Network security: private communication in a public world
Network security: private communication in a public world
Firewalls and Internet security: repelling the wily hacker
Firewalls and Internet security: repelling the wily hacker
Applied cryptography (2nd ed.): protocols, algorithms, and source code in C
Applied cryptography (2nd ed.): protocols, algorithms, and source code in C
Protection and security on the information superhighway
Protection and security on the information superhighway
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Multiuser computer systems generally have an account for each user, which gives the user access to his or her files and to public files and programs. An account is protected by a password; as in ordinary usage, a password is a word or phrase that must be supplied in order to authenticate a user and permit access to a place or to information. Password-protected accounts typically reside on time-shared computers such as those run by an Internet Service Provider or by an employer, on workstations (q.v.) with a networked file server (q.v.), or even on a single-user computer that may be used by several people. Specific services such as email (q.v.) may also require password authentication to gain access to their data.