Java example source code file (P11Key.java)
The P11Key.java Java example source code
/*
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* 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle 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.
*
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package sun.security.pkcs11;
import java.io.*;
import java.lang.ref.*;
import java.math.BigInteger;
import java.util.*;
import java.security.*;
import java.security.interfaces.*;
import java.security.spec.*;
import javax.crypto.*;
import javax.crypto.interfaces.*;
import javax.crypto.spec.*;
import sun.security.rsa.RSAPublicKeyImpl;
import sun.security.internal.interfaces.TlsMasterSecret;
import sun.security.pkcs11.wrapper.*;
import static sun.security.pkcs11.wrapper.PKCS11Constants.*;
import sun.security.util.DerValue;
import sun.security.util.Length;
import sun.security.util.ECUtil;
/**
* Key implementation classes.
*
* In PKCS#11, the components of private and secret keys may or may not
* be accessible. If they are, we use the algorithm specific key classes
* (e.g. DSAPrivateKey) for compatibility with existing applications.
* If the components are not accessible, we use a generic class that
* only implements PrivateKey (or SecretKey). Whether the components of a
* key are extractable is automatically determined when the key object is
* created.
*
* @author Andreas Sterbenz
* @since 1.5
*/
abstract class P11Key implements Key, Length {
private static final long serialVersionUID = -2575874101938349339L;
private final static String PUBLIC = "public";
private final static String PRIVATE = "private";
private final static String SECRET = "secret";
// type of key, one of (PUBLIC, PRIVATE, SECRET)
final String type;
// token instance
final Token token;
// algorithm name, returned by getAlgorithm(), etc.
final String algorithm;
// key id
final long keyID;
// effective key length of the key, e.g. 56 for a DES key
final int keyLength;
// flags indicating whether the key is a token object, sensitive, extractable
final boolean tokenObject, sensitive, extractable;
// phantom reference notification clean up for session keys
private final SessionKeyRef sessionKeyRef;
P11Key(String type, Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes) {
this.type = type;
this.token = session.token;
this.keyID = keyID;
this.algorithm = algorithm;
this.keyLength = keyLength;
boolean tokenObject = false;
boolean sensitive = false;
boolean extractable = true;
int n = (attributes == null) ? 0 : attributes.length;
for (int i = 0; i < n; i++) {
CK_ATTRIBUTE attr = attributes[i];
if (attr.type == CKA_TOKEN) {
tokenObject = attr.getBoolean();
} else if (attr.type == CKA_SENSITIVE) {
sensitive = attr.getBoolean();
} else if (attr.type == CKA_EXTRACTABLE) {
extractable = attr.getBoolean();
}
}
this.tokenObject = tokenObject;
this.sensitive = sensitive;
this.extractable = extractable;
if (tokenObject == false) {
sessionKeyRef = new SessionKeyRef(this, keyID, session);
} else {
sessionKeyRef = null;
}
}
// see JCA spec
public final String getAlgorithm() {
token.ensureValid();
return algorithm;
}
// see JCA spec
public final byte[] getEncoded() {
byte[] b = getEncodedInternal();
return (b == null) ? null : b.clone();
}
abstract byte[] getEncodedInternal();
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
// equals() should never throw exceptions
if (token.isValid() == false) {
return false;
}
if (obj instanceof Key == false) {
return false;
}
String thisFormat = getFormat();
if (thisFormat == null) {
