Examples with DerParser io.churchkey.asn1.DerParser used on opensource projects

Example 16 with DerParser

use of io.churchkey.asn1.DerParser in project churchkey by tomitribe.

the class EcCurveParams method parse.

public static ECParameterSpec parse(final byte[] data) throws IOException {
    final DerParser d1 = new DerParser(data);
    final Asn1Object d1o1 = d1.readObject().assertType(Asn1Type.SEQUENCE);
    return parseSequence(d1o1);
}

Example 17 with DerParser

use of io.churchkey.asn1.DerParser in project churchkey by tomitribe.

the class FooTest method test3.

@Ignore
@Test
public void test3() throws Exception {
    final Resource resource = Resource.resource(BeginPrivateKeyTest.class.getSimpleName());
    final byte[] bytes = resource.bytes("openssl-rsaprivatekey-3072.pem");
    final Pem pem = Pem.parse(bytes);
    {
        final DerParser d1 = new DerParser(pem.getData());
        final Asn1Object d1o1 = d1.readObject().assertType(Asn1Type.SEQUENCE);
        {
            final DerParser d2 = new DerParser(d1o1.getValue());
            final Asn1Object d2o1 = d2.readObject().assertType(Asn1Type.INTEGER);
            final Asn1Object d2o2 = d2.readObject().assertType(Asn1Type.SEQUENCE);
            {
                final DerParser d3 = new DerParser(d2o2.getValue());
                final Asn1Object d3o1 = d3.readObject().assertType(Asn1Type.OBJECT_IDENTIFIER);
                final Asn1Object d3o2 = d3.readObject().assertType(Asn1Type.NULL);
            }
            final Asn1Object d2o3 = d2.readObject().assertType(OCTET_STRING);
            {
                final DerParser d3 = new DerParser(d2o3.getValue());
                final Asn1Object d3o1 = d3.readObject().assertType(Asn1Type.SEQUENCE);
                {
                    final DerParser d4 = new DerParser(d3o1.getValue());
                    final BigInteger version = d4.readBigInteger();
                    final RSAPrivateCrtKey privateKey = Rsa.Private.builder().modulus(d4.readBigInteger()).publicExponent(d4.readBigInteger()).privateExponent(d4.readBigInteger()).primeP(d4.readBigInteger()).primeQ(d4.readBigInteger()).primeExponentP(d4.readBigInteger()).primeExponentQ(d4.readBigInteger()).crtCoefficient(d4.readBigInteger()).build().toKey();
                    final Key key1 = new Key(privateKey, Key.Type.PRIVATE, RSA, Key.Format.PEM);
                    System.out.println(key1);
                }
            }
        }
    }
}

Example 18 with DerParser

use of io.churchkey.asn1.DerParser in project churchkey by tomitribe.

the class BeginEcParameters method decode.

public static Object decode(final byte[] bytes) throws IOException {
    if (!Utils.startsWith("-----BEGIN EC PARAMETERS-----", bytes)) {
        throw new IllegalArgumentException("Contents do not start with -----BEGIN EC PARAMETERS-----");
    }
    final Pem pem = Pem.parse(bytes);
    final byte[] data = pem.getData();
    final Asn1Type type = new DerParser(data).readObject().getType();
    if (type == Asn1Type.SEQUENCE) {
        return EcCurveParams.parse(data);
    }
    if (type == Asn1Type.OBJECT_IDENTIFIER) {
        return EcCurveParams.parseOid(data);
    }
    throw new UnsupportedOperationException("Unexpected ASN1 type: " + type);
}

Example 19 with DerParser

use of io.churchkey.asn1.DerParser in project churchkey by tomitribe.

the class BeginPrivateKey method decodeDsaKey.

private static Key decodeDsaKey(final byte[] bytes) throws IOException {
    final Dsa.Private.Builder dsa = Dsa.Private.builder();
    final DerParser d1 = new DerParser(bytes);
    final Asn1Object d1o1 = d1.readObject().assertType(Asn1Type.SEQUENCE);
    {
        final DerParser d2 = new DerParser(d1o1.getValue());
        final Asn1Object d2o1 = d2.readObject().assertType(Asn1Type.INTEGER);
        final Asn1Object d2o2 = d2.readObject().assertType(Asn1Type.SEQUENCE);
        {
            final DerParser d3 = new DerParser(d2o2.getValue());
            final Asn1Object d3o1 = d3.readObject().assertType(Asn1Type.OBJECT_IDENTIFIER);
            final Asn1Object d3o2 = d3.readObject().assertType(Asn1Type.SEQUENCE);
            {
                final DerParser d4 = new DerParser(d3o2.getValue());
                dsa.p(d4.readBigInteger());
                dsa.q(d4.readBigInteger());
                dsa.g(d4.readBigInteger());
            }
        }
        final Asn1Object d2o3 = d2.readObject().assertType(Asn1Type.OCTET_STRING);
        {
            final DerParser d3 = new DerParser(d2o3.getValue());
            dsa.x(d3.readBigInteger());
            final Dsa.Private build = dsa.build();
            final DSAPrivateKey privateKey = build.toKey();
            final DSAPublicKey publicKey = build.toPublic().toKey();
            return new Key(privateKey, publicKey, Key.Type.PRIVATE, DSA, Key.Format.PEM);
        }
    }
}

Example 20 with DerParser

use of io.churchkey.asn1.DerParser in project churchkey by tomitribe.

the class BeginPrivateKey method decodeRsaKey.

private static Key decodeRsaKey(final byte[] bytes) throws IOException {
    final DerParser d1 = new DerParser(bytes);
    final Asn1Object d1o1 = d1.readObject().assertType(Asn1Type.SEQUENCE);
    {
        final DerParser d2 = new DerParser(d1o1.getValue());
        final Asn1Object d2o1 = d2.readObject().assertType(Asn1Type.INTEGER);
        final Asn1Object d2o2 = d2.readObject().assertType(Asn1Type.SEQUENCE);
        {
            final DerParser d3 = new DerParser(d2o2.getValue());
            final Asn1Object d3o1 = d3.readObject().assertType(Asn1Type.OBJECT_IDENTIFIER);
            final Asn1Object d3o2 = d3.readObject().assertType(Asn1Type.NULL);
        }
        final Asn1Object d2o3 = d2.readObject().assertType(Asn1Type.OCTET_STRING);
        {
            final DerParser d3 = new DerParser(d2o3.getValue());
            final Asn1Object d3o1 = d3.readObject().assertType(Asn1Type.SEQUENCE);
            {
                final DerParser d4 = new DerParser(d3o1.getValue());
                final BigInteger version = d4.readBigInteger();
                final Rsa.Private build = Rsa.Private.builder().modulus(d4.readBigInteger()).publicExponent(d4.readBigInteger()).privateExponent(d4.readBigInteger()).primeP(d4.readBigInteger()).primeQ(d4.readBigInteger()).primeExponentP(d4.readBigInteger()).primeExponentQ(d4.readBigInteger()).crtCoefficient(d4.readBigInteger()).build();
                final RSAPrivateCrtKey privateKey = build.toKey();
                final RSAPublicKey publicKey = build.toPublic().toKey();
                return new Key(privateKey, publicKey, Key.Type.PRIVATE, RSA, Key.Format.PEM);
            }
        }
    }
}