Sample code for JSSE / JSA jvm/jre/jdk info re SSLv3 and TLS support

Author: Craig Ringer

java/jsse_sslcontext_TLS_SSLv3_java5/JSSInfo.class

@@ -0,0 +1,20 @@
+import java.security.Security;
+import java.security.Provider;
+
+public class JSSInfo {
+
+    public static void main(String[] args)
+    {
+        /* JSA providers */
+        Provider[] providers = Security.getProviders();
+        System.out.println("JSA providers:");
+        int i;
+        for (i = 0; i < providers.length; i++)
+        {
+            System.out.println("  " + i + " " + providers[i].toString());
+        }
+        System.out.println("\n");
+    }
+}
+
+// vim: ts=4 sw=4 et ai

java/jsse_sslcontext_TLS_SSLv3_java5/JSSInfo.java

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+all: SSLContextInfo JSSInfo
+
+%Info: %Info.class
+	@echo
+	java $(basename $< .class)
+
+%.class: %.java
+	javac $<

java/jsse_sslcontext_TLS_SSLv3_java5/Makefile

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+import javax.net.ssl.SSLContext;
+import java.security.NoSuchAlgorithmException;
+import javax.net.ssl.SSLSocketFactory;
+import java.security.KeyManagementException;
+
+public class SSLContextInfo {
+
+    public static void main(String[] args)
+    {
+        int i, c;
+        /* Try to establish a TLSv1 SSLContext */
+        String[] protos = {"TLS", "TLSv1", "TLSv1.1", "SSLv3"};
+        System.out.println("SSLContext creation attempts:");
+        for (i = 0; i < protos.length; i++) {
+            try {
+                SSLContext ctx = SSLContext.getInstance(protos[i]);
+                System.out.println("  " + protos[i] + " created: " + ctx.toString());
+                System.out.println("    Provider: " + ctx.getProvider().toString());
+                System.out.println("    Protocol: " + ctx.getProvider());
+                try {
+                    ctx.init(null, null, null);
+                    System.out.println("    SSLContext.init(): ok");
+                    SSLSocketFactory sf = ctx.getSocketFactory();
+                    System.out.println("    SocketFactory: created: " + sf.toString());
+                    String[] default_ciphers = sf.getDefaultCipherSuites();
+                    System.out.println("    Default ciphers:");
+                    for (c = 0; c < default_ciphers.length; c++) {
+                        System.out.println("      " + default_ciphers[c]);
+                    }
+                    String[] supported_ciphers = sf.getSupportedCipherSuites();
+                    System.out.println("    Supported ciphers:");
+                    for (c = 0; c < supported_ciphers.length; c++) {
+                        System.out.println("      " + supported_ciphers[c]);
+                    }
+                } catch (KeyManagementException kmx) {
+                    System.out.println("    SSLContext.init(): failed: " + kmx.toString());
+                }
+            } catch (NoSuchAlgorithmException ex) {
+                System.out.println("  " + protos[i] + " failed: " + ex.toString());
+            }
+        }
+    }
+}
+
+// vim: ts=4 sw=4 et ai