The RSA Conferenceis attended by over10,000securityprofessionalseach year. The Cryptographers Track (CT-RSA), one of several parallel tracks at the c- ference, provides an excellent opportunity for cryptographers to showcase their research to a wide audience. CT-RSA 2005 was the ?fth year of the Cryptog- phers Track. The selection process for the CT-RSA program is the same as for other cryptography research conferences. This year, the program committee selected 23 papers from 74submissions (two of whichwerelater withdrawn) that covered all aspects of cryptography. The program also included...