5
votes
virtual encryption vs non virtual?
They don’t know what they’re talking about, “virtual encryption” isn’t a term used in cryptography and has no obvious meaning here.
- 51
3
votes
What is the difference between public and private RSA keys?
Could someone not generate a pair and give out the 'private' key while never sharing the public and have the whole system work the same way but in reverse?
Well, no. Actually, we could generate a ...
- 150k
2
votes
virtual encryption vs non virtual?
“Virtual encryption” doesn't mean anything, so they were probably not criticizing the encryption in Veracrypt, but some other aspect of the software.
It's possible that they meant a virtual disk (i.e. ...
2
votes
Accepted
E2EE Group message encryption
Let Alice, Bob and Charlie be in a group chat, and let Charlie be the leaving member. The reason why Alice and Bob need to erase their sender keys and start over is that all secret key material known ...
- 36
2
votes
Format-Preserving Encryption with FF3 Algorithm - Minimum Length Constraints
The restrictions against small input in FF3 are for security reasons: it's required that the domain size is at least one million (in NIST SP 800-38G rev. 1 draft; one hundred in the original NIST SP ...
- 144k
2
votes
Accepted
Bound for Zhandry's result in Quantum random Oracle Model using the inequality of Markov brothers
If we write $\lambda=(x+1)/2$ and $f(x)=p_{\lambda_0}((x+1)/2)=p_{\lambda_0}(\lambda)$, we see that $f(x)$ is a polynomial of degree $n=d$ and $|f(x)|\le 1$ in the interval $x\in[-1,1]$ (which is the ...
- 25.4k
2
votes
Accepted
why there is a need to send iv with cipher text?
TL;DR: Since TLS 1.1, CBC encryption is with random IV explicitly transmitted for each packet, because that's safe. It's made no use of the derived IVs pointed by the question.
I first consider ...
- 144k
1
vote
Security concerns of FF3 for in-place encryption
The only insurmountable issue with using Format Preserving Encryption in the context of database encryption is that, for a given entry in the database, the plaintext to ciphertext relation is a ...
- 144k
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