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修正TLCPClient.java，增加证书验证 #47

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修正TLCPClient.java，增加证书验证
zhsnew Jul 2, 2025
ffba479
修正通配符名称校验
zhsnew Jul 2, 2025
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134 changes: 119 additions & 15 deletions examples/jce/TLCPClient.java
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Original file line number Diff line number Diff line change
Expand Up @@ -20,34 +20,138 @@
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import java.security.KeyStore;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import net.tongsuo.TongsuoProvider;
import net.tongsuo.TongsuoX509Certificate;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import javax.net.ssl.TrustManagerFactory;
import java.util.Collection;
import java.util.List;
import java.util.ArrayList;
import javax.naming.ldap.LdapName;
import javax.naming.ldap.Rdn;
import javax.security.auth.x500.X500Principal;
import java.security.cert.CertificateParsingException;

public class TLCPClient {
public static void main(String[] args) throws Exception {
String[] ciphers = {"ECC-SM2-SM4-GCM-SM3"};
String[] ciphers = { "ECC-SM2-SM4-GCM-SM3" };
int port = 4433;
String caCertFile = "ca.crt";
String subCaCertFile = "subca.crt";
X509Certificate caCert = TongsuoX509Certificate.fromX509PemInputStream(new FileInputStream(new File(caCertFile)));
X509Certificate subCaCert = TongsuoX509Certificate.fromX509PemInputStream(new FileInputStream(new File(subCaCertFile)));
X509Certificate caCert = TongsuoX509Certificate
.fromX509PemInputStream(new FileInputStream(new File(caCertFile)));
X509Certificate subCaCert = TongsuoX509Certificate
.fromX509PemInputStream(new FileInputStream(new File(subCaCertFile)));

KeyStore ks = KeyStore.getInstance("PKCS12", new BouncyCastleProvider());
ks.load(null);
ks.setCertificateEntry("CA", caCert);
ks.setCertificateEntry("SUB_CA", subCaCert);
TrustManager[] tms = new TrustManager[] {
new X509TrustManager() {
public void checkClientTrusted(X509Certificate[] certs, String authType)
throws CertificateException {
}

TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
tmf.init(ks);
TrustManager[] clientTrustManager = tmf.getTrustManagers();
public void checkServerTrusted(X509Certificate[] certs, String authType)
throws CertificateException {
if (subCaCert != null) {
for (X509Certificate cert : certs) {
try {
cert.checkValidity();
if (cert.getIssuerX500Principal().equals(subCaCert.getSubjectX500Principal())) {
// verifyHostname(cert, "localhost");
cert.verify(subCaCert.getPublicKey());
} else if (cert.getIssuerX500Principal().equals(caCert.getSubjectX500Principal())) {
cert.verify(caCert.getPublicKey());
} else {
throw new CertificateException("Certificate issuer does not match CA or SubCA");
}
} catch (Exception e) {
e.printStackTrace();
throw new CertificateException(e);
}
}
}
}

public X509Certificate[] getAcceptedIssuers() {
return new X509Certificate[0];
}

void verifyHostname(X509Certificate cert, String hostname) throws CertificateException {
if (hostname == null || hostname.isEmpty()) {
throw new CertificateException("Hostname is empty");
}

List<String> possibleNames = getAllPossibleHostnames(cert);

for (String name : possibleNames) {
if (matchHostname(name, hostname)) {
return;
}
}

throw new CertificateException(
"No matching hostname found in certificate. Expected: " + hostname);
}

List<String> getAllPossibleHostnames(X509Certificate cert) throws CertificateException {
List<String> result = new ArrayList<>();

try {
X500Principal principal = cert.getSubjectX500Principal();
LdapName ldapName = new LdapName(principal.getName());

for (Rdn rdn : ldapName.getRdns()) {
if ("CN".equalsIgnoreCase(rdn.getType())) {
result.add(rdn.getValue().toString());
}
}
} catch (Exception e) {
throw new CertificateException("Error extracting CN: " + e.getMessage());
}

try {
Collection<List<?>> subjectAltNames = cert.getSubjectAlternativeNames();
if (subjectAltNames != null) {
for (List<?> san : subjectAltNames) {
if (san.size() >= 2) {
Integer type = (Integer) san.get(0);
if (type == 2) {
String name = (String) san.get(1);
result.add(name);
}
}
}
}
} catch (CertificateParsingException e) {
throw new CertificateException("Error extracting SAN: " + e.getMessage());
}

return result;
}

boolean matchHostname(String pattern, String hostname) {
if (pattern.equals(hostname)) {
return true;
}

if (pattern.startsWith("*.")) {
String suffix = pattern.substring(1);

if (hostname.length() > suffix.length()) {
if (hostname.endsWith(suffix)) {
String prefix = hostname.substring(0, hostname.length() - suffix.length());
return !prefix.contains(".");
}
}
}

return false;
}

}
};

SSLContext sslContext = SSLContext.getInstance("TLCP", new TongsuoProvider());
sslContext.init(null, clientTrustManager, new SecureRandom());
sslContext.init(null, tms, new SecureRandom());
SSLSocketFactory sslCntFactory = sslContext.getSocketFactory();
SSLSocket sslSocket = (SSLSocket) sslCntFactory.createSocket("localhost", port);
if (ciphers != null) {
Expand All @@ -63,7 +167,7 @@ public static void main(String[] args) throws Exception {
BufferedInputStream streamReader = new BufferedInputStream(sslSocket.getInputStream());
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(streamReader, "utf-8"));
String line = null;
while((line = bufferedReader.readLine())!= null){
while ((line = bufferedReader.readLine()) != null) {
System.out.println("client receive server data:" + line);
}

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