Struct tari_crypto::script::TariScript

pub struct TariScript { /* fields omitted */ }

Implementations

impl TariScript

pub fn new(script: Vec<Opcode>) -> Self

pub fn execute(&self, inputs: &ExecutionStack) -> Result<(), ScriptError>

pub fn as_bytes(&self) -> Vec<u8>

pub fn as_hash<D: Digest>(&self) -> Result<HashValue, ScriptError>

Calculate the hash of the script. as_hash returns [ScriptError::InvalidDigest] if the digest function does not produce at least 32 bytes of output.

pub fn from_bytes(bytes: &[u8]) -> Result<Self, ScriptError>

Try to deserialise a byte slice into a valid Tari script

pub fn to_opcodes(&self) -> Vec<String>

Convert the script into an array of opcode strings.

Example

use tari_crypto::script::TariScript;
use tari_utilities::hex::Hex;

let hex_script = "71b07aae2337ce44f9ebb6169c863ec168046cb35ab4ef7aa9ed4f5f1f669bb74b09e58170ac";
let script = TariScript::from_hex(hex_script).unwrap();
let ops = vec![
    "Dup",
    "HashBlake256",
    "PushHash(ae2337ce44f9ebb6169c863ec168046cb35ab4ef7aa9ed4f5f1f669bb74b09e5)",
    "EqualVerify",
    "Drop",
    "CheckSig",
]
.into_iter()
.map(String::from)
.collect::<Vec<String>>();
assert_eq!(script.to_opcodes(), ops);

pub fn script_message(
    &self,
    pub_key: &RistrettoPublicKey
) -> Result<RistrettoSecretKey, ScriptError>

Calculate the message hash that CHECKSIG uses to verify signatures

Trait Implementations

impl Clone for TariScript

fn clone(&self) -> TariScript

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TariScript

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TariScript

The default Tari script is to push a single zero onto the stack; which will execute successfully with zero inputs.

fn default() -> Self

Returns the "default value" for a type.

impl<'de> Deserialize<'de> for TariScript

fn deserialize<D>(de: D) -> Result<Self, D::Error> where
    D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Display for TariScript

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for TariScript

impl Hex for TariScript

fn from_hex(hex: &str) -> Result<Self, HexError> where
    Self: Sized, 

Try to convert the given hexadecimal string to the type. Any failures (incorrect string length, non hex characters, etc) return a KeyError with an explanatory note.

fn to_hex(&self) -> String

Return the hexadecimal string representation of the type

impl PartialEq<TariScript> for TariScript

fn eq(&self, other: &TariScript) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &TariScript) -> bool

This method tests for !=.

impl Serialize for TariScript

fn serialize<S>(&self, ser: S) -> Result<S::Ok, S::Error> where
    S: Serializer, 

Serialize this value into the given Serde serializer.

impl StructuralEq for TariScript

impl StructuralPartialEq for TariScript