Security privacy and applied cryptography engineering : 12th International Conference SPACE 2022 Jaipur India December 9 12 2022 : proceedings This book constitutes the refereed proceedings of the 12th International Conference on Security Privacy and Applied Cryptography Engineering SPACE 2022 held in Jaipur India during December 9 12 2022.The 18 full papers included in this book were carefully reviewed and selected from 61 submissions. They were organized in topical sections as follows: symmetric cryptography; public key cryptography post quantum cryptography zero knowledge proofs; hardware security and AI; and network security authentication and privacy