Collaborate Disseminate
so as the title describes, i am trying to get the IV using the key, encrypted data, and plaintext data.
According to wiki, AES CBC uses the IV to XOR the first block of plaintext data with the IV, then encrypts the xor’d data, and doesnt u… Continue reading Getting AES-CBC IV using key, encrypted data, and plaintext data [closed]
I am trying to figure out when to use a new IV for an AES-CBC communication and whether my approach is safe.
Here is a quote from Thomas Pornin from a similar question:
So, to sum up: you must choose a new, random IV (with a
cryptographic… Continue reading AES CBC: When to use new IV [migrated]
I tried the settings below to remove the CBC cipher suites in Apache server,
SSLProtocol -all +TLSv1.2 +TLSv1.3
SSLCipherSuite ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1… Continue reading How do I remove/disable the CBC cipher suites in Apache server?
Please help me in Converting Below C# Code to Python Code.
This is the C# Code to Encrypt and Decrypt a String :
using System.Diagnostics;
using System.Security.Cryptography;
using System.Text;
using System;
public class Program {
publi… Continue reading Can We Convert C# Encryption Code to Python Code?
The following details are given:
Partial Key: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX11000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000011
Initialization Vector: E898EF8E91F8C9B201E6E29DF87EE152
Ciphert… Continue reading Is it possible to find an AES key given part of the key, the ciphertext, initialization vector and mode of encryption? [migrated]
I have a question about security when using AES128 CBC over a single block with an IV than can be identical. I am fairly new to the subject and checked a few publications and documentation but I could not find a clear answer.
I am limited … Continue reading For AES128 CBC is the IV required to be different for a single block with random data? [migrated]
What are some of the risks when encrypting “plaintext” with a receiver’s public key?
I have been Googling for hours, and been reading in the Computer Security Principles and Practice 3rd edition.
It’s NOT similar:
In PGP, why not just encrypt message with recipient’s public key? Why the meta-encryption?
When we perform encryption with Public or Private Key, Asymmetric AES with RSA and CBC 128, and when we use the padding as well. Why do we have to bother adding the additional:
Key + IV?
******************
* Encrypted Key *
*************… Continue reading Why bother to generate Key, IV and encrypt them?
I would like to know what encryption 1Password uses.
On the About the 1Password security model page, it says:
Your 1Password data is kept safe by AES-GCM-256 authenticated encryption. The data you entrust to 1Password is effectively impos… Continue reading What algorithm does 1Password use for encryption, AES-GCM-256 or AES-CBC-256?
I’m looking at the CBC-MAC vulnerabilities that arise when CBC-MAC is used incorrectly, specifically when the keys for encryption and authentication are reused. The source I’m relying on is the Wikipedia Article on the matter (https://en.w… Continue reading CBC-MAC vulnerability with reused keys