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3 votes
1 answer
748 views

Is AES a group?

The question I'm wondering is whether the AES cipher is a closed cipher (which is equivalent to AES being a group). And this question interests me due to the lack of understanding of whether it is ...
Ss1996's user avatar
  • 53
1 vote
1 answer
190 views

What is the probability of decrypting AES-128-ECB if some of the information is available?

There is a JSON array like this: ...
accountnujen's user avatar
1 vote
1 answer
288 views

best encryption algorithm for encrypting a string

I am making a password manager , I am new to cryptography, so , can someone tell me if this can be a good solution? 1- the user inputs the email/password 2- all the payload gets encrypted with aes@...
alwaysInTheBasement's user avatar
0 votes
2 answers
487 views

Encrypting cryptocurrency seeds for cold storage

I’d like some feedback on an encrypting algorithm. I’m not rolling my own, but even putting together well-proved pieces may create many pitfalls. (I don’t know if I'm stretching questioning in this ...
Vbakke's user avatar
  • 103
4 votes
2 answers
19k views

How insecure is AES-128-CTR to encrypt any kind of data using the Ethereum keystore file format?

I am using the Ethereum keystore file format to encrypt any other data such a plain text or JSON. Here is an example of pseudocode of the implementation: ...
Enzo's user avatar
  • 151
0 votes
1 answer
631 views

Is my AES-128-CTR implementation secure enough to encrypt private keys and mnemonic seed? [closed]

I am building a cryptocurrency wallet online where everything is stored in the browser (No servers). At this moment I am storing all private keys encrypted using AES-128-CTR I've chosen this method ...
Enzo's user avatar
  • 151
2 votes
1 answer
1k views

How difficult is it to crack sha256(sha256(pin)) with a 6 digit pin and no salt?

My friend forgot the password to his electrum wallet but knows that it's a 6 digit pin. I looked into it and from what I can find electrum uses the sha256(sha256(pin)) to generate the key used to ...
vengefulduck's user avatar
6 votes
1 answer
1k views

Any use for now-defunct Mt Gox Yubikey? [closed]

As everyone is now aware, Mt Gox has declared bankruptcy. As what appears to be the very last thing they did, Mt Gox accepted my $35 and fulfilled my special Mt Gox Yubikey. Having just arrived in the ...
quinndupont's user avatar