10,719 reputation
11046
bio website vyznev.net
location Helsinki, Finland
age
visits member for 2 years, 8 months
seen 14 hours ago

I'm not really a cryptographer, I just play one on the internet.

Seriously, I'm just a programmer and mathematician interested in puzzles and information security. I don't have any kind of formal crypto training, but I've picked up a few things here and there over the years. Topics I'm particularly interested in include protocol design and analysis, classical ciphers and information-theoretically secure crypto techniques such as one time pads and secret sharing schemes.

Please consider any (original) code I post to Stack Overflow (and other Stack Exchange sites) to be released under CC-Zero unless stated otherwise. You may do whatever you want with it and don't have to credit me in any way, although of course that would be nice.


11h
awarded  hash
1d
awarded  Nice Answer
1d
answered How to calculate Modulo using a standard calculator for a one time pad encryption
1d
answered Security of KDF1 and KDF2 (hash based KDF's)
2d
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 the improved solution of RSA algorithm?
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 need to forge a signature?
fix incorrect terminology
Mar
26
answered Lamport signature: How many signatures are need 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
Mar
23
reviewed Satisfactory If PGP and GPG both follow the OpenPGP standard, are they 100% compatible in all use cases?
Mar
23
revised If PGP and GPG both follow the OpenPGP standard, are they 100% compatible in all use cases?
reduce snark level, minor copyedits
Mar
23
reviewed Satisfactory Certificate signature with SHA-1 and RSA: where do 1888 bits come from?