2
votes
Advantages of AES vs XOR on a plain text file
Is the derivedOTP a One Time Password / One Time Pad at all in any aspect?
No. It's a stream cipher if it produces a key stream that is XOR'ed with the plaintext. That the code buffers all of it is ...
- 91.9k
2
votes
What is the advantage of CFB over OFB?
Advantages of CFB over OFB:
Ability to parallel decryption, and hence it has better performance.
Ability to random read access during decryption. There is no need to calculate all previous (expensive)...
- 21
1
vote
Accepted
Possible to encrypt message without knowing recipient public key?
What about:
Bob publishes a public key for some secure signature system. Alice trusts it, or will get a way to trust it.
Bob draws a random secret 256-bit key $k$.
Bob symmetrically encrypts the ...
- 138k
1
vote
Accepted
How to evaluate the minimum complexity of the key recovery when the success probability p is given？
For common cryptographic algorithms, there is no known lower bound to the complexity of key recovery with a given (and sizable) probability. We can't mathematically exclude the possibility of a much ...
- 138k
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