The Signal protocol is a cryptographic messaging protocol that provides end-to-end
encryption for instant messaging in WhatsApp, Wire, and Facebook Messenger among …

This document describes the “X3DH”(or “Extended Triple Diffie-Hellman”) key agreement
protocol. X3DH establishes a shared secret key between two parties who mutually …

This comprehensive survey deliberated over the security of electronic payment systems. In
our research, we focused on either dominant systems or new attempts and innovations to …

Encrypted key transport with RSA-PKCS# 1 v1. 5 is the most commonly deployed key
exchange method in all current versions of the Transport Layer Security (TLS) protocol …

Abstract The TLS Internet Standard features a mixed bag of cryptographic algorithms and
constructions, letting clients and servers negotiate their use for each run of the handshake …

Post-quantum cryptography has known a Cambrian explosion in the last decade. What
started as a very theoretical and mathematical area has now evolved into a sprawling …

EMV (Europay Mastercard Visa) is the international standard implemented to secure
purchase and deposit/withdrawal transactions. It represents a set of security rules and …

We describe several attacks against the PKCS# 1 v1. 5 key transport mechanism of XML
Encryption. Our attacks allow to recover the secret key used to encrypt transmitted payload …

Digital contact tracing apps allow to alert people who have been in contact with people who
may be contagious. The Google/Apple Exposure Notification (GAEN) system is based on …

Modern cryptography does not only enable to protect your personal data on the Internet, or
to authenticate for certain services, but also evaluate a function on private inputs of multiple …