in attached theorm qT mean A algorithm make at most qT trapdoor query.
qH2 mean A make at most qH2 hash function query.
e is the base of natural logarithm.
€' is possibility of success of algorithm B.
€ is possibility of success of algorithm A.
create inverted index which consist of words mapping to files contain this words. then i want to encrypt this inverted index by using some encryption algorithm.
07 August 2019 3,797 7 View
When i compute the time complexity of cipher text policy attribute based encryption CP-ABE . I found it O(1) by tracing each step in code which mostly are assignments operations. Is it possible...
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iam already read about RC2 encryption algorithm but for mor explanation , i want an example that explain the algorithm.
06 July 2018 367 0 View
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I have binary vector of 0s and 1s that i want to encrypt it then make search in it. First i convert vector into hashmap Which key represent index of each dimension in this vector and value...
09 October 2017 4,242 2 View
iam working in searchable encryption. first i make index for set of files, the index is B+ tree , the leaf of this tree is bloom filter which represent the words in each file. each bloom filter...
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in the following code in euclidean hash some of the result of the rand.nextGaussian() implementation is negative when set dimension 100 and w is 2. which affect in the hash method. public...
06 July 2017 2,749 5 View
i want to implement Pseudo Random Function for these two functions in java: f(sk,.)={0,1}^* multiply sk ---> {0,1}^k, where sk is secret key (a random key). g(.,.)= {0,1}^k multiply {0,1}...
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he paper propose scheme for search in encrypted data using the tree of bloom filters as data structure to represent the index of the files then encrypted the leaves of the tree which consist of...
05 June 2017 1,654 2 View
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