0
я использую GPG4Win для шифрования файла, а затем BouncyCastle для Расшифровать файл, но код не работаетJAVA: - PGP Дешифровка с помощью BouncyCastle тех шифруется GPG4win Kleopatra
Предположим, я использую BouncyCastle код Зашифровать файл, а затем использовать BouncyCastle код дешифрования, способный расшифровать файл, и GPG4win также может расшифровать файл. весь код в Java
предположим, что файл шифруется BouncyCastle его расшифровка по GPG4win и BouncyCastle
org.bouncycastle.openpgp.PGPException: Exception starting decryption
at org.bouncycastle.openpgp.PGPPublicKeyEncryptedData.getDataStream(Unknown Source)
at org.bouncycastle.openpgp.PGPPublicKeyEncryptedData.getDataStream(Unknown Source)
at org.bouncycastle.openpgp.PGPPublicKeyEncryptedData.getDataStream(Unknown Source)
at com.pgp.util.KeyBasedFileProcessorUtil.decryptFile(KeyBasedFileProcessorUtil.java:183)
at com.pgp.encrypt.PGPDecryption.main(PGPDecryption.java:49)
Caused by: java.security.InvalidKeyException: Illegal key size
at javax.crypto.Cipher.a(DashoA13*..)
at javax.crypto.Cipher.init(DashoA13*..)
at javax.crypto.Cipher.init(DashoA13*..)
... 5 more
org.bouncycastle.openpgp.PGPException: Exception starting decryption
java.security.InvalidKeyException: Illegal key size
at javax.crypto.Cipher.a(DashoA13*..)
at javax.crypto.Cipher.init(DashoA13*..)
at javax.crypto.Cipher.init(DashoA13*..)
at org.bouncycastle.openpgp.PGPPublicKeyEncryptedData.getDataStream(Unknown Source)
at org.bouncycastle.openpgp.PGPPublicKeyEncryptedData.getDataStream(Unknown Source)
at org.bouncycastle.openpgp.PGPPublicKeyEncryptedData.getDataStream(Unknown Source)
at com.pgp.util.KeyBasedFileProcessorUtil.decryptFile(KeyBasedFileProcessorUtil.java:183)
at com.pgp.encrypt.PGPDecryption.main(PGPDecryption.java:49)
мой код
import org.bouncycastle.bcpg.ArmoredOutputStream;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.bouncycastle.openpgp.PGPCompressedData;
import org.bouncycastle.openpgp.PGPCompressedDataGenerator;
import org.bouncycastle.openpgp.PGPEncryptedData;
import org.bouncycastle.openpgp.PGPEncryptedDataGenerator;
import org.bouncycastle.openpgp.PGPEncryptedDataList;
import org.bouncycastle.openpgp.PGPException;
import org.bouncycastle.openpgp.PGPLiteralData;
import org.bouncycastle.openpgp.PGPObjectFactory;
import org.bouncycastle.openpgp.PGPOnePassSignatureList;
import org.bouncycastle.openpgp.PGPPrivateKey;
import org.bouncycastle.openpgp.PGPPublicKey;
import org.bouncycastle.openpgp.PGPPublicKeyEncryptedData;
import org.bouncycastle.openpgp.PGPPublicKeyRing;
import org.bouncycastle.openpgp.PGPPublicKeyRingCollection;
import org.bouncycastle.openpgp.PGPSecretKey;
import org.bouncycastle.openpgp.PGPSecretKeyRingCollection;
import org.bouncycastle.openpgp.PGPUtil;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.security.NoSuchProviderException;
import java.security.SecureRandom;
import java.security.Security;
import java.util.Iterator;
import java.io.*;
/**
* A simple utility class that encrypts/decrypts public key based
* encryption files.
* <p>
* To encrypt a file: KeyBasedFileProcessor -e [-a|-ai] fileName publicKeyFile.<br>
* If -a is specified the output file will be "ascii-armored".
* If -i is specified the output file will be have integrity checking added.
* <p>
* To decrypt: KeyBasedFileProcessor -d fileName secretKeyFile passPhrase.
* <p>
* Note 1: this example will silently overwrite files, nor does it pay any attention to
* the specification of "_CONSOLE" in the filename. It also expects that a single pass phrase
* will have been used.
