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When Cipher Is Used?

James H. Sterling • • 6 min read
When Cipher Is Used?

A cipher transforms data by processing the original, plaintext characters or other data into ciphertext

ciphertext
Ciphertext is also known as encrypted or encoded information because it contains a form of the original plaintext that is unreadable by a human or computer without the proper cipher to decrypt it. ... Decryption, the inverse of encryption, is the process of turning ciphertext into readable plaintext.
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. The ciphertext should appear as random data. Traditionally, ciphers used these two main types of transformation: Transposition ciphers keep all the original bits of data in a byte but mix their order.

What are cipher used for?

Ciphers, also called encryption algorithms, are systems for encrypting and decrypting data. A cipher converts the original message, called plaintext, into ciphertext using a key to determine how it is done.

How are ciphers used in everyday life?

'Cryptography in everyday life' contains a range of situations where the use of cryptography facilitates the provision of a secure service: cash withdrawal from an ATM, Pay TV, email and file storage using Pretty Good Privacy (PGP) freeware, secure web browsing, and use of a GSM mobile phone.

James H. Sterling
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James H. Sterling

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.