Collaborate Disseminate
I have a need to encrypt OAuth access and refresh tokens stored in the Google Cloud Datastore.
The goal here is to ensure that if the Datastore entities are accessed independently of the code, the OAuth tokens will be encrypted and thus un… Continue reading PyCrypto based encrypted Property class for Google App Engine standard – is this AES implementation secure
I have to verify a signature using DSA FIPS 186-2 (I know it is not used anymore, but I need to make it work for a legacy system). My problem is I have the “y” DSA value, but I cannot work out how I can feed that into the Python code to cr… Continue reading How do I verify a signature using DSA and my own "y" value in Python?
I am doing a super small and simple program, where it seeks to understand this module a little more, but something very strange happens.
The code below returns:
Traceback (most recent call last):
File “.\crypto.py”, line 10… Continue reading ValueError: MAC check failed [migrated]
My goal is to code a program for ECC implementation. Right now i am at the basics and i am trying to follow an example found on the internet. I will give the code below. The problem is the after running the code i get an erro… Continue reading ECC protocol practical implementation in python [migrated]
I have JavaScript tied to an HTMl button, which does an AES-CGM encoding and logs the useful info to the console.
function strToArrayBuffer(str) {
let buf = new ArrayBuffer(str.length * 2);
… Continue reading Trailing garbage after Python decryption of JavaScript AES-CGM [migrated]
There was a time that encryption was almost a dirty word; a concept that really only applied to people with something to hide. If you said you wanted to encrypt your hard drive, it may as well have been an admission to a crime. But now more than ever it’s clear that encryption, whether it’s on our personal devices or on the web, is a basic necessity in a digital society. The age of Big Data is upon us, and unless you’re particularly fond of being a row in a database, you need to do everything you can to limit …read more
Continue reading Encrypt Data On the Fly On a Pi With Cryptopuck
Why can’t Bleichenbarcher’s Attack work for RSA exponents with values equal to 65537 and above? Does the fact that 65337 is a prime number have any relevance to it?
Continue reading Bleichenbarcher’s Attack on high value RSA Keys?
AES_ENCRYPT uses a 128 bit long key to encrypt the data, but how MySQL handle longer or shorter keys? I found out that PyCrypto for instances recomend to transform the key by using MD5, SHA-1, SHA-2, etc. hashes and then usin… Continue reading MySQL AES_ENCRYPT key length