Getting Started with Keeloq

Getting Started with Keeloq
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Pinned
korhels

Posting Guidelines (read before posting)

Microchip Forum Guidelines By proceeding to post you agree to follow these guidelines. OUR MAIN GUIDELINE: We require all posts to be polite, constructive, and on topic. If you do this, the rest of the guidelines won't need more than a cursory review. Section I - The Golden Rules: Be respectful of a..

2008/01/05 19:41:30
Regular
joaomorenorf

CEC1702 how to write encrypted and signed code to flash

Hello everybody,Does anybody knows about how to encrypt, sign and write firmware to flash using CEC172 at MPLABX? I have already written my ECDSA and ECDH keys to eFuse, but I don't how to do the writing of to firmware to flash. The boot process isn't well explained at the datasheet also, so I don't..

2021/02/25 20:36:02
joaomorenorf

CEC1x02 Development Board - First Steps

Hi everybody, I'm trying to use DM990013 - CEC1x02 Development Board with CEC1702 microcontroller, but I'm having trouble with initial setup. I read the datasheet and I'm aware of programming eFuse. I don't know how, the datasheet covers only Clicker Boards and I'm using Microchip default boar..
4
2021/02/25 20:26:58
erding

Using the ATECC608A KDF command in HKDF mode

Hello! I want to use the ATECCs' KDF command in HKDF mode, however I am not able to get the result I am looking for. A short summary from RFC-5869: HKDF consists of two steps, extract and expand. Extract takes as input a IKM (input keying material) and a salt (optional) and creates a PRK (pseu..
3
2021/02/23 07:40:29
Abilio94

ATECC608A - SHA and SIGN Commands

Hello, Goal: Accomplish a frame signature using the hash SHA256 of some data. What is the error I'm getting: When I run the sign command, 0x0F status byte is returned, meaning that despite the command was correctly received by the chip, the current state of the chip does not allow to generate a sign..
7
2021/02/18 08:32:39
Abilio94

ATECC608A - Generated keys and sign algorithms

Hello, I've been using ATECC608A and I'm with some issues to achieve what I need (probably my fault). So, before using ATECC608A I was using a cryptographic built-in library (MBedTLS) and running it on a uC (XMC4500). To sign and verify frames, (1) I've created externally two public/private RSA 1024..
2
2021/02/10 03:29:53
Abilio94

ATECC608A always return 0xff as status code of a any command query

Hello, Context:I am evaluating a secure 4 click (MikroElectronika) which has an ATECC608A. I want to accomplish the following actions: Generate unique private/public keys, sign, verify signs and ecdh encryption. I am using an XMC4500 which communicates via I2C with the ATECC608A. Problem:Despite the..
4
2021/01/28 01:59:20
joegpapst

HCS301, Password encryption, time Send Data

Sorry I'm a newbie. It is possible to set an encryption password for all chips using the programmer. So I know what the password is without having to read the control? It is possible to select the time when CHIP sends the protocols. Example: send 50 times with a click of the button?..

2021/01/14 16:59:07

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