RISC-V ISA Explorer · Cryptography (Zk*)

Zknh: NIST Hash

Ratified 2022-02 · version 1.0.1

Accelerates the round and message-schedule functions of SHA-256 and SHA-512 from the SHA-2 family.

Typical use: SHA-2 hash instructions

Open Zknh in the explorer

Dependencies

Required by

Zkn

Instructions (14)

Mnemonic	Name	Encoding	Match	Mask
`SHA256SIG0`		`000100000010-----001-----0010011`	`0x10201013`	`0xfff0707f`
`SHA256SIG1`		`000100000011-----001-----0010011`	`0x10301013`	`0xfff0707f`
`SHA256SUM0`		`000100000000-----001-----0010011`	`0x10001013`	`0xfff0707f`
`SHA256SUM1`		`000100000001-----001-----0010011`	`0x10101013`	`0xfff0707f`
`SHA512SIG0`		`000100000110-----001-----0010011`	`0x10601013`	`0xfff0707f`
`SHA512SIG0H`		`0101110----------000-----0110011`	`0x5c000033`	`0xfe00707f`
`SHA512SIG0L`		`0101010----------000-----0110011`	`0x54000033`	`0xfe00707f`
`SHA512SIG1`		`000100000111-----001-----0010011`	`0x10701013`	`0xfff0707f`
`SHA512SIG1H`		`0101111----------000-----0110011`	`0x5e000033`	`0xfe00707f`
`SHA512SIG1L`		`0101011----------000-----0110011`	`0x56000033`	`0xfe00707f`
`SHA512SUM0`		`000100000100-----001-----0010011`	`0x10401013`	`0xfff0707f`
`SHA512SUM0R`		`0101000----------000-----0110011`	`0x50000033`	`0xfe00707f`
`SHA512SUM1`		`000100000101-----001-----0010011`	`0x10501013`	`0xfff0707f`
`SHA512SUM1R`		`0101001----------000-----0110011`	`0x52000033`	`0xfe00707f`