All Questions
Tagged with password-based-encryption xor
4 questions
5
votes
0
answers
141
views
Upgrading key derivation by adding an XOR with a known value
In general, keys for password-based key derivation are derived from a password hash such as the old PBKDF2 function or Argon2, possibly followed by another derivation function to derive data and ...
- 94.5k
2
votes
1
answer
220
views
Password protection in ARJ: 3 characters of password are retrievable
On this site there is information that one can know first 3 characters (bytes) of the password without brute force. I know that ARJ in older versions has very simple encryption, i.e. XOR with ...
- 153
2
votes
3
answers
223
views
Long Random Key and XOR - How Secure?
I have an application that encrypts files in the following manner (I think I can hear sighs already but bear with me):
Start with two byte arrays generated from random strings of lengths l1 and l2 (...
- 23
1
vote
1
answer
438
views
How to add passphrase to an RSA key?
If I want to protect a private RSA key, do I just XOR the password into the key, or do I do something else? Is it secure?
Edit:
I got a good answer from a comment - Hash the password/passphrase with ...
