International Data Encryption AlgorithmRivest, Shamir, and Adleman AlgorithmMessage Digest Algorithm 5Secure Hash AlgorithmCyclic Redundancy CheckSecure Electronic TransactionSOCKSPublicKey InfrastructurePretty Good PrivacyRainbow SeriesTrusted Computer System Evaluation Criteria/Orange BookThe Orange BookTrusted Network Interpretation/Red BookITU StandardsPhysical Interface Standards