DS28E36
PRODUCTIONDeepCover Secure Authenticator
Provides Affordable Elliptic-Curve Public-Key Authentication Security to Protect Your Development Investment
- Part Models
- 4
- 1ku List Price
- Starting From $1.49
Overview
- ECC-256 Compute Engine
- FIPS 186 ECDSA P256 Signature and Verification
- ECDH Key Exchange with Authentication Prevents Man-in-the-Middle Attacks
- ECDSA Authenticated R/W of Configurable Memory
- SHA-256 Compute Engine
- FIPS 180 MAC for Secure Download/Boot Operations
- FIPS 198 HMAC for Bidirectional Authentication and Optional GPIO Control
- Two GPIO Pins with Optional Authentication Control
- Open-Drain, 4mA/0.4V
- Optional SHA-256 or ECDSA Authenticated On/Off and State Read
- Optional Set On/Off after Multiblock Hash for Secure Boot/Download
- RNG with NIST SP 800-90B Compliant Entropy Source with Function to Read Out
- Optional Chip Generated Pr/Pu Key Pairs for ECC Operations
- 17-Bit One-Time Settable, Nonvolatile Decrement-Only Counter with Authenticated Read
- 8Kbits of EEPROM for User Data, Keys, and Certificates
- Unique and Unalterable Factory Programmed 64-Bit Identification Number (ROM ID)
- Optional Input Data Component to Crypto and Key Operations
- Single-Contact 1-Wire Interface Communication with Host at 11.7kbps and 62.5kbps
- Operating Range: 3.3V ±10%, -40°C to +85°C
- 6-Pin TDFN-EP Package (3mm x 3mm)
The DS28E36 is a DeepCover® secure authenticator that provides a core set of cryptographic tools derived from integrated asymmetric (ECC-P256) and symmetric (SHA-256) security functions. In addition to the security services provided by the hardware implemented crypto engines, the device integrates a FIPS/NIST true random number generator (RNG), 8Kb of secured EEPROM, a decrement-only counter, two pins of configurable GPIO, and a unique 64-bit ROM identification number (ROM ID). This unique ROM ID is used as a fundamental input parameter for cryptographic operations and also serves as an electronic serial number within the application. The DS28E36 communicates over the single-contact 1-Wire® bus at overdrive speed. The communication follows the 1-Wire protocol with the ROM ID acting as node address in the case of a multidevice 1-Wire network.
The ECC public/private key capabilities operate from the NIST defined P-256 curve and include FIPS 186 compliant ECDSA signature generation and verification to support a bidirectional asymmetric key authentication model. The SHA-256 secret-key capabilities are compliant with FIPS 180 and are flexibly used either in conjunction with ECDSA operations or independently for multiple HMAC functions.
Two GPIO pins can be independently operated under command control and include configurability supporting authenticated and nonauthenticated operation including an ECDSA-based crypto-robust mode to support secure-boot of a host processor.
DeepCover embedded security solutions cloak sensitive data under multiple layers of advanced security to provide the most secure key storage possible. To protect against device-level security attacks, invasive and noninvasive countermeasures are implemented including active die shield, encrypted storage of keys, and algorithmic methods.
Applications
- Accessory and Peripheral Secure Authentication
- IoT Node Crypto-Protection
- Secure Boot or Download of Firmware and/or System Parameters
- Secure Storage of Cryptographic Keys for a Host Controller
Documentation
Data Sheet 1
Reliability Data 1
User Guide 1
Design Note 1
Technical Articles 10
Product Highlight 1
Video 3
Product Highlight 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| DS28E36BQ+T | Thin Dual Flatpack No Leads, Exposed Pad | ||
| DS28E36BQ+U | Thin Dual Flatpack No Leads, Exposed Pad | ||
| DS28E36Q+T | Thin Dual Flatpack No Leads, Exposed Pad | ||
| DS28E36Q+U | Thin Dual Flatpack No Leads, Exposed Pad |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Secure Authenticators 1 | ||
| DS2476 | PRODUCTION | DeepCover Secure Coprocessor |
Tools & Simulations
Software Development 2
DeepCover® Security Lab
Open Tool
Evaluation Kits
Evaluation Kit for the DS28E36 and DS2476
Resources
USB-to-1-Wire/I2C Adapter
Reference Designs
Arm Cortex-M4 I/O Implemented 1-Wire Secure Authenticator Demo and Real Time Measurements