With our recent 5.6.4 release of wolfSSL/wolfCrypt, AES-XTS gains a newly optimized implementation for modern x86-64 CPUs. AES-XTS, standardized in IEEE P1619-2007 and NIST SP800-38E, and typically used for encrypting storage.
By leveraging AES-NI and AVX vectorized instructions, sustained throughput now exceeds 1.5 bytes per cycle for 256 bit keys, and 1.12 bytes per cycle for 512 bit keys, in both encrypt and decrypt modes.
The new wolfCrypt optimizations are fully kernel-compatible, enabling in-kernel disk encryption at state-of-the-art speeds and can exceed 5 GiB/s. Performance compares favorably with the Linux kernel’s optimized implementation, which attains 0.87 and 0.72 bytes per cycle with 256 and 512 bit keys respectively.
If you have questions about any of the above, please contact us at facts@wolfSSL.com or call us at +1 425 245 8247
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