In cryptography, SEAL (Software-Optimized Encryption Algorithm) is a very fast stream cipher optimised for machines with a 32-bit word size and plenty of RAM. Cryptography (or cryptology; from Greek grc κρυπτός kryptos, "hidden secret" and grc γράφω gráphō, "I write" In Cryptography, a stream cipher is a symmetric key Cipher where plaintext bits are combined with a Pseudorandom cipher bit stream ( Keystream A bit is a binary digit, taking a value of either 0 or 1 Binary digits are a basic unit of Information storage and communication A word is a unit of Language that carries meaning and consists of one or more Morphemes which are linked more or less tightly together and has a Phonetic SEAL is actually a pseudorandom function family in that it can easily generate arbitrary portions of the keystream without having to start from the beginning. In Cryptography, a pseudorandom function family, abbreviated PRF, is a collection of Efficiently-computable functions which emulate a Random In Cryptography, a keystream is a stream of random or pseudorandom characters that are combined with a Plaintext message to produce This makes it particularly well suited for applications like encrypting hard drives.
The first version was published by Phillip Rogaway and Don Coppersmith in 1994. Phillip Rogaway is a professor of Computer science at the University of California Davis. Don Coppersmith is a Cryptographer and Mathematician. He was involved in the design of the Data Encryption Standard Block cipher at IBM Year 1994 ( MCMXCIV) was a Common year starting on Saturday (link will display full 1994 Gregorian calendar) The current version, published in 1997, is 3. Year 1997 ( MCMXCVII) was a Common year starting on Wednesday (link will display full 1997 Gregorian calendar 0. SEAL is covered by two patents in the United States, both of which are assigned to IBM. International Business Machines Corporation abbreviated IBM and nicknamed "Big Blue", is a multinational Computer Technology
References
- U.S. Patent 5,454,039 "Software-efficient pseudorandom function and the use thereof for encryption"
- U.S. Patent 5,675,652 "Computer readable device implementing a software-efficient pseudorandom function encryption"
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