Example usage for org.bouncycastle.jce.provider BouncyCastleProvider BouncyCastleProvider

List of usage examples for org.bouncycastle.jce.provider BouncyCastleProvider BouncyCastleProvider

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Introduction

In this page you can find the example usage for org.bouncycastle.jce.provider BouncyCastleProvider BouncyCastleProvider.

Prototype

public BouncyCastleProvider()

Source Link

Document

Construct a new provider.

Usage

From source file:crypto.util.hash.Hash.java

public String generateHash(File file, Boolean replace) throws FileNotFoundException, IOException {
    String hash = null;/* ww w.j  a  va2 s . c  o m*/
    //converting file to bytes
    FileInputStream fis = null;

    fis = new FileInputStream(file);

    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    byte[] buf = new byte[1024];

    for (int readNum; (readNum = fis.read(buf)) != -1;) {
        bos.write(buf, 0, readNum); //no doubt here is 0
    }

    byte[] bytes = bos.toByteArray();

    Security.addProvider(new BouncyCastleProvider());
    Digest messageDigestObj = new SHA1Digest();
    byte[] digest = new byte[messageDigestObj.getDigestSize()];
    messageDigestObj.update(bytes, 0, bytes.length);
    messageDigestObj.doFinal(digest, 0);
    hash = new String(Base64.encode(digest));

    if (replace) {
        hash = hash.replace("/", "").replace("=", "");
    }

    return hash;
}

From source file:crypto.util.hash.Hash.java

public String generateHash(String data, Boolean replace) {
    String hash = null;// w  w w  .jav  a2 s. c om
    Security.addProvider(new BouncyCastleProvider());
    Digest messageDigestObj = new SHA1Digest();
    byte[] digest = new byte[messageDigestObj.getDigestSize()];
    messageDigestObj.update(data.getBytes(), 0, data.getBytes().length);
    messageDigestObj.doFinal(digest, 0);

    hash = new String(Base64.encode(digest));

    if (replace) {
        hash = hash.replace("/", "").replace("=", "");
    }

    return hash;
}

From source file:crypto.util.hash.Hash.java

public String generateHashHex(String data) {

    String hash = null;/*from w w w .j a  v a2s  .co m*/
    Security.addProvider(new BouncyCastleProvider());
    Digest messageDigestObj = new SHA1Digest();
    byte[] digest = new byte[messageDigestObj.getDigestSize()];
    messageDigestObj.update(data.getBytes(), 0, data.getBytes().length);
    messageDigestObj.doFinal(digest, 0);

    hash = new String(Hex.encode(digest));

    return hash;
}

From source file:cryptoexplorer.Services.java

License:Apache License

@POST
@Path("/loadbc")
public String loadBC() {
    addProvider(new BouncyCastleProvider());
    return "ok";
}

From source file:cryptonite.Main.java

License:MIT License

/**
 * Initializes the Bouncy Castle Provider
 * @return true if the initialization suceeded
 *//*from   ww w. j  a v a  2 s  . com*/
static boolean initializeProvider() {

    Security.addProvider(new BouncyCastleProvider());
    return Security.getProvider(BOUNCY_CASTLE_PROVIDER) != null;
}

From source file:crypttools.PGPCryptoBC.java

License:Open Source License

public String signData(String data, String passphrase) throws Exception {
    Security.addProvider(new BouncyCastleProvider());
    InputStream keyInputStream = new ByteArrayInputStream(this.armoredSecretKey);
    PGPSecretKey pgpSecretKey = readSecretKey(keyInputStream);
    PGPPrivateKey pgpPrivateKey = pgpSecretKey.extractPrivateKey(
            new JcePBESecretKeyDecryptorBuilder().setProvider("BC").build(passphrase.toCharArray()));
    PGPSignatureGenerator signatureGenerator = new PGPSignatureGenerator(
            new JcaPGPContentSignerBuilder(pgpSecretKey.getPublicKey().getAlgorithm(), PGPUtil.SHA1)
                    .setProvider("BC"));
    signatureGenerator.init(PGPSignature.BINARY_DOCUMENT, pgpPrivateKey);

