RSA : Java Glossary


RSA (Rivest, Shamir and Adelman) A pioneering company in digital signatures. The RSA algorithm is based on the fact that there is no efficient way to factor very large numbers. Their basic digital signing and encryption patent has expired. I was thus able to use the RSA encryption technique in custom software I write that sends credit card information over the Internet and email. RSA is mainly known for SMIME email encryption software. They no longer issue digital certificates. RSA-signed Applets often refer to the old proprietary Netscape jar-signing scheme. It has been replaced by the Sun-style DSA (Digital Signature Algorithm) -signed Applets in Java 1.2. Sun-style RSA-signed Applets were introduced in Java version 1.3 and have now largely replaced the DSA scheme.

Public/private keys have many applications including:

RSA Encryption with JCE (Java Cryptography Extension) Cipher

Requires sender to know public key of receiver and receiver requires the corresponding private key.

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