公开(公告)号：DE69706867D1

公开(公告)日：2001-10-25

申请号：DE69706867

申请日：1997-07-23

Applicant: IBM

Inventor： JOHNSON BYRON ,  KARGER ASHLEY ,  KAUFMAN WILLIAM ,  MATYAS MICHAEL ,  SAFFORD ROBERT ,  YUNG MORDECHAY ,  ZUNIC NEVENKO

IPC: G09C1/00 ,  H04K1/00 ,  H04L9/08 ,  H04L9/14 ,  H04L9/28 ,  H04L9/32

Abstract: The method for providing for recovery of a cryptographic key using a number of cooperating key recovery agents comprises generating a number of shared key recovery values such that the key may be regenerated from the shared key recovery values without requiring additional non-public information. The shared recovery values are made available to the key recovery agents to enable recovery of the key. A pair of communicating parties use the cryptographic key to communicate, and the key is set by one party and sent to the ther one. Alternatively the key may be set by both parties acting together.

公开(公告)号：DE69706867T2

公开(公告)日：2002-04-11

申请号：DE69706867

申请日：1997-07-23

Applicant: IBM

Inventor： JOHNSON BYRON ,  KARGER ASHLEY ,  KAUFMAN WILLIAM ,  MATYAS MICHAEL ,  SAFFORD ROBERT ,  YUNG MORDECHAY ,  ZUNIC NEVENKO

IPC: G09C1/00 ,  H04K1/00 ,  H04L9/08 ,  H04L9/14 ,  H04L9/28 ,  H04L9/32

Abstract: The method for providing for recovery of a cryptographic key using a number of cooperating key recovery agents comprises generating a number of shared key recovery values such that the key may be regenerated from the shared key recovery values without requiring additional non-public information. The shared recovery values are made available to the key recovery agents to enable recovery of the key. A pair of communicating parties use the cryptographic key to communicate, and the key is set by one party and sent to the ther one. Alternatively the key may be set by both parties acting together.