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.guardtime.asn1.TimeSignature.java

License:Apache License

/**
 * Parses a DER-encoded {@code TimeSignature} out from the given input stream.
 *
 * @param in/*from   w  w w . j a va 2  s  .c  o  m*/
 *            the input stream to read data from.
 * @return the {@code TimeSignature} object.
 * @throws Asn1FormatException
 *             if the data read from {@code in} does not represent a valid
 *             {@code TimeSignature} object.
 * @throws IOException
 *             if {@code in} throws one.
 */
public static TimeSignature getInstance(InputStream in) throws Asn1FormatException, IOException {
    if (in == null) {
        throw new IllegalArgumentException("invalid input stream: null");
    }

    try {
        ASN1Object obj = new ASN1InputStream(in).readObject();
        return new TimeSignature(obj);
    } catch (IOException e) {
        if (isAsnParserException(e)) {
            throw new Asn1FormatException("time signature has invalid format", e);
        } else {
            throw e;
        }
    } catch (IllegalArgumentException e) {
        if (isAsnParserException(e)) {
            throw new Asn1FormatException("time signature has invalid format", e);
        } else {
            throw e;
        }
    }
}

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From source file:com.guardtime.asn1.TimestampResponse.java

License:Apache License

/**
 * Parses a DER-encoded {@code TimeStampResp} out from the given input
 * stream.//from   w ww.  j av  a  2  s .c o m
 *
 * @param in
 *            the input stream to read data from.
 * @return the {@code TimeStampResp} object.
 * @throws Asn1FormatException
 *             if the data read from {@code in} does not represent a valid
 *             {@code TimeStampResp} object.
 * @throws IOException
 *             if {@code in} throws one.
 */
public static TimestampResponse getInstance(InputStream in) throws Asn1FormatException, IOException {
    if (in == null) {
        throw new IllegalArgumentException("invalid input stream: null");
    }

    try {
        ASN1Object obj = new ASN1InputStream(in).readObject();
        return new TimestampResponse(obj);
    } catch (IOException e) {
        if (isAsnParserException(e)) {
            throw new Asn1FormatException("timestamp response has invalid format", e);
        } else {
            throw e;
        }
    } catch (IllegalArgumentException e) {
        if (isAsnParserException(e)) {
            throw new Asn1FormatException("timestamp response has invalid format", e);
        } else {
            throw e;
        }
    }
}

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From source file:com.guardtime.asn1.TstInfo.java

License:Apache License

/**
 * Parses a DER-encoded {@code TSTInfo} out from the given input stream.
 *
 * @param in//from ww  w  .  j av a 2 s .c o m
 *            the input stream to read data from.
 * @return the {@code TSTInfo} object.
 * @throws Asn1FormatException
 *             if the data read from {@code in} does not represent a valid
 *             {@code TSTInfo} object.
 * @throws IOException
 *             if {@code in} throws one.
 */
public static TstInfo getInstance(InputStream in) throws Asn1FormatException, IOException {
    if (in == null) {
        throw new IllegalArgumentException("invalid input stream: null");
    }

    try {
        ASN1Object obj = new ASN1InputStream(in).readObject();
        return new TstInfo(obj);
    } catch (IOException e) {
        if (isAsnParserException(e)) {
            throw new Asn1FormatException("TST info has invalid format", e);
        } else {
            throw e;
        }
    } catch (IllegalArgumentException e) {
        if (isAsnParserException(e)) {
            throw new Asn1FormatException("TST info has invalid format", e);
        } else {
            throw e;
        }
    }
}

