Example usage for org.bouncycastle.asn1 ASN1InputStream ASN1InputStream

Introduction

In this page you can find the example usage for org.bouncycastle.asn1 ASN1InputStream ASN1InputStream.

Prototype

public ASN1InputStream(byte[] input) 

Source Link

Document

Create an ASN1InputStream based on the input byte array.

Usage

From source file:com.android.signapk.SignApk.java

License:Apache License

/** Read a PKCS#8 format private key. */
private static PrivateKey readPrivateKey(File file) throws IOException, GeneralSecurityException {
    DataInputStream input = new DataInputStream(new FileInputStream(file));
    try {/*  w  w  w  . j av  a2  s. c o m*/
        byte[] bytes = new byte[(int) file.length()];
        input.read(bytes);

        /* Check to see if this is in an EncryptedPrivateKeyInfo structure. */
        PKCS8EncodedKeySpec spec = decryptPrivateKey(bytes, file);
        if (spec == null) {
            spec = new PKCS8EncodedKeySpec(bytes);
        }

        /*
         * Now it's in a PKCS#8 PrivateKeyInfo structure. Read its Algorithm
         * OID and use that to construct a KeyFactory.
         */
        ASN1InputStream bIn = new ASN1InputStream(new ByteArrayInputStream(spec.getEncoded()));
        PrivateKeyInfo pki = PrivateKeyInfo.getInstance(bIn.readObject());
        String algOid = pki.getPrivateKeyAlgorithm().getAlgorithm().getId();

        return KeyFactory.getInstance(algOid).generatePrivate(spec);
    } finally {
        input.close();
    }
}

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From source file:com.android.signapk.SignApk.java

License:Apache License

/** Sign data and write the digital signature to 'out'. */
private static void writeSignatureBlock(CMSTypedData data, X509Certificate publicKey, PrivateKey privateKey,
        OutputStream out)//from  w w  w. j a va2  s.  c  o  m
        throws IOException, CertificateEncodingException, OperatorCreationException, CMSException {
    ArrayList<X509Certificate> certList = new ArrayList<X509Certificate>(1);
    certList.add(publicKey);
    JcaCertStore certs = new JcaCertStore(certList);

    CMSSignedDataGenerator gen = new CMSSignedDataGenerator();
    ContentSigner signer = new JcaContentSignerBuilder(getSignatureAlgorithm(publicKey))
            .setProvider(sBouncyCastleProvider).build(privateKey);
    gen.addSignerInfoGenerator(new JcaSignerInfoGeneratorBuilder(
            new JcaDigestCalculatorProviderBuilder().setProvider(sBouncyCastleProvider).build())
                    .setDirectSignature(true).build(signer, publicKey));
    gen.addCertificates(certs);
    CMSSignedData sigData = gen.generate(data, false);

    ASN1InputStream asn1 = new ASN1InputStream(sigData.getEncoded());
    DEROutputStream dos = new DEROutputStream(out);
    dos.writeObject(asn1.readObject());
}

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From source file:com.awcoleman.BouncyCastleGenericCDRHadoop.RawFileRecordReader.java

License:Apache License

@Override
public void initialize(InputSplit split, TaskAttemptContext context) throws IOException, InterruptedException {
    Configuration conf = context.getConfiguration();
    path = ((FileSplit) split).getPath();
    FileSystem fs = path.getFileSystem(conf);
    FSDataInputStream fsin = fs.open(path);
    is = decompressStream(fsin);/*  w  ww . j  a  va  2 s. c o m*/
    asnin = new ASN1InputStream(is);
}

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From source file:com.awcoleman.BouncyCastleGenericCDRHadoop.StandaloneDecoder.java

License:Apache License

public StandaloneDecoder(String filename) throws IOException {

    File fileIn = new File(filename);
    FileInputStream fin = new FileInputStream(fileIn);
    InputStream is = decompressStream(fin);

    ASN1InputStream asnin = new ASN1InputStream(is);
    ASN1Primitive obj = null;/*from   w w  w  .  jav a 2  s  .  co  m*/

    while ((obj = asnin.readObject()) != null) {

        CallDetailRecord thisCdr = new CallDetailRecord((ASN1Sequence) obj);

