We detect you are using an unsupported browser. For the best experience, please visit the site using Chrome, Firefox, Safari, or Edge. X

Maximize Your Experience: Reap the Personalized Advantages by Completing Your Profile to Its Fullest! Update Here

Stay in the loop with the latest from Microchip! Update your profile while you are at it. Update Here

Complete your profile to access more resources.Update Here!

AN8184

Title	Title AVR232: Authentication Using SHA-256
Name	Name AN8184
Date	Date 05/15/2019
Description	Description This Application Note describes how to authenticate using encryption (SHA-256) in a way that enables a slave to authenticate towards a master. For example, to make sure the connected slave is a legit accessory for the master. The information in this document is intended as an introduction and overview to cryptographic authentication. The reader is encouraged to find more thorough information about specific algorithms and attacks from other sources.

Files

Title	Title	Download	Date	Size
AN_8184 Source Code - Using encryption (SHA-256) in a way that enables a slave to authenticate towards a master. E.g. to make sure the connected slave is a legit accessory for the master. 175.7 KB 01/02/2017	AN_8184 Source Code - Using encryption (SHA-256) in a way that enables a slave to authenticate towards a master. E.g. to make sure the connected slave is a legit accessory for the master.	Download	01/02/2017	175.7 KB

Silicon Products

Title	Product	Title
ATmega2564RFR2	ATmega2564RFR2
ATmega256RFR2	ATmega256RFR2
ATmega644RFR2	ATmega644RFR2
ATmega128RFA1	ATmega128RFA1
ATmega64RFR2	ATmega64RFR2
ATmega128RFR2	ATmega128RFR2
ATmega1284RFR2	ATmega1284RFR2
ATmega6450 Newer Device Available ATMEGA6450A	ATmega6450	Newer Device Available ATMEGA6450A
ATMEGA809	ATMEGA809
ATMEGA4809	ATMEGA4809
ATMEGA1609	ATMEGA1609
ATmega3250PA	ATmega3250PA
ATmega6450A	ATmega6450A
ATmega645A	ATmega645A
ATmega324PA	ATmega324PA
ATmega649A	ATmega649A
ATmega164A	ATmega164A
ATmega164P ‎	ATmega164P	‎
ATmega165P Newer Device Available ATMEGA165PA	ATmega165P	Newer Device Available ATMEGA165PA
ATmega48PA	ATmega48PA
ATmega16U2	ATmega16U2
ATmega644A	ATmega644A
ATmega48A	ATmega48A
ATMEGA165PA	ATMEGA165PA
ATmega169P Newer Device Available ATMEGA169PA	ATmega169P	Newer Device Available ATMEGA169PA
ATmega168A	ATmega168A
ATmega3290 Newer Device Available ATMEGA3290A	ATmega3290	Newer Device Available ATMEGA3290A
ATmega32U2	ATmega32U2
ATmega3290A	ATmega3290A
ATMEGA808	ATMEGA808
ATMEGA4808	ATMEGA4808
ATMEGA1608	ATMEGA1608
ATMEGA3209	ATMEGA3209
ATMEGA3208	ATMEGA3208
ATmega325A	ATmega325A
ATmega6450P	ATmega6450P
ATmega325P Newer Device Available ATMEGA325PA	ATmega325P	Newer Device Available ATMEGA325PA
ATmega325PA	ATmega325PA
ATMEGA644PA	ATMEGA644PA
ATmega6450 Newer Device Available ATMEGA6450A	ATmega6450	Newer Device Available ATMEGA6450A
ATmega64A	ATmega64A
ATmega6490 Newer Device Available ATMEGA6490A	ATmega6490	Newer Device Available ATMEGA6490A
ATmega6490P	ATmega6490P
ATmega644 Newer Device Available ATMEGA644A	ATmega644	Newer Device Available ATMEGA644A
ATmega2561	ATmega2561
ATmega16U4	ATmega16U4
ATmega328 Not Recommended for new designs	ATmega328	Not Recommended for new designs
ATMEGA328PB	ATMEGA328PB
ATmega645 Newer Device Available ATMEGA645A	ATmega645	Newer Device Available ATMEGA645A
ATMEGA324PB	ATMEGA324PB
ATmega324A	ATmega324A
ATmega325 Newer Device Available ATMEGA325A	ATmega325	Newer Device Available ATMEGA325A
ATmega6490A	ATmega6490A
ATmega164PA	ATmega164PA
ATMEGA162	ATMEGA162
ATmega48PB	ATmega48PB
ATmega48P ‎	ATmega48P	‎
ATmega128	ATmega128
ATmega2560	ATmega2560
ATmega16M1	ATmega16M1
ATmega88A	ATmega88A
ATMEGA64M1	ATMEGA64M1
ATmega169A	ATmega169A
ATmega1284P	ATmega1284P
ATmega128A	ATmega128A
ATMEGA3290PA	ATMEGA3290PA
ATmega329PA	ATmega329PA
ATmega329A	ATmega329A
ATmega88P ‎	ATmega88P	‎
ATmega329P Newer Device Available ATMEGA329PA	ATmega329P	Newer Device Available ATMEGA329PA
ATmega8A	ATmega8A
ATmega8 ‎	ATmega8	‎
ATmega168PB	ATmega168PB
ATmega32A	ATmega32A
ATmega32M1	ATmega32M1
ATmega1284	ATmega1284
ATmega32U4	ATmega32U4
ATmega88PB	ATmega88PB
ATmega88PA	ATmega88PA
ATmega8U2	ATmega8U2
ATmega168PA	ATmega168PA
ATmega8515	ATmega8515
ATmega324P ‎	ATmega324P	‎
ATmega645P	ATmega645P
ATmega32 Newer Device Available ATMEGA32A	ATmega32	Newer Device Available ATMEGA32A
ATmega644P Newer Device Available ATMEGA644PA	ATmega644P	Newer Device Available ATMEGA644PA
ATmega3250A	ATmega3250A
ATmega3250P Newer Device Available ATMEGA3250PA	ATmega3250P	Newer Device Available ATMEGA3250PA
ATmega168 ‎	ATmega168	‎
ATmega649 Newer Device Available ATMEGA649A	ATmega649	Newer Device Available ATMEGA649A
ATmega3250	ATmega3250
ATmega649P	ATmega649P
ATmega16A	ATmega16A
ATmega64 Newer Device Available ATMEGA64A	ATmega64	Newer Device Available ATMEGA64A
ATmega640	ATmega640
ATmega169PA	ATmega169PA
ATmega1281	ATmega1281
ATmega3290P Newer Device Available ATMEGA3290PA	ATmega3290P	Newer Device Available ATMEGA3290PA
ATmega16 ‎	ATmega16	‎
ATmega329 Newer Device Available ATMEGA329A	ATmega329	Newer Device Available ATMEGA329A
ATmega168P ‎	ATmega168P	‎
ATmega8535	ATmega8535
ATmega1280	ATmega1280
ATmega88 ‎	ATmega88	‎
ATMEGA328P ‎Not Recommended for new designs	ATMEGA328P	‎Not Recommended for new designs
ATmega48 ‎	ATmega48	‎
ATMEGAET128	ATMEGAET128
ATMEGAS128 Radiation Tolerant AVR8 MCU	ATMEGAS128	Radiation Tolerant AVR8 MCU