--- a/jdk/src/share/classes/sun/security/x509/X509Cert.java Wed Dec 16 23:39:39 2009 -0800
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,892 +0,0 @@
-/*
- * Copyright 1997-2008 Sun Microsystems, Inc. All Rights Reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation. Sun designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Sun in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- */
-
-package sun.security.x509;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
-import java.io.Serializable;
-import java.math.BigInteger;
-import java.security.*;
-import java.util.Date;
-import java.util.Enumeration;
-
-import sun.security.util.*; // DER
-
-/**
- * @author David Brownell
- *
- * @see CertAndKeyGen
- * @deprecated Use the new X509Certificate class.
- * This class is only restored for backwards compatibility.
- */
-@Deprecated
-public class X509Cert implements Certificate, Serializable {
-
- static final long serialVersionUID = -52595524744692374L;
-
- /*
- * NOTE: All fields are marked transient, because we do not want them to
- * be included in the class description when we serialize an object of
- * this class. We override "writeObject" and "readObject" to use the
- * ASN.1 encoding of a certificate as the serialized form, instead of
- * calling the default routines which would operate on the field values.
- *
- * MAKE SURE TO MARK ANY FIELDS THAT ARE ADDED IN THE FUTURE AS TRANSIENT.
- */
-
- /* The algorithm id */
- transient protected AlgorithmId algid;
-
- /*
- * Certificate data, and its envelope
- */
- transient private byte rawCert [];
- transient private byte signature [];
- transient private byte signedCert [];
-
- /*
- * X509.v1 data (parsed)
- */
- transient private X500Name subject; // from subject
- transient private PublicKey pubkey;
-
- transient private Date notafter; // from CA (constructor)
- transient private Date notbefore;
-
- transient private int version; // from CA (signAndEncode)
- transient private BigInteger serialnum;
- transient private X500Name issuer;
- transient private AlgorithmId issuerSigAlg;
-
- /*
- * flag to indicate whether or not this certificate has already been parsed
- * (through a call to one of the constructors or the "decode" or
- * "readObject" methods). This is to ensure that certificates are
- * immutable.
- */
- transient private boolean parsed=false;
-
- /*
- * X509.v2 extensions
- */
-
- /*
- * X509.v3 extensions
- */
-
- /*
- * Other extensions ... Netscape, Verisign, SET, etc
- */
-
-
- /**
- * Construct a uninitialized X509 Cert on which <a href="#decode">
- * decode</a> must later be called (or which may be deserialized).
- */
- // XXX deprecated, delete this
- public X509Cert() { }
-
-
- /**
- * Unmarshals a certificate from its encoded form, parsing the
- * encoded bytes. This form of constructor is used by agents which
- * need to examine and use certificate contents. That is, this is
- * one of the more commonly used constructors. Note that the buffer
- * must include only a certificate, and no "garbage" may be left at
- * the end. If you need to ignore data at the end of a certificate,
- * use another constructor.
- *
- * @param cert the encoded bytes, with no terminatu (CONSUMED)
- * @exception IOException when the certificate is improperly encoded.
- */
- public X509Cert(byte cert []) throws IOException
- {
- DerValue in = new DerValue (cert);
- parse (in);
- if (in.data.available () != 0)
- throw new CertParseError ("garbage at end");
- signedCert = cert;
- }
-
-
- /**
- * Unmarshals a certificate from its encoded form, parsing the
- * encoded bytes. This form of constructor is used by agents which
- * need to examine and use certificate contents. That is, this is
- * one of the most commonly used constructors.
- *
- * @param buf the buffer holding the encoded bytes
- * @param offset the offset in the buffer where the bytes begin
- * @param len how many bytes of certificate exist
- *
- * @exception IOException when the certificate is improperly encoded.
- */
- public X509Cert(byte buf [], int offset, int len) throws IOException
- {
- DerValue in = new DerValue (buf, offset, len);
-
- parse (in);
- if (in.data.available () != 0)
- throw new CertParseError ("garbage at end");
- signedCert = new byte [len];
- System.arraycopy (buf, offset, signedCert, 0, len);
- }
-
-
- /**
- * Unmarshal a certificate from its encoded form, parsing a DER value.
- * This form of constructor is used by agents which need to examine
- * and use certificate contents.
