Transparent data integrity auditing and transparent encrypted data deduplication protocol based on block chain
A data integrity and encrypted data technology, applied in the field of information security, can solve problems such as bias, users cannot stay online all the time, delay auditing, etc., and achieve the effect of ensuring security
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[0018] The present invention is described in further detail below in conjunction with embodiment.
[0019] The present invention provides a blockchain-based transparent data integrity audit and transparent encrypted data deduplication protocol, in which the symbols involved are declared in the following table:
[0020]
[0021]
[0022] In this embodiment, the specific process is as follows:
[0023] 1. Initialization:
[0024] Initialization parameter set PP={p,P,G,G T ,e,h,h 1 ,H,l,q E}, where G is an additive group whose order is a prime number p and whose generator is P, e:G×G→G T is a bilinear map, h, h 1 , H are hash functions, l is the system security parameter, q E It is the number of times that the system stipulates that each user requests the key from the key server in each period;
[0025] The user randomly selects α∈Z p * As the user's private key sk, and calculate y=αP as the user's public key pk; n key servers KS i , i∈[1,n] shared secret value, Z...
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