* <p>
* Note 2: if an empty file name has been specified in the literal data object contained in the
* encrypted packet a file with the name filename.out will be generated in the current working directory.
*/
public class KeyBasedFileProcessorUtil
{
/**
* A simple routine that opens a key ring file and loads the first available key suitable for
* encryption.
*
* @param in
* @return
* @throws IOException
* @throws PGPException
*/
public static PGPPublicKey readPublicKey(
InputStream in)
throws IOException, PGPException
{
in = PGPUtil.getDecoderStream(in);
PGPPublicKeyRingCollection pgpPub = new PGPPublicKeyRingCollection(in);
//
// we just loop through the collection till we find a key suitable for encryption, in the real
// world you would probably want to be a bit smarter about this.
//
//
// iterate through the key rings.
//
Iterator rIt = pgpPub.getKeyRings();
while (rIt.hasNext())
{
PGPPublicKeyRing kRing = (PGPPublicKeyRing)rIt.next();
Iterator kIt = kRing.getPublicKeys();
while (kIt.hasNext())
{
PGPPublicKey k = (PGPPublicKey)kIt.next();
if (k.isEncryptionKey())
{
return k;
}
}
}
throw new IllegalArgumentException("Can't find encryption key in key ring.");
}
/**
* Search a secret key ring collection for a secret key corresponding to
* keyID if it exists.
*
* @param pgpSec a secret key ring collection.
* @param keyID keyID we want.
* @param pass passphrase to decrypt secret key with.
* @return
* @throws PGPException
* @throws NoSuchProviderException
*/
public static PGPPrivateKey findSecretKey(
PGPSecretKeyRingCollection pgpSec,
long keyID,
char[] pass)
throws PGPException, NoSuchProviderException
{
PGPSecretKey pgpSecKey = pgpSec.getSecretKey(keyID);
if (pgpSecKey == null)
{
return null;
}
return pgpSecKey.extractPrivateKey(pass, "BC");
}
/**
* decrypt the passed in message stream
*/
public static void decryptFile(
InputStream in,
InputStream keyIn,
char[] passwd,
String defaultFileName)
throws Exception
{
System.out.println("File Decrypting");
System.out.println("File absulatePath :-");
in = PGPUtil.getDecoderStream(in);
try
{
PGPObjectFactory pgpF = new PGPObjectFactory(in);
PGPEncryptedDataList enc;
Object o = pgpF.nextObject();
//
// the first object might be a PGP marker packet.
//
if (o instanceof PGPEncryptedDataList)
{
enc = (PGPEncryptedDataList)o;
}
else
{
enc = (PGPEncryptedDataList)pgpF.nextObject();
}
//
// find the secret key
//
System.out.println("find the secret key");
Iterator it = enc.getEncryptedDataObjects();
PGPPrivateKey sKey = null;
PGPPublicKeyEncryptedData pbe = null;
PGPSecretKeyRingCollection pgpSec = new PGPSecretKeyRingCollection(
PGPUtil.getDecoderStream(keyIn));
while (sKey == null && it.hasNext())
{
pbe = (PGPPublicKeyEncryptedData)it.next();
sKey = findSecretKey(pgpSec, pbe.getKeyID(), passwd);
}
if (sKey == null)
{
System.out.println("--------------------");
System.out.println("secret key for message not found.");
throw new IllegalArgumentException("secret key for message not found.");
}
System.out.println("secret key for message found.");
InputStream clear = pbe.getDataStream(sKey, "BC");
PGPObjectFactory plainFact = new PGPObjectFactory(clear);
Object message = plainFact.nextObject();
if (message instanceof PGPCompressedData)
{
PGPCompressedData cData = (PGPCompressedData)message;
PGPObjectFactory pgpFact = new PGPObjectFactory(cData.getDataStream());
message = pgpFact.nextObject();
}
if (message instanceof PGPLiteralData)
{
PGPLiteralData ld = (PGPLiteralData)message;
String outFileName = ld.getFileName();
if (ld.getFileName().length() == 0)
{
outFileName = defaultFileName;
}
InputStream unc = ld.getInputStream();
int ch;
while ((ch = unc.read()) >= 0)
{
fOut.write(ch);
}
}
else if (message instanceof PGPOnePassSignatureList)
{
System.out.println("encrypted message contains a signed message - not literal data.");
throw new PGPException("encrypted message contains a signed message - not literal data.");
}
else
{
throw new PGPException("message is not a simple encrypted file - type unknown.");
}
if (pbe.isIntegrityProtected())
{
if (!pbe.verify())
{
System.err.println("message failed integrity check");
}
else
{
System.err.println("message integrity check passed");
}
}
else
{
System.err.println("no message integrity check");
}
}
catch (PGPException e)
{
e.printStackTrace();
System.err.println(e);
if (e.getUnderlyingException() != null)
{
e.getUnderlyingException().printStackTrace();
}
}
}
/*
private static void decryptFile(
InputStream in,
InputStream keyIn,
char[] passwd)
throws Exception
{
in = PGPUtil.getDecoderStream(in);
try
{
PGPObjectFactory pgpF = new PGPObjectFactory(in);
PGPEncryptedDataList enc;
Object o = pgpF.nextObject();
//
// the first object might be a PGP marker packet.
