Cryptography Tutorials - Herong's Tutorial Examples - v5.42, by Herong Yang
What Is Key Encoding?
This section describes private and public key encoding standards: PKCS#8 is used for encoding private keys and X.509 is used for encoding public keys.
What is Key Encoding? Key encoding is the process of converting encryption and decryption keys, or private and public keys, into a specific encoding format for storing them in files or transmitting them to remote systems.
As you can see from the previous chapter, JDK supports two commonly used key encoding standards:
To manage different key encoding standards, JDK offers a group of classes:
See next sections on how to use these key encoding classes.
Table of Contents
Introduction to AES (Advanced Encryption Standard)
DES Algorithm - Illustrated with Java Programs
DES Algorithm Java Implementation
DES Algorithm - Java Implementation in JDK JCE
DES Encryption Operation Modes
PHP Implementation of DES - mcrypt
Blowfish - 8-Byte Block Cipher
Secret Key Generation and Management
Cipher - Secret Key Encryption and Decryption
RSA Implementation using java.math.BigInteger Class
Introduction of DSA (Digital Signature Algorithm)
Java Default Implementation of DSA
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
Cipher - Public Key Encryption and Decryption
OpenSSL Introduction and Installation
OpenSSL Generating and Managing RSA Keys
OpenSSL Generating and Signing CSR
OpenSSL Validating Certificate Path
"keytool" and "keystore" from JDK
"OpenSSL" Signing CSR Generated by "keytool"
Migrating Keys from "keystore" to "OpenSSL" Key Files
Certificate X.509 Standard and DER/PEM Formats
Migrating Keys from "OpenSSL" Key Files to "keystore"