---

From source file:com.hierynomus.spnego.NegTokenInit.java

License:Apache License

private NegTokenInit read(Buffer<?> buffer) throws SpnegoException {
    try (ASN1InputStream is = new ASN1InputStream(buffer.asInputStream())) {
        ASN1Primitive applicationSpecific = is.readObject();
        if (!(applicationSpecific instanceof BERApplicationSpecific
                || applicationSpecific instanceof DERApplicationSpecific)) {
            throw new SpnegoException(
                    "Incorrect GSS-API ASN.1 token received, expected to find an [APPLICATION 0], not: "
                            + applicationSpecific);
        }// www  .  ja v  a2  s  .com
        ASN1Sequence implicitSequence = (ASN1Sequence) ((ASN1ApplicationSpecific) applicationSpecific)
                .getObject(BERTags.SEQUENCE);
        ASN1Encodable spnegoOid = implicitSequence.getObjectAt(0);
        if (!(spnegoOid instanceof ASN1ObjectIdentifier)) {
            throw new SpnegoException("Expected to find the SPNEGO OID (" + SPNEGO + "), not: " + spnegoOid);
        }

        parseSpnegoToken(implicitSequence.getObjectAt(1));
    } catch (IOException ioe) {
        throw new SpnegoException("Could not read NegTokenInit from buffer", ioe);
    }
    return this;
}

---

From source file:com.hierynomus.spnego.NegTokenTarg.java

License:Apache License

private NegTokenTarg read(Buffer<?> buffer) throws SpnegoException {
    try (ASN1InputStream is = new ASN1InputStream(buffer.asInputStream())) {
        ASN1Primitive instance = is.readObject();
        parseSpnegoToken(instance);//from   w w  w.ja  v a 2 s .co  m
    } catch (IOException e) {
        throw new SpnegoException("Could not read NegTokenTarg from buffer", e);
    }
    return this;
}

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From source file:com.igeekinc.indelible.indeliblefs.security.EntityAuthenticationClient.java

License:Open Source License

public static DataMoverSessionID getSessionIDFromCertificate(X509Certificate checkCert) throws IOException {
    byte[] checkSessionIDBytesEncoded = checkCert
            .getExtensionValue(X509Extensions.SubjectAlternativeName.toString());
    ASN1InputStream decoder = new ASN1InputStream(new ByteArrayInputStream(checkSessionIDBytesEncoded));
    DERObject checkObject = decoder.readObject();
    DEROctetString checkOctetString = (DEROctetString) checkObject;
    byte[] checkSessionIDBytes = checkOctetString.getOctets();
    DataMoverSessionID checkSessionID = (DataMoverSessionID) ObjectIDFactory
            .reconstituteFromBytes(checkSessionIDBytes);
    return checkSessionID;
}

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From source file:com.infinities.keystone4j.ssl.CRLVerifier.java

License:Apache License

/**
 * Extracts all CRL distribution point URLs from the
 * "CRL Distribution Point" extension in a X.509 certificate. If CRL
 * distribution point extension is unavailable, returns an empty list.
 *///from www. j  a v  a 2s.  c  om
public static List<String> getCrlDistributionPoints(X509Certificate cert)
        throws CertificateParsingException, IOException {
    byte[] crldpExt = cert.getExtensionValue(X509Extension.cRLDistributionPoints.getId());
    if (crldpExt == null) {
        return new ArrayList<String>();
    }
    ASN1InputStream oAsnInStream = null;
    ASN1InputStream oAsnInStream2 = null;
    try {
        oAsnInStream = new ASN1InputStream(new ByteArrayInputStream(crldpExt));
        DERObject derObjCrlDP = oAsnInStream.readObject();
        DEROctetString dosCrlDP = (DEROctetString) derObjCrlDP;
        byte[] crldpExtOctets = dosCrlDP.getOctets();
        oAsnInStream2 = new ASN1InputStream(new ByteArrayInputStream(crldpExtOctets));
        DERObject derObj2 = oAsnInStream2.readObject();
        CRLDistPoint distPoint = CRLDistPoint.getInstance(derObj2);
        List<String> crlUrls = new ArrayList<String>();
        for (DistributionPoint dp : distPoint.getDistributionPoints()) {
            DistributionPointName dpn = dp.getDistributionPoint();
            // Look for URIs in fullName
            if (dpn != null && dpn.getType() == DistributionPointName.FULL_NAME) {
                GeneralName[] genNames = GeneralNames.getInstance(dpn.getName()).getNames();
                // Look for an URI
                for (int j = 0; j < genNames.length; j++) {
                    if (genNames[j].getTagNo() == GeneralName.uniformResourceIdentifier) {
                        String url = DERIA5String.getInstance(genNames[j].getName()).getString();
                        crlUrls.add(url);
                    }
                }
            }
        }
        return crlUrls;
    } finally {
        if (oAsnInStream != null) {
            oAsnInStream.close();
        }

        if (oAsnInStream2 != null) {
            oAsnInStream2.close();
        }
    }
}

