Symmetric Cryptography

Design and implementation of simple symmetric cryptographic protocols is a greater challenge than commonly believed. Text books, which mostly focus on the theoretical aspects of cryptographic primitives, are only of little help concerning the avoidance of plain and subtle weaknesses. The paper Applying Symmetric Encryption tries to close this gap. It addresses an audience with basic understanding of cryptographic terminology such as block ciphers. It summarizes potential vulnerabilities in basic symmetric encryption schemes based on very recent works.


cryptosource GmbH has an exhibition at the "Internet of Things" conference on October 19th, 2017 in Munich.


cryptosource GmbH has an exhibition at the embedded world 2017 in Nurnberg, Germany March 21st 2017

At Eurocrypt 2016 cryptosource presents a work about vulnerabilities of the random number generator of OpenSSL May 12th 2016