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US 2006/0143450 A1Published application
Method and apparatus for authenticating a password
OwnerNarendranath Airody Udupa, Bijo Thomasinventors
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OwnerNarendranath Airody Udupa, Bijo Thomasinventors
Estimating the term…
A password formed of several fields (101-105) is presentable in a series of instances (100, 110, 120, 130). The fields include at least one of (a) a static field (105) that does not change upon each instance of the password and (b) a dynamic field (101, 102) that changes with each instance of the password based upon extrinsic data. Further, there is a “hysteresis” field (or a “dynamic field with history”, 103, 104) which contains data that is a function of a preceding instance of the password. When a current presented instance (110) of the password is input/received, a comparison operation is performed in which the hysteresis field (113, 114) of the current presented instance of the password is compared using data retained since a prior instance of authentication of the password (101, 102).
A method of authenticating a password that is presentable in a series of instances and has a first set of fields (201, 203) and has a second field (113, 114, 202, 311, 313, 314), wherein the first set of fields comprises at least one of (a) a static field (105, 201 or 302) that does not change upon each instance of the password and (b) a dynamic field (101, 102, 203, 305 or 306) that changes with each instance of the password based upon extrinsic data, and wherein the second field is arranged to contain historic data that is a function of a preceding instance of authentication, the method comprising:
Apparatus for receiving and authenticating a password that is presentable in a series of instances and has a first set of fields (201, 203) and has a second field (202), wherein the first set of fields comprises at least one of (a) a static field (201) that does not change upon each instance of the password and (b) a dynamic field (203) that changes with each instance of the password based upon extrinsic data, and wherein the second field (202) is arranged to contain historic data that is a function of a preceding instance of authentication, the apparatus comprising:
A data carrier having stored thereon instructions and data which, when loaded into the memory (521) of a suitable computer (501), and when presented with a current presented instance of a password that is presentable in a series of instances and has a first set of fields (201, 203) and has a second field (202), wherein the first set of fields comprises at least one of (a) a static field (201) that does not change upon each instance of the password and (b) a dynamic field (203) that changes with each instance of the password based upon extrinsic data, and wherein the second field (202) is arranged to contain data that is a function of a preceding instance of authentication, cause the computer to:
Dependencies are inferred from the claim text.