Key escrow method with warrant bounds

Details Key escrow method with warrant bounds Key escrow method with warrant bounds

1995-03-10

1997-05-27

Tarcza, Thomas H.

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

380 30, 380 49, H04L 900

Patent

active

056339283

ABSTRACT:
A key escrow technique is disclosed which permits cryptographic limits on wiretapping warrants. Specifically, time limits on wiretaps may be enforced. In addition, the wiretapper is targeted to a specific party or specific pairs of parties communicating in a network.

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J. Kilian, `Failsafe Key Escrow,` MIT/LCS/TR-636, 17 Aug. 1994, (Princeton, NJ) presented at Rump Crypto '94.
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Administrative Office of the United States Courts, 1993 Report on Applications for Orders Authorizing or Approving the Interception of Wire, Oral, or Electronic Communications (Wiretap Report), 1993.
National Institute of Standards and Technology, Federal Information Processing Standards Publication 185, Escrowed Encryption Standard, Feb. 9, 1994, Washington, DC.
J. Kilian, T. Leighton, "Failsafe Key Escrow," presented at Rump Crypto '94.
T. P. Pedersen, "Distributed Provers with Application to Undeniable Signatures", Proc. Eurocript '91, Springer-Verlag LNCS 547, pp. 221-238.

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