- *
- * @param derVal the der value containing the encoded cert.
- * @exception IOException when the certificate is improperly encoded.
- */
- public X509Cert(DerValue derVal) throws IOException
- {
- parse (derVal);
- if (derVal.data.available () != 0)
- throw new CertParseError ("garbage at end");
- signedCert = derVal.toByteArray ();
- }
-
-
- /**
- * Partially constructs a certificate from descriptive parameters.
- * This constructor may be used by Certificate Authority (CA) code,
- * which later <a href="#signAndEncode">signs and encodes</a> the
- * certificate. Also, self-signed certificates serve as CA certificates,
- * and are sometimes used as certificate requests.
- *
- * <P>Until the certificate has been signed and encoded, some of
- * the mandatory fields in the certificate will not be available
- * via accessor functions: the serial number, issuer name and signing
- * algorithm, and of course the signed certificate. The fields passed
- * to this constructor are available, and must be non-null.
- *
- * <P>Note that the public key being signed is generally independent of
- * the signature algorithm being used. So for example Diffie-Hellman
- * keys (which do not support signatures) can be placed in X.509
- * certificates when some other signature algorithm (e.g. DSS/DSA,
- * or one of the RSA based algorithms) is used.
- *
- * @see CertAndKeyGen
- *
- * @param subjectName the X.500 distinguished name being certified
- * @param subjectPublicKey the public key being certified. This
- * must be an "X509Key" implementing the "PublicKey" interface.
- * @param notBefore the first time the certificate is valid
- * @param notAfter the last time the certificate is valid
- *
- * @exception CertException if the public key is inappropriate
- */
- public X509Cert(X500Name subjectName, X509Key subjectPublicKey,
- Date notBefore, Date notAfter) throws CertException
- {
- subject = subjectName;
-
- if (!(subjectPublicKey instanceof PublicKey))
- throw new CertException (CertException.err_INVALID_PUBLIC_KEY,
- "Doesn't implement PublicKey interface");
-
- // The X509 cert API requires X509 keys, else things break.
- pubkey = subjectPublicKey;
- notbefore = notBefore;
- notafter = notAfter;
- version = 0;
- }
-
-
- /**
- * Decode an X.509 certificate from an input stream.
- *
- * @param in an input stream holding at least one certificate
- * @exception IOException when the certificate is improperly encoded, or
- * if it has already been parsed.
- */
- public void decode(InputStream in) throws IOException
- {
- DerValue val = new DerValue(in);
- parse(val);
- signedCert = val.toByteArray();
- }
-
-
- /**
- * Appends the certificate to an output stream.
- *
- * @param out an input stream to which the certificate is appended.
- * @exception IOException when appending fails.
- */
- public void encode (OutputStream out) throws IOException
- { out.write (getSignedCert ()); }
-
-
- /**
- * Compares two certificates. This is false if the
- * certificates are not both X.509 certs, otherwise it
- * compares them as binary data.
- *
- * @param other the object being compared with this one
- * @return true iff the certificates are equivalent
- */
- public boolean equals (Object other)
- {
- if (other instanceof X509Cert)
- return equals ((X509Cert) other);
- else
- return false;
- }
-
-
- /**
- * Compares two certificates, returning false if any data
- * differs between the two.
- *
- * @param other the object being compared with this one
- * @return true iff the certificates are equivalent
- */
- public boolean equals (X509Cert src)
- {
- if (this == src)
- return true;
- if (signedCert == null || src.signedCert == null)
- return false;
- if (signedCert.length != src.signedCert.length)
- return false;
- for (int i = 0; i < signedCert.length; i++)
- if (signedCert [i] != src.signedCert [i])
- return false;
- return true;
- }
-
-
- /** Returns the "X.509" format identifier. */
- public String getFormat () // for Certificate
- { return "X.509"; }
-
-
- /** Returns <a href="#getIssuerName">getIssuerName</a> */
- public Principal getGuarantor () // for Certificate
- { return getIssuerName (); }
-
-
- /** Returns <a href="#getSubjectName">getSubjectName</a> */
- public Principal getPrincipal ()
- { return getSubjectName (); }
-
-
- /**
- * Throws an exception if the certificate is invalid because it is
- * now outside of the certificate's validity period, or because it
- * was not signed using the verification key provided. Successfully
- * verifying a certificate does <em>not</em> indicate that one should
- * trust the entity which it represents.