    @SuppressWarnings("unchecked")
    Iterator<String> it = pgpSecretKey.getPublicKey().getUserIDs();
    if (it.hasNext()) {
        PGPSignatureSubpacketGenerator spGen = new PGPSignatureSubpacketGenerator();
        spGen.setSignerUserID(false, it.next());
        signatureGenerator.setHashedSubpackets(spGen.generate());
    }//  www  . jav a2s.com
    ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();
    OutputStream outputStream = new ArmoredOutputStream(byteOutputStream);
    PGPCompressedDataGenerator compressDataGenerator = new PGPCompressedDataGenerator(PGPCompressedData.ZLIB);
    BCPGOutputStream bcOutputStream = new BCPGOutputStream(compressDataGenerator.open(outputStream));
    signatureGenerator.generateOnePassVersion(false).encode(bcOutputStream);

    PGPLiteralDataGenerator literalDataGenerator = new PGPLiteralDataGenerator();
    File fileToSign = File.createTempFile("temp", ".scrap");
    FileUtils.writeStringToFile(fileToSign, data);

    OutputStream literalDataGenOutputStream = literalDataGenerator.open(bcOutputStream, PGPLiteralData.BINARY,
            fileToSign);
    FileInputStream fis = new FileInputStream(fileToSign);
    int ch;
    while ((ch = fis.read()) >= 0) {
        literalDataGenOutputStream.write(ch);
        signatureGenerator.update((byte) ch);
    }

    literalDataGenerator.close();
    fis.close();

    signatureGenerator.generate().encode(bcOutputStream);
    compressDataGenerator.close();
    outputStream.close();

    fileToSign.delete();
    return new String(byteOutputStream.toByteArray(), "UTF-8");
}

From source file:crypttools.PGPCryptoBC.java

License:Open Source License

public boolean validateData(String data, String publicKey) throws Exception {
    Security.addProvider(new BouncyCastleProvider());
    File fileToVerify = File.createTempFile("temp", ".privateScrap");
    FileUtils.writeStringToFile(fileToVerify, data);

    File publicKeyFile = File.createTempFile("temp", ".publicScrap");
    // Creates an exception
    //        System.out.println(this.armoredPublicKey);
    //        String armoredKeyString = getPublicKey();
    //        System.out.println(armoredKeyString);
    FileUtils.writeStringToFile(publicKeyFile, publicKey);
    //FileUtils.writeStringToFile(publicKeyFile, new String(this.armoredPublicKey, "UTF-8"));

    try {// w  ww .  j a va  2  s.  c  om
        InputStream in = PGPUtil.getDecoderStream(new FileInputStream(fileToVerify));

        PGPObjectFactory pgpObjFactory = new PGPObjectFactory(in);
        PGPCompressedData compressedData = (PGPCompressedData) pgpObjFactory.nextObject();

        //Get the signature from the file

        pgpObjFactory = new PGPObjectFactory(compressedData.getDataStream());
        PGPOnePassSignatureList onePassSignatureList = (PGPOnePassSignatureList) pgpObjFactory.nextObject();
        PGPOnePassSignature onePassSignature = onePassSignatureList.get(0);

        //Get the literal data from the file

        PGPLiteralData pgpLiteralData = (PGPLiteralData) pgpObjFactory.nextObject();
        InputStream literalDataStream = pgpLiteralData.getInputStream();

        InputStream keyIn = new FileInputStream(publicKeyFile);
        PGPPublicKeyRingCollection pgpRing = new PGPPublicKeyRingCollection(PGPUtil.getDecoderStream(keyIn));
        PGPPublicKey key = pgpRing.getPublicKey(onePassSignature.getKeyID());

        FileOutputStream literalDataOutputStream = new FileOutputStream(pgpLiteralData.getFileName());
        onePassSignature.init(new JcaPGPContentVerifierBuilderProvider().setProvider("BC"), key);

        int ch;
        while ((ch = literalDataStream.read()) >= 0) {
            onePassSignature.update((byte) ch);
            literalDataOutputStream.write(ch);
        }

        literalDataOutputStream.close();

