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Security Dictionary
Can't tell 'smtp' from 'snmp'? Find the precise meaning of these and hundreds of other security-related terms in our convenient and up-to-date Security Dictionary.
S/Key
(I) A security mechanism that uses a cryptographic hash function
to generate a sequence of 64-bit, one-time passwords for remote
user login. [R1760]
(C) The client generates a one-time password by applying the MD4
cryptographic hash function multiple times to the user's secret
key. For each successive authentication of the user, the number of
hash applications is reduced by one. (Thus, an intruder using
wiretapping cannot compute a valid password from knowledge of one
previously used.) The server verifies a password by hashing the
currently presented password (or initialization value) one time
and comparing the hash result with the previously presented
password.
