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J'utilise Gpg4win pour crypter le fichier, puis BouncyCastle pour le fichier Décrypter mais le code ne fonctionne pasJAVA: - PGP Décryptage en utilisant BouncyCastle ceux chiffrés par Gpg4win Kleopatra
suppose que j'utiliser le code BouncyCastle pour le fichier Crypter puis utilisez BouncyCastle code de déchiffrement est capable de déchiffrer le fichier et GPG4win également capable de déchiffrer le fichier. tout le code en Java
fichier On suppose queest crypté par BouncyCastle son décryptage par Gpg4win et 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)
mon code est
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();
}
}
}
}
Décryptage 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();
}
}
}
classe de cryptage
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();
}
}
}
s'il vous plaît aidez-moi je veux décrypter le fichier crypté par ceux Gpg4win
S'il vous plaît fournir plus de détails et le code produisant l'exception. En l'état, votre question ne peut pas être répondue. Lisez [comment publier un SSCCE] (http://www.sscce.org) pour plus de détails. –
Le bug est dans votre code, à la ligne 191. –
merci pour la réponse, s'il vous plaît pouvez-vous m'expliquer en fait, ce qui est bug? et comment résoudre? –