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Oct
29
comment regular expression matching on encrypted data using secure multiparty computation
Interesting i will pose a separate question on that
Oct
29
comment regular expression matching on encrypted data using secure multiparty computation
imagine i have shares of each letter of each word from just one party , why do you think we cannot do frequency analysis ? If the secret shares are not created from same polynomial, i dont think we can do meaningful operations. if they are from same poly then we can do frequency analysis as they are consistent
Oct
29
awarded  Custodian
Oct
29
reviewed No Action Needed Algorithm for generating OAuth tokens
Oct
29
asked regular expression matching on encrypted data using secure multiparty computation
Oct
28
comment How to toggle a bit homomorphically ?
please create a separate question for this
Oct
28
comment How to toggle a bit homomorphically ?
Be very careful, MULT is AND gate (and ADD is OR gate) only for bit level operations. Homomorphism is not defined for NOT gates in general to simulate AND using OR and NOT. At bit level NOT gate is additive inverse
Oct
28
awarded  Notable Question
Oct
26
awarded  Custodian
Oct
26
accepted Security guarantees of Shamir's secret sharing when some co-efficients are zero
Oct
22
awarded  Popular Question
Oct
21
answered Is there an existing cryptography algorithm / method that both encrypts AND compresses text?
Oct
20
revised Security guarantees of Shamir's secret sharing when some co-efficients are zero
added 1 character in body
Oct
20
comment Security guarantees of Shamir's secret sharing when some co-efficients are zero
So does this mean , if few co-efficients are zeros , then attacker has lesser work in guessing them so less securre ?
Oct
20
comment Security guarantees of Shamir's secret sharing when some co-efficients are zero
can you explain a bit more ? you mean an attacker is guessing the co-efficients to reconstruct the polynomial ?
Oct
20
comment Can the round function $F$ in a Feistel Network be practically any non-invertible function?
Please refer to the proof here crypto.stackexchange.com/questions/18611/…
Oct
20
revised Security guarantees of Shamir's secret sharing when some co-efficients are zero
deleted 4 characters in body
Oct
20
asked Security guarantees of Shamir's secret sharing when some co-efficients are zero
Oct
6
comment ABE Attributes Based Encryption
Also please be clear on whether you are asking about CP-ABE or KP-ABE.
Oct
4
awarded  Yearling