Smart Card Crypto-Coprocessors for Public-Key Cryptography

نویسندگان

  • Helena Handschuh
  • Pascal Paillier
چکیده

This paper intends to provide information about up-to-date performances of smart-card arithmetic coprocessors regarding major public-key cryptosystems and analyze the main tendences of this developing high-tech industry and related markets. We also comment hardware limitations of current technologies and provide a technique for extending them by virtually doubling their capacities.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

On Quisquater's Multiplication Algorithm

Smart card technologies have had a huge impact on the development of cryptographic techniques for commercial applications. The first cryptographic smart card was introduced in 1979. It implemented the Telepass 1 one-way function using 200 bytes! Next came smart cards with secret-key and public-key capabilities, respectively in 1985 and 1988. Implementing an RSA computation on a smart card was (...

متن کامل

Low-Cost Double-Size Modular Exponentiation or How to Stretch Your Cryptoprocessor

Public-key implementers often face strong hardware-related constraints. In particular, modular operations required in most cryptosystems generally constitute a computational bottleneck in smart-card applications. This paper adresses the size limitation of arithmetic coprocessors and introduces new techniques that virtually increase their computational capacities. We suspect our algorithm to be ...

متن کامل

CORSAIR: A SMART Card for Public Key Cryptosystems

Algorithms best suired forflexible smart card applications are based on public key cryptosystems RSA, zero-knowiedge protocols . . . Their practical implementation (execution in =:I second) entails a computing power beyond the reach of classical smart cards, since large integers (512 bits) have to be manipulated in complex ways (exponentiation). CORSAIR achieves up to 40 (8 bit) MIPS with a clo...

متن کامل

XMX: A Firmware-Oriented Block Cipher Based on Modular Multiplications

This paper presents xmx, a new symmetric block cipher optimized for public-key libraries and microcontrollers with arithmetic coprocessors. xmx has no S-boxes and uses only modular multiplications and xors. The complete scheme can be described by a couple of compact formulae that offer several interesting time-space trade-offs (number of rounds/key-size for constant security). In practice, xmx ...

متن کامل

Limitations Regarding Certificate Handling on Smart Cards

A public-key infrastructure (PKI) typically requires use of tamper-proof devices that can perform crypto computations and store highly sensitive data like private keys. Smart cards are the low cost devices that satisfy these requirements and, as a result, they can boost the wide deployment of a PKI. Yet certain limitations exist regarding the handling of certificates, one of the supporting mech...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1998