Example usage for org.bouncycastle.asn1 ASN1InputStream ASN1InputStream

List of usage examples for org.bouncycastle.asn1 ASN1InputStream ASN1InputStream

  1. HOME
  2. Java
  3. org.bouncycastle
  4. org.bouncycastle.asn1.*
  5. ASN1InputStream
  6. 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:jcifs.pac.kerberos.KerberosToken.java

License:Open Source License

public KerberosToken(byte[] token, KerberosKey[] keys) throws PACDecodingException {

    if (token.length <= 0)
        throw new PACDecodingException("Empty kerberos token");

    try {//w w  w  . j a  v a  2s  .c o  m
        ASN1InputStream stream = new ASN1InputStream(new ByteArrayInputStream(token));
        DERApplicationSpecific derToken = ASN1Util.as(DERApplicationSpecific.class, stream);
        if (derToken == null || !derToken.isConstructed())
            throw new PACDecodingException("Malformed kerberos token");
        stream.close();

        stream = new ASN1InputStream(new ByteArrayInputStream(derToken.getContents()));
        ASN1ObjectIdentifier kerberosOid = ASN1Util.as(ASN1ObjectIdentifier.class, stream);
        if (!kerberosOid.getId().equals(KerberosConstants.KERBEROS_OID))
            throw new PACDecodingException("Not a kerberos token");

        int read = 0;
        int readLow = stream.read() & 0xff;
        int readHigh = stream.read() & 0xff;
        read = (readHigh << 8) + readLow;
        if (read != 0x01)
            throw new PACDecodingException("Malformed kerberos token");

        DERApplicationSpecific krbToken = ASN1Util.as(DERApplicationSpecific.class, stream);
        if (krbToken == null || !krbToken.isConstructed())
            throw new PACDecodingException("Malformed kerberos token");

        stream.close();

        this.apRequest = new KerberosApRequest(krbToken.getContents(), keys);
    } catch (IOException e) {
        throw new PACDecodingException("Malformed kerberos token", e);
    }
}

From source file:jcifs.spnego.NegTokenInit.java

License:Open Source License

@Override
protected void parse(byte[] token) throws IOException {

    try (ASN1InputStream is = new ASN1InputStream(token)) {
        DERApplicationSpecific constructed = (DERApplicationSpecific) is.readObject();
        if (constructed == null || !constructed.isConstructed())
            throw new IOException("Malformed SPNEGO token " + constructed
                    + (constructed != null
                            ? " " + constructed.isConstructed() + " " + constructed.getApplicationTag()
                            : ""));

        try (ASN1InputStream der = new ASN1InputStream(constructed.getContents())) {
            ASN1ObjectIdentifier spnego = (ASN1ObjectIdentifier) der.readObject();
            if (!SPNEGO_OID.equals(spnego)) {
                throw new IOException("Malformed SPNEGO token, OID " + spnego);
            }// ww w. j  a v  a2s .  co m
            ASN1TaggedObject tagged = (ASN1TaggedObject) der.readObject();
            if (tagged.getTagNo() != 0) {
                throw new IOException("Malformed SPNEGO token: tag " + tagged.getTagNo() + " " + tagged);
            }
            ASN1Sequence sequence = ASN1Sequence.getInstance(tagged, true);
            Enumeration<ASN1Object> fields = sequence.getObjects();
            while (fields.hasMoreElements()) {
                tagged = (ASN1TaggedObject) fields.nextElement();
                switch (tagged.getTagNo()) {
                case 0:
                    sequence = ASN1Sequence.getInstance(tagged, true);
                    Oid[] mechs = new Oid[sequence.size()];
                    for (int i = mechs.length - 1; i >= 0; i--) {
                        ASN1ObjectIdentifier mechanism = (ASN1ObjectIdentifier) sequence.getObjectAt(i);
                        mechs[i] = new Oid(mechanism.getId());
                    }
                    setMechanisms(mechs);
                    break;
                case 1:
                    DERBitString ctxFlags = DERBitString.getInstance(tagged, true);
                    setContextFlags(ctxFlags.getBytes()[0] & 0xff);
                    break;
                case 2:
                    ASN1OctetString mechanismToken = ASN1OctetString.getInstance(tagged, true);
                    setMechanismToken(mechanismToken.getOctets());
                    break;

                case 3:
                    if (!(tagged.getObject() instanceof DEROctetString)) {
                        break;
                    }
                case 4:
                    ASN1OctetString mechanismListMIC = ASN1OctetString.getInstance(tagged, true);
                    setMechanismListMIC(mechanismListMIC.getOctets());
                    break;
                default:
                    throw new IOException("Malformed token field.");
                }
            }
        } catch (GSSException e) {
            throw new IOException("Failed to read OID", e);
        }
    }
}