// no encoding, key only equal to itself
// XXX getEncoded() for unextractable keys will change that
return false;
}
Key other = (Key)obj;
if (thisFormat.equals(other.getFormat()) == false) {
return false;
}
byte[] thisEnc = this.getEncodedInternal();
byte[] otherEnc;
if (obj instanceof P11Key) {
otherEnc = ((P11Key)other).getEncodedInternal();
} else {
otherEnc = other.getEncoded();
}
return Arrays.equals(thisEnc, otherEnc);
}
public int hashCode() {
// hashCode() should never throw exceptions
if (token.isValid() == false) {
return 0;
}
byte[] b1 = getEncodedInternal();
if (b1 == null) {
return 0;
}
int r = b1.length;
for (int i = 0; i < b1.length; i++) {
r += (b1[i] & 0xff) * 37;
}
return r;
}
protected Object writeReplace() throws ObjectStreamException {
KeyRep.Type type;
String format = getFormat();
if (isPrivate() && "PKCS#8".equals(format)) {
type = KeyRep.Type.PRIVATE;
} else if (isPublic() && "X.509".equals(format)) {
type = KeyRep.Type.PUBLIC;
} else if (isSecret() && "RAW".equals(format)) {
type = KeyRep.Type.SECRET;
} else {
// XXX short term serialization for unextractable keys
throw new NotSerializableException
("Cannot serialize sensitive and unextractable keys");
}
return new KeyRep(type, getAlgorithm(), format, getEncoded());
}
public String toString() {
token.ensureValid();
String s1 = token.provider.getName() + " " + algorithm + " " + type
+ " key, " + keyLength + " bits";
s1 += " (id " + keyID + ", "
+ (tokenObject ? "token" : "session") + " object";
if (isPublic()) {
s1 += ")";
} else {
s1 += ", " + (sensitive ? "" : "not ") + "sensitive";
s1 += ", " + (extractable ? "" : "un") + "extractable)";
}
return s1;
}
/**
* Return bit length of the key.
*/
@Override
public int length() {
return keyLength;
}
boolean isPublic() {
return type == PUBLIC;
}
boolean isPrivate() {
return type == PRIVATE;
}
boolean isSecret() {
return type == SECRET;
}
void fetchAttributes(CK_ATTRIBUTE[] attributes) {
Session tempSession = null;
try {
tempSession = token.getOpSession();
token.p11.C_GetAttributeValue(tempSession.id(), keyID, attributes);
} catch (PKCS11Exception e) {
throw new ProviderException(e);
} finally {
token.releaseSession(tempSession);
}
}
private final static CK_ATTRIBUTE[] A0 = new CK_ATTRIBUTE[0];
private static CK_ATTRIBUTE[] getAttributes(Session session, long keyID,
CK_ATTRIBUTE[] knownAttributes, CK_ATTRIBUTE[] desiredAttributes) {
if (knownAttributes == null) {
knownAttributes = A0;
}
for (int i = 0; i < desiredAttributes.length; i++) {
// For each desired attribute, check to see if we have the value
// available already. If everything is here, we save a native call.
CK_ATTRIBUTE attr = desiredAttributes[i];
for (CK_ATTRIBUTE known : knownAttributes) {
if ((attr.type == known.type) && (known.pValue != null)) {
attr.pValue = known.pValue;
break; // break inner for loop
}
}
if (attr.pValue == null) {
// nothing found, need to call C_GetAttributeValue()
for (int j = 0; j < i; j++) {
// clear values copied from knownAttributes
desiredAttributes[j].pValue = null;
}
try {
session.token.p11.C_GetAttributeValue
(session.id(), keyID, desiredAttributes);
} catch (PKCS11Exception e) {
throw new ProviderException(e);
}
break; // break loop, goto return
}
}
return desiredAttributes;
}
static SecretKey secretKey(Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes) {
attributes = getAttributes(session, keyID, attributes, new CK_ATTRIBUTE[] {
new CK_ATTRIBUTE(CKA_TOKEN),
new CK_ATTRIBUTE(CKA_SENSITIVE),
new CK_ATTRIBUTE(CKA_EXTRACTABLE),
});