- *
- * <P><em>Note that since this class represents only a single X.509
- * certificate, it cannot know anything about the certificate chain
- * which is used to provide the verification key and to establish trust.
- * Other code must manage and use those cert chains.
- *
- * <P>For now, you must walk the cert chain being used to verify any
- * given cert. Start at the root, which is a self-signed certificate;
- * verify it using the key inside the certificate. Then use that to
- * verify the next certificate in the chain, issued by that CA. In
- * this manner, verify each certificate until you reach the particular
- * certificate you wish to verify. You should not use a certificate
- * if any of the verification operations for its certificate chain
- * were unsuccessful.
- * </em>
- *
- * @param issuerPublicKey the public key of the issuing CA
- * @exception CertException when the certificate is not valid.
- */
- public void verify (PublicKey issuerPublicKey)
- throws CertException
- {
- Date now = new Date ();
-
- if (now.before (notbefore))
- throw new CertException (CertException.verf_INVALID_NOTBEFORE);
- if (now.after (notafter))
- throw new CertException (CertException.verf_INVALID_EXPIRED);
- if (signedCert == null)
- throw new CertException (CertException.verf_INVALID_SIG,
- "?? certificate is not signed yet ??");
-
- //
- // Verify the signature ...
- //
- String algName = null;
-
- try {
- Signature sigVerf = null;
-
- algName = issuerSigAlg.getName();
- sigVerf = Signature.getInstance(algName);
- sigVerf.initVerify (issuerPublicKey);
- sigVerf.update (rawCert, 0, rawCert.length);
-
- if (!sigVerf.verify (signature)) {
- throw new CertException (CertException.verf_INVALID_SIG,
- "Signature ... by <" + issuer + "> for <" + subject + ">");
- }
-
- // Gag -- too many catch clauses, let most through.
-
- } catch (NoSuchAlgorithmException e) {
- throw new CertException (CertException.verf_INVALID_SIG,
- "Unsupported signature algorithm (" + algName + ")");
-
- } catch (InvalidKeyException e) {
- // e.printStackTrace();
- throw new CertException (CertException.err_INVALID_PUBLIC_KEY,
- "Algorithm (" + algName + ") rejected public key");
-
- } catch (SignatureException e) {
- throw new CertException (CertException.verf_INVALID_SIG,
- "Signature by <" + issuer + "> for <" + subject + ">");
- }
- }
-
-
- /**
- * Creates an X.509 certificate, and signs it using the issuer
- * passed (associating a signature algorithm and an X.500 name).
- * This operation is used to implement the certificate generation
- * functionality of a certificate authority.
- *
- * @see #getSignedCert
- * @see #getSigner
- * @see CertAndKeyGen
- *
- * @param serial the serial number of the certificate (non-null)
- * @param issuer the certificate issuer (CA) (non-null)
- * @return the signed certificate, as returned by getSignedCert
- *
- * @exception IOException if any of the data could not be encoded,
- * or when any mandatory data was omitted
- * @exception SignatureException on signing failures
- */
- public byte []
- encodeAndSign (
- BigInteger serial,
- X500Signer issuer
- ) throws IOException, SignatureException
- {
- rawCert = null;
-
- /*
- * Get the remaining cert parameters, and make sure we have enough.
- *
- * We deduce version based on what attribute data are available
- * For now, we have no attributes, so we always deduce X.509v1 !
- */
- version = 0;
- serialnum = serial;
- this.issuer = issuer.getSigner ();
- issuerSigAlg = issuer.getAlgorithmId ();
-
- if (subject == null || pubkey == null
- || notbefore == null || notafter == null)
- throw new IOException ("not enough cert parameters");
-
- /*
- * Encode the raw cert, create its signature and put it
- * into the envelope.
- */
- rawCert = DERencode ();
- signedCert = sign (issuer, rawCert);
- return signedCert;
- }
-
-
- /**
- * Returns an X500Signer that may be used to create signatures. Those
- * signature may in turn be verified using this certificate (or a
- * copy of it).
- *
- * <P><em><b>NOTE:</b> If the private key is by itself capable of
- * creating signatures, this fact may not be recognized at this time.
