java.security.PKCS12Attribute#sun.security.util.DerOutputStream源码实例Demo

NamedCurve(String name, String oid, EllipticCurve curve,
        ECPoint g, BigInteger n, int h) {
    super(curve, g, n, h);
    this.name = name;
    this.oid = oid;

    DerOutputStream out = new DerOutputStream();

    try {
        out.putOID(new ObjectIdentifier(oid));
    } catch (IOException e) {
        throw new RuntimeException("Internal error", e);
    }

    encoded = out.toByteArray();
}
 

/**
 * Sign all the data thus far updated. The signature is formatted
 * according to the Canonical Encoding Rules, returned as a DER
 * sequence of Integer, r and s.
 *
 * @return a signature block formatted according to the Canonical
 * Encoding Rules.
 *
 * @exception SignatureException if the signature object was not
 * properly initialized, or if another exception occurs.
 *
 * @see sun.security.DSA#engineUpdate
 * @see sun.security.DSA#engineVerify
 */
protected byte[] engineSign() throws SignatureException {
    BigInteger k = generateK(presetQ);
    BigInteger r = generateR(presetP, presetQ, presetG, k);
    BigInteger s = generateS(presetX, presetQ, r, k);

    try {
        DerOutputStream outseq = new DerOutputStream(100);
        outseq.putInteger(r);
        outseq.putInteger(s);
        DerValue result = new DerValue(DerValue.tag_Sequence,
                                       outseq.toByteArray());

        return result.toByteArray();

    } catch (IOException e) {
        throw new SignatureException("error encoding signature");
    }
}
 

NamedCurve(String name, String oid, EllipticCurve curve,
        ECPoint g, BigInteger n, int h) {
    super(curve, g, n, h);
    this.name = name;
    this.oid = oid;

    DerOutputStream out = new DerOutputStream();

    try {
        out.putOID(new ObjectIdentifier(oid));
    } catch (IOException e) {
        throw new RuntimeException("Internal error", e);
    }

    encoded = out.toByteArray();
}
 

/**
 * Encodes the distribution point name and writes it to the DerOutputStream.
 *
 * @param out the output stream.
 * @exception IOException on encoding error.
 */
public void encode(DerOutputStream out) throws IOException {

    DerOutputStream theChoice = new DerOutputStream();

    if (fullName != null) {
        fullName.encode(theChoice);
        out.writeImplicit(
            DerValue.createTag(DerValue.TAG_CONTEXT, true, TAG_FULL_NAME),
            theChoice);

    } else {
        relativeName.encode(theChoice);
        out.writeImplicit(
            DerValue.createTag(DerValue.TAG_CONTEXT, true,
                TAG_RELATIVE_NAME),
            theChoice);
    }
}
 

/**
 * Returns the ASN.1 encoding of this object.
 * @return the ASN.1 encoding. Returns a new array
 * each time this method is called.
 * @exception IOException if error occurs when constructing its
 * ASN.1 encoding.
 */
public byte[] getEncoded() throws IOException {
    if (this.encoded == null) {
        DerOutputStream out = new DerOutputStream();
        DerOutputStream tmp = new DerOutputStream();

        // encode encryption algorithm
        algid.encode(tmp);

        // encode encrypted data
        tmp.putOctetString(encryptedData);

        // wrap everything into a SEQUENCE
        out.write(DerValue.tag_Sequence, tmp);
        this.encoded = out.toByteArray();
    }
    return this.encoded.clone();
}
 

/**
 * Returns the ASN.1 encoding of this class.
 */
public byte[] getEncoded()
    throws IOException
{
    if (this.encoded != null) return this.encoded.clone();

    DerOutputStream out = new DerOutputStream();
    DerOutputStream tmp = new DerOutputStream();

    // encode encryption algorithm
    algid.encode(tmp);

    // encode encrypted data
    tmp.putOctetString(encryptedData);