//
if (o instanceof PGPEncryptedDataList)
{
enc = (PGPEncryptedDataList)o;
}
else
{
enc = (PGPEncryptedDataList)pgpF.nextObject();
}
//
// find the secret key
//
Iterator it = enc.getEncryptedDataObjects();
PGPPrivateKey sKey = null;
PGPPublicKeyEncryptedData pbe = null;
while (sKey == null && it.hasNext())
{
pbe = (PGPPublicKeyEncryptedData)it.next();
sKey = findSecretKey(keyIn, pbe.getKeyID(), passwd);
}
if (sKey == null)
{
throw new IllegalArgumentException("secret key for message not found.");
}
InputStream clear = pbe.getDataStream(sKey, "BC");
PGPObjectFactory plainFact = new PGPObjectFactory(clear);
PGPCompressedData cData = (PGPCompressedData)plainFact.nextObject();
InputStream compressedStream = new BufferedInputStream(cData.getDataStream());
PGPObjectFactory pgpFact = new PGPObjectFactory(compressedStream);
Object message = pgpFact.nextObject();
if (message instanceof PGPLiteralData)
{
PGPLiteralData ld = (PGPLiteralData)message;
FileOutputStream fOut = new FileOutputStream(ld.getFileName());
BufferedOutputStream bOut = new BufferedOutputStream(fOut);
InputStream unc = ld.getInputStream();
int ch;
while ((ch = unc.read()) >= 0)
{
bOut.write(ch);
}
bOut.close();
}
else if (message instanceof PGPOnePassSignatureList)
{
throw new PGPException("encrypted message contains a signed message - not literal data.");
}
else
{
throw new PGPException("message is not a simple encrypted file - type unknown.");
}
if (pbe.isIntegrityProtected())
{
if (!pbe.verify())
{
System.err.println("message failed integrity check");
}
else
{
System.err.println("message integrity check passed");
}
}
else
{
System.err.println("no message integrity check");
}
}
catch (PGPException e)
{
System.err.println(e);
if (e.getUnderlyingException() != null)
{
e.getUnderlyingException().printStackTrace();
}
}
}
*/
public static void encryptFile(
OutputStream out,
String fileName,
PGPPublicKey encKey,
boolean armor,
boolean withIntegrityCheck)
throws IOException, NoSuchProviderException
{
if (armor)
{
out = new ArmoredOutputStream(out);
}
try
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
PGPCompressedDataGenerator comData = new PGPCompressedDataGenerator(1);
PGPUtil.writeFileToLiteralData(comData.open(bOut), PGPLiteralData.BINARY, new File(fileName));
comData.close();
PGPEncryptedDataGenerator cPk = new PGPEncryptedDataGenerator(PGPEncryptedData.CAST5, withIntegrityCheck, new SecureRandom(), "BC");
cPk.addMethod(encKey);
byte[] bytes = bOut.toByteArray();
OutputStream cOut = cPk.open(out, bytes.length);
cOut.write(bytes);
cOut.close();
out.close();
}
catch (PGPException e)
{
System.err.println(e);
if (e.getUnderlyingException() != null)
{
e.getUnderlyingException().printStackTrace();
}
}
}
public static void encryptFile1(
OutputStream out,
String fileName,
PGPPrivateKey encKey,
boolean armor,
boolean withIntegrityCheck)
throws IOException, NoSuchProviderException
{
if (armor)
{
out = new ArmoredOutputStream(out);
}
try
{
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
PGPCompressedDataGenerator comData = new PGPCompressedDataGenerator(1);
PGPUtil.writeFileToLiteralData(comData.open(bOut), PGPLiteralData.BINARY, new File(fileName));
comData.close();
PGPEncryptedDataGenerator cPk = new PGPEncryptedDataGenerator(PGPEncryptedData.CAST5, withIntegrityCheck, new SecureRandom(), "BC");
