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2023-06-19Zvk: Implement Zvksed, vector SM4 Block CipherEric Gouriou1-0/+60
Implement the Zvksed sub-extension, "ShangMi Suite: SM4 Block Cipher": - vsm4k.vi, vector SM4 key expansion, - vsm4r.{vs,vv}, vector SM4 rounds. This also introduces a header for common vector SM4 logic. Co-authored-by: Raghav Gupta <rgupta@rivosinc.com> Co-authored-by: Albert Jakieła <aja@semihalf.com> Signed-off-by: Eric Gouriou <ego@rivosinc.com>