MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 587

• Manufacturer Part Number: MOD5234-100IR
• Description: MOD5234 10/100 ETHERNET MODULE
• Manufacturer: NetBurner Inc
• Type: Controllers & Processorsr

Specifications of MOD5234-100IR

• Interface: I²C, SPI, UART
• Voltage - Supply: 2.5V
• Mounting Type: Surface Mount
• Package / Case: Module
• Product: Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Format: -
• Baud Rates: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q4483564

Chapter 28
Message Digest Hardware Accelerator
(MDHA)
28.1
This chapter describes the Message Digest Hardware Accelerator (MDHA).
28.1.1
The MDHA is a hardware implementation of two of the world’s most popular cryptographic hash
functions: SHA-1 and MD5. SHA-1 and MD5 are both critical algorithms to the IPSec (IP
Security) Protocol, a fast-spreading protocol for authentication and encryption over the internet in
networking equipment. The MDHA also includes circuitry to automate the process of generating
an HMAC (Hashed Message Authentication Code) as specified by RFC 2104 and EHMAC
(Enhanced Hashed Message Authentication Code), using only the SHA-1 algorithm.
28.1.2
The MDHA computes a single message digest (or hash or integrity check) value of all the data
presented on the input bus, using either the MD5 or SHA-1 algorithms for bulk data hashing. The
MDHA includes these distinctive features:
Freescale Semiconductor
• MD5 one way 128-bit hash function specified in RFC 1321.
• SHA-1 one way 160-bit hash function specified by the ANSI X9.30-2 and FIPS 180-1
• HMAC support for all algorithms, as specified in RFC 2104.
• EHMAC support for the SHA-1 algorithm.
• EHMAC key support up to 160 bits.
• Processes 512 bit blocks organized as 16 × 32 bit longwords.
• Automatic Message and Key Padding.
• Internal 16x32 bit FIFO for temporary storage of hashing data.
standards.
Introduction
Overview
Features
Please note that the MCF5232, MCF5233, and MCF5234 do NOT
contain cryptography modules. Please refer to
device configurations.
MCF5235 Reference Manual, Rev. 2
NOTE
Table 1-1
for details on
28-1