cPk.addMethod((PGPPublicKey) encKey.getKey());
byte[] bytes = bOut.toByteArray();
OutputStream cOut = cPk.open(out, bytes.length);
cOut.write(bytes);
cOut.close();
out.close();
}
catch (PGPException e)
{
System.err.println(e);
if (e.getUnderlyingException() != null)
{
e.getUnderlyingException().printStackTrace();
}
}
}
}
дешифрование classs
public class PGPDecryption {
/**
*
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Properties prop=new Properties();
try {
prop.load(new FileInputStream("config.prop"));
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
FileInputStream keyOut=null;
FileOutputStream out =null;
Security.addProvider(new BouncyCastleProvider());
try {
System.out.println(prop.getProperty(Constant.PRIVATE_KEY));
keyOut = new FileInputStream(prop.getProperty(Constant.PRIVATE_KEY));
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
KeyBasedFileProcessorUtil.decryptFile(new FileInputStream(prop.getProperty(Constant.ENCRYPT_FILE_PATH)), keyOut, prop.getProperty(Constant.PRIVATE_FILE_PASS).toCharArray(), prop.getProperty(Constant.DECRYPT_FILE_OUTPUT_PATH));
System.out.println("Decrypted File created with name of "+prop.getProperty(Constant.DECRYPT_FILE_OUTPUT_PATH));
} catch (NoSuchProviderException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
шифрования класса
public class PGPEncryption {
public static void main(String[] args) {
// TODO Auto-generated method stub
Properties prop=new Properties();
try {
File f=new File("config.prop");
System.out.println(f.getAbsolutePath());
prop.load(new FileInputStream(f));
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
FileInputStream keyIn=null;
FileOutputStream out =null;
Security.addProvider(new BouncyCastleProvider());
try {
System.out.println(prop.getProperty(Constant.PUBLIC_KEY));
keyIn = new FileInputStream(prop.getProperty(Constant.PUBLIC_KEY));
System.out.println("Encrypt File Path :-"+prop.getProperty(Constant.ENCRYPT_FILE_PATH));
out= new FileOutputStream(new File(prop.getProperty(Constant.ENCRYPT_FILE_PATH)));
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
boolean armor = false;
boolean integrityCheck = false;
PGPPublicKey pubKey = null;
try {
System.out.println("Reading public key.........");
pubKey = KeyBasedFileProcessorUtil.readPublicKey(keyIn);
System.out.println("Public Key found...........");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (PGPException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
System.out.println("File Encrypting............");
KeyBasedFileProcessorUtil.encryptFile(out, prop.getProperty(Constant.SOURCE_FILE_PATH), pubKey, armor, integrityCheck);
System.out.println("Encrypted File created with name of "+prop.getProperty(Constant.ENCRYPT_FILE_PATH));
} catch (NoSuchProviderException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
, пожалуйста, помогите мне, я хочу, чтобы расшифровать файл шифруется с помощью тех GPG4win
Просьбы предоставить более подробную информацию и код, продуцирующее исключение. Как и на ваш вопрос, нельзя ответить. Прочтите [как отправить SSCCE] (http://www.sscce.org) для получения дополнительной информации. –
Ошибка указана в вашем коде, на линии 191. –
спасибо, что ответ, пожалуйста, вы можете мне объяснить, что такое ошибка? и как решить? –