Security concepts

Basic concepts of Security in IT industry.

• Plain text (No security)
• CIPHER Text
• Encryption (Implies Plain text to Cipher text) Usually from sender side
• Decryption (Implies Cipher text to Plain text) Usually at receiver end
• Cryptograph is the study of Encryption
• Cryptanalysis is the study of Decryption
• Cryptology is study of Encryption and Decryption
• Keys

Stream Cipher implies Bit by Bit

Block Cipher implies Block by Block and size depends on algorithm

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