return new P11SecretKey(session, keyID, algorithm, keyLength, attributes);
}
static SecretKey masterSecretKey(Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes, int major, int minor) {
attributes = getAttributes(session, keyID, attributes, new CK_ATTRIBUTE[] {
new CK_ATTRIBUTE(CKA_TOKEN),
new CK_ATTRIBUTE(CKA_SENSITIVE),
new CK_ATTRIBUTE(CKA_EXTRACTABLE),
});
return new P11TlsMasterSecretKey
(session, keyID, algorithm, keyLength, attributes, major, minor);
}
// we assume that all components of public keys are always accessible
static PublicKey publicKey(Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes) {
switch (algorithm) {
case "RSA":
return new P11RSAPublicKey
(session, keyID, algorithm, keyLength, attributes);
case "DSA":
return new P11DSAPublicKey
(session, keyID, algorithm, keyLength, attributes);
case "DH":
return new P11DHPublicKey
(session, keyID, algorithm, keyLength, attributes);
case "EC":
return new P11ECPublicKey
(session, keyID, algorithm, keyLength, attributes);
default:
throw new ProviderException
("Unknown public key algorithm " + algorithm);
}
}
static PrivateKey privateKey(Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes) {
attributes = getAttributes(session, keyID, attributes, new CK_ATTRIBUTE[] {
new CK_ATTRIBUTE(CKA_TOKEN),
new CK_ATTRIBUTE(CKA_SENSITIVE),
new CK_ATTRIBUTE(CKA_EXTRACTABLE),
});
if (attributes[1].getBoolean() || (attributes[2].getBoolean() == false)) {
return new P11PrivateKey
(session, keyID, algorithm, keyLength, attributes);
} else {
switch (algorithm) {
case "RSA":
// XXX better test for RSA CRT keys (single getAttributes() call)
// we need to determine whether this is a CRT key
// see if we can obtain the public exponent
// this should also be readable for sensitive/extractable keys
CK_ATTRIBUTE[] attrs2 = new CK_ATTRIBUTE[] {
new CK_ATTRIBUTE(CKA_PUBLIC_EXPONENT),
};
boolean crtKey;
try {
session.token.p11.C_GetAttributeValue
(session.id(), keyID, attrs2);
crtKey = (attrs2[0].pValue instanceof byte[]);
} catch (PKCS11Exception e) {
// ignore, assume not available
crtKey = false;
}
if (crtKey) {
return new P11RSAPrivateKey
(session, keyID, algorithm, keyLength, attributes);
} else {
return new P11RSAPrivateNonCRTKey
(session, keyID, algorithm, keyLength, attributes);
}
case "DSA":
return new P11DSAPrivateKey
(session, keyID, algorithm, keyLength, attributes);
case "DH":
return new P11DHPrivateKey
(session, keyID, algorithm, keyLength, attributes);
case "EC":
return new P11ECPrivateKey
(session, keyID, algorithm, keyLength, attributes);
default:
throw new ProviderException
("Unknown private key algorithm " + algorithm);
}
}
}
// class for sensitive and unextractable private keys
private static final class P11PrivateKey extends P11Key
implements PrivateKey {
private static final long serialVersionUID = -2138581185214187615L;
P11PrivateKey(Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes) {
super(PRIVATE, session, keyID, algorithm, keyLength, attributes);
}
// XXX temporary encoding for serialization purposes
public String getFormat() {
token.ensureValid();
return null;
}
byte[] getEncodedInternal() {
token.ensureValid();
return null;
}
}
private static class P11SecretKey extends P11Key implements SecretKey {
private static final long serialVersionUID = -7828241727014329084L;
private volatile byte[] encoded;
P11SecretKey(Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes) {
super(SECRET, session, keyID, algorithm, keyLength, attributes);
}
public String getFormat() {
token.ensureValid();
if (sensitive || (extractable == false)) {
