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  • 0 posts edited
  • 3 helpful flags
  • 26 votes cast
Dec
29
comment A timestamping authority (digital notary)
Not exactly helpful, but you can try to stack type 0x40 PGP signature packets together in one PGP key. Problem is, I don't know of any implementation that creates type 0x40 keys.
Dec
16
comment What is the GnuPG process for going from a passphrase to a symmetric key?
@MichaelKjörling I think so.
Aug
11
comment RC2, RC4, RC5 key length
pretty sure they have to be multiples of 8 bits
Jun
10
comment How long to bruteforce a RSA key
crypto.stackexchange.com/questions/3043/…
Jan
16
comment Where i can find an AES implementation in python?
What do you mean by reviewed? Tested with the NIST CMVP? I can provide a pure python AES implementation, but its just a learning tool, not meant for actual usage
Jan
5
comment Example Rainbow Table Generation
@ponsfonze So should I just take the first 5 nibbles and hash that? what reduction functions do real rainbow table programs use? what makes any particular reduction function contain all values from 0 to 99999... ?
Jan
5
comment Example Rainbow Table Generation
@ponsfonze I'm not looking for an explanation of what a reduction function is or does. I'm looking for a FUNCTION. I have no idea what a good choice a function (or multiple functions) for a rainbow function is. I will be using c++ or python
Jan
4
comment Example Rainbow Table Generation
no... it says: The idea is to define a reduction function R that maps hash values back into values in P. any specific function R? Should I just use the ASCII version of a hash output and send it back into the hash?
Oct
16
comment Key Scheduling of International Data Encryption Algorithm (IDEA)
here's a java applet that shows actual calculations. Hopefully its helpful. The site is in German, but it shouldnt matter: informationsuebertragung.ch/indexAlgorithmen.html
Aug
2
comment MISTY1 Implementation error
that is a bug, but unfortunately, it didnt fix the implementation :(
Jul
23
comment Is this a correctly formatted PGP session key packet?
Please read the last sentence of the post. Also, m = sym alg(1 byte) + checksum(2 bytes) + PKCS-1 block type 02 conflicts with the rfc
Jul
22
comment Is this a correctly formatted PGP session key packet?
Bouncy castle didnt generate this key. I more or less manually did it. Also, i dont think the private key is necessary. I am not trying to validate the information. i want to know if the PGP format was followed. i should have given all the information. I just dont know if i converted everything into their proper strings. Also: crypto.stackexchange.com/questions/3284/…
Jul
9
comment Length of data to hash for PGP
it did take over a week to get an answer. i had hoped to get an answer sooner, by posting in multiple places. anyways, should i delete this, or leave it up?
Aug
22
comment Why does nobody use (or break) the Camellia Cipher?
If i remember correctly, Camellia is used by yahoo for some reason
Jul
15
comment Sites to find crypto intermediate values
i just looked through some of NESSIE's stuff, and it seems that the website hasnt been updated in quite some time. some of the links to test vectors are broken :(
Jul
15
comment Sites to find crypto intermediate values
thanks for the suggestions. i thought that my mars encrypt/decrypt implementation was correct, but because there was no intermediate key expansion example (only generated subkeys, which i somehow couldnt manage to get), i could not figure out where i programmed the key expansion code wrong.