Options
Patent
Title
Verfahren und Vorrichtung zum Erzeugen und Speichern von einer Geheimkombination zugeordneten Hilfsgroessen sowie zum Wiedergewinnen der Geheimkombination
Other Title
Auxiliary variable producing and storing method, involves determining block position of each of data blocks for each of characters of secret combination, and storing determined block positions in memory as auxiliary variables
Abstract
(A1) Die vorliegende Erfindung betrifft ein Verfahren zum automatischen Erzeugen und Speichern von jeweils einer anwendungsspezifischen Geheimkombination (g) zugeordneten Hilfsgroessen in Abhaengigkeit von einem Hauptpasswort (MPW) und der jeweiligen Geheimkombination (g), so dass die entsprechende Geheimkombination (g) mit Hilfe des Hauptpasswortes (MPW) aus den dieser Geheimkombination (g) zugeordneten Hilfsgroessen rekonstruierbar ist, sowie ein entsprechendes Verfahren zum Wiedergewinnen einer Geheimkombination (g) aus so erzeugten Hilfsgroessen und dem entsprechenden Hauptpasswort (MPW). Die Erfindung betrifft ferner eine programmtechnisch zur Durchfuehrung eines solchen Verfahrens eingerichtete Vorrichtung.
;
DE 102006049814 A1 UPAB: 20080604 NOVELTY - The method involves calculating a pseudo-random signal sequence in dependence of an entered main password (MPW). Data blocks of definite length are extracted from the signal sequence, where the data blocks are assigned characters of an alphabet (A) by coding of the alphabet. The extracted data blocks are compared with characters (gi) of a secret combination (g) e.g. transaction number, under consideration of the coding. A block position (bpi) of each data block is determined for each character of the secret combination. The block positions are stored in a memory (4) as auxiliary variables. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a method for recovering a secret combination from an auxiliary variable and a main password (2) a program technical device for implementing a method for producing and storing an auxiliary variable and a method for recovering a secret combination from an auxiliary variable and a main password. USE - Method for producing and storing an auxiliary variable assigned to an application-specific secret combination e.g. password, personal identification number (PIN) and transaction number (TAN). ADVANTAGE - The method facilitates the production and storage of the auxiliary variable in an automatic manner as well as enables the recovery and release of the secret combination in an effective manner.
Inventor(s)
Wolf, R.
Schneider, M.
Patent Number
102006049814
Publication Date
2006
Language
German