Documentation ¶
Overview ¶
Package crypto provides an interface to VM cryptographic instructions and syscalls.
Index ¶
- func Hash160(b []byte) []byte
- func Hash256(b []byte) []byte
- func SHA1(b []byte) []byte
- func SHA256(b []byte) []byte
- func Secp256k1Recover(r []byte, s []byte, messageHash []byte, isEven bool) []byte
- func Secp256r1Recover(r []byte, s []byte, messageHash []byte, isEven bool) []byte
- func VerifySignature(msg []byte, sig []byte, pub []byte) bool
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func Hash160 ¶
Hash160 computes SHA256 + RIPEMD-160 of b, which is commonly used for script hashing and address generation. It uses `HASH160` VM instruction.
func Hash256 ¶
Hash256 computes double SHA256 hash of b (SHA256(SHA256(b))) which is used as ID for transactions, blocks and assets. It uses `HASH256` VM instruction.
func Secp256k1Recover ¶ added in v0.76.0
Secp256k1Recover recovers public key from the given signature (r, s) on the given message hash using Secp256k1 elliptic curve. Flag isEven denotes Y's least significant bit in decompression algorithm. The return value is byte array representation of the public key which is either empty (if it's not possible to recover key) or contains 64 bytes with X and Y coordinates (both 32-byte in BE format). This function uses Neo.Cryptography.Secp256k1Recover syscall.
func Secp256r1Recover ¶ added in v0.76.0
Secp256r1Recover recovers public key from the given signature (r, s) on the given message hash using Secp256r1 elliptic curve. Flag isEven denotes Y's least significant bit in decompression algorithm. The return value is byte array representation of the public key which is either empty (if it's not possible to recover key) or contains 64 bytes with X and Y coordinates (both 32-byte in BE format). This function uses Neo.Cryptography.Secp256r1Recover syscall.
Types ¶
This section is empty.