        //Get the signature from the written out file

        PGPSignatureList p3 = (PGPSignatureList) pgpObjFactory.nextObject();
        PGPSignature signature = p3.get(0);

        //Verify the two signatures
        boolean valid = onePassSignature.verify(signature);
        return valid;
    } catch (Exception e) {
        System.out.println("Got an Exception: " + e.getMessage());
        return false;
        //do something clever with the exception
    } finally {
        fileToVerify.delete();
        publicKeyFile.delete();
    }
}

From source file:crypttools.PGPCryptoBC.java

License:Open Source License

public String signDataDetached(String data, String passphrase) throws Exception {
    Security.addProvider(new BouncyCastleProvider());
    InputStream keyInputStream = new ByteArrayInputStream(this.armoredSecretKey);

    PGPSecretKey pgpSecretKey = readSecretKey(keyInputStream);
    PGPPrivateKey pgpPrivateKey = pgpSecretKey.extractPrivateKey(
            new JcePBESecretKeyDecryptorBuilder().setProvider("BC").build(passphrase.toCharArray()));
    PGPSignatureGenerator signatureGenerator = new PGPSignatureGenerator(
            new JcaPGPContentSignerBuilder(pgpSecretKey.getPublicKey().getAlgorithm(), PGPUtil.SHA1)
                    .setProvider("BC"));
    signatureGenerator.init(PGPSignature.BINARY_DOCUMENT, pgpPrivateKey);

    ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();
    OutputStream outputStream = new ArmoredOutputStream(byteOutputStream);
    BCPGOutputStream bOut = new BCPGOutputStream(outputStream);

    InputStream fIn = IOUtils.toInputStream(data, "UTF-8");
    int ch;/*  w  ww .jav a  2s  .co  m*/
    while ((ch = fIn.read()) >= 0) {
        signatureGenerator.update((byte) ch);
    }

    fIn.close();

    signatureGenerator.generate().encode(bOut);

    outputStream.close();
    keyInputStream.close();

    return new String(byteOutputStream.toByteArray(), "UTF-8");
}

From source file:crypttools.PGPCryptoBC.java

License:Open Source License

public boolean verifyFileDetached(String data, String signature, String publicKey) throws Exception {
    Security.addProvider(new BouncyCastleProvider());

    InputStream keyInputStream = new BufferedInputStream(IOUtils.toInputStream(publicKey, "UTF-8"));
    InputStream sigInputStream = PGPUtil
            .getDecoderStream(new BufferedInputStream(IOUtils.toInputStream(signature, "UTF-8")));

    PGPObjectFactory pgpObjFactory = new PGPObjectFactory(sigInputStream);
    PGPSignatureList pgpSigList = null;/*from  w  ww .j  ava  2  s. c  o m*/

    Object obj = pgpObjFactory.nextObject();
    if (obj instanceof PGPCompressedData) {
        PGPCompressedData c1 = (PGPCompressedData) obj;
        pgpObjFactory = new PGPObjectFactory(c1.getDataStream());
        pgpSigList = (PGPSignatureList) pgpObjFactory.nextObject();
    } else {
        pgpSigList = (PGPSignatureList) obj;
    }

    PGPPublicKeyRingCollection pgpPubRingCollection = new PGPPublicKeyRingCollection(
            PGPUtil.getDecoderStream(keyInputStream));
    InputStream fileInputStream = new BufferedInputStream(IOUtils.toInputStream(data, "UTF-8"));
    PGPSignature sig = pgpSigList.get(0);
    PGPPublicKey pubKey = pgpPubRingCollection.getPublicKey(sig.getKeyID());
    sig.init(new JcaPGPContentVerifierBuilderProvider().setProvider("BC"), pubKey);

    int ch;
    while ((ch = fileInputStream.read()) >= 0) {
        sig.update((byte) ch);
    }

    fileInputStream.close();
    keyInputStream.close();
    sigInputStream.close();

    if (sig.verify()) {
        return true;
    } else {
        return false;
    }
}

From source file:cvc.TestCVCertificate.java

License:Open Source License

protected void setUp() throws Exception {
    // Install Bouncy Castle as security provider 
    Security.addProvider(new BouncyCastleProvider());
}