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From source file:com.itextpdf.kernel.crypto.securityhandler.EncryptionUtils.java

License:Open Source License

static DERForRecipientParams calculateDERForRecipientParams(byte[] in)
        throws IOException, GeneralSecurityException {
    String s = "1.2.840.113549.3.2";
    DERForRecipientParams parameters = new DERForRecipientParams();

    AlgorithmParameterGenerator algorithmparametergenerator = AlgorithmParameterGenerator.getInstance(s);
    AlgorithmParameters algorithmparameters = algorithmparametergenerator.generateParameters();
    ByteArrayInputStream bytearrayinputstream = new ByteArrayInputStream(
            algorithmparameters.getEncoded("ASN.1"));
    ASN1InputStream asn1inputstream = new ASN1InputStream(bytearrayinputstream);
    ASN1Primitive derobject = asn1inputstream.readObject();
    KeyGenerator keygenerator = KeyGenerator.getInstance(s);
    keygenerator.init(128);//from  w  w  w  .jav  a 2  s.c o m
    SecretKey secretkey = keygenerator.generateKey();
    Cipher cipher = Cipher.getInstance(s);
    cipher.init(1, secretkey, algorithmparameters);

    parameters.abyte0 = secretkey.getEncoded();
    parameters.abyte1 = cipher.doFinal(in);
    parameters.algorithmIdentifier = new AlgorithmIdentifier(new ASN1ObjectIdentifier(s), derobject);

    return parameters;
}

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From source file:com.itextpdf.kernel.crypto.securityhandler.PubKeySecurityHandler.java

License:Open Source License

private KeyTransRecipientInfo computeRecipientInfo(X509Certificate x509certificate, byte[] abyte0)
        throws GeneralSecurityException, IOException {
    ASN1InputStream asn1inputstream = new ASN1InputStream(
            new ByteArrayInputStream(x509certificate.getTBSCertificate()));
    TBSCertificateStructure tbscertificatestructure = TBSCertificateStructure
            .getInstance(asn1inputstream.readObject());
    assert tbscertificatestructure != null;
    AlgorithmIdentifier algorithmidentifier = tbscertificatestructure.getSubjectPublicKeyInfo().getAlgorithm();
    IssuerAndSerialNumber issuerandserialnumber = new IssuerAndSerialNumber(tbscertificatestructure.getIssuer(),
            tbscertificatestructure.getSerialNumber().getValue());
    byte[] cipheredBytes = EncryptionUtils.cipherBytes(x509certificate, abyte0, algorithmidentifier);
    DEROctetString deroctetstring = new DEROctetString(cipheredBytes);
    RecipientIdentifier recipId = new RecipientIdentifier(issuerandserialnumber);
    return new KeyTransRecipientInfo(recipId, algorithmidentifier, deroctetstring);
}

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From source file:com.itextpdf.signatures.CertificateInfo.java

License:Open Source License

/**
 * Get the "issuer" from the TBSCertificate bytes that are passed in.
 *
 * @param enc a TBSCertificate in a byte array
 * @return an ASN1Primitive/*from w w  w .ja  v  a  2  s .com*/
 */
public static ASN1Primitive getIssuer(byte[] enc) {
    try {
        ASN1InputStream in = new ASN1InputStream(new ByteArrayInputStream(enc));
        ASN1Sequence seq = (ASN1Sequence) in.readObject();
        return (ASN1Primitive) seq.getObjectAt(seq.getObjectAt(0) instanceof ASN1TaggedObject ? 3 : 2);
    } catch (IOException e) {
        throw new PdfException(e);
    }
}

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