The tag has no wiki summary.

learn more… | top users | synonyms

0
votes
1answer
72 views

Question about use of IV in this cipher

Main cipher objective : Generate a keyed CSPRN stream, that does not expose useful information about the state of the CSPRNG, and xor this with the plaintext. To prevent an attacked who could somehow ...
3
votes
2answers
149 views

How do single use passwords work for an encrypted message

LastPass encrypts its data before sending it to their servers. The key for the data is generated using a combination of the master password and username. How then can a one-time password be used to ...
1
vote
0answers
106 views

Is TOTP or a timestamp encryption a better timestamp-based authentication token system?

Are there advantages to using TOTP over encrypting a timestamp with a shared secret, in cases where the readability or ease of typing the token are not important?