return null;
} else {
return "RAW";
}
}
byte[] getEncodedInternal() {
token.ensureValid();
if (getFormat() == null) {
return null;
}
byte[] b = encoded;
if (b == null) {
synchronized (this) {
b = encoded;
if (b == null) {
Session tempSession = null;
try {
tempSession = token.getOpSession();
CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
new CK_ATTRIBUTE(CKA_VALUE),
};
token.p11.C_GetAttributeValue
(tempSession.id(), keyID, attributes);
b = attributes[0].getByteArray();
} catch (PKCS11Exception e) {
throw new ProviderException(e);
} finally {
token.releaseSession(tempSession);
}
encoded = b;
}
}
}
return b;
}
}
private static class P11TlsMasterSecretKey extends P11SecretKey
implements TlsMasterSecret {
private static final long serialVersionUID = -1318560923770573441L;
private final int majorVersion, minorVersion;
P11TlsMasterSecretKey(Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes, int major, int minor) {
super(session, keyID, algorithm, keyLength, attributes);
this.majorVersion = major;
this.minorVersion = minor;
}
public int getMajorVersion() {
return majorVersion;
}
public int getMinorVersion() {
return minorVersion;
}
}
// RSA CRT private key
private static final class P11RSAPrivateKey extends P11Key
implements RSAPrivateCrtKey {
private static final long serialVersionUID = 9215872438913515220L;
private BigInteger n, e, d, p, q, pe, qe, coeff;
private byte[] encoded;
P11RSAPrivateKey(Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes) {
super(PRIVATE, session, keyID, algorithm, keyLength, attributes);
}
private synchronized void fetchValues() {
token.ensureValid();
if (n != null) {
return;
}
CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
new CK_ATTRIBUTE(CKA_MODULUS),
new CK_ATTRIBUTE(CKA_PUBLIC_EXPONENT),
new CK_ATTRIBUTE(CKA_PRIVATE_EXPONENT),
new CK_ATTRIBUTE(CKA_PRIME_1),
new CK_ATTRIBUTE(CKA_PRIME_2),
new CK_ATTRIBUTE(CKA_EXPONENT_1),
new CK_ATTRIBUTE(CKA_EXPONENT_2),
new CK_ATTRIBUTE(CKA_COEFFICIENT),
};
fetchAttributes(attributes);
n = attributes[0].getBigInteger();
e = attributes[1].getBigInteger();
d = attributes[2].getBigInteger();
p = attributes[3].getBigInteger();
q = attributes[4].getBigInteger();
pe = attributes[5].getBigInteger();
qe = attributes[6].getBigInteger();
coeff = attributes[7].getBigInteger();
}
public String getFormat() {
token.ensureValid();
return "PKCS#8";
}
synchronized byte[] getEncodedInternal() {
token.ensureValid();
if (encoded == null) {
fetchValues();
try {
// XXX make constructor in SunRsaSign provider public
// and call it directly
KeyFactory factory = KeyFactory.getInstance
("RSA", P11Util.getSunRsaSignProvider());
Key newKey = factory.translateKey(this);
encoded = newKey.getEncoded();
} catch (GeneralSecurityException e) {
throw new ProviderException(e);
}
}
return encoded;
}
public BigInteger getModulus() {
fetchValues();
return n;
}
public BigInteger getPublicExponent() {
fetchValues();
return e;
}
public BigInteger getPrivateExponent() {
fetchValues();
return d;
}
public BigInteger getPrimeP() {
fetchValues();
return p;
}
public BigInteger getPrimeQ() {
fetchValues();
return q;
}
public BigInteger getPrimeExponentP() {
fetchValues();
return pe;
}
public BigInteger getPrimeExponentQ() {
fetchValues();
return qe;
}
public BigInteger getCrtCoefficient() {
fetchValues();
return coeff;
}
}
// RSA non-CRT private key
private static final class P11RSAPrivateNonCRTKey extends P11Key
implements RSAPrivateKey {
private static final long serialVersionUID = 1137764983777411481L;
