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Mar
30
revised How should I implement a secure recovery of encryption?
add "host-proof" tag
Mar
26
revised Finding sum of two encrypted numbers
add "homomorphic-encryption" tag
Feb
23
revised How to make a “zero knowledge” cache/key-value store
I think the "host-proof" tag is more relevant than the "aes" tag.
Dec
15
revised Best modern cipher for morse code?
add tag "format-preserving"
Jun
6
revised Is the one-time-pad a secure system according to modern definitions?
tweak title (see comment)
Jun
5
revised Is the one-time-pad a secure system according to modern definitions?
yet another example
Mar
22
revised Is there a simple hash function that one can compute without a computer?
add pen-and-paper tag
Dec
23
revised Implement deniable encryption with AES/RSA
add "deniable-encryption" tag
Sep
2
revised Repeatable crypto
clarify (I hope)
Sep
2
revised Repeatable crypto
say a few words about chosen-plaintext attack
Aug
31
revised Repeatable crypto
add "host-proof" tag
Jul
28
revised How does a rolling code work?
yet another app note
May
6
revised Encrypting a short phrase into two keys. both with length of 32letters
more fun with visual cryptography
Apr
27
revised Is there a cryptographic method to add noise to a plaintext instead of actually encrypting it?
move comment by questioner into main part of question; add tags that seem relevant
Apr
27
revised Can I construct a zero-knowledge proof that I solved a Project Euler problem?
fix broken link; divide into sections.
Dec
9
revised Alphabetic Substitution with Symbols
linkfix
Nov
25
revised Is the following symmetric design secure?
fix oops -- need a random permutation here, not a random function.
Nov
23
revised Is the following symmetric design secure?
rough draft of a proof
Nov
13
revised Attack XOR encryption of binary data compressed by zlib with known key length (very short key)
Is this what you really meant?
Nov
13
revised Determine the Key given ciphertexts and plaintexts?
forgot to update B0 and B1