    // wrap everything into a SEQUENCE
    out.write(DerValue.tag_Sequence, tmp);
    this.encoded = out.toByteArray();

    return this.encoded.clone();
}
 

/**
 * Sign all the data thus far updated. The signature is formatted
 * according to the Canonical Encoding Rules, returned as a DER
 * sequence of Integer, r and s.
 *
 * @return a signature block formatted according to the Canonical
 * Encoding Rules.
 *
 * @exception SignatureException if the signature object was not
 * properly initialized, or if another exception occurs.
 *
 * @see sun.security.DSA#engineUpdate
 * @see sun.security.DSA#engineVerify
 */
protected byte[] engineSign() throws SignatureException {
    BigInteger k = generateK(presetQ);
    BigInteger r = generateR(presetP, presetQ, presetG, k);
    BigInteger s = generateS(presetX, presetQ, r, k);

    try {
        DerOutputStream outseq = new DerOutputStream(100);
        outseq.putInteger(r);
        outseq.putInteger(s);
        DerValue result = new DerValue(DerValue.tag_Sequence,
                                       outseq.toByteArray());

        return result.toByteArray();

    } catch (IOException e) {
        throw new SignatureException("error encoding signature");
    }
}
 

NamedCurve(String name, String oid, EllipticCurve curve,
        ECPoint g, BigInteger n, int h) {
    super(curve, g, n, h);
    this.name = name;
    this.oid = oid;

    DerOutputStream out = new DerOutputStream();

    try {
        out.putOID(new ObjectIdentifier(oid));
    } catch (IOException e) {
        throw new RuntimeException("Internal error", e);
    }

    encoded = out.toByteArray();
}
 

/**
 * Sign all the data thus far updated. The signature is formatted
 * according to the Canonical Encoding Rules, returned as a DER
 * sequence of Integer, r and s.
 *
 * @return a signature block formatted according to the Canonical
 * Encoding Rules.
 *
 * @exception SignatureException if the signature object was not
 * properly initialized, or if another exception occurs.
 *
 * @see sun.security.DSA#engineUpdate
 * @see sun.security.DSA#engineVerify
 */
protected byte[] engineSign() throws SignatureException {
    BigInteger k = generateK(presetQ);
    BigInteger r = generateR(presetP, presetQ, presetG, k);
    BigInteger s = generateS(presetX, presetQ, r, k);

    try {
        DerOutputStream outseq = new DerOutputStream(100);
        outseq.putInteger(r);
        outseq.putInteger(s);
        DerValue result = new DerValue(DerValue.tag_Sequence,
                                       outseq.toByteArray());

        return result.toByteArray();

    } catch (IOException e) {
        throw new SignatureException("error encoding signature");
    }
}
 

NamedCurve(String name, String oid, EllipticCurve curve,
        ECPoint g, BigInteger n, int h) {
    super(curve, g, n, h);
    this.name = name;
    this.oid = oid;

    DerOutputStream out = new DerOutputStream();

    try {
        out.putOID(new ObjectIdentifier(oid));
    } catch (IOException e) {
        throw new RuntimeException("Internal error", e);
    }

    encoded = out.toByteArray();
}
 

/**
 * Returns the ASN.1 encoding of this object.
 * @return the ASN.1 encoding. Returns a new array
 * each time this method is called.
 * @exception IOException if error occurs when constructing its
 * ASN.1 encoding.
 */
public byte[] getEncoded() throws IOException {
    if (this.encoded == null) {
        DerOutputStream out = new DerOutputStream();
        DerOutputStream tmp = new DerOutputStream();

        // encode encryption algorithm
        algid.encode(tmp);

        // encode encrypted data
        tmp.putOctetString(encryptedData);

        // wrap everything into a SEQUENCE
        out.write(DerValue.tag_Sequence, tmp);
        this.encoded = out.toByteArray();
    }
    return this.encoded.clone();
}
 