private BigInteger n, d;
private byte[] encoded;
P11RSAPrivateNonCRTKey(Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes) {
super(PRIVATE, session, keyID, algorithm, keyLength, attributes);
}
private synchronized void fetchValues() {
token.ensureValid();
if (n != null) {
return;
}
CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
new CK_ATTRIBUTE(CKA_MODULUS),
new CK_ATTRIBUTE(CKA_PRIVATE_EXPONENT),
};
fetchAttributes(attributes);
n = attributes[0].getBigInteger();
d = attributes[1].getBigInteger();
}
public String getFormat() {
token.ensureValid();
return "PKCS#8";
}
synchronized byte[] getEncodedInternal() {
token.ensureValid();
if (encoded == null) {
fetchValues();
try {
// XXX make constructor in SunRsaSign provider public
// and call it directly
KeyFactory factory = KeyFactory.getInstance
("RSA", P11Util.getSunRsaSignProvider());
Key newKey = factory.translateKey(this);
encoded = newKey.getEncoded();
} catch (GeneralSecurityException e) {
throw new ProviderException(e);
}
}
return encoded;
}
public BigInteger getModulus() {
fetchValues();
return n;
}
public BigInteger getPrivateExponent() {
fetchValues();
return d;
}
}
private static final class P11RSAPublicKey extends P11Key
implements RSAPublicKey {
private static final long serialVersionUID = -826726289023854455L;
private BigInteger n, e;
private byte[] encoded;
P11RSAPublicKey(Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes) {
super(PUBLIC, session, keyID, algorithm, keyLength, attributes);
}
private synchronized void fetchValues() {
token.ensureValid();
if (n != null) {
return;
}
CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
new CK_ATTRIBUTE(CKA_MODULUS),
new CK_ATTRIBUTE(CKA_PUBLIC_EXPONENT),
};
fetchAttributes(attributes);
n = attributes[0].getBigInteger();
e = attributes[1].getBigInteger();
}
public String getFormat() {
token.ensureValid();
return "X.509";
}
synchronized byte[] getEncodedInternal() {
token.ensureValid();
if (encoded == null) {
fetchValues();
try {
encoded = new RSAPublicKeyImpl(n, e).getEncoded();
} catch (InvalidKeyException e) {
throw new ProviderException(e);
}
}
return encoded;
}
public BigInteger getModulus() {
fetchValues();
return n;
}
public BigInteger getPublicExponent() {
fetchValues();
return e;
}
public String toString() {
fetchValues();
return super.toString() + "\n modulus: " + n
+ "\n public exponent: " + e;
}
}
private static final class P11DSAPublicKey extends P11Key
implements DSAPublicKey {
private static final long serialVersionUID = 5989753793316396637L;
private BigInteger y;
private DSAParams params;
private byte[] encoded;
P11DSAPublicKey(Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes) {
super(PUBLIC, session, keyID, algorithm, keyLength, attributes);
}
private synchronized void fetchValues() {
token.ensureValid();
if (y != null) {
return;
}
CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
new CK_ATTRIBUTE(CKA_VALUE),
new CK_ATTRIBUTE(CKA_PRIME),
new CK_ATTRIBUTE(CKA_SUBPRIME),
new CK_ATTRIBUTE(CKA_BASE),
};
fetchAttributes(attributes);
y = attributes[0].getBigInteger();
params = new DSAParameterSpec(
attributes[1].getBigInteger(),
attributes[2].getBigInteger(),
attributes[3].getBigInteger()
);
}
public String getFormat() {
token.ensureValid();
return "X.509";
}
synchronized byte[] getEncodedInternal() {
token.ensureValid();
if (encoded == null) {
fetchValues();
try {
Key key = new sun.security.provider.DSAPublicKey
(y, params.getP(), params.getQ(), params.getG());
encoded = key.getEncoded();
} catch (InvalidKeyException e) {
