Java DerOutputStream.putInteger方法代码示例

import sun.security.util.DerOutputStream; //导入方法依赖的package包/类
/**
 * 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");
    }
}
 

import sun.security.util.DerOutputStream; //导入方法依赖的package包/类
/**
 * Construct a key from its components. Used by the
 * KeyFactory.
 */
ECPrivateKeyImpl(BigInteger s, ECParameterSpec params)
        throws InvalidKeyException {
    this.s = s;
    this.params = params;
    // generate the encoding
    algid = new AlgorithmId
        (AlgorithmId.EC_oid, ECParameters.getAlgorithmParameters(params));
    try {
        DerOutputStream out = new DerOutputStream();
        out.putInteger(1); // version 1
        byte[] privBytes = ECUtil.trimZeroes(s.toByteArray());
        out.putOctetString(privBytes);
        DerValue val =
            new DerValue(DerValue.tag_Sequence, out.toByteArray());
        key = val.toByteArray();
    } catch (IOException exc) {
        // should never occur
        throw new InvalidKeyException(exc);
    }
}
 

import sun.security.util.DerOutputStream; //导入方法依赖的package包/类
public byte[] encode() throws IOException {

        DerOutputStream request = new DerOutputStream();

        // encode version
        request.putInteger(version);

        // encode messageImprint
        DerOutputStream messageImprint = new DerOutputStream();
        hashAlgorithmId.encode(messageImprint);
        messageImprint.putOctetString(hashValue);
        request.write(DerValue.tag_Sequence, messageImprint);

        // encode optional elements

        if (policyId != null) {
            request.putOID(new ObjectIdentifier(policyId));
        }
        if (nonce != null) {
            request.putInteger(nonce);
        }
        if (returnCertificate) {
            request.putBoolean(true);
        }

        DerOutputStream out = new DerOutputStream();
        out.write(DerValue.tag_Sequence, request);
        return out.toByteArray();
    }
 

import sun.security.util.DerOutputStream; //导入方法依赖的package包/类
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();
}
 

import sun.security.util.DerOutputStream; //导入方法依赖的package包/类
/**
 * 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();
}
 

import sun.security.util.DerOutputStream; //导入方法依赖的package包/类
/**
 * DER encode this object onto an output stream.
 * Implements the <code>DerEncoder</code> 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());
}
 

import sun.security.util.DerOutputStream; //导入方法依赖的package包/类
/**
 * 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());
}
 

import sun.security.util.DerOutputStream; //导入方法依赖的package包/类
private void encodeThis() throws IOException {
    DerOutputStream out = new DerOutputStream();
    out.putInteger(skipCerts);
    this.extensionValue = out.toByteArray();
}