(NASDAQ: MXIM) today announced that it is now sampling the DS28E35 DeepCover® Secure Authenticator, a highly secure cryptographic solution for a host controller to authenticate peripherals. The DS28E35 integrates a FIPS 186-based, Elliptic Curve Digital Signature Algorithm (ECDSA) engine to implement asymmetric (public-key) cryptography to operate a challenge-and-response authentication protocol between a host controller and attached peripherals, sensors, or modules. Operating over a single pin on the 1-Wire® interface, the
DS28E35 reduces interconnect complexity, simplifies designs, and reduces cost.
It provides crypto-strong authentication security for many applications, including medical sensors, industrial programmable logic controller (PLC) modules, and consumer devices.
The use of ECDSA public-key cryptography saves cost and reduces key management complexity by eliminating the need for the host controller to store and protect the authentication key, which is required for comparable symmetric (secret-key) solutions. The DS28E35 operates with a key pair: a public key that resides with the host and an associated private key stored in the DS28E35. As a primary benefit of ECDSA, there is no security requirement to protect the host public key. It is imperative, however, to protect the private key stored in the DS28E35. This is accomplished through Maxim's DeepCover security technologies, which provide the strongest affordable protection against die-level attacks that attempt to discover the private key. DeepCover technologies include advanced die routing and layout techniques, additional proprietary methods for private key protection, and circuits that actively monitor for tampering.
-- ECDSA asymmetric, public-key cryptography saves cost: eliminates the
need for additional secure authentication key storage ICs in the host
-- High integration reduces costs, simplifies designs: ECDSA engine with a
1-Wire interface; nonvolatile (NV) memory; hardware random number
generator for signatures and key-pair generation; decrement-only usage
counter; and DeepCover invasive-attack protection circuitry.
-- Reduces interconnect complexity: 1-Wire interface allows operation from
a single dedicated contact which, in turn, improves reliability and
-- Easily adapts to a host-peripheral system where secure authentication is
-- "Customers are increasingly looking for the advantages offered by
asymmetric public-key crypto for their secure authentication needs,"
said Scott Jones, Executive Director at Maxim Integrated. "We've
combined our extensive embedded security expertise with the integration
of key features to provide a solution that is both cryptographically and
physically secure and easy to add to an end application."
-- "The weakest point of a symmetric-key based host-peripheral secure
authentication system is typically the host component where secret keys
are often not protected sufficiently," said Christopher Tarnovsky, Vice
President of Semiconductor Security Services at IOActive. "The use of a
public-key authentication solution eliminates this security risk."
Availability and Pricing
-- Available in a 6-pin TSOC package and a 2mm x 3mm 8-pin TDFN-EP package.
-- Specified over the -40°C to +85°C temperature range.
-- Pricing starts at $1.08 (1000-up, FOB USA).
Download a hi-res image of the DS28E35 secure authenticator.
1-Wire and DeepCover are registered trademarks of Maxim Integrated Products, Inc.
About Maxim Integrated
At Maxim Integrated, we put analog together in a way that sets our customers apart. In Fiscal 2012, we reported revenues of $2.4 billion.