throw new ProviderException(e);
}
}
return encoded;
}
public BigInteger getY() {
fetchValues();
return y;
}
public DSAParams getParams() {
fetchValues();
return params;
}
public String toString() {
fetchValues();
return super.toString() + "\n y: " + y + "\n p: " + params.getP()
+ "\n q: " + params.getQ() + "\n g: " + params.getG();
}
}
private static final class P11DSAPrivateKey extends P11Key
implements DSAPrivateKey {
private static final long serialVersionUID = 3119629997181999389L;
private BigInteger x;
private DSAParams params;
private byte[] encoded;
P11DSAPrivateKey(Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes) {
super(PRIVATE, session, keyID, algorithm, keyLength, attributes);
}
private synchronized void fetchValues() {
token.ensureValid();
if (x != null) {
return;
}
CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
new CK_ATTRIBUTE(CKA_VALUE),
new CK_ATTRIBUTE(CKA_PRIME),
new CK_ATTRIBUTE(CKA_SUBPRIME),
new CK_ATTRIBUTE(CKA_BASE),
};
fetchAttributes(attributes);
x = attributes[0].getBigInteger();
params = new DSAParameterSpec(
attributes[1].getBigInteger(),
attributes[2].getBigInteger(),
attributes[3].getBigInteger()
);
}
public String getFormat() {
token.ensureValid();
return "PKCS#8";
}
synchronized byte[] getEncodedInternal() {
token.ensureValid();
if (encoded == null) {
fetchValues();
try {
Key key = new sun.security.provider.DSAPrivateKey
(x, params.getP(), params.getQ(), params.getG());
encoded = key.getEncoded();
} catch (InvalidKeyException e) {
throw new ProviderException(e);
}
}
return encoded;
}
public BigInteger getX() {
fetchValues();
return x;
}
public DSAParams getParams() {
fetchValues();
return params;
}
}
private static final class P11DHPrivateKey extends P11Key
implements DHPrivateKey {
private static final long serialVersionUID = -1698576167364928838L;
private BigInteger x;
private DHParameterSpec params;
private byte[] encoded;
P11DHPrivateKey(Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes) {
super(PRIVATE, session, keyID, algorithm, keyLength, attributes);
}
private synchronized void fetchValues() {
token.ensureValid();
if (x != null) {
return;
}
CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
new CK_ATTRIBUTE(CKA_VALUE),
new CK_ATTRIBUTE(CKA_PRIME),
new CK_ATTRIBUTE(CKA_BASE),
};
fetchAttributes(attributes);
x = attributes[0].getBigInteger();
params = new DHParameterSpec(
attributes[1].getBigInteger(),
attributes[2].getBigInteger()
);
}
public String getFormat() {
token.ensureValid();
return "PKCS#8";
}
synchronized byte[] getEncodedInternal() {
token.ensureValid();
if (encoded == null) {
fetchValues();
try {
DHPrivateKeySpec spec = new DHPrivateKeySpec
(x, params.getP(), params.getG());
KeyFactory kf = KeyFactory.getInstance
("DH", P11Util.getSunJceProvider());
Key key = kf.generatePrivate(spec);
encoded = key.getEncoded();
} catch (GeneralSecurityException e) {
throw new ProviderException(e);
}
}
return encoded;
}
public BigInteger getX() {
fetchValues();
return x;
}
public DHParameterSpec getParams() {
fetchValues();
return params;
}
public int hashCode() {
if (token.isValid() == false) {
return 0;
}
fetchValues();
return Objects.hash(x, params.getP(), params.getG());
}
public boolean equals(Object obj) {
if (this == obj) return true;
// equals() should never throw exceptions
if (token.isValid() == false) {
return false;
}
if (!(obj instanceof DHPrivateKey)) {
return false;
}
fetchValues();
DHPrivateKey other = (DHPrivateKey) obj;
DHParameterSpec otherParams = other.getParams();
return ((this.x.compareTo(other.getX()) == 0) &&
