0
votes
1answer
55 views

Are there any secure ways to store the secret key used in a TOTP scheme?

I'm writing a little webapp that demonstrates 2 factor authentication. I'm using the TOTP protocol as described in RFC 6238. In our scheme, we are storing, in addition to a b-crypted password hash ...
5
votes
2answers
360 views

Encrypt user data when they log in with Facebook, Gmail, etc

I made a login system. The user can login by: using a normal email / password (bcrypted). using a service like facebook, gmail, etc. So far so good. Now I want to store sensitive information (ftp ...
1
vote
3answers
3k views

Database field type for password storage?

In the past I used varchar(255) for storing hashed passwords (no salt). Is this still enough? Or are longer fields required?