hashing
Cryptography: just do not!
- Albert Zenkoff
- 2012-10-16
- Technology, Algorithm, Cryptography, Development, don't, encryption, hashing, homegrown, philosophy, software, technology
Software developers regularly attempt to create new encryption and hashing algorithms, usually to speed up things. There is only one answer one can give in this respect: Here is a short summary of reasons why you should never meddle in cryptography. Cryptography is mathematics, very advanced mathematics There are only a few good cryptographers and ...
Read MoreSHA-3 is there!
- Albert Zenkoff
- 2012-10-04
- Technology, Algorithm, competition, hash, hashing, news, NIST, SHA, SHA-3
NIST has announced the end of the Secure Hash Algorithm competition the day before yesterday, naming Keccak as the winner and making it the SHA-3 algorithm. The complete announcement from NIST is here. One thing of note is that since the algorithm was developed by STMicroelectronics and NXP Semiconductors, the algorithm is heavily optimized for ...
Read MorePassword storage in summary
- Albert Zenkoff
- 2012-07-29
- Technology, bcrypt, hash, hashing, hashing algorithm, Password, password schemes, password storage, passwords
We discussed the password storage in the article Speaking of passwords…and concluded that password implementation requires a cryptographically strong, contemporary (as in “very, very slow”) one-way hash function with a randomly generated salt for every password. This is pretty much all you need to take care of. Salting is fairly straight-forward but it is essential to ...
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Speaking of passwords…
- Albert Zenkoff
- 2012-07-22
- Technology, database, encryption, hash, hashing, howto, Password, password database, password hashing, passwords, rainbow tables, random salt, salt, user information
Wouldn’t it be quite logical to talk about passwords after user names? Most certainly. Trouble is, the subject is very, very large. Creating, storing, transmitting, verifying, updating, recovering, wiping… Did I get all of it? It is going to take a while to get through all of that, do you reckon? Let’s split the subject ...
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