(this.params.getP().compareTo(otherParams.getP()) == 0) &&
(this.params.getG().compareTo(otherParams.getG()) == 0));
}
}
private static final class P11DHPublicKey extends P11Key
implements DHPublicKey {
static final long serialVersionUID = -598383872153843657L;
private BigInteger y;
private DHParameterSpec params;
private byte[] encoded;
P11DHPublicKey(Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes) {
super(PUBLIC, session, keyID, algorithm, keyLength, attributes);
}
private synchronized void fetchValues() {
token.ensureValid();
if (y != null) {
return;
}
CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
new CK_ATTRIBUTE(CKA_VALUE),
new CK_ATTRIBUTE(CKA_PRIME),
new CK_ATTRIBUTE(CKA_BASE),
};
fetchAttributes(attributes);
y = attributes[0].getBigInteger();
params = new DHParameterSpec(
attributes[1].getBigInteger(),
attributes[2].getBigInteger()
);
}
public String getFormat() {
token.ensureValid();
return "X.509";
}
synchronized byte[] getEncodedInternal() {
token.ensureValid();
if (encoded == null) {
fetchValues();
try {
DHPublicKeySpec spec = new DHPublicKeySpec
(y, params.getP(), params.getG());
KeyFactory kf = KeyFactory.getInstance
("DH", P11Util.getSunJceProvider());
Key key = kf.generatePublic(spec);
encoded = key.getEncoded();
} catch (GeneralSecurityException e) {
throw new ProviderException(e);
}
}
return encoded;
}
public BigInteger getY() {
fetchValues();
return y;
}
public DHParameterSpec getParams() {
fetchValues();
return params;
}
public String toString() {
fetchValues();
return super.toString() + "\n y: " + y + "\n p: " + params.getP()
+ "\n g: " + params.getG();
}
public int hashCode() {
if (token.isValid() == false) {
return 0;
}
fetchValues();
return Objects.hash(y, params.getP(), params.getG());
}
public boolean equals(Object obj) {
if (this == obj) return true;
// equals() should never throw exceptions
if (token.isValid() == false) {
return false;
}
if (!(obj instanceof DHPublicKey)) {
return false;
}
fetchValues();
DHPublicKey other = (DHPublicKey) obj;
DHParameterSpec otherParams = other.getParams();
return ((this.y.compareTo(other.getY()) == 0) &&
(this.params.getP().compareTo(otherParams.getP()) == 0) &&
(this.params.getG().compareTo(otherParams.getG()) == 0));
}
}
private static final class P11ECPrivateKey extends P11Key
implements ECPrivateKey {
private static final long serialVersionUID = -7786054399510515515L;
private BigInteger s;
private ECParameterSpec params;
private byte[] encoded;
P11ECPrivateKey(Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes) {
super(PRIVATE, session, keyID, algorithm, keyLength, attributes);
}
private synchronized void fetchValues() {
token.ensureValid();
if (s != null) {
return;
}
CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
new CK_ATTRIBUTE(CKA_VALUE),
new CK_ATTRIBUTE(CKA_EC_PARAMS, params),
};
fetchAttributes(attributes);
s = attributes[0].getBigInteger();
try {
params = P11ECKeyFactory.decodeParameters
(attributes[1].getByteArray());
} catch (Exception e) {
throw new RuntimeException("Could not parse key values", e);
}
}
public String getFormat() {
token.ensureValid();
return "PKCS#8";
}
synchronized byte[] getEncodedInternal() {
token.ensureValid();
if (encoded == null) {
fetchValues();
try {
Key key = ECUtil.generateECPrivateKey(s, params);
encoded = key.getEncoded();
} catch (InvalidKeySpecException e) {
throw new ProviderException(e);
}
}
return encoded;
}
public BigInteger getS() {
fetchValues();
return s;
}
public ECParameterSpec getParams() {
fetchValues();
