1983 | OriginalPaper | Buchkapitel
Key Reconstruction
verfasst von : Michael Merritt
Erschienen in: Advances in Cryptology
Verlag: Springer US
Enthalten in: Professional Book Archive
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The key reconstruction problem is an application of (n,t)-threshold schemes. Such schemes permit an arbitrary piece of information to be ‘broken’ into n different ‘fragments,’ any t of which may be used to completely reconstruct the original information. No smaller number of fragments provides any information concerning the original, aside from its size in bits. These n fragments may then be distributed to different individuals, any t of whom can later cooperate in the reconstruction of the original information. For our purposes, the original information might be a private key in a public key cryptosystem.