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Apr
23
comment Solving Vignere Encryption
@vignere_solve: No problem. Ps. I did solve it, and it turns out that one of the early assumptions I made is wrong. However, you can still decode most of the text despite the wrong assumption, and, once you do, it's not hard to figure out what the mistake it. Let me know if you need a further hint.
Apr
23
revised Solving Vignere Encryption
nicer histograms
Apr
23
answered Solving Vignere Encryption
Apr
21
awarded  hash
Apr
20
awarded  Nice Answer
Apr
20
answered How to calculate Modulo using a standard calculator for a one time pad encryption
Apr
20
answered Security of KDF1 and KDF2 (hash based KDF's)
Apr
19
answered What does it mean when two encrypted files, encrypted with the same method but with different keys, when xor'd together, produce a repeating pattern?
Apr
15
comment Block cipher and parity of permutation
Generalizing your first example, if we start with any permutation, and extend the state space being permuted by at least one extra bit (which does not affect the permutation and is not affected by it), then the resulting extended permutation will be even.
Apr
7
awarded  Nice Answer
Apr
3
revised Cryptographic system with double keys with reversible order
TeX ≠ C
Apr
1
comment What is h in this RSA variant?
Ugh... I looked at the paper to try and fix the broken math formatting in the question, but it turns out to be like that in the paper too. :-( Honestly, most of the paper looks a lot like SCIgen output anyway.
Mar
26
revised Lamport signature: How many signatures are needed to forge a signature?
fix incorrect terminology
Mar
26
answered Lamport signature: How many signatures are needed to forge a signature?
Mar
23
answered Encryption mode with chained algorithms
Mar
23
reviewed Satisfactory Secure degree reduction for Shamir's secret sharing
Mar
23
revised counting points on elliptic curve
edited tags
Mar
23
revised Can the AES encryption and decryption algorithms be described as a polynomial for a specific key?
edited tags
Mar
23
revised Cryptographic Arithmetic Toolbox/Software
edited tags
Mar
23
revised Secure degree reduction for Shamir's secret sharing
sometimes, duplicating a tag in the title *is* a good idea