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AMD Publishes Cryptographic Coprocessor Linux Code

AMD

Published on 12 November 2013 12:57 PM EST
Written by Michael Larabel in AMD
10 Comments

AMD has just published a new set of Linux kernel patches, revealing Linux support for a Cryptographic Coprocessor (AMD CCP).

The AMD CCP (Cryptograph Coprocessor) provides hardware encryption and other related encrypted/hashing processes. The new CCP kernel driver implements support for the AES Crypto API, AES CMAC crypto, XTS-AES crypto, and SHA crypto interfaces at this time.

The set of ten patches by AMD's Tom Lendacky can be found on the kernel mailing list. The AMD CCP device driver and interface itself is quite large at coming in at nearly four thousand lines of code for this coprocessor. The Kconfig description reads, "Support for using the cryptographic API with the AMD Cryptographic Coprocessor. This module supports acceleration and offload of SHA and AES algorithms."

At the moment I can't find much more information on AMD's Cryptographic Coprocessor, but their APU13 Developer Summit event is taking place this week so it may be related to imminent announcements. The CCP driver depends on "x86" in the kernel configuration so it doesn't appear as being a co-processor for AMD's ARM endeavours.

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