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4h
asked What is the fixed point attribute of DES (when used with weak-keys)
Dec
13
comment PRG variant as a commitment scheme
In this paper they informally define the plain model as one that provides only authenticated communication channels. Also they show a commitment protocol in that model. I'm not expert in commitments nor in the plain model and probably the argument you mentioned above is more general. Back to my question, I'm interesting in an efficient commitment scheme even if it relies on one-way-function, by efficient I mean that it is non-interactive and can treat an entire bit-string at once with low-cost (like a PRG/PRF).
Dec
11
comment PRG variant as a commitment scheme
I'm not sure that I understand you last comment, by "plain model" you mean that there does not exist a proven commitment scheme that is not relying on some assumption? (like one-way-function)
Dec
11
comment PRG variant as a commitment scheme
Thanks for the reference, this is too theoretically though. I'm looking for more practical/simple/efficient use of PRG, I mean that that the protocol is non-interactive - the only message is from the sender (committer) to the receiver , and the committed value is a bit-string rather than one bit.
Dec
11
asked PRG variant as a commitment scheme
Dec
9
comment Hamiltonicity proof of knowledge
*definition is copied word for word..
Dec
8
accepted HMAC ipad and opad choice
Dec
8
comment HMAC ipad and opad choice
Oh right. A maximum hamming distance makes them fully dependant.
Dec
8
comment HMAC ipad and opad choice
@Nova thank's for the comment, would you please attach some source (link) that I can look at?
Dec
7
revised HMAC ipad and opad choice
deleted 1 character in body
Dec
7
asked HMAC ipad and opad choice
Nov
17
answered plaintext distribution ,perfect secrecy cryptosystem
Nov
17
comment Collision resistant hash functions
Does the proof-of-work tag even related here?
Nov
17
answered Collision resistant hash functions
Nov
5
awarded  Critic
Nov
2
awarded  Citizen Patrol
Oct
31
revised what is contained in a public key certificate
edited body
Oct
31
answered what is contained in a public key certificate
Oct
27
awarded  Yearling
Oct
1
comment Bleichenbacher 1998 “Million message attack” on RSA
This might help crypto.stackexchange.com/questions/12688/…