Scalable AES-XTS
Scalable and high speed AES-XTS for disk encryption
Overview
AES-XTS is an encryption algorithm designed to provide both authentication and privacy. XTS is based on the ECB Mode with XOR-ing before and after encryption with “tweak” value. This tweak value is generated based on a Galois field multiplication.
XTS allows pipelining and parallel processing which enables very high data rates.
The BA416 engine is a scalable solution, which provides a full range of solutions from 15 K-Gates (including key, IV, input and output registers and Galois field multiplier) to > 100 Gbits/s. The engine is easily reconfigurable through a generic function. With several options of data interfaces (FIFO, AMBA …), the BA416 is an easy-to-use solution with predictable resources and performances on ASIC and FPGA.
The BA416 is silicon-proven and optimized for any target technology (ASIC, Altera, Microsemi, Xilinx)
Features
- Off-the-shelf, predictable and silicon-proven solution
- Portability: ASIC, Altera, Microsemi and Xilinx
- Compliant with NIST SP800-38E
- Logic footprint optimized to performance requirements and used functionalities
- Scalable Multi-Core solution enabling best trade-off between area and performances
- Compact solution
- > 100 GBits/s
- Supports 128-bit and 256-bit key with integrated Key Expansion
- XTS 256 (2 keys of 128 bits)
- XTS 512 (2 keys of 256 bits)
- Can be combined with CCM, XTS and other modes (CBC, OFC, CTR…)
- Control interface:
- APB
- AXI4-Lite
- Data interface:
- FIFO-like interface
- AMBA (AHB, AXI, AXI-4 stream) with optional DMA
- Cipher Stealing (optional)
- User-friendly Software API
- Masking option available for applications requiring higher level of security – protection against SPA and DPA (Simple/Differential Power Analysis)
- Self-checking Test-Bench based on FIPS vectors
- Low Power feature
Applications
- Disk/Data storage
- SATA III application (up to 6 GBits/s)