return params;
}
}
private static final class P11ECPublicKey extends P11Key
implements ECPublicKey {
private static final long serialVersionUID = -6371481375154806089L;
private ECPoint w;
private ECParameterSpec params;
private byte[] encoded;
P11ECPublicKey(Session session, long keyID, String algorithm,
int keyLength, CK_ATTRIBUTE[] attributes) {
super(PUBLIC, session, keyID, algorithm, keyLength, attributes);
}
private synchronized void fetchValues() {
token.ensureValid();
if (w != null) {
return;
}
CK_ATTRIBUTE[] attributes = new CK_ATTRIBUTE[] {
new CK_ATTRIBUTE(CKA_EC_POINT),
new CK_ATTRIBUTE(CKA_EC_PARAMS),
};
fetchAttributes(attributes);
try {
params = P11ECKeyFactory.decodeParameters
(attributes[1].getByteArray());
byte[] ecKey = attributes[0].getByteArray();
// Check whether the X9.63 encoding of an EC point is wrapped
// in an ASN.1 OCTET STRING
if (!token.config.getUseEcX963Encoding()) {
DerValue wECPoint = new DerValue(ecKey);
if (wECPoint.getTag() != DerValue.tag_OctetString) {
throw new IOException("Could not DER decode EC point." +
" Unexpected tag: " + wECPoint.getTag());
}
w = P11ECKeyFactory.decodePoint
(wECPoint.getDataBytes(), params.getCurve());
} else {
w = P11ECKeyFactory.decodePoint(ecKey, params.getCurve());
}
} catch (Exception e) {
throw new RuntimeException("Could not parse key values", e);
}
}
public String getFormat() {
token.ensureValid();
return "X.509";
}
synchronized byte[] getEncodedInternal() {
token.ensureValid();
if (encoded == null) {
fetchValues();
try {
return ECUtil.x509EncodeECPublicKey(w, params);
} catch (InvalidKeySpecException e) {
throw new ProviderException(e);
}
}
return encoded;
}
public ECPoint getW() {
fetchValues();
return w;
}
public ECParameterSpec getParams() {
fetchValues();
return params;
}
public String toString() {
fetchValues();
return super.toString()
+ "\n public x coord: " + w.getAffineX()
+ "\n public y coord: " + w.getAffineY()
+ "\n parameters: " + params;
}
}
}
/*
* NOTE: Must use PhantomReference here and not WeakReference
* otherwise the key maybe cleared before other objects which
* still use these keys during finalization such as SSLSocket.
*/
final class SessionKeyRef extends PhantomReference<P11Key>
implements Comparable<SessionKeyRef> {
private static ReferenceQueue<P11Key> refQueue =
new ReferenceQueue<P11Key>();
private static Set<SessionKeyRef> refList =
Collections.synchronizedSortedSet(new TreeSet<SessionKeyRef>());
static ReferenceQueue<P11Key> referenceQueue() {
return refQueue;
}
private static void drainRefQueueBounded() {
while (true) {
SessionKeyRef next = (SessionKeyRef) refQueue.poll();
if (next == null) break;
next.dispose();
}
}
// handle to the native key
private long keyID;
private Session session;
SessionKeyRef(P11Key key , long keyID, Session session) {
super(key, refQueue);
this.keyID = keyID;
this.session = session;
this.session.addObject();
refList.add(this);
// TBD: run at some interval and not every time?
drainRefQueueBounded();
}
private void dispose() {
refList.remove(this);
if (session.token.isValid()) {
Session newSession = null;
try {
newSession = session.token.getOpSession();
session.token.p11.C_DestroyObject(newSession.id(), keyID);
} catch (PKCS11Exception e) {
// ignore
} finally {
this.clear();
session.token.releaseSession(newSession);
session.removeObject();
}
}
}
public int compareTo(SessionKeyRef other) {
if (this.keyID == other.keyID) {
return 0;
} else {
return (this.keyID < other.keyID) ? -1 : 1;
}
}
}
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