Can Knowing How an Encrypted File Changed Make it Vulnerable?IntroductionIn this article, we will explore the question of whether knowing how an encrypted file changed can make it vulnerable. We…
Is Encrypting App Settings File More Secure Than Encrypting Only the App Setting Contents? I have a question about the security of encrypting app settings files and app setting contents.…
Understanding the Workflow of SSL Enabled Sites In this article, we will explore the workflow of SSL enabled sites, from the client browser to the server. We will discuss how…
Understanding Metadata Exposed by OpenPGP What metadata is exposed by OpenPGP? Say I have a file encrypted with GnuPG, in isolation (i.e., I don’t have the relevant keys). Can one…
Alternative Solutions for Data-in-Transit ProtectionFor web clients, you are out of luck, the only two protocols supported by browsers are HTTP (without any security) and HTTPS (with TLS).For mobile applications,…
Ensuring SMTP Security: Protecting Your Username and PasswordRecently, I've been studying SMTP and have written a program that utilizes socket programming to send emails via extended SMTP (RFC2554). One concern…
Is there a cryptographic algorithm that encrypts files with a password and produces garbage when the password is incorrect? Standard cryptographic algorithms will do this. If you use the wrong…
How TLS Traffic Impacts Firewalls Traditionally, firewalls do not decrypt TLS traffic before relaying it to the client. Instead, they simply relay the encrypted packets and the client is responsible…
Understanding HMAC Calculation I've been trying to learn how HMAC is calculated but seem to be missing something. According to this wiki page, calling HMAC-SHA1 on an empty key and…
How to See the MAC Address of a Router on an Encrypted Wi-Fi Network Have you ever wondered if it's possible to learn the MAC address of a Wi-Fi router…