proxies-閱讀頁
2025-05-27 18:08本頁面
【正文】 delegate and control responsibility ? Accountability who is responsible for tracking access to data ? Authorization who is responsible for who access data Integrity mechanisms ? Checksum, CRC protects integrity ? Message digest more robust integrity check Message digest ? The representation of text in the form of a single string of digits, created using a formula called a oneway hash function. ? Encrypting a message digest with a private key creates a digital signature, which is an electronic means of authentication. ? MD5 and Snefru are examples of public oneway hash functions. Encryption and privacy ? Encryption rewrite contents so that they cannot be read without key – Encrypting function produces encrypted message – Decrypting function extracts original message – Encryption key parameter that controls encryption/decrypt
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