153 reputation
213
bio website
location Third Rock from the Sun
age
visits member for 3 years, 1 month
seen Aug 15 at 22:32

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?
Jun
3
comment OpenPGP Signature Packet hashed data
i got it!!!! thanks!
Jun
3
comment OpenPGP Signature Packet hashed data
so when it says hash into the hash context, it means just update the instance of the hash algorithm? that is equivalent to just concatenating the strings, and it doesnt work
Jun
3
comment OpenPGP Signature Packet hashed data
What does it mean when it says hash context?
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.