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DS2460 Datasheet SHA-1 Coprocessor

Manufacturer: Maxim Integrated (now Analog Devices)

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General Description

The DS2460 SHA-1 Coprocessor with EEPROM is a hardware implementation of the ISO/IEC 10118-3 Secure Hash Algorithm (SHA-1), eliminating the need to develop software to perform the complex SHA computation required for authenticating SHA devices and for performing the validation of digitally signed service data.

The DS2460 communicates with a microcontroller through the popular I²C interface.

Applications include hosts of access control and electronic payment systems for token authentication and service data validation as well as generation of one-time-use encryption keys for short message encryption and decryption for messages not exceeding the length of a SHA-1 result, which is 20 bytes.

Overview

3/10 Abridged Data Sheet DS2460 SHA-1 Coprocessor with EEPROM www.maxim-ic.

Key Features

  • Dedicated Hardware-Accelerated SHA Engine for Generating SHA-1 MACs.
  • 112 Bytes User EEPROM for Storing End Equipment Property Data.
  • I²C Host Interface, Supports 100kHz and 400kHz Communication Speeds.
  • Three Address Inputs for I²C Address Assignment.
  • Single-Byte to 8-Byte EEPROM Write Sequences.
  • 64-Bit Unique Registration Number.
  • EEPROM Endurance: 200k Cycles per 8-Byte Block at 25°C.
  • 10ms max EEPROM Write Cycle.
  • Wide Operating Range: 2.7V to 5.5V, -4.

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
DS2465 DeepCover Secure Authenticator
DS2401 Silicon Serial Number
DS2405 Addressable Switch
DS2406 Dual Addressable Switch Plus 1Kb Memory
DS2408 1-Wire 8-Channel Addressable Switch
DS2411 Silicon Serial Number
DS2413 1-Wire Dual Channel Addressable Switch
DS2417 1-Wire Time Chip
DS2422 1-Wire Temperature/Datalogger
DS2423 4kbit 1-Wire RAM