ID-based threshold decryption with non-reconstruction of the private key

An efficient ID-based encryption scheme called EPA was constructed and proved in the sense of plaintext awareness.Then EPA was modified to be a threshold ID-based threshold decryption scheme named ThEPA, which was featured by a property called non-reconstruction of the private key with it, a robust...

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Bibliographic Details
Main Authors: QIN Bao-shan 1, ZHOU Yuan2
Format: Article
Language:zho
Published: Editorial Department of Journal on Communications 2009-01-01
Series:Tongxin xuebao
Subjects:
Online Access:http://www.joconline.com.cn/zh/article/74654479/
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Summary:An efficient ID-based encryption scheme called EPA was constructed and proved in the sense of plaintext awareness.Then EPA was modified to be a threshold ID-based threshold decryption scheme named ThEPA, which was featured by a property called non-reconstruction of the private key with it, a robust key escrow scheme based on ThEPA was proposed.In ThEPA, the decryption key is distributed among n decryption servers, but a single private key could not be obtained even if securities of all these distributed servers are compromised.
ISSN:1000-436X