Struct SingleBlockMessage 

pub struct SingleBlockMessage {
    pub message: Align64<[u32; 16]>,
    pub prefix_state: [u32; 8],
    pub digit_index: usize,
    pub nonce_addend: u64,
    pub approx_working_set_count: NonZeroU32,
    pub no_trailing_zeros: bool,
}

Solves an mCaptcha/Anubis/Cap.js SHA256 PoW where the SHA-256 message is a single block (512 bytes minus padding).

Construct: Proof := (prefix || ASCII_DECIMAL(nonce))

Currently the mutating part is always 9 digits long.

Fields

message: Align64<[u32; 16]>

the message template for the final block, pre-padded except for the mutating part

prefix_state: [u32; 8]

the SHA-256 midstate for the previous block

digit_index: usize

the index of the mutating part of the digits in the message

nonce_addend: u64

the nonce addend

approx_working_set_count: NonZeroU32

the approximate working set count

no_trailing_zeros: bool

whether no trailing zeros are allowed

Implementations

impl SingleBlockMessage

pub fn new(prefix: &[u8], working_set: u32) -> Option<Self>

creates a new single block message

pub fn new_f64( prefix: &[u8], working_set: u32, ) -> Option<(Self, Option<IEEE754LosslessFixupPrefix>)>

Create a new single block message using only IEEE 754 double precision floats that can stringify losslessly

The caller is expected to append the bytes from the prefix to the nonce before sending it to the server.

Trait Implementations

impl Clone for SingleBlockMessage

fn clone(&self) -> SingleBlockMessage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SingleBlockMessage

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

Formats the value using the given formatter.

impl From<SingleBlockMessage> for SingleBlockSolver

fn from(message: SingleBlockMessage) -> Self

Converts to this type from the input type.

impl From<SingleBlockMessage> for DecimalSolver

fn from(message: SingleBlockMessage) -> Self

Converts to this type from the input type.

impl From<SingleBlockMessage> for SingleBlockSolver

fn from(message: SingleBlockMessage) -> Self

Converts to this type from the input type.

impl From<SingleBlockMessage> for DecimalSolver

fn from(message: SingleBlockMessage) -> Self

Converts to this type from the input type.

impl From<SingleBlockMessage> for SingleBlockSolver

fn from(message: SingleBlockMessage) -> Self

Converts to this type from the input type.

impl From<SingleBlockMessage> for DecimalSolver

fn from(message: SingleBlockMessage) -> Self

Converts to this type from the input type.