From source file:jcifs.spnego.NegTokenTarg.java

License:Open Source License

@Override
protected void parse(byte[] token) throws IOException {
    try (ASN1InputStream der = new ASN1InputStream(token)) {
        ASN1TaggedObject tagged = (ASN1TaggedObject) der.readObject();
        ASN1Sequence sequence = ASN1Sequence.getInstance(tagged, true);
        Enumeration<?> fields = sequence.getObjects();
        while (fields.hasMoreElements()) {
            tagged = (ASN1TaggedObject) fields.nextElement();
            switch (tagged.getTagNo()) {
            case 0:
                ASN1Enumerated enumerated = ASN1Enumerated.getInstance(tagged, true);
                setResult(enumerated.getValue().intValue());
                break;
            case 1:
                ASN1ObjectIdentifier mech = ASN1ObjectIdentifier.getInstance(tagged, true);
                setMechanism(new Oid(mech.getId()));
                break;
            case 2:
                ASN1OctetString mechanismToken = ASN1OctetString.getInstance(tagged, true);
                setMechanismToken(mechanismToken.getOctets());
                break;
            case 3:
                ASN1OctetString mechanismListMIC = ASN1OctetString.getInstance(tagged, true);
                setMechanismListMIC(mechanismListMIC.getOctets());
                break;
            default:
                throw new IOException("Malformed token field.");
            }//ww w  .j av  a 2  s  .  c om
        }
    } catch (GSSException e) {
        throw new IOException("Failed to parse Oid", e);
    }
}

From source file:jp.klab.stone.certinstaller.CredentialHelper.java

License:Apache License

private boolean isCa(X509Certificate cert) {
    try {//  w  w w.j  a va 2  s  .c om
        // TODO: add a test about this
        byte[] basicConstraints = cert.getExtensionValue("2.5.29.19");
        Object obj = new ASN1InputStream(basicConstraints).readObject();
        basicConstraints = ((DEROctetString) obj).getOctets();
        obj = new ASN1InputStream(basicConstraints).readObject();
        return new BasicConstraints((ASN1Sequence) obj).isCA();
    } catch (Exception e) {
        return false;
    }
}

From source file:me.it_result.ca.X509Assertions.java

License:Open Source License

public X509Assertions extensionValue(DERObjectIdentifier id, ASN1Encodable value) throws Exception {
    ASN1InputStream asn1Parser = new ASN1InputStream(cert.getExtensionValue(id.getId()));
    DEROctetString actualExtension = (DEROctetString) asn1Parser.readObject();
    assertTrue(Arrays.equals(value.getDERObject().getDEREncoded(), actualExtension.getOctets()));
    return this;
}

From source file:mitm.common.security.asn1.ASN1Utils.java

License:Open Source License

private static ASN1Object getObject(String oid, byte[] extension) throws IOException {
    ASN1InputStream aIn = new ASN1InputStream(extension);
    ASN1OctetString octs = (ASN1OctetString) aIn.readObject();
    aIn.close();//from  w  ww . java 2s. c  o  m
    aIn = new ASN1InputStream(octs.getOctets());
    ASN1Object obj = aIn.readObject();
    aIn.close();
    return obj;
}

From source file:mitm.common.security.asn1.ASN1Utils.java

License:Open Source License

public static ASN1EncodableVector toASN1EncodableVector(X500Principal principal) throws IOException {
    final ASN1InputStream stream = new ASN1InputStream(principal.getEncoded());
    final ASN1Object der = stream.readObject();

    Enumeration<?> e = ASN1Sequence.getInstance(der).getObjects();

    ASN1EncodableVector v = new ASN1EncodableVector();

    while (e.hasMoreElements()) {
        Object o = e.nextElement();

        if (o instanceof ASN1Encodable) {
            v.add((ASN1Encodable) o);/*from www . j  a va2 s  .com*/
        }
    }

    stream.close();
    return v;
}

From source file:mitm.common.security.asn1.DERUtils.java

License:Open Source License

public static ASN1Primitive toDERObject(Certificate certificate)
        throws CertificateEncodingException, IOException {
    final ASN1InputStream stream = new ASN1InputStream(certificate.getEncoded());
    ASN1Primitive p = stream.readObject();
    stream.close();//from   w ww  . j a  va  2s .  c o m
    return p;
}

From source file:mitm.common.security.asn1.DERUtils.java

License:Open Source License

public static ASN1Primitive toDERObject(X509CRL crl) throws CRLException, IOException {
    final ASN1InputStream stream = new ASN1InputStream(crl.getEncoded());
    ASN1Primitive p = stream.readObject();
    stream.close();//from ww  w . j  a  v a  2 s.c  o m
    return p;
}

From source file:mx.bigdata.cfdi.CFDv3Debugger.java

License:Apache License

public void dumpDigests() throws Exception {
    System.err.println(cfd.getOriginalString());
    byte[] digest = cfd.getDigest();
    CFDv3.dump("Digestion generada", digest, System.err);
    String certStr = cfd.document.getCertificado();
    Base64 b64 = new Base64();
    byte[] cbs = b64.decode(certStr);
    X509Certificate cert = KeyLoader.loadX509Certificate(new ByteArrayInputStream(cbs));
    cert.checkValidity();//ww w  .  j  a v a 2 s .c  om
    String sigStr = cfd.document.getSello();
    byte[] signature = b64.decode(sigStr);
    CFDv3.dump("Digestion firmada", signature, System.err);
    Cipher dec = Cipher.getInstance("RSA");
    dec.init(Cipher.DECRYPT_MODE, cert);
    byte[] result = dec.doFinal(signature);
    CFDv3.dump("Digestion decriptada", result, System.err);
    ASN1InputStream aIn = new ASN1InputStream(result);
    ASN1Sequence seq = (ASN1Sequence) aIn.readObject();
    ASN1OctetString sigHash = (ASN1OctetString) seq.getObjectAt(1);
    CFDv3.dump("Sello", sigHash.getOctets(), System.err);
}