Cipher - Encryption and Decryption

JDK Tutorials - Herong's Tutorial Examples

∟Cipher - Encryption and Decryption

This chapter provides tutorial notes and example codes on the cipher process. Topics include the cipher process - data encryption and decryption; the cipher class, javax.crypto.Cipher; the cipher sample program and test results with Blowfish and DES encryption algorithms.

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javax.crypto.Cipher - The Secret Key Encryption Class

JceSecretCipher.java - Secret Key Encryption Sample Program

Blowfish and DES Secret Key Encryption Tests

JcePublicCipher.java - Private and Public Key Encryption

DSA Public Key Encryption Tests

RSA Public Key Encryption Tests

Conclusions:

Secret keys are used for symmetric encryption algorithms like Blowfish, DES, or HmacMD5.
Public key and private key pairs are used for asymmetric encryption algorithms like RSA or DSA.
The javax.crypto.Cipher class can be used to perform encryption or decryption on input data.

Read my other book "Cryptography Tutorials - Herong's Tutorial Examples" for more cryptography tutorials at herongyang.com/Cryptography.

Table of Contents

About This JDK Tutorial Book

JDK (Java Development Kit)

Java Date-Time API

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

Character Set Encoding Maps

Encoding Conversion Programs for Encoded Text Files

Socket Network Communication

Datagram Network Communication

DOM (Document Object Model) - API for XML Files

SAX (Simple API for XML)

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

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

SSL Client Authentication

HTTPS (Hypertext Transfer Protocol Secure)

Outdated Tutorials

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