The 9th International Conference on Cryptography and Information Security (CRIS 2023) will take place in Zurich, Switzerland, from May 20 to 21, 2023. Researchers are invited to submit original papers on various topics in cryptography and information security by March 25, 2023, with selected papers to be published in notable journals. Important dates include author notifications on April 22, 2023, and registration deadline for camera-ready papers on April 29, 2023.