org.openeuler.sun.security.ssl.SM2ServerKeyExchange Maven / Gradle / Ivy
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* particular file as subject to the "Classpath" exception as provided
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* version 2 for more details (a copy is included in the LICENSE file that
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package org.openeuler.sun.security.ssl;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.security.InvalidKeyException;
import java.security.Key;
import java.security.KeyFactory;
import java.security.NoSuchAlgorithmException;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.Signature;
import java.security.SignatureException;
import java.security.interfaces.ECPublicKey;
import java.security.spec.ECParameterSpec;
import java.security.spec.ECPoint;
import java.security.spec.ECPublicKeySpec;
import java.security.spec.InvalidKeySpecException;
import java.text.MessageFormat;
import java.util.Locale;
import org.openeuler.sun.security.ssl.SM2KeyExchange.SM2Credentials;
import org.openeuler.sun.security.ssl.SM2KeyExchange.SM2Possession;
import org.openeuler.sun.security.ssl.SSLHandshake.HandshakeMessage;
import org.openeuler.sun.security.ssl.SupportedGroupsExtension.NamedGroup;
import org.openeuler.sun.security.ssl.GMX509Authentication.GMX509Credentials;
import org.openeuler.sun.security.ssl.GMX509Authentication.GMX509Possession;
import org.openeuler.sun.misc.HexDumpEncoder;
/**
* Pack of the ServerKeyExchange handshake message.
*/
final class SM2ServerKeyExchange {
static final SSLConsumer sm2HandshakeConsumer =
new SM2ServerKeyExchangeConsumer();
static final HandshakeProducer sm2HandshakeProducer =
new SM2ServerKeyExchangeProducer();
/**
* The SM2 ServerKeyExchange handshake message.
*/
private static final
class SM2ServerKeyExchangeMessage extends HandshakeMessage {
private static final byte CURVE_NAMED_CURVE = (byte)0x03;
// id of the named curve
private final NamedGroup namedGroup;
// encoded public point
private final byte[] publicPoint;
// signature bytes, or null if anonymous
private final byte[] paramsSignature;
// public key object encapsulated in this message
private final ECPublicKey publicKey;
private final boolean useExplicitSigAlgorithm;
// the signature algorithm used by this ServerKeyExchange message
private final SignatureScheme signatureScheme;
SM2ServerKeyExchangeMessage(
HandshakeContext handshakeContext) throws IOException {
super(handshakeContext);
// This happens in server side only.
ServerHandshakeContext shc =
(ServerHandshakeContext)handshakeContext;
SM2Possession sm2Possession = null;
GMX509Possession gmx509Possession = null;
for (SSLPossession possession : shc.handshakePossessions) {
if (possession instanceof SM2Possession) {
sm2Possession = (SM2Possession)possession;
if (gmx509Possession != null) {
break;
}
} else if (possession instanceof GMX509Possession) {
gmx509Possession = (GMX509Possession)possession;
if (sm2Possession != null) {
break;
}
}
}
if (sm2Possession == null) {
// unlikely
throw shc.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"No SM2 credentials negotiated for server key exchange");
}
publicKey = sm2Possession.publicKey;
ECParameterSpec params = publicKey.getParams();
ECPoint point = publicKey.getW();
publicPoint = JsseJce.encodePoint(point, params.getCurve());
this.namedGroup = NamedGroup.valueOf(params);
if ((namedGroup == null) || (namedGroup.oid == null) ) {
// unlikely
throw shc.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"Unnamed EC parameter spec: " + params);
}
if (gmx509Possession == null) {
// anonymous, no authentication, no signature
paramsSignature = null;
signatureScheme = null;
useExplicitSigAlgorithm = false;
} else {
useExplicitSigAlgorithm = shc.t12WithGMCipherSuite;
if (useExplicitSigAlgorithm) {
if (shc.peerRequestedSignatureSchemes == null ||
!shc.peerRequestedSignatureSchemes.contains(SignatureScheme.ECDSA_SM3)) {
throw shc.conContext.fatal(Alert.INTERNAL_ERROR,
"No supported signature algorithm for " +
gmx509Possession.popSignPrivateKey.getAlgorithm() +
" key");
}
signatureScheme = SignatureScheme.ECDSA_SM3;
} else {
signatureScheme = null;
}
Signature signer;
try {
signer = getSignature(
gmx509Possession.popSignPrivateKey.getAlgorithm(),
gmx509Possession.popSignPrivateKey);
} catch (NoSuchAlgorithmException | InvalidKeyException e) {
throw shc.conContext.fatal(Alert.INTERNAL_ERROR,
"Unsupported signature algorithm: " +
gmx509Possession.popSignPrivateKey.getAlgorithm(), e);
}
byte[] signature;
try {
updateSignature(signer, shc.clientHelloRandom.randomBytes,
shc.serverHelloRandom.randomBytes,
namedGroup.id, publicPoint);
signature = signer.sign();
} catch (SignatureException ex) {
throw shc.conContext.fatal(Alert.INTERNAL_ERROR,
"Failed to sign sm2 parameters: " +
gmx509Possession.popSignPrivateKey.getAlgorithm(), ex);
}
paramsSignature = signature;
}
}
SM2ServerKeyExchangeMessage(HandshakeContext handshakeContext,
ByteBuffer m) throws IOException {
super(handshakeContext);
// This happens in client side only.
