Collaborate Disseminate
In asymmetric encryption, how does one get a private key from the certificate? If one can’t get a private key from a certificate, how does data that is encrypted at server-side (I believe by public key) get decrypted at client-side if the … Continue reading in asymmetric encryption, how from certificate get private key or how it works [duplicate]
I’m trying to understand how Kerberos works, in particular how the initial client sends a request to the Access Server. Some YouTube videos I’ve seen say the initial request is partially encrypted using the client’s password. First, what i… Continue reading How is the initial request made to the Access Server in Kerberos?
Let’s say I want to make a messaging(just an example, take it as any data) web(react + node) application(more like an email rather than chat) with end-to-end encryption. So at some point, I will want to send an encrypted(with public key) m… Continue reading Need some clarification regards end-to-end encryption process
I have a battle-tested black box crypto library which was developed by industry recognized experts. This box keeps your private key in a hardware backed, tamper proof storage. It only does one thing. Takes an 8 digit all ascii chars as inp… Continue reading RSA encryption with plaintext+random data
Can the same public key be used with RSA, Elliptic Curve, or other asymmetric encryptions algorithms? If not, how is a public key bound to a X.509 Certificate? Presumably, you’d have to know the algorithmic choice before determine a public… Continue reading How can you bind a public key to a certificate if the public key depends on the choice of algorithms?
I want to make an application that uses oauth2 and JWT as access tokens for securing some apis and providing authentication mechanisms. The application is a microservice architecture and wirtten in python. It would be deployed on AWS. So I… Continue reading Is creating asymmetric keys dynamically and storing in memory safe?
Public key is for encryption, and private key is for decryption in PKIs.
And digital signature employs the PKIs.
How to use a private key for encryption, and using public key for decryption which violate asymmetric cryptography?
from geeks… Continue reading Digital Signature uses private key for encryption, and public key for decryption? [duplicate]
I’m building an open-source notes app using electron.
I’ll be using rxdb which uses crypto-js to encrypt fields using AES-256 after getting a passphrase and using pbkdf2 to generate a key. Rxdb is a document store in the browser.
I saw a c… Continue reading How could I improve the security of my design?
I am reading about the Diffie–Hellman key exchange in TLS 1.3. So the first step here is that the two parts Alice and Bob t agree on a large prime p and a nonzero integer g modulo p. Then Alice and Bob make the values of p and g public kn… Continue reading Diffie–Hellman key exchange in TLS 1.3
I am using GnuPG 2.2.20 to create my key pair.
I have successfully created a key pair, now I want to create a backup copy in case of HDD failure.
Following the instruction here, I have tried
gpg –output backupkeys.pgp –armor –export-sec… Continue reading What is the correct way to create a backup copy of a PGP key pair?