- * Specifically, the case of DSS/DSA keys which get their algorithm
- * parameters from higher in the certificate chain is not supportable
- * without using an X509CertChain API, and there is no current support
- * for other sources of algorithm parameters.</em>
- *
- * @param algorithm the signature algorithm to be used. Note that a
- * given public/private key pair may support several such algorithms.
- * @param privateKey the private key used to create the signature,
- * which must correspond to the public key in this certificate
- * @return the Signer object
- *
- * @exception NoSuchAlgorithmException if the signature
- * algorithm is not supported
- * @exception InvalidKeyException if either the key in the certificate,
- * or the private key parameter, does not support the requested
- * signature algorithm
- */
- public X500Signer getSigner (AlgorithmId algorithmId,
- PrivateKey privateKey)
- throws NoSuchAlgorithmException, InvalidKeyException
- {
- String algorithm;
- Signature sig;
-
- if (privateKey instanceof Key) {
- Key key = (Key)privateKey;
- algorithm = key.getAlgorithm();
- } else {
- throw new InvalidKeyException("private key not a key!");
- }
-
- sig = Signature.getInstance(algorithmId.getName());
-
- if (!pubkey.getAlgorithm ().equals (algorithm)) {
-
- throw new InvalidKeyException( "Private key algorithm " +
- algorithm +
- " incompatible with certificate " +
- pubkey.getAlgorithm());
- }
- sig.initSign (privateKey);
- return new X500Signer (sig, subject);
- }
-
-
- /**
- * Returns a signature object that may be used to verify signatures
- * created using a specified signature algorithm and the public key
- * contained in this certificate.
- *
- * <P><em><b>NOTE:</b> If the public key in this certificate is not by
- * itself capable of verifying signatures, this may not be recognized
- * at this time. Specifically, the case of DSS/DSA keys which get
- * their algorithm parameters from higher in the certificate chain
- * is not supportable without using an X509CertChain API, and there
- * is no current support for other sources of algorithm parameters.</em>
- *
- * @param algorithm the algorithm of the signature to be verified
- * @return the Signature object
- * @exception NoSuchAlgorithmException if the signature
- * algorithm is not supported
- * @exception InvalidKeyException if the key in the certificate
- * does not support the requested signature algorithm
- */
- public Signature getVerifier(String algorithm)
- throws NoSuchAlgorithmException, InvalidKeyException
- {
- String algName;
- Signature sig;
-
- sig = Signature.getInstance(algorithm);
- sig.initVerify (pubkey);
- return sig;
- }
-
-
-
- /**
- * Return the signed X.509 certificate as a byte array.
- * The bytes are in standard DER marshaled form.
- * Null is returned in the case of a partially constructed cert.
- */
- public byte [] getSignedCert ()
- { return signedCert.clone(); }
-
-
- /**
- * Returns the certificate's serial number.
- * Null is returned in the case of a partially constructed cert.
- */
- public BigInteger getSerialNumber ()
- { return serialnum; }
-
-
- /**
- * Returns the subject's X.500 distinguished name.
- */
- public X500Name getSubjectName ()
- { return subject; }
-
-
- /**
- * Returns the certificate issuer's X.500 distinguished name.
- * Null is returned in the case of a partially constructed cert.
- */
- public X500Name getIssuerName ()
- { return issuer; }
-
-
- /**
- * Returns the algorithm used by the issuer to sign the certificate.
- * Null is returned in the case of a partially constructed cert.
- */
- public AlgorithmId getIssuerAlgorithmId ()
- { return issuerSigAlg; }
-
-
- /**
- * Returns the first time the certificate is valid.
- */
- public Date getNotBefore ()
- { return new Date(notbefore.getTime()); }
-
-
- /**
- * Returns the last time the certificate is valid.
- */
- public Date getNotAfter ()
- { return new Date(notafter.getTime()); }
-
-
- /**
- * Returns the subject's public key. Note that some public key
- * algorithms support an optional certificate generation policy
- * where the keys in the certificates are not in themselves sufficient
- * to perform a public key operation. Those keys need to be augmented
- * by algorithm parameters, which the certificate generation policy
- * chose not to place in the certificate.
- *
- * <P>Two such public key algorithms are: DSS/DSA, where algorithm
- * parameters could be acquired from a CA certificate in the chain
- * of issuers; and Diffie-Hellman, with a similar solution although
- * the CA then needs both a Diffie-Hellman certificate and a signature
- * capable certificate.
