Jitter RNG Improvements, Arm CryptoCell CCTRNG Driver, AMD PSP SEV-ES For Linux 5.8
The crypto updates for this summer 2020 kernel update include:
- The Jitter RNG has beem updated for SP800-90B compliance. This comes after a half-year of testing the SP800-90B support in user-space. SP800-90B is the NIST specification over entropy sources for random bit generation.
- The DRBG (Deterministic Random Bit Generator) is also now always using the jitter RNG as a seed.
- The Crypto API now has support for parallel and batch requests within crypto_engine. This supports hardware capable of batch requests while retaining backwards compatibility.
- A new "CCTRNG" driver providing support for the Arm CryptoCell hardware security engine. The Arm CryptoCell true random number generator (TRNG) is now exposed with this driver.
- AMD Secure Encrypted Virtualization Encrypted State (SEV-ES) is now supported with the PSP driver in the AMD CCP (Cryptographic Co-Processor).
The full list of crypto changes for Linux 5.8 via the pull that has since landed in the mainline Git tree.
3 Comments
