Method and system for securely transferring a data set in a data

Details Method and system for securely transferring a data set in a data Method and system for securely transferring a data set in a data

1997-11-25

2000-10-03

Swann, Tod R.

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Security kernel or utility

713200, H04K 100

Patent

active

061287350

ABSTRACT:
In a telecommunications system, data having a higher sensitivity and data having a lower sensitivity are identified within a data set. The data having a higher sensitivity is encrypted to produce encrypted sensitive data. Thereafter, the data having a lower sensitivity and the encrypted sensitive data are encrypted to produce an encrypted data set. The encrypted data set is then transferred from a sending unit to a receiving unit. Decryption information may be appended to the encrypted sensitive data before the data having a lower sensitivity and the encrypted sensitive data are encrypted to produce an encrypted data set. The decryption information may include an algorithm identifier, a key identifier, and receiver response instructions. At the receiving unit, the data set is decrypted to recover the data having lower sensitivity. A second decryption of the encrypted sensitive information recovers the data having a higher sensitivity. Appended decryption information may be used to locate and decrypt the encrypted sensitive information.

REFERENCES:
patent: 5455861 (1995-10-01), Faucher et al.
patent: 5555309 (1996-09-01), Kruy
patent: 5596718 (1997-01-01), Boebert et al.
patent: 5721781 (1998-02-01), Deo et al.
patent: 5857022 (1999-01-01), Sudia

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