AES-XTS, Advanced Encryption Standard (256-bit key), XTS mode IP Core

Overview

XIP1183H from Xiphera is a high-speed Intellectual Property (IP) core implementing the Advanced Encryption Standard (AES) with 256 bits long key in XTS mode.

AES-XTS is block-oriented cipher used primarily for protecting the confidentiality of data at rest. Consequently, AES-XTS is widely used for encrypting the contents of hard drives and other storage devices.

AES-XTS is a tweakable block cipher, and as it instantiates the underlying AES block cipher twice, the key material for AES-XTS is twice longer than for the constituent individual AES block ciphers.

The encrypted data depends not only on the plaintext and encryption key, but also on the logical address of the data on the storage device. This means that identical plaintexts get encrypted differently at different logical addresses.

XIP1183H has been designed for easy integration with FPGA- and ASIC-based designs in a vendor-agnostic design methodology, and the functionality of XIP1183B does not rely on any FPGA manufacturer-specific features.

XIP1183H has also been successfully validated in the CAVP (Cryptographic Algorithm Validation Program) by NIST (National Institute for Standards and Technology).

Key Features

Moderate resource requirements: The entire XIP1183H requires 28456 Adaptive Lookup Modules (ALMs) (Intel Agilex F), and does not require any multipliers or DSPBlocks. Contact sales@xiphera.com for ASIC resource requirements.
Performance: XIP1183H achieves an impressive throughput in the tens of Gbps range, for example 43.48+ Gbps in Xilinx Versal Prime.
Standard Compliance: XIP1183H is compliant with both the Advanced Encryption Algorithm (AES) standard, and the XTS standard.
Optional Ciphertext stealing support as defined in IEEE Std 1619-2018.
Increased Performance can be achieved by parallel instantiations of XIP1183H.
Support for Burst-Mode Sector Writes and Reads with the default sector size of 4kB.

Benefits

Fully digital design
Portable to any ASIC or FPGA technology
Fully standard compliant
Easy to integrate
Several bus interfaces available
IP core designed in-house at Xiphera
Technical support by the original designers and cryptographic experts
CAVP validated

Block Diagram

Applications

XIP1183H protects the confidentiality of the encrypted plaintext, and identical plaintext is encrypted into a different ciphertext at different memory addresses.
When using XIP1183H with storage media whose natural bit width is smaller than 128bits, it is recommended to integrate XIP1183B with a memory controller IP core to enable encrypting and decrypting 128-bits data units.

Deliverables

Please contact sales@xiphera.com for pricing and your preferred delivery method. XIP1183H can be shipped in a number of formats, including netlist, source code, or encrypted source code.
Additionally, synthesis scripts, a comprehensive testbench, and a detailed datasheet including an integration guide are included.

Technical Specifications

Foundry, Node

Any

Maturity

Hardware tested

Availability

Immediate

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