        System.out.println("CallDetailRecord " + thisCdr.getRecordNumber() + " Calling "
                + thisCdr.getCallingNumber() + " Called " + thisCdr.getCalledNumber() + " Start Date-Time "
                + thisCdr.getStartDate() + "-" + thisCdr.getStartTime() + " duration " + thisCdr.getDuration());

    }

    asnin.close();
    is.close();
    fin.close();
}

---

From source file:com.awcoleman.BouncyCastleGenericCDRHadoopWithWritable.RawFileRecordReader.java

License:Apache License

@Override
public void initialize(InputSplit split, TaskAttemptContext context) throws IOException, InterruptedException {
    Configuration conf = context.getConfiguration();
    path = ((FileSplit) split).getPath();
    FileSystem fs = path.getFileSystem(conf);
    FSDataInputStream fsin = fs.open(path);
    is = decompressStream(fsin);//  www .  j  ava 2 s  .  com
    asnin = new ASN1InputStream(is);

    recordCounter = 0;
}

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From source file:com.bitsofproof.supernode.api.ECKeyPair.java

License:Apache License

public static boolean verify(byte[] hash, byte[] signature, byte[] pub) {
    ASN1InputStream asn1 = new ASN1InputStream(signature);
    try {//  ww w. j a va2 s.c o  m
        ECDSASigner signer = new ECDSASigner();
        signer.init(false, new ECPublicKeyParameters(curve.getCurve().decodePoint(pub), domain));

        DLSequence seq = (DLSequence) asn1.readObject();
        BigInteger r = ((DERInteger) seq.getObjectAt(0)).getPositiveValue();
        BigInteger s = ((DERInteger) seq.getObjectAt(1)).getPositiveValue();
        return signer.verifySignature(hash, r, s);
    } catch (Exception e) {
        // threat format errors as invalid signatures
        return false;
    } finally {
        try {
            asn1.close();
        } catch (IOException e) {
        }
    }
}

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From source file:com.example.androidtest.SslUtil.java

License:Open Source License

/**
 * Creates an AuthorityKeyIdentifier from a public key, name, and serial
 * number./*from   w  ww  . j  a  v a 2 s.c  o  m*/
 * <p>
 * {@link AuthorityKeyIdentifierStructure} is <i>almost</i> perfect for this,
 * but sadly it does not have a constructor suitable for us:
 * {@link AuthorityKeyIdentifierStructure#AuthorityKeyIdentifierStructure(PublicKey)}
 * does not set the serial number or name (which is important to us), while 
 * {@link AuthorityKeyIdentifierStructure#AuthorityKeyIdentifierStructure(X509Certificate)}
 * sets those fields but needs a completed certificate to do so.
 * <p>
 * This method addresses the gap in available {@link AuthorityKeyIdentifier}
 * constructors provided by BouncyCastle; its implementation is derived from
 * {@link AuthorityKeyIdentifierStructure#AuthorityKeyIdentifierStructure(X509Certificate)}.
 *  
 * @param publicKey  the public key
 * @param name  the name
 * @param serialNumber  the serial number
 * @return  a new {@link AuthorityKeyIdentifier}
 */
private static AuthorityKeyIdentifier createAuthorityKeyIdentifier(PublicKey publicKey, X509Name name,
        BigInteger serialNumber) {
    GeneralName genName = new GeneralName(name);
    SubjectPublicKeyInfo info;
    try {
        info = new SubjectPublicKeyInfo(
                (ASN1Sequence) new ASN1InputStream(publicKey.getEncoded()).readObject());
    } catch (IOException e) {
        throw new RuntimeException("Error encoding public key");
    }
    return new AuthorityKeyIdentifier(info, new GeneralNames(genName), serialNumber);
}

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From source file:com.github.horrorho.inflatabledonkey.data.der.DERUtils.java

License:Open Source License

public static <T> Optional<T> parse(byte[] data, Function<ASN1Primitive, T> function) {
    try (ASN1InputStream asN1InputStream = new ASN1InputStream(data)) {
        ASN1Primitive primitive = asN1InputStream.readObject();

        return parse(primitive, function);

