Gamer2015
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Can iterated hashes be used to create cryptographically secure random data from strong random seed?
8 votes

No, a hash function can not be used directly to create cryptographically secure random data in general, even from a strong random seed. That being said, there might be hash-functions that also have ...

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AES-256-GCM transfer IV and AuthTag
Accepted answer
1 votes

Yes, the IV and the auth tag can be sent in plain. The auth tag is a tag the recipient can use to verify that the message has not been altered. This is important because AES-GCM acts as a stream ...

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E2E-Encrypted storage: What to do when the lifetime of a key is over?
Accepted answer
0 votes

A comment from Robert gave me the key-word I needed to be able to do some research myself, so I'll post what I have learned and how it should be done in the first place. I am not sure what the best ...

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How exactly does the detection of a cloned FIDO2 credential work?
Accepted answer
0 votes

After a device has been cloned we have two devices, the original and the cloned one. A cloned device is detected when the server receives a counter value that was lower than the previous one by using ...

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Does subdomain DNS cache poisoning depend on the authoritative name server ignoring requests for non-existing domains?
0 votes

As far as I know the issue is a little different, but I got my knowledge from a youtube video. (source: https://m.youtube.com/watch?v=7MT1F0O3_Yw) The issue seems to be that you can do a lot of ...

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Making already hashed wordlists of all possible combinations
0 votes

There are a few pointy to consider here. When storing passwords yourself you should take a look at this cheat sheet to do it properly: https://cheatsheetseries.owasp.org/cheatsheets/...

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Multiple devices encrypting data using the same key?
0 votes

I might have overlooked some things, but any additional input would be appreciated. I think the answer to this is a plain and simple "no". The problem reminds me of a Man-In-The-Middle ...

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