The Protocol-IP-338 (EIP-338) is a scalable, high-performance, multi-stream cryptographic engine that offers XTS and GCM modes of operation for the AES algorithms on bulk data. Its flexible data path is suitable to scale from 50 Gbps to 2 Tbps providing a tailored engine with minimal area for your application.
The flexible interface makes it possible to perform processing for many different applications and protocols, including inline memory encryption, inline disk encryption, MACsec, IPsec and OTN security. The multi-stream architecture allows interleaved data processing for many independent data streams simultaneously. Switching between streams can be done every clock cycle without loss of performance. Data is processed without flow control and with fixed latency, dependent on the static configuration selected.
The Protocol-IP-338 data path can be scaled to widths that are multiples of 128 bit to allow a tradeoff between area and performance that best fits the target application. Configuration options include or exclude support for CipherText Stealing (CTS) and AES-GCM.
On-chip SRAM external to the Protocol-IP-338 is used to store the key database as well as various precomputes and state information for each of the streams the engine is processing in interleaved fashion.
The Protocol-IP-338 is a data-processing engine and contains input/output data interfaces and interfaces intended for supplying key material that is stored in the engine’s local SRAM.
Before cryptographic processing can start, the Host CPU transfers the key material, together with the AES mode to use, to one of the key slots in the engine. Key material can be shared between multiple streams and many blocks while the key remains available in local SRAM.
The external system is responsible for the following items:
Separate IP cores can be provided to assist with Tweak or Decrypt Key generation.
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.
Performance and Configuration
Low Latency with Zero Variation
Control Plane Interface
External Memory Interface