/**
 * Returns the ASN.1 encoding of this object.
 * @return the ASN.1 encoding. Returns a new array
 * each time this method is called.
 * @exception IOException if error occurs when constructing its
 * ASN.1 encoding.
 */
public byte[] getEncoded() throws IOException {
    if (this.encoded == null) {
        DerOutputStream out = new DerOutputStream();
        DerOutputStream tmp = new DerOutputStream();

        // encode encryption algorithm
        algid.encode(tmp);

        // encode encrypted data
        tmp.putOctetString(encryptedData);

        // wrap everything into a SEQUENCE
        out.write(DerValue.tag_Sequence, tmp);
        this.encoded = out.toByteArray();
    }
    return this.encoded.clone();
}
 

NamedCurve(String name, String oid, EllipticCurve curve,
        ECPoint g, BigInteger n, int h) {
    super(curve, g, n, h);
    this.name = name;
    this.oid = oid;

    DerOutputStream out = new DerOutputStream();

    try {
        out.putOID(new ObjectIdentifier(oid));
    } catch (IOException e) {
        throw new RuntimeException("Internal error", e);
    }

    encoded = out.toByteArray();
}
 

/**
 * Encodes the distribution point name and writes it to the DerOutputStream.
 *
 * @param out the output stream.
 * @exception IOException on encoding error.
 */
public void encode(DerOutputStream out) throws IOException {

    DerOutputStream theChoice = new DerOutputStream();

    if (fullName != null) {
        fullName.encode(theChoice);
        out.writeImplicit(
            DerValue.createTag(DerValue.TAG_CONTEXT, true, TAG_FULL_NAME),
            theChoice);

    } else {
        relativeName.encode(theChoice);
        out.writeImplicit(
            DerValue.createTag(DerValue.TAG_CONTEXT, true,
                TAG_RELATIVE_NAME),
            theChoice);
    }
}
 

/**
 * Returns the ASN.1 encoding of this class.
 */
public byte[] getEncoded()
    throws IOException
{
    if (this.encoded != null) return this.encoded.clone();

    DerOutputStream out = new DerOutputStream();
    DerOutputStream tmp = new DerOutputStream();

    // encode encryption algorithm
    algid.encode(tmp);

    // encode encrypted data
    tmp.putOctetString(encryptedData);

    // wrap everything into a SEQUENCE
    out.write(DerValue.tag_Sequence, tmp);
    this.encoded = out.toByteArray();

    return this.encoded.clone();
}
 

/**
 * Sign all the data thus far updated. The signature is formatted
 * according to the Canonical Encoding Rules, returned as a DER
 * sequence of Integer, r and s.
 *
 * @return a signature block formatted according to the Canonical
 * Encoding Rules.
 *
 * @exception SignatureException if the signature object was not
 * properly initialized, or if another exception occurs.
 *
 * @see sun.security.DSA#engineUpdate
 * @see sun.security.DSA#engineVerify
 */
protected byte[] engineSign() throws SignatureException {
    BigInteger k = generateK(presetQ);
    BigInteger r = generateR(presetP, presetQ, presetG, k);
    BigInteger s = generateS(presetX, presetQ, r, k);

    try {
        DerOutputStream outseq = new DerOutputStream(100);
        outseq.putInteger(r);
        outseq.putInteger(s);
        DerValue result = new DerValue(DerValue.tag_Sequence,
                                       outseq.toByteArray());

        return result.toByteArray();

    } catch (IOException e) {
        throw new SignatureException("error encoding signature");
    }
}
 

/**
 * Write the extension to the DerOutputStream.
 *
 * @param out the DerOutputStream to write the extension to.
 * @exception IOException on encoding errors.
 */
public void encode(OutputStream out) throws IOException {
    DerOutputStream tmp = new DerOutputStream();
    if (this.extensionValue == null) {
        this.extensionId = PKIXExtensions.SubjectInfoAccess_Id;
        this.critical = false;
        encodeThis();
    }
    super.encode(tmp);
    out.write(tmp.toByteArray());
}
 

