Security
Root of Trust RT-260
Designed to be integrated in secure MCUs (microcontrollers), the RT-260 Root of Trust (formerly VaultIP) is a FIPS 140-2 compliant hardware core that guards the most sensitive assets on chips and establishes the foundation for platform security.
Featuring a state-machine architecture with dedicated secure memories, the RT-260 hardware Root of Trust provides a variety of DPA(Differential Power Analysis) and standard cryptographic accelerators including AES, SHA-2, RSA, ECC, 3DES, and HMAC. Ideal as a secure services and key manager for MCU (microcontroller) devices, the RT-260 Root of Trust offers the best balance of size and performance available on the market.
The RT-260 offers a series of key security use cases ‘out of the box’, including:
- Secure Boot assist to host CPU(s) and protection of key material
- Manages secure Firmware upgrade for Host CPU
- Life-cycle management support
- Secure Debug
- Secure device authentication and identity protection
The RT-260 provides a secure asset store:
- Only the RT-260 can manage, use and access the assets
- The O/S and applications cannot access key values
- Applications request asset use by reference through authorization
- Enforces policies for access and use of keys and cryptographic functions
- Key generation, derivation, storage and transport
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Product Brief
Security in the ARM Ecosystem
Building security in an SoC aiming to meet the goals set by the ARM Platform Security Architecture (PSA) is a complex matter. This is compounded by the complexity of modern-day SoCs comprising multiple processors, security domains and security levels. The Rambus root of trust provides a solid foundation for the SoC security architecture ticking ‘all the boxes’ for reaching the security goals, while offering extensive support for effective integration into a complex TrustZone-based SoC infrastructure.How the Root of Trust Works
The RT-260 Root of Trust is a silicon IP core developed to protect an SoC platform and its operation. It allows the SoC to boot securely and protects sensitive key material and assets. At its heart, its Secure Asset Store secretly generates keys and securely stores them. Fully featured, its cryptographic data plane associated to its DMA offloads the main CPU while never exposing secret data to the OS or the applications. It is designed to provide secure, energy efficient and accelerated security functions.
Readily deployable, the RT-260 Root of Trust is offered in off-the-shelf configurations, allowing a choice tailored to the needs of your application. Configurations differ by cryptographic accelerators contained and 3rd-party certification and standard compliance.
The RT-260 is part of the broad Rambus Root of Trust portfolio, which ranges from small, lightweight cores designed to protect IoT endpoints all the way to fully programmable Root of Trust cores designed to protect the most sensitive government/defense chips and automotive deployments requiring ISO-26262 certifications.
The Road to Post Quantum Cryptography
Quantum computing offers the promise of tremendous leaps in processing power over current digital computers. But for the public-key cryptography algorithms used today for e-commerce, mobile payments, media streaming, digital signatures and more, quantum computing represents an existential event. Quantum computers may be able to break the widely used RSA and ECC (Elliptic-Curve Cryptography) algorithms in as little as days. Learn about our solutions and recommendations to ready customers for a post-quantum world.
Solution Offerings
| Feature | Description | RT-260 |
| FIPS 140 CAVP | FIPS 140-2 CAVP & FIPS 140-3 CAVP (2020) | Standard |
| FIPS 140 CMVP | FIPS 140-2 CMVP & FIPS 140-3 CMVP (2020) | Standard |
| OTP Management | Interface | Standard |
| AES HW | ECB, CBC, CTR Modes – Max Key Size (bits) | 256 |
| AES Modes | AES-CCM, AES-CMAC, AES-GCM/GMAC (standard) AES-XTS (optional) | |
| DPA Resistance | Simple and differential power analysis resistant cores | RSA, ECC, AES, 3DES, HMAC |
| HMAC-SHA2 HW | SHA-2 and HMAC-SHA2 – Max SHA-2 Mode (bits) | 512 |
| Public Key Engine | RSA, ECC Acceleration Core | 32×32 |
| ECC HW | Max Curve Size (bits) | 521 |
| RSA HW | Max Exponent Size (bits) | 3096 |
| Random Number Generator HW | NIST SP800 compliant TRNG | Standard |
| I/O Performance | Throughput (Gbps) | 2 |
| Crypto Performance | Crypto/Hash Performance (Gbps) @500MHz | 2 |
| DMA | Standard (STD) or Multi-channel (MC) | STD or MC |
| I/O Bus | AMBA Bus Master/Slave | AXI/AHB |
| OTP Interface | Interface to 3rd-Party OTP | TCM |
| Multiple Roots of Trust | Roots/Key Splits | 1 |
- Cloud connected devices
- IoT (Internet of Things) devices
- Industrial IoT
- Sensors
- Gateways
Full Disk Encryption of Solid State Drives and Root of Trust
File encryption, file system encryption and full disk encryption (FDE) are methods offered by the industry to allow users to protect their data stored on non-volatile storage devices, such as Solid State Disks (SSD). The main feature of FDE is to protect stored system and user date from unauthorized reading, writing, alteration, moving or rolling back. However, extended security features are key to securing FDE implementation.