Fundamentals of Cryptography
Scott R. Ellis, EnCE, RCA, RCIA, kCura Corporation
1 Assuring Privacy with Encryption
Encryption provides a secure layer, at the storage byte level, under which information can be secured from prying eyes (see checklist: An Agenda for Action for Implementing Encryption and Other Information Security Functions). Data, or “plaintext” as it is called in cryptography, is rendered into cipher text through a ciphering process. Most importantly, encryption protects stored data. Files such as database data files, spreadsheets, documents, and reports can contain critical information—information which, if lost, could cause damage to:
• Sales generation
• Operations
• Reputation
• Competitive advantage
• Individuals
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