ClientHandshakeContext chc =
(ClientHandshakeContext)handshakeContext;
/*
* According to GB/T 38636-2020, ECParameter does not need to be checked when using SM2 algorithm.
* The curveType and namedGroup do not need to be checked.
*/
// curveType
Record.getInt8(m);
// namedGroup
int namedGroupId = Record.getInt16(m);
this.namedGroup = NamedGroup.SM2P256V1;
ECParameterSpec parameters =
JsseJce.getECParameterSpec(namedGroup.oid);
if (parameters == null) {
throw chc.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"No supported EC parameter: " + namedGroup);
}
publicPoint = Record.getBytes8(m);
if (publicPoint.length == 0) {
throw chc.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"Insufficient ECPoint data: " + namedGroup);
}
ECPublicKey ecPublicKey;
try {
ECPoint point =
JsseJce.decodePoint(publicPoint, parameters.getCurve());
KeyFactory factory = JsseJce.getKeyFactory("EC");
ecPublicKey = (ECPublicKey)factory.generatePublic(
new ECPublicKeySpec(point, parameters));
} catch (NoSuchAlgorithmException |
InvalidKeySpecException | IOException ex) {
throw chc.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"Invalid ECPoint: " + namedGroup, ex);
}
publicKey = ecPublicKey;
GMX509Credentials x509Credentials = null;
for (SSLCredentials cd : chc.handshakeCredentials) {
if (cd instanceof GMX509Credentials) {
x509Credentials = (GMX509Credentials)cd;
break;
}
}
if (x509Credentials == null) {
// anonymous, no authentication, no signature
if (m.hasRemaining()) {
throw chc.conContext.fatal(Alert.HANDSHAKE_FAILURE,
"Invalid DH ServerKeyExchange: unknown extra data");
}
this.signatureScheme = null;
this.paramsSignature = null;
this.useExplicitSigAlgorithm = false;
return;
}
this.useExplicitSigAlgorithm = chc.t12WithGMCipherSuite;
if (useExplicitSigAlgorithm) {
int ssid = Record.getInt16(m);
this.signatureScheme = SignatureScheme.valueOf(ssid);
if (this.signatureScheme != SignatureScheme.ECDSA_SM3) {
throw chc.conContext.fatal(Alert.HANDSHAKE_FAILURE,
"Invalid signature algorithm (" + ssid +
") used in SM2 ServerKeyExchange handshake message");
}
if (!chc.localSupportedSignAlgs.contains(signatureScheme)) {
throw chc.conContext.fatal(Alert.HANDSHAKE_FAILURE,
"Unsupported signature algorithm (" +
signatureScheme.name +
") used in SM2 ServerKeyExchange handshake message");
}
} else {
this.signatureScheme = null;
}
// read and verify the signature
paramsSignature = Record.getBytes16(m);
Signature signer;
try {
signer = getSignature(
x509Credentials.popSignPublicKey.getAlgorithm(),
x509Credentials.popSignPublicKey);
} catch (NoSuchAlgorithmException | InvalidKeyException e) {
throw chc.conContext.fatal(Alert.INTERNAL_ERROR,
"Unsupported signature algorithm: " +
x509Credentials.popSignPublicKey.getAlgorithm(), e);
}
try {
updateSignature(signer,
chc.clientHelloRandom.randomBytes,
chc.serverHelloRandom.randomBytes,
namedGroupId, publicPoint);
if (!signer.verify(paramsSignature)) {
throw chc.conContext.fatal(Alert.HANDSHAKE_FAILURE,
"Invalid SM2 ServerKeyExchange signature");
}
} catch (SignatureException ex) {
throw chc.conContext.fatal(Alert.HANDSHAKE_FAILURE,
"Cannot verify SM2 ServerKeyExchange signature", ex);
}
}
@Override
public SSLHandshake handshakeType() {
return SSLHandshake.SERVER_KEY_EXCHANGE;
}
@Override
public int messageLength() {
int sigLen = 0;
if (paramsSignature != null) {
sigLen = 2 + paramsSignature.length;
if (useExplicitSigAlgorithm) {
sigLen += SignatureScheme.sizeInRecord();
}
}
return 4 + publicPoint.length + sigLen;
}
@Override
public void send(HandshakeOutStream hos) throws IOException {
hos.putInt8(CURVE_NAMED_CURVE);
hos.putInt16(namedGroup.id);
hos.putBytes8(publicPoint);
if (paramsSignature != null) {
if (useExplicitSigAlgorithm) {
hos.putInt16(signatureScheme.id);
}
hos.putBytes16(paramsSignature);
}
}
@Override
public String toString() {
if (useExplicitSigAlgorithm) {
MessageFormat messageFormat = new MessageFormat(
"\"SM2 ServerKeyExchange\": '{'\n" +
" \"parameters\": '{'\n" +
" \"named group\": \"{0}\"\n" +
" \"sm2 public\": '{'\n" +
"{1}\n" +
" '}',\n" +
" '}',\n" +
" \"digital signature\": '{'\n" +