    } catch (IOException ex) {
        logger.warn("-- parse() - IOException: {}", ex);
        return Optional.empty();
    }//from  w  w  w .  j  a  v a2s .c  om
}

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From source file:com.goodvikings.cryptim.api.KeyRing.java

License:BEER-WARE LICENSE

private void ASN1DecodeKeys(byte[] plain) throws IOException, PGPException, NoSuchProviderException,
        ParseException, InvalidKeyException, NoSuchAlgorithmException, InvalidKeySpecException {
    JcaPGPKeyConverter converter = new JcaPGPKeyConverter();

    ASN1Sequence seq = (ASN1Sequence) new ASN1InputStream(new ByteArrayInputStream(plain)).readObject();

    PGPPublicKey pub = converter.getPGPPublicKey(PGPPublicKey.RSA_GENERAL,
            new RSAPublicKeyImpl(
                    ((ASN1OctetString) ((ASN1Sequence) seq.getObjectAt(0)).getObjectAt(1)).getOctets()),
            ((ASN1UTCTime) ((ASN1Sequence) seq.getObjectAt(0)).getObjectAt(0)).getAdjustedDate());
    kp = new PGPKeyPair(pub, converter.getPGPPrivateKey(pub, KeyFactory.getInstance("RSA")
            .generatePrivate(new PKCS8EncodedKeySpec(((ASN1OctetString) seq.getObjectAt(1)).getOctets()))));

    ASN1Sequence keySeq = (ASN1Sequence) seq.getObjectAt(2);

    for (int i = 0; i < keySeq.size(); i++) {
        keys.put(((DERUTF8String) ((ASN1Sequence) keySeq.getObjectAt(i)).getObjectAt(0)).getString(),
                converter.getPGPPublicKey(PGPPublicKey.RSA_GENERAL, new RSAPublicKeyImpl(
                        ((ASN1OctetString) ((ASN1Sequence) keySeq.getObjectAt(i)).getObjectAt(3)).getOctets()),
                        ((ASN1UTCTime) ((ASN1Sequence) keySeq.getObjectAt(i)).getObjectAt(2))
                                .getAdjustedDate()));
        nicks.put(((DERUTF8String) ((ASN1Sequence) keySeq.getObjectAt(i)).getObjectAt(0)).getString(),
                ((DERUTF8String) ((ASN1Sequence) keySeq.getObjectAt(i)).getObjectAt(1)).getString());
    }/*  w ww  .j  av  a  2s  . co  m*/
}

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From source file:com.google.bitcoin.core.ECKey.java

License:Apache License

private static BigInteger extractPrivateKeyFromASN1(byte[] asn1privkey) {
    // To understand this code, see the definition of the ASN.1 format for EC private keys in the OpenSSL source
    // code in ec_asn1.c:
    ///*from   w ww.j  av a  2s  .c o m*/
    // ASN1_SEQUENCE(EC_PRIVATEKEY) = {
    //   ASN1_SIMPLE(EC_PRIVATEKEY, version, LONG),
    //   ASN1_SIMPLE(EC_PRIVATEKEY, privateKey, ASN1_OCTET_STRING),
    //   ASN1_EXP_OPT(EC_PRIVATEKEY, parameters, ECPKPARAMETERS, 0),
    //   ASN1_EXP_OPT(EC_PRIVATEKEY, publicKey, ASN1_BIT_STRING, 1)
    // } ASN1_SEQUENCE_END(EC_PRIVATEKEY)
    //
    try {
        ASN1InputStream decoder = new ASN1InputStream(asn1privkey);
        DLSequence seq = (DLSequence) decoder.readObject();
        checkArgument(seq.size() == 4, "Input does not appear to be an ASN.1 OpenSSL EC private key");
        checkArgument(((DERInteger) seq.getObjectAt(0)).getValue().equals(BigInteger.ONE),
                "Input is of wrong version");
        Object obj = seq.getObjectAt(1);
        byte[] bits = ((ASN1OctetString) obj).getOctets();
        decoder.close();
        return new BigInteger(1, bits);
    } catch (IOException e) {
        throw new RuntimeException(e); // Cannot happen, reading from memory stream.
    }
}

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