This book constitutes the refereed proceedings of the Cryptographer's Track at the RSA Conference 2024, CT-RSA 2024, held in San Francisco, CA, USA, during May 6–9, 2024. The 18 full papers presented in this volume were carefully reviewed and selected from 46 submissions. The conference presents papers on subjects such as public key cryptography; symmetric cryptography; signatures; homomorphic encryption; identity-based encryption; constructions; and threshold signatures and fault attacks.