" \"signature algorithm\": \"{2}\"\n" +
" \"signature\": '{'\n" +
"{3}\n" +
" '}',\n" +
" '}'\n" +
"'}'",
Locale.ENGLISH);
HexDumpEncoder hexEncoder = new HexDumpEncoder();
Object[] messageFields = {
namedGroup.name,
Utilities.indent(
hexEncoder.encodeBuffer(publicPoint), " "),
signatureScheme.name,
Utilities.indent(
hexEncoder.encodeBuffer(paramsSignature), " ")
};
return messageFormat.format(messageFields);
} else if (paramsSignature != null) {
MessageFormat messageFormat = new MessageFormat(
"\"SM2 ServerKeyExchange\": '{'\n" +
" \"parameters\": '{'\n" +
" \"named group\": \"{0}\"\n" +
" \"sm2 public\": '{'\n" +
"{1}\n" +
" '}',\n" +
" '}',\n" +
" \"signature\": '{'\n" +
"{2}\n" +
" '}'\n" +
"'}'",
Locale.ENGLISH);
HexDumpEncoder hexEncoder = new HexDumpEncoder();
Object[] messageFields = {
namedGroup.name,
Utilities.indent(
hexEncoder.encodeBuffer(publicPoint), " "),
Utilities.indent(
hexEncoder.encodeBuffer(paramsSignature), " ")
};
return messageFormat.format(messageFields);
} else { // anonymous
MessageFormat messageFormat = new MessageFormat(
"\"SM2 ServerKeyExchange\": '{'\n" +
" \"parameters\": '{'\n" +
" \"named group\": \"{0}\"\n" +
" \"sm2 public\": '{'\n" +
"{1}\n" +
" '}',\n" +
" '}'\n" +
"'}'",
Locale.ENGLISH);
HexDumpEncoder hexEncoder = new HexDumpEncoder();
Object[] messageFields = {
namedGroup.name,
Utilities.indent(
hexEncoder.encodeBuffer(publicPoint), " "),
};
return messageFormat.format(messageFields);
}
}
private static Signature getSignature(String keyAlgorithm,
Key key) throws NoSuchAlgorithmException, InvalidKeyException {
Signature signer = null;
switch (keyAlgorithm) {
case "EC":
signer = JsseJce.getSignature(JsseJce.SIGNATURE_SM2);
break;
case "RSA":
signer = RSASignature.getInstance();
break;
default:
throw new NoSuchAlgorithmException(
"neither an RSA or a EC key : " + keyAlgorithm);
}
if (signer != null) {
if (key instanceof PublicKey) {
signer.initVerify((PublicKey)(key));
} else {
signer.initSign((PrivateKey)key);
}
}
return signer;
}
private static void updateSignature(Signature sig,
byte[] clntNonce, byte[] svrNonce, int namedGroupId,
byte[] publicPoint) throws SignatureException {
sig.update(clntNonce);
sig.update(svrNonce);
sig.update(CURVE_NAMED_CURVE);
sig.update((byte)((namedGroupId >> 8) & 0xFF));
sig.update((byte)(namedGroupId & 0xFF));
sig.update((byte)publicPoint.length);
sig.update(publicPoint);
}
}
/**
* The SM2 "ServerKeyExchange" handshake message producer.
*/
private static final
class SM2ServerKeyExchangeProducer implements HandshakeProducer {
// Prevent instantiation of this class.
private SM2ServerKeyExchangeProducer() {
// blank
}
@Override
public byte[] produce(ConnectionContext context,
HandshakeMessage message) throws IOException {
// The producing happens in server side only.
ServerHandshakeContext shc = (ServerHandshakeContext)context;
SM2ServerKeyExchangeMessage skem =
new SM2ServerKeyExchangeMessage(shc);
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.fine(
"Produced SM2 ServerKeyExchange handshake message", skem);
}
// Output the handshake message.
skem.write(shc.handshakeOutput);
shc.handshakeOutput.flush();
// The handshake message has been delivered.
return null;
}
}
/**
* The SM2 "ServerKeyExchange" handshake message consumer.
*/
private static final
class SM2ServerKeyExchangeConsumer implements SSLConsumer {
// Prevent instantiation of this class.
private SM2ServerKeyExchangeConsumer() {
// blank
}
@Override
public void consume(ConnectionContext context,
ByteBuffer message) throws IOException {
// The consuming happens in client side only.
ClientHandshakeContext chc = (ClientHandshakeContext)context;
SM2ServerKeyExchangeMessage skem =
new SM2ServerKeyExchangeMessage(chc, message);
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.fine(
"Consuming SM2 ServerKeyExchange handshake message", skem);
}
//
// update
//
chc.handshakeCredentials.add(
new SM2Credentials(skem.publicKey, skem.namedGroup));
//
// produce
//
// Need no new handshake message producers here.
}
}
}
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