Cloning Certificates with New Identities

This section provides a tutorial example on how to clone a certificates stored in a 'keystore' file using 'keytool'.

In the third example, I want to create a new key entry with the same key pair of an existing key entry, but change the identity information:

C:\herong>keytool -keyclone -alias my_home -dest my_copy -keypass My1stKey 
   -new My2ndKey -keystore herong.jks -storepass HerongJKS

C:\herong>keytool -selfcert -alias my_copy -keypass My2ndKey 
   -dname "cn=Herong Yang, ou=My Unit 2, o=My Organization 2, c=US" 
   -keystore herong.jks -storepass HerongJKS

C:\herong>keytool -export -alias my_copy -file my_copy.crt 
   -keystore herong.jks -storepass HerongJKS
Certificate stored in file <my_copy.crt>

C:\herong>keytool -printcert -file my_copy.crt

Owner: CN=Herong Yang, OU=My Unit 2, O=My Organization 2, C=US
Issuer: CN=Herong Yang, OU=My Unit 2, O=My Organization 2, C=US
Serial number: 40798b4f
Valid from: Sat Jun 1 14:15:43 EDT 2012 until: Sat Aug 31 14:15:43...
Certificate fingerprints:
         MD5:  4A:E4:D9:BC:E9:8C:50:27:6C:00:59:76:D1:14:05:79
         SHA1: FA:F5:30:78:22:3B:52:28:0D:41:24:0B:CA:CC:6F:D4:0E:...

Last update: 2015.

Table of Contents

 About This Book

 Java Tools Terminology

 Installing Java 8 on Windows

 'javac' - The Java Program Compiler

 'java' - The Java Program Launcher

 'jdb' - The Java Debugger

 'jconsole' - Java Monitoring and Management Console

 'jstat' - JVM Statistics Monitoring Tool

 JVM Troubleshooting Tools

 jvisualvm (Java VisualVM) - JVM Visual Tool

 'jar' - The JAR File Tool

 'javap' - The Java Class File Disassembler

'keytool' - Public Key Certificate Tool

 Certificates and Certificate Chains

 'keystore' - Public Key Certificate Storage File

 JDK 1.5 'keytool' - keystore File Management Commands

 JDK 1.6 'keytool' - keystore File Management Commands

 Generating Key Pairs and Self-Signed Certificates

 Exporting and Import Certificates

Cloning Certificates with New Identities

 'native2ascii' - Native-to-ASCII Encoding Converter

 Outdated Tutorials


 PDF Printing Version