- */
- public PublicKey getPublicKey ()
- { return pubkey; }
-
-
- /**
- * Returns the X.509 version number of this certificate, zero based.
- * That is, "2" indicates an X.509 version 3 (1993) certificate,
- * and "0" indicates X.509v1 (1988).
- * Zero is returned in the case of a partially constructed cert.
- */
- public int getVersion ()
- { return version; }
-
-
- /**
- * Calculates a hash code value for the object. Objects
- * which are equal will also have the same hashcode.
- */
- public int hashCode ()
- {
- int retval = 0;
-
- for (int i = 0; i < signedCert.length; i++)
- retval += signedCert [i] * i;
- return retval;
- }
-
-
- /**
- * Returns a printable representation of the certificate. This does not
- * contain all the information available to distinguish this from any
- * other certificate. The certificate must be fully constructed
- * before this function may be called; in particular, if you are
- * creating certificates you must call encodeAndSign() before calling
- * this function.
- */
- public String toString ()
- {
- String s;
-
- if (subject == null || pubkey == null
- || notbefore == null || notafter == null
- || issuer == null || issuerSigAlg == null
- || serialnum == null)
- throw new NullPointerException ("X.509 cert is incomplete");
-
- s = " X.509v" + (version + 1) + " certificate,\n";
- s += " Subject is " + subject + "\n";
- s += " Key: " + pubkey;
- s += " Validity <" + notbefore + "> until <" + notafter + ">\n";
- s += " Issuer is " + issuer + "\n";
- s += " Issuer signature used " + issuerSigAlg.toString () + "\n";
- s += " Serial number = " + Debug.toHexString(serialnum) + "\n";
-
- // optional v2, v3 extras
-
- return "[\n" + s + "]";
- }
-
-
- /**
- * Returns a printable representation of the certificate.
- *
- * @param detailed true iff lots of detail is requested
- */
- public String toString (boolean detailed)
- { return toString (); }
-
-
- /************************************************************/
-
- /*
- * Cert is a SIGNED ASN.1 macro, a three elment sequence:
- *
- * - Data to be signed (ToBeSigned) -- the "raw" cert
- * - Signature algorithm (SigAlgId)
- * - The signature bits
- *
- * This routine unmarshals the certificate, saving the signature
- * parts away for later verification.
- */
- private void parse (DerValue val) throws IOException
- {
- if (parsed == true) {
- throw new IOException("Certificate already parsed");
- }
-
- DerValue seq [] = new DerValue [3];
-
- seq [0] = val.data.getDerValue ();
- seq [1] = val.data.getDerValue ();
- seq [2] = val.data.getDerValue ();
-
- if (val.data.available () != 0)
- throw new CertParseError ("signed overrun, bytes = "
- + val.data.available ());
- if (seq [0].tag != DerValue.tag_Sequence)
- throw new CertParseError ("signed fields invalid");
-
- rawCert = seq [0].toByteArray (); // XXX slow; fixme!
-
-
- issuerSigAlg = AlgorithmId.parse (seq [1]);
- signature = seq [2].getBitString ();
-
- if (seq [1].data.available () != 0) {
- // XXX why was this error check commented out?
- // It was originally part of the next check.
- throw new CertParseError ("algid field overrun");
- }
-
- if (seq [2].data.available () != 0)
- throw new CertParseError ("signed fields overrun");
-
- /*
- * Let's have fun parsing the cert itself.
- */
- DerInputStream in;
- DerValue tmp;
-
- in = seq [0].data;
-
- /*
- * Version -- this is optional (default zero). If it's there it's
- * the first field and is specially tagged.
- *
- * Both branches leave "tmp" holding a value for the serial
- * number that comes next.
- */
- version = 0;
- tmp = in.getDerValue ();
- if (tmp.isConstructed () && tmp.isContextSpecific ()) {
- version = tmp.data.getInteger();
- if (tmp.data.available () != 0)
- throw new IOException ("X.509 version, bad format");
- tmp = in.getDerValue ();
- }
-
- /*
- * serial number ... an integer
- */
- serialnum = tmp.getBigInteger ();
-
- /*
- * algorithm type for CA's signature ... needs to match the
- * one on the envelope, and that's about it! different IDs
- * may represent a signature attack. In general we want to
- * inherit parameters.
