Linked Questions

Alice: I need the file Bob: Sure, and I want to encrypt it first. Please put the strong PGP symmetric key with the copy&paste method to https://onetimesecret.com/ and send me the link. Alice. ...

I would like to know if the following ideas are feasible: Hash function is one-way function. Generate public key from private key is irreversible(asymmetric cryptography). User password entry -> ...

Let us assume that there is a man in the middle who can read (not modify) all the data that's being transferred between a client and the server. We want the client to be able to log in without ...

I (will) have a binary executable file. It's only permission is user-execute. It cannot be read by user, group, or world. The owner of the file is the Apache user. I don't want the apache user to be ...

For regular traffic in mesh network (between Internet of Thing devices) customer decided to use one of two options: DTLS PSK ciphersuite - DTLS based on pre-shared symmetric key or direct use of AES -...

I have a web based application for a network that needs to be able to run without internet access. I have wanted to add TLS to protect certain data in transport. I have explored options like Lets ...

I saw a video detailing how to write a simple salted hash program in C# here. Below is the code they wrote (slightly edited for console applications): using System; using System.Text; using System....

Say my password is abc. I want to send it to the server over HTTP. I could send it in plaintext and let the server hash it and compare it to the entries in its database, but then anyone that can see ...

In using Argon2 for hashing passwords in my application, I've noticed it generates a string like this (e.g. for password "rabbit"): $argon2i$v=19$m=65536,t=3,p=1$YOtX2//7NoD/owm8RZ8llw==$...

Consider the following scenario: You are providing VPN access for a number of machines running Windows 10. The machines are configured and hardened according to company standards. You rely on machine ...

. . . Or is that discouraged, and it's better to use separate key pairs for TLS and JWT? (It would be slightly easier to manage one key pair only, but probably better security to use two separate key ...

I am 14 years old and I have just created an encryption program with a friend. I wanted to know if anyone here could give me back any feedback on it. Here is how the program works, Imagine you want ...

I'm using the following authentication scheme for my current MERN project. I'd like to know if it's secure, particularly the renewal approach (more details after the description). User signs in over ...

I'm writing reliable UDP implementation and I want it to be secure. Also, I want to make use of elliptic curve cryptography. I don't have the proper education to really understand the math behind this ...

There's a Classic ASP application at my job that is (I believe) highly vulnerable to SQL injection. I want to prove to management that this code isn't secure, but all I'm able to do is insert "SQLINJ" ...