What's new with the Cortex-A55 core cryptographic extension?
I'm keen to learn more about the recent developments surrounding the Cortex-A55 CORE cryptographic extension. Could you elaborate on the key enhancements it brings to the cryptographic capabilities of the processor? Are there any specific algorithms or functionalities that have been optimized? How does this extension impact the overall security and performance of Cortex-A55-based devices? I'm also interested in knowing if there are any new use cases or applications that this extension enables. Additionally, what are the key challenges or limitations that still remain in this domain?