RISC-V ISA Explorer · Cryptography (Zk*)

Zk: Scalar Crypto Base

Ratified 2022-02 · version 1.0.1

Shorthand bundle for the NIST scalar crypto suite, the entropy source CSR, and timing-safety guarantees.

Typical use: Selecting the standard scalar crypto bundle

Specification

Open Zk in the explorer

Dependencies

Requires

Members

Instructions (51)

Mnemonic	Name	Encoding	Match	Mask
`AES32DSI`	AES final round decryption instruction for RV32	`--10101----------000-----0110011`	`0x2a000033`	`0x3e00707f`
`AES32DSMI`	AES middle round decryption instruction for RV32	`--10111----------000-----0110011`	`0x2e000033`	`0x3e00707f`
`AES32ESI`		`--10001----------000-----0110011`	`0x22000033`	`0x3e00707f`
`AES32ESMI`		`--10011----------000-----0110011`	`0x26000033`	`0x3e00707f`
`AES64DS`	AES decrypt final round	`0011101----------000-----0110011`	`0x3a000033`	`0xfe00707f`
`AES64DSM`	AES decrypt middle round	`0011111----------000-----0110011`	`0x3e000033`	`0xfe00707f`
`AES64ES`	AES encrypt final round	`0011001----------000-----0110011`	`0x32000033`	`0xfe00707f`
`AES64ESM`	AES encrypt middle round	`0011011----------000-----0110011`	`0x36000033`	`0xfe00707f`
`AES64IM`	AES Decrypt KeySchedule MixColumns	`001100000000-----001-----0010011`	`0x30001013`	`0xfff0707f`
`AES64KS1I`	AES Key Schedule Instruction 1	`00110001---------001-----0010011`	`0x31001013`	`0xff00707f`
`AES64KS2`	AES Key Schedule Instruction 2	`0111111----------000-----0110011`	`0x7e000033`	`0xfe00707f`
`ANDN`	AND with inverted operand	`0100000----------111-----0110011`	`0x40007033`	`0xfe00707f`
`BREV8`	Reverse bits in bytes	`011010000111-----101-----0010011`	`0x68705013`	`0xfff0707f`
`CLMUL`	Carry-less multiply (low-part)	`0000101----------001-----0110011`	`0xa001033`	`0xfe00707f`
`CLMULH`	Carry-less multiply (high-part)	`0000101----------011-----0110011`	`0xa003033`	`0xfe00707f`
`CSRRAND`		`00000001010100000010-----1110011`	`0x1502073`	`0xfffff07f`
`CSRRAND64`		`00000001010100000010-----1110011`	`0x1502073`	`0xfffff07f`
`ORN`	OR with inverted operand	`0100000----------110-----0110011`	`0x40006033`	`0xfe00707f`
`PACK`		`0000100----------100-----0110011`	`0x8004033`	`0xfe00707f`
`PACKH`		`0000100----------111-----0110011`	`0x8007033`	`0xfe00707f`
`PACKW`		`0000100----------100-----0111011`	`0x800403b`	`0xfe00707f`
`REV8.RV32`		`011010011000-----101-----0010011`	`0x69805013`	`0xfff0707f`
`ROL`	Rotate left (Register)	`0110000----------001-----0110011`	`0x60001033`	`0xfe00707f`
`ROLW`	Rotate left word (Register)	`0110000----------001-----0111011`	`0x6000103b`	`0xfe00707f`
`ROR`	Rotate right (Register)	`0110000----------101-----0110011`	`0x60005033`	`0xfe00707f`
`RORI`	Rotate right (Immediate)	`011000-----------101-----0010011`	`0x60005013`	`0xfc00707f`
`RORIW`	Rotate right word (Immediate)	`0110000----------101-----0011011`	`0x6000501b`	`0xfe00707f`
`RORW`	Rotate right word (Register)	`0110000----------101-----0111011`	`0x6000503b`	`0xfe00707f`
`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`
`SM3P0`		`000100001000-----001-----0010011`	`0x10801013`	`0xfff0707f`
`SM3P1`		`000100001001-----001-----0010011`	`0x10901013`	`0xfff0707f`
`SM4ED`		`--11000----------000-----0110011`	`0x30000033`	`0x3e00707f`
`SM4KS`		`--11010----------000-----0110011`	`0x34000033`	`0x3e00707f`
`UNZIP`	Bit deinterleave	`000010001111-----101-----0010011`	`0x08f05013`	`0xfff0707f`
`XNOR`	Exclusive NOR	`0100000----------100-----0110011`	`0x40004033`	`0xfe00707f`
`XPERM4`	Crossbar permutation (nibbles)	`0010100----------010-----0110011`	`0x28002033`	`0xfe00707f`
`XPERM8`	Crossbar permutation (bytes)	`0010100----------100-----0110011`	`0x28004033`	`0xfe00707f`
`ZIP`	Bit interleave	`000010001111-----001-----0010011`	`0x08f01013`	`0xfff0707f`