A Summary of Encryption

NAME: OGADAH OKECHUKWU EMMANUEL
MATRIC NO: DI/
COURSE TITLE/ encrypt: INTRODUCTION TO COMPUTER SCIENCE/ GES 103
LECTURER: MR. MATTHEW ADEGBOLA.
DATE: nineteenth MARCH, 2012.

A PAGE SUMMARY ON:ENCRYPTION,DECRPTION, COMPRESSION, DECOMPRESSION AND THEIR diverse TOOLS
During the first two years of World War I, command systems were employ for high-command and diplomatic communications, just as they had been for centuries, and cipher systems were used almost exclusively for tactical communications. encoding, also called Data Encryption, or Encipherment is the bring of disguising information as cipher text, or qualification data unintelligible to an unauthorized person. In contrast, decryption, or decipherment, is the process of converting cipher text back into its original format, which can be understood by anybody. Manual encryption has been used since popish times, but the term has become associated with the disguising of information via electronic computers. Encryption is a process basic to cryptology which is the science interested with data communication and storage in secure and unremarkably secret form. It encompasses both cryptography and cryptanalysis.
The term cryptology is derived from the Grecian kryptos ( apart(p)) and logos (word).



Security obtains from legitimate users be able to transform information by virtue of a secret key or keysâ€"i.e., information known merely to them. The resulting cipher, although generally inscrutable and not forgeable without the secret key, can be decrypted by anyone knowing the key either to recover the hidden information or to authenticate the source. Secrecy, though still an all important(p) function in cryptology, is often no longer the chief(prenominal) purpose of using a transformation, and the resulting transformation may be only loosely considered a cipher. Cryptography (from the Greek kryptos and graphein, to bring through) was originally the study of the principles and techniques by which information could be concealed in ciphers and later revealed by...If you want to get a total essay, order it on our website: Orderessay



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