This book constitutes the refereed proceedings of the Cryptographer's Track at the RSA Conference 2002, CT-RSA 2002, held in San Jose, CA, USA, in February 2002. The 20 revised full papers presented together with an invited paper were carefully reviewed and selected from 49 submissions. The papers are organized in topical sections on public key cryptography, efficient hardware implementations, symmetric cyphers, e-commerce and applications, digital signatures, public key encryption, and discrete logarithm.