DeepCover® embedded security solutions cloak sensitive data under multiple layers of advanced physical security to provide the most secure key storage possible.
The DeepCover Secure Authenticator (DS28E35) provides a highly secure solution for a host controller to authenticate peripherals based on the industry standard (FIPS 186) public-key based Elliptic Curve Digital Signature Algorithm (ECDSA). The ECDSA engine computes keys and signatures using a pseudorandom curve over a prime field according to the “Standards for Efficient Cryptography (SEC)”. The private and public key can be computed by the device or installed by the user and optionally locked. Separate memory space is set aside to store and lock a public-key certificate as it is needed to verify authenticity. In addition to ECDSA-related memory, the device has 1024 bits of user memory that is organized as four pages of 256 bits. Page protection modes include write protection, read protection, and one-time-programmable (OTP) memory emulation modes. The DS28E35 also features a one-time settable, nonvolatile 17-bit decrement-on-command counter, which can be used to keep track of the lifetime of the object to which the DS28E35 is attached. Each device has its own guaranteed unique 64-bit ROM identification number (ROM ID) that is factory programmed into the chip. 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 DS28E35 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 multi-device 1-Wire network.
|Part Number||Crypto Engine||Applications||Memory Type||Memory Size||Bus Type||VSUPPLY|
|Deep Cover||Oper. Temp.|
|EEPROM||1K x 1||1-Wire||2.97 to 3.63||Yes||-40 to +85|
|See All Secure Authenticators (29)|
| Pricing Notes: |
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C|
|App Note||6391||Implementing Secure Authentication Without Being a Cryptography Expert|
|User Guide||6157||MAXREFDES44# MicroZed Quick Start Guide|
|App Note||6046||ECDSA-Based Authentication Redefines the Secure Sensor Card|
|App Note||5803||Secure Your FPGA System Using a DeepCover Secure Authenticator|
|Tutorial||5767||The Fundamentals of an ECDSA Authentication System|
|App Note||5758||Analog Integration Drives Factory Integration|
|App Note||5741||Using the DS28E35 Authenticator|
|Tutorial||5716||Hardware Security ICs Offer Large Security Returns at a Low Cost|
|App Note||4132||Attachment Methods for the Electro-Mechanical 1-Wire Contact Package|
|App Note||3989||Add Control, Memory, Security, and Mixed-Signal Functions with a Single Contact|