- */
- tmp = in.getDerValue ();
- {
- AlgorithmId algid;
-
-
- algid = AlgorithmId.parse(tmp);
-
- if (!algid.equals (issuerSigAlg))
- throw new CertParseError ("CA Algorithm mismatch!");
-
- this.algid = algid;
- }
-
- /*
- * issuer name
- */
- issuer = new X500Name (in);
-
- /*
- * validity: SEQUENCE { start date, end date }
- */
- tmp = in.getDerValue ();
- if (tmp.tag != DerValue.tag_Sequence)
- throw new CertParseError ("corrupt validity field");
-
- notbefore = tmp.data.getUTCTime ();
- notafter = tmp.data.getUTCTime ();
- if (tmp.data.available () != 0)
- throw new CertParseError ("excess validity data");
-
- /*
- * subject name and public key
- */
- subject = new X500Name (in);
-
- tmp = in.getDerValue ();
- pubkey = X509Key.parse (tmp);
-
- /*
- * XXX for v2 and later, a bunch of tagged options follow
- */
-
- if (in.available () != 0) {
- /*
- * Until we parse V2/V3 data ... ignore it.
- *
- // throw new CertParseError ("excess cert data");
- System.out.println (
- "@end'o'cert, optional V2/V3 data unparsed: "
- + in.available ()
- + " bytes"
- );
- */
- }
-
- parsed = true;
- }
-
-
- /*
- * Encode only the parts that will later be signed.
- */
- private byte [] DERencode () throws IOException
- {
- DerOutputStream raw = new DerOutputStream ();
-
- encode (raw);
- return raw.toByteArray ();
- }
-
-
- /*
- * Marshal the contents of a "raw" certificate into a DER sequence.
- */
- private void encode (DerOutputStream out) throws IOException
- {
- DerOutputStream tmp = new DerOutputStream ();
-
- /*
- * encode serial number, issuer signing algorithm,
- * and issuer name into the data we'll return
- */
- tmp.putInteger (serialnum);
- issuerSigAlg.encode (tmp);
- issuer.encode (tmp);
-
- /*
- * Validity is a two element sequence ... encode the
- * elements, then wrap them into the data we'll return
- */
- {
- DerOutputStream seq = new DerOutputStream ();
-
- seq.putUTCTime (notbefore);
- seq.putUTCTime (notafter);
- tmp.write (DerValue.tag_Sequence, seq);
- }
-
- /*
- * Encode subject (principal) and associated key
- */
- subject.encode (tmp);
- tmp.write(pubkey.getEncoded());
-
- /*
- * Wrap the data; encoding of the "raw" cert is now complete.
- */
- out.write (DerValue.tag_Sequence, tmp);
- }
-
-
- /*
- * Calculate the signature of the "raw" certificate,
- * and marshal the cert with the signature and a
- * description of the signing algorithm.
- */
- private byte [] sign (X500Signer issuer, byte data [])
- throws IOException, SignatureException
- {
- /*
- * Encode the to-be-signed data, then the algorithm used
- * to create the signature.
- */
- DerOutputStream out = new DerOutputStream ();
- DerOutputStream tmp = new DerOutputStream ();
-
- tmp.write (data);
- issuer.getAlgorithmId ().encode(tmp);
-
-
- /*
- * Create and encode the signature itself.
- */
- issuer.update (data, 0, data.length);
- signature = issuer.sign ();
- tmp.putBitString (signature);
-
- /*
- * Wrap the signed data in a SEQUENCE { data, algorithm, sig }
- */
- out.write (DerValue.tag_Sequence, tmp);
- return out.toByteArray ();
- }
-
-
- /**
- * Serialization write ... X.509 certificates serialize as
- * themselves, and they're parsed when they get read back.
- * (Actually they serialize as some type data from the
- * serialization subsystem, then the cert data.)
- */
- private void writeObject (java.io.ObjectOutputStream stream)
- throws IOException
- { encode(stream); }
-
- /**
- * Serialization read ... X.509 certificates serialize as
- * themselves, and they're parsed when they get read back.
- */
- private void readObject (ObjectInputStream stream)
- throws IOException
- { decode(stream); }
-}