The 6th International Conference on Cryptography and Information Security (CRIS 2020) will take place January 25-26, 2020 in Zurich, Switzerland. The conference aims to bring together researchers to present and discuss work related to cryptography, coding, and information security. Authors are invited to submit papers by November 23, 2019 on topics including cryptographic protocols, privacy, authentication, quantum cryptography, and more. Selected papers will be published in related journals.