Crypto Tutorial (shrt) 6-16-99

Crypto Concepts CrypTEC SystemsField-Maintainable Secure Operating SystemsCertificate VersionCryptographic Serial NumberSignature AlgorithmIssuer (authority)Concepts Validity DatesSubject (owner)Public Key InformationCertificate CAA Tutorial For BusyAuthoritySSignatureCA CABusiness Executives. Cert.Hash DigestSFundamental security objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Privacy with secret-key and public key encryption . . . . . . . . . . . . . . . . . .6Integrity and non-repudiation with digital signatures . . . . . . . . . . . . . . . .8Authentication with digital certificates . . . . . . . . . . . . . . . . . . . . . . . . . .10An example of a hybrid crypto system — privacy-enhanced mail . . . . . .12Dual key sets for messaging and signing . . . . . . . . . . . . . . . . . . . . . . . . .13Cryptography summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14Simple examples of public key mathematics . . . . . . . . . . . . . . . . . . . . . .15Cryptographic Legend Please take a minute Hashing operation, resulting in a Digital certificate, signed by a CertificateHash P to learn these symbols. message digest Authority (CA)CAC.T.Message digestDigest Understanding them Symmetric key encrypting operation: lockingPublic key encrypting operation: creating ana secret message is essential to under-M electronic envelope or verifying a signatureM Private key decrypting operation: opening an ...