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seen Oct 18 at 17:37

Aug
18
revised host-proof wiki description
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Aug
18
awarded  Tag Editor
Aug
18
revised host-proof wiki excerpt
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Aug
18
suggested suggested edit on host-proof tag wiki
Aug
18
suggested suggested edit on host-proof tag wiki excerpt
Aug
18
revised How do I store encrypted files on a web server and decrypt them locally?
edited tags
Aug
14
comment Random decomposition of symmetric key
Does the description for the secret-sharing tag sound like what you are trying to do?
Aug
13
answered Cryptographic GUID?
Aug
10
comment Is there a simple hash function that one can compute without a computer?
Perhaps when we find a good hand hash, we could also use it for generating site-specific passwords which can be executed in my own head?.
Aug
10
comment Do I have to recompute all hashes if I change the work factor in bcrypt?
@PaŭloEbermann: Ah, right -- some password hash functions allow one to "continue", but not bcrypt.
Aug
9
answered Entropy of system data - use all and hash, or trim least significant bits?
Aug
8
answered Secure private key storage
Aug
8
comment Secure private key storage
related: "How to create Java Key Store (.jks) file with AES encryption?"
Aug
3
answered Is there a simple hash function that one can compute without a computer?
Jul
31
wiki created host-proof description
Jul
31
wiki created host-proof excerpt
Jul
30
comment What is the difference between a stream cipher and a one-time-pad?
The one-time pad and Venona project articles say that the USSR and a few other organizations heavily used physical pads of random-looking letters called one-time pads. I think it's pretty likely that practically all of those pads were, in fact, generated with a 100% physical RNG, although I don't really have any evidence one way or another. I suspect that we may never know exactly how those pads were generated.
Jul
30
comment How do I calculate CRC32 mathematically?
Does "A Painless Guide to CRC Error Detection Algorithms" help?
Jul
30
comment Is there a simple hash function that one can compute without a computer?
Variation: In addition to forcing every entry in the input column to be unique, also force every entry in the output column to be unique. I.e.: After writing new input on the paper, flip a quarter 8 times, writing the output on scratch paper. If the scratch 8-bit output pattern is already in the output column, to prevent collisions, repeat flipping the quarter 8 more times. When you eventually get a scratch 8-bit output pattern not already in the output column, copy it to the output column. Alas, this variant is awkward for more than 128 unique inputs, and fails after 256.
Jul
28
answered Should I use md5 for my new application?