JDK Tutorials - Herong's Tutorial Examples - v6.32, by Herong Yang
Reading DSA Private and Public Key Files
This section provides a tutorial example on running the test program JcaKeyFactoryTest.java to generate, write, read and convert DSA private and public keys.
Here is the result of my first test on JcaKeyFactoryTest.java for DSA private and public keys.
herong> javac JcaKeyFactoryTest.java herong> java JcaKeyFactoryTest 512 dsa DSA KeyPairGenerator Object Info: Algorithm = DSA Provider = SUN version 10 Key Size = 512 toString = sun.security.provider.DSAKeyPairGenerator@a987ac Private Key Info: Algorithm = DSA Saved File = dsa.pri Length = 201 Format = PKCS#8 toString = sun.security.provider.DSAPrivateKey@2eea8 Public Key Info: Algorithm = DSA Saved File = dsa.pub Length = 244 Format = X.509 toString = Sun DSA Public Key Parameters: p: fca682ce 8e12caba 26efccf7 110e526d b078b05e decbcd1e b4a208f3 ae1617ae 01f35b91 a47e6df6 3413c5e1 2ed0899b cd132acd 50d99151 bdc43ee7 37592e17 q: 962eddcc 369cba8e bb260ee6 b6a126d9 346e38c5 g: 678471b2 7a9cf44e e91a49c5 147db1a9 aaf244f0 5a434d64 86931d2d 14271b9e 35030b71 fd73da17 9069b32e 2935630e 1c206235 4d0da20a 6c416e50 be794ca4 y: a6813c1b 1ba23d1a 5c24d6f9 8b97f8be 58ee238b 012bcdbb 052503c1 a2b6d8d8 d23cda28 d426aafe dd8a0860 2a90c2d0 7902741b 3c4cc630 d105305f 4a339ae5 KeyFactory Object Info: Algorithm = DSA Provider = SUN version 10 toString = java.security.KeyFactory@ad8086 Private Key Info: Algorithm = DSA Saved File = dsa.pri Length = 201 toString = sun.security.provider.DSAPrivateKey@2eea8 Public Key Info: Algorithm = DSA Saved File = dsa.pub Length = 244 toString = Sun DSA Public Key Parameters:DSA p: fca682ce 8e12caba 26efccf7 110e526d b078b05e decbcd1e b4a208f3 ae1617ae 01f35b91 a47e6df6 3413c5e1 2ed0899b cd132acd 50d99151 bdc43ee7 37592e17 q: 962eddcc 369cba8e bb260ee6 b6a126d9 346e38c5 g: 678471b2 7a9cf44e e91a49c5 147db1a9 aaf244f0 5a434d64 86931d2d 14271b9e 35030b71 fd73da17 9069b32e 2935630e 1c206235 4d0da20a 6c416e50 be794ca4 y: a6813c1b 1ba23d1a 5c24d6f9 8b97f8be 58ee238b 012bcdbb 052503c1 a2b6d8d8 d23cda28 d426aafe dd8a0860 2a90c2d0 7902741b 3c4cc630 d105305f 4a339ae5
The program seems to be working:
Table of Contents
Date, Time and Calendar Classes
Date and Time Object and String Conversion
Number Object and Numeric String Conversion
Locales, Localization Methods and Resource Bundles
Calling and Importing Classes Defined in Unnamed Packages
HashSet, Vector, HashMap and Collection Classes
Character Set Encoding Classes and Methods
Encoding Conversion Programs for Encoded Text Files
Datagram Network Communication
DOM (Document Object Model) - API for XML Files
DTD (Document Type Definition) - XML Validation
XSD (XML Schema Definition) - XML Validation
XSL (Extensible Stylesheet Language)
Message Digest Algorithm Implementations in JDK
Private key and Public Key Pair Generation
►PKCS#8/X.509 Private/Public Encoding Standards
PKCS#8 and X.509 Key Encoding Classes
java.security.KeyFactory - Reading Encoded Keys
JcaKeyFactoryTest.java - Key Factory Test Program
►Reading DSA Private and Public Key Files
Reading RSA Private and Public Key Files
Digital Signature Algorithm and Sample Program
"keytool" Commands and "keystore" Files
KeyStore and Certificate Classes
Secret Key Generation and Management
Cipher - Encryption and Decryption
The SSL (Secure Socket Layer) Protocol
SSL Socket Communication Testing Programs