Collaborate Disseminate
I need to encrypt some strings in a database, and contents of files, with an asymmetric key (probably RSA), but possibly symmetrically at some point. Many of these are a few dozen bytes, so overhead is a consideration, altho… Continue reading Asymmetric encryption for short strings and files
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How does SSL/TLS work?
3 answers
I’m attempting to discover which encryption al… Continue reading How can I determine which algorithm a certificate implements for data encryption? [duplicate]
After working on a an imaginary security related project, it was decided that the project is going to use the imaginary hashing function X.
There are various implementations of the hashing function available as packages, all… Continue reading Can a hashing function be implemented insecurely?
What happens if a laptop and a server don’t have a encryption algorithm in common?
Does IPSec abort the connection or does it always have default algorithms?
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How secure would it be if you applied custom algorithms (that you obviously wouldn’t reveal to the public) to a hashed password? Like splitting up a hashed string, shuffling it around, possibly even do something else with it to further shuffle it. Then shuffle it back and compare the user’s input to the original hash.
Then the next question, all of this shuffling is code, in a class, in a file. Can this not be reverse-engineered or somehow retrieved in some way?
Continue reading Custom password security algorithm? [duplicate]
Windows 10 has its own way of encrypting hashes, but these can be brute-forced by hashcat. One of our students created 2 of his own password encryption algorithms in python (One for encode, one for decode). Is there a way we … Continue reading Can we implement custom algorithms to encode and decode wifi password hashes between Windows 10 and our Router?
I am dealing with a self-made extension check in C#.
public static string GetFilename(string url) {
string filename = url.Substring(url.LastIndexOf(“/”) + 1);
if(filename.Contains(“.”)) {
string extension = f… Continue reading Bypassing file extension check [on hold]
TLDR: Which algorithm is safest if we exclude AES, Twofish, Serpent and Whirpool?
Full version:
Hello,
my threat model is archiving and backing up important and private files.
Files will be stored in many places including… Continue reading Which algorithm is safest if we exclude AES, Twofish, Serpent and Whirpool?
My predecessor left the company with hostility, leaving no written procedures behind and even destroying some info that was in place.
I’m trying to understand the system /method /algorithym he used to sort each of our client… Continue reading How numbers are assigned a group code [on hold]
PC wants to download a file from the cloud server but those files are encrypted, Let say by AES. What the best solution for this issue?
Thanks