Hey! I'm David, cofounder of zkSecurity and the author of the Real-World Cryptography book. I was previously a crypto architect at O(1) Labs (working on the Mina cryptocurrency), before that I was the security lead for Diem (formerly Libra) at Novi (Facebook), and a security consultant for the Cryptography Services of NCC Group. This is my blog about cryptography and security and other related topics that I find interesting.
$cur = 'plaintext'
$cur = md5($cur)
$salt = randbytes(20)
$cur = hmac_sha1($cur, $salt)
$cur = cryptoservice::hmac($cur)
[= hmac_sha256($cur, $secret)]
$cur = scrypt($cur, $salt)
$cur = hmac_sha256($cur, $salt)tl;dr: the md5 is here for legacy purpose, cryptoservice::hmac is to add a secret salt, scrypt (which is a kdf not a hash) is for slowing brute force attempts and the sha256 is here for shortening the output.
Here are some random popular articles:
Here are some random recent articles:
My book Real-World Cryptography is finished and shipping! You can purchase it here.
If you don't know where to start, you might want to check these popular articles:
Here are the latest links posted:
You can also suggest a link.
Comments
leave a comment...