java.security.MessageDigest;

import javax.crypto.Cipher;
import javax.crypto.ShortBufferException;

import jcifs.CIFSContext;
import jcifs.util.Crypto;
import jcifs.util.Encdec;
import jcifs.util.Strings;


/**
 * Internal use only
 * 
 * @author mbechler
 * @internal
 */

        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;

import java.util.Enumeration;
import java.util.List;
import java.util.Map;

import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.Mac;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import javax.security.auth.kerberos.KerberosKey;

 */
package jcifs.internal.smb2;


import java.nio.charset.StandardCharsets;

import org.bouncycastle.crypto.DerivationParameters;
import org.bouncycastle.crypto.digests.SHA256Digest;
import org.bouncycastle.crypto.generators.KDFCounterBytesGenerator;
import org.bouncycastle.crypto.macs.HMac;
import org.bouncycastle.crypto.params.KDFCounterParameters;


/**
 * SMB3 SP800-108 Counter Mode Key Derivation
 * 
 * @author mbechler

import java.security.GeneralSecurityException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;
import java.util.Locale;

import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import javax.security.auth.kerberos.KerberosKey;
import javax.security.auth.kerberos.KerberosPrincipal;
import javax.security.auth.kerberos.KeyTab;

import jcifs.pac.Pac;

        this.sealClientKey = deriveKey(mk, C2S_SEAL_CONSTANT);
        this.sealClientHandle = Crypto.getArcfour(this.sealClientKey);
        if ( log.isDebugEnabled() ) {
            log.debug("Seal key is " + Hexdump.toHexString(this.sealClientKey));
        }

        this.sealServerKey = deriveKey(mk, S2C_SEAL_CONSTANT);
        this.sealServerHandle = Crypto.getArcfour(this.sealServerKey);

        if ( log.isDebugEnabled() ) {

import java.security.GeneralSecurityException;
import java.security.Key;
import java.security.MessageDigest;
import java.util.Arrays;
import java.util.Map;

import javax.crypto.Cipher;
import javax.crypto.Mac;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import javax.security.auth.kerberos.KerberosKey;


@SuppressWarnings ( "javadoc" )
public class PacMac {

    /**
     * 
     */

import com.google.common.collect.Table;
import com.google.common.testing.NullPointerTester;
import java.security.Key;
import java.util.Arrays;
import javax.crypto.Mac;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;
import sun.security.jca.ProviderList;
import sun.security.jca.Providers;

import org.apache.maven.settings.Server;
import org.apache.maven.settings.building.SettingsProblem;
import org.apache.maven.settings.crypto.DefaultSettingsDecryptionRequest;
import org.apache.maven.settings.crypto.SettingsDecrypter;
import org.apache.maven.settings.crypto.SettingsDecryptionRequest;
import org.apache.maven.settings.crypto.SettingsDecryptionResult;
import org.apache.maven.wagon.proxy.ProxyInfo;
import org.apache.maven.wagon.proxy.ProxyUtils;