Collaborate Disseminate
Yes! this sounds crazy, and it is, please let me give you some background about this…
I’m doing a self-checkin app for a hotel, this app will store this checkin data in google sheets, where the front desk staff can copy and paste it to … Continue reading Store credit card data in google sheets – Asymetric Encryption
As said in the title, I’ve to encrypt a message with RSA, generate a signature, and transmit everything over CAN-FD (suppose keys are already been exchanged). The problem is that a CAN-FD frame supports a total of 64 bytes of payload, but … Continue reading Transmit over CAN-FD a RSA-ecrypted and signed message, how to deal with message lenght?
We’ll break down the two main types of encryption — symmetric and asymmetric — before diving into the list of the 5 most commonly used encryption algorithms to simplify them…
The post Types of Encryption: 5 Encryption Algorithms &#… Continue reading Types of Encryption: 5 Encryption Algorithms & How to Choose the Right One
Let’s say I create a 100KB file only containing 1234567890, that is, a known value. This file would be sitting on several folders as bait.
Once a Rasomware hits the folder and encrypts this file (considering all other forms of anti-rasomw… Continue reading Can I find a private key for a known encrypted file?
I am working on a system that includes our dear friends Alice, Bob, and a server that is only partially trusted. I have spent the majority of the day reading up on various cryptography methods, but I have concluded that I need some help to… Continue reading Diffie-Hellman + Asymetric encryption kept simple, or alternatives to TLS [migrated]
From my understanding, except we meet the creator of an archive in person and verify the primary key fingerprint, we can never be sure, that the archive we download is really created by the person we think it is.
Therefore gpg warns us th… Continue reading Compare fingerprints of gpg –verify for files download with / without TOR
I need to generate a keypair for each user registered with my website. The user already has an assigned username and password (let’s assume that these credentials were assigned to the user and that he did not have to sign up to the website… Continue reading how to associate a public key with a user of a website
I can encrypt my files with a symmetric encryption algorithm like AES, or with an asymmetric encryption algorithm like RSA or ECC (I encrypt my files with my own public key). No communication is involved in this scenario. The latter, calle… Continue reading Symmetric versus asymmetric self encryption [closed]
My concern is with resource constrained devices with limited resources to perform verification of signatures e.g. RSA signature. What I know is that the asymmetric keys are use to determine that the symmetric key is coming from legitimate … Continue reading Is there a secure way to share a secret key to another entity without a use of PKI
Although this question may be out of scope, I’m wondering if there’s a reliable way to apply a “digital signature” to real life objects in order to prove your ownership of them to a degree.
As an example, let’s assume I bought my own offi… Continue reading "Digital" signatures on real life objects