Method of securing a cryptographic key

Details Method of securing a cryptographic key Method of securing a cryptographic key

1998-01-15

2000-04-18

Swann, Tod R.

Cryptography

Key management

Key distribution

713194, H04L 900

Patent

active

060524685

ABSTRACT:
A method is disclosed for improving portability of secure encryption key data files. The method provides for re-securing key data files according to different security processes for mobility. For porting an encryption key secured using a fingerprint authentication process to a system having only a password authentication process, a user selects password authentication process, provides a fingerprint and is authorised, provides a new password and then the encryption key is accessed according to the fingerprint authentication process and secured according to the password authentication process. This allows the use of specialised security hardware at one location while retaining an ability to transport encryption keys in a secure fashion to other locations, which do not have similar security hardware.

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patent: 5719938 (1998-02-01), Hans et al.
patent: 5768387 (1998-06-01), Akiyama et al.
patent: 5774525 (1998-06-01), Kanevsky et al.
patent: 5774551 (1998-06-01), Wu et al.
patent: 5841970 (1998-11-01), Tabuki

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