Overview
Features and Benefits
- Robust Countermeasures Protect Against Security Attacks
- Patented Physically Unclonable Function Secures Device Data
- Actively Monitored Die Shield Detects and Reacts to Intrusion Attempts
- All Stored Data Cryptographically Protected from Discovery
- Efficient Secure Hash Algorithm Authenticates Peripherals
- FIPS 202-Compliant SHA-3 Algorithm for Challenge/Response Authentication
- FIPS 198-Compliant Keyed-Hash Message Authentication Code (HMAC)
- TRNG with NIST SP 800-90B Compliant Entropy Source
- Supplemental Features Enable Easy Integration into End Applications
- 17-Bit One-Time Settable, Nonvolatile Decrement-Only Counter with Authenticated Read
- One GPIO Pin with Optional Authentication Control
- 2Kb of EEPROM for User Data, Key, and Control Registers
- Unique and Unalterable Factory Programmed 64-Bit Identification Number (ROM ID)
- 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) and 2-Pin SFN Package (3.5mm x 6.5mm)
Product Details
The DS28E50 secure authenticator combines FIPS 202-compliant secure hash algorithm (SHA-3) challenge and response authentication with Analog Devices' patented ChipDNA™ technology, a physically unclonable function (PUF) to provide a cost-effective solution with the ultimate protection against security attacks. The ChipDNA implementation utilizes the random variation of semiconductor device characteristics that naturally occur during wafer fabrication. The ChipDNA circuit generates a unique output value that is repeatable over time, temperature, and operating voltage. Attempts to probe or observe ChipDNA operation modifies the underlying circuit characteristics thus preventing discovery of the unique value used by the chip cryptographic functions. The DS28E50 utilizes the ChipDNA output as key content to cryptographically secure all device-stored data. With ChipDNA capability, the device provides a core set of cryptographic tools derived from integrated blocks including a SHA-3 engine, a FIPS/NIST -compliant true random number generator (TRNG), 2Kb of secured EEPROM, a decrement-only counter and a unique 64-bit ROM identification number (ROM ID). The unique ROM ID is used as a fundamental input parameter for cryptographic operations and serves as an electronic serial number within the application. The DS28E50 communicates over the single-contact 1-Wire® bus at both standard and overdrive speeds. The communication follows the 1-Wire protocol with the ROM ID acting as node address in the case of a multidevice 1-Wire network.
Applications
- Authentication of Medical Sensors and Tools
- IoT Node Authentication
- Peripheral Authentication
- Printer Cartridge Identi cation and Authentication
- Reference Design License Management
- Secure Management of Limited Use Consumables
Product Categories
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Documentation & Resources
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DS28E50 Reliability Data10/10/2022PDF147K
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Using 1-Wire for Flexible Electro-Mechanical Contact Applications3/1/2021
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How Secure Authenticators and Coprocessors Can Simplify Cryptography8/3/2020
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Cryptography: Planning for Threats and Countermeasures7/20/2020
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Cryptography: Is a Hardware or Software Implementation More Effective?7/8/2020
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Cryptography: Understanding the Benefits of the Physically Unclonable Function (PUF)6/15/2020
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Cryptography: Fundamentals of the Modern Approach5/29/2020
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Back to Basics: Secure Hash Algorithms6/13/2019
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Secure Authentication for Medical Disposables4/5/2019
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Easily Add Memory, Security, Monitoring, and Control to Medical Sensors and Consumables5/10/2010
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Overview of 1-Wire Technology and Its Use6/19/2008
Tools & Simulations
Design Tools
Software Development
Reference Designs (1)
Design Resources
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 Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
---|---|---|---|---|
DS28E50Q+T | Material Declaration | Reliability Data | Thin Dual Flatpack No Leads, Exposed Pad | |
DS28E50Q+U | Material Declaration | Reliability Data | Thin Dual Flatpack No Leads, Exposed Pad | |
Wafer Fabrication Data | DS28E50 Reliability Data |
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Evaluation Boards
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.