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| A THRESHOLD KEY ESCROW SYSTEM BASED ON RSA |
| Sun Xiaorong; Wang Yumin |
| National Key Laboratory on ISN of Xidian University Xi 'an 710071 |
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Abstract This paper presents a (t + 1,n)-threshold key escrow system with tolerance of t failure or withholding escrow agents on the basis of key generating of Ref.[1] and key spitting of Ref.[2], which can prevent from subliminal key attack, verify the pieces of the user s private key, effectively discover the failure or corrupted escrow agents and backup key for users. This scheme can used to real-time communication encryption and file encryption.
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Received: 16 December 1997
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1999, Vol. 21 