/**
 * Write the PolicyInformation to the DerOutputStream.
 *
 * @param out the DerOutputStream to write the extension to.
 * @exception IOException on encoding errors.
 */
public void encode(DerOutputStream out) throws IOException {
    DerOutputStream tmp = new DerOutputStream();
    policyIdentifier.encode(tmp);
    if (!policyQualifiers.isEmpty()) {
        DerOutputStream tmp2 = new DerOutputStream();
        for (PolicyQualifierInfo pq : policyQualifiers) {
            tmp2.write(pq.getEncoded());
        }
        tmp.write(DerValue.tag_Sequence, tmp2);
    }
    out.write(DerValue.tag_Sequence, tmp);
}
 

/**
 * Encode the CertPath using PKCS#7 format.
 *
 * @return a byte array containing the binary encoding of the PKCS#7 object
 * @exception CertificateEncodingException if an exception occurs
 */
private byte[] encodePKCS7() throws CertificateEncodingException {
    PKCS7 p7 = new PKCS7(new AlgorithmId[0],
                         new ContentInfo(ContentInfo.DATA_OID, null),
                         certs.toArray(new X509Certificate[certs.size()]),
                         new SignerInfo[0]);
    DerOutputStream derout = new DerOutputStream();
    try {
        p7.encodeSignedData(derout);
    } catch (IOException ioe) {
        throw new CertificateEncodingException(ioe.getMessage());
    }
    return derout.toByteArray();
}
 

protected byte[] engineGetEncoded() throws IOException {
    DerOutputStream out = new DerOutputStream();
    DerOutputStream bytes = new DerOutputStream();

    bytes.putInteger(p);
    bytes.putInteger(q);
    bytes.putInteger(g);
    out.write(DerValue.tag_Sequence, bytes);
    return out.toByteArray();
}
 

/**
 * DER encode this object onto an output stream.
 * Implements the {@code DerEncoder} interface.
 *
 * @param out
 * the output stream on which to write the DER encoding.
 *
 * @exception IOException on encoding error.
 */
public void derEncode(OutputStream out) throws IOException {
    DerOutputStream seq = new DerOutputStream();
    seq.putInteger(version);
    DerOutputStream issuerAndSerialNumber = new DerOutputStream();
    issuerName.encode(issuerAndSerialNumber);
    issuerAndSerialNumber.putInteger(certificateSerialNumber);
    seq.write(DerValue.tag_Sequence, issuerAndSerialNumber);

    digestAlgorithmId.encode(seq);

    // encode authenticated attributes if there are any
    if (authenticatedAttributes != null)
        authenticatedAttributes.encode((byte)0xA0, seq);

    digestEncryptionAlgorithmId.encode(seq);

    seq.putOctetString(encryptedDigest);

    // encode unauthenticated attributes if there are any
    if (unauthenticatedAttributes != null)
        unauthenticatedAttributes.encode((byte)0xA1, seq);

    DerOutputStream tmp = new DerOutputStream();
    tmp.write(DerValue.tag_Sequence, seq);

    out.write(tmp.toByteArray());
}
 

/**
 * Returns the ASN.1 encoding of this object.
 * @return the ASN.1 encoding.
 * @exception IOException if error occurs when constructing its
 * ASN.1 encoding.
 */
public byte[] getEncoded() throws NoSuchAlgorithmException, IOException
{
    if (this.encoded != null)
        return this.encoded.clone();

    DerOutputStream out = new DerOutputStream();
    DerOutputStream tmp = new DerOutputStream();

    DerOutputStream tmp2 = new DerOutputStream();
    // encode encryption algorithm
    AlgorithmId algid = AlgorithmId.get(digestAlgorithmName);
    algid.encode(tmp2);

    // encode digest data
    tmp2.putOctetString(digest);

    tmp.write(DerValue.tag_Sequence, tmp2);

    // encode salt
    tmp.putOctetString(macSalt);

    // encode iterations
    tmp.putInteger(iterations);

