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3 EEPROM Memory and Data Zone Access Policies
3.2 Data Zone and Access Policies
3.2.1 Data Zone Data Types
The following section provides more details on the various types of data capable of being stored in the ECC608-TNGHNT data slots.
3.2.1.3 Secret Key

ECC608-TNGHNT

Introduction
Features
Applications
1 Pin Configuration and Pinout
2 Helium Network and DeWi Alliance
3 EEPROM Memory and Data Zone Access Policies
- 3.1 ECC608-TNGHNT Configuration Zone
- 3.2 Data Zone and Access Policies
  - 3.2.1 Data Zone Data Types
    The following section provides more details on the various types of data capable of being stored in the ECC608-TNGHNT data slots.
  - 3.2.2 Slot Configuration Terminology
    The following section provides a set of terms used to discuss configuration options. The terms are arranged alphabetically.
  - 3.2.3 ECC608-TNGHNT Slot Configuration Summary
    The ECC608-TNGHNT has 16 slots that are configured for different use cases. Below is a summary of those slots with their configuration and proposed uses for the ECC608-TNGHNT:
  - 3.2.4 ECC608-TNGHNT Detailed Slot Access Policies
- 3.3 ECC608-TNGHNT EEPROM One-Time-Programmable (OTP) Zone
4 Device Commands
5 I²C Interface
6 Electrical Characteristics
7 Package Drawings
8 Revision History
Microchip Information

3.2.1.3 Secret Key

This slot can be used to store a secret 32-byte value or key. This key can be used with the ECC608-TNGHNT’s symmetric key commands (GenDig, MAC, CheckMac, KDF, SHA/HMAC, AES).

Writing this key requires an encrypted write with the IO protection key as the write key. Therefore, the I/O Protection Key must be set before the secret key can be written.

The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.