    // wrap everything into a SEQUENCE
    out.write(DerValue.tag_Sequence, tmp);
    this.encoded = out.toByteArray();

    return this.encoded.clone();
}
 

private void encodeThis() throws IOException {
    if (distributionPoints.isEmpty()) {
        this.extensionValue = null;
    } else {
        DerOutputStream pnts = new DerOutputStream();
        for (DistributionPoint point : distributionPoints) {
            point.encode(pnts);
        }
        DerOutputStream seq = new DerOutputStream();
        seq.write(DerValue.tag_Sequence, pnts);
        this.extensionValue = seq.toByteArray();
    }
}
 

private void encodeThis() throws IOException {
    if (accessDescriptions.isEmpty()) {
        this.extensionValue = null;
    } else {
        DerOutputStream ads = new DerOutputStream();
        for (AccessDescription accessDescription : accessDescriptions) {
            accessDescription.encode(ads);
        }
        DerOutputStream seq = new DerOutputStream();
        seq.write(DerValue.tag_Sequence, ads);
        this.extensionValue = seq.toByteArray();
    }
}
 

private void encodeThis() throws IOException {
    if (keyUsages == null || keyUsages.isEmpty()) {
        this.extensionValue = null;
        return;
    }
    DerOutputStream os = new DerOutputStream();
    DerOutputStream tmp = new DerOutputStream();

    for (int i = 0; i < keyUsages.size(); i++) {
        tmp.putOID(keyUsages.elementAt(i));
    }

    os.write(DerValue.tag_Sequence, tmp);
    this.extensionValue = os.toByteArray();
}
 

/**
 * Write the extension to the DerOutputStream.
 *
 * @param out the DerOutputStream to write the extension to.
 * @exception IOException on encoding errors.
 */
public void encode(OutputStream out) throws IOException {
    DerOutputStream tmp = new DerOutputStream();
    if (this.extensionValue == null) {
        this.extensionId = PKIXExtensions.AuthInfoAccess_Id;
        this.critical = false;
        encodeThis();
    }
    super.encode(tmp);
    out.write(tmp.toByteArray());
}
 

/**
 * Returns the full ASN.1 DER encoding for this oid object, which
 * includes the tag and length.
 *
 * @return byte array containing the DER encoding of this oid object.
 * @exception GSSException may be thrown when the oid can't be encoded
 */
public byte[] getDER() throws GSSException {

    if (derEncoding == null) {
        DerOutputStream dout = new DerOutputStream();
        try {
            dout.putOID(oid);
        } catch (IOException e) {
            throw new GSSException(GSSException.FAILURE, e.getMessage());
        }
        derEncoding = dout.toByteArray();
    }

    return derEncoding.clone();
}
 

/**
 * Write the extension to the DerOutputStream.
 *
 * @param out the DerOutputStream to write the extension to.
 * @exception IOException on encoding errors.
 */
public void encode(OutputStream out) throws IOException {
    DerOutputStream tmp = new DerOutputStream();
    if (this.extensionValue == null) {
        this.extensionId = PKIXExtensions.AuthInfoAccess_Id;
        this.critical = false;
        encodeThis();
    }
    super.encode(tmp);
    out.write(tmp.toByteArray());
}
 

/**
 * Returns the full ASN.1 DER encoding for this oid object, which
 * includes the tag and length.
 *
 * @return byte array containing the DER encoding of this oid object.
 * @exception GSSException may be thrown when the oid can't be encoded
 */
public byte[] getDER() throws GSSException {

    if (derEncoding == null) {
        DerOutputStream dout = new DerOutputStream();
        try {
            dout.putOID(oid);
        } catch (IOException e) {
            throw new GSSException(GSSException.FAILURE, e.getMessage());
        }
        derEncoding = dout.toByteArray();
    }

    return derEncoding.clone();
}
 

private byte[] generateDerEncoding() throws IOException {
    DerOutputStream out = new DerOutputStream();
    Object[] attribVals = attributes.values().toArray();

    out.putOrderedSetOf(DerValue.tag_SetOf,
                        castToDerEncoder(attribVals));
    return out.toByteArray();
}