Struct SumHasher 

pub struct SumHasher { /* private fields */ }

Streaming composite ISCC-CODE (Sum) generator.

Runs the Data-Code (CDC/MinHash) and Instance-Code (BLAKE3) algorithms in a single pass over the input by feeding the same bytes to an inner DataHasher and InstanceHasher, then composes the final ISCC-CODE. Produces output identical to gen_sum_code_v0 for the same byte stream.

Implementations

impl SumHasher

pub fn new() -> Self

Create a new SumHasher.

pub fn update(&mut self, data: &[u8])

Push data into both inner hashers in a single pass.

pub fn finalize( self, bits: u32, wide: bool, add_units: bool, ) -> IsccResult<SumCodeResult>

Consume the hasher and produce a composite ISCC-CODE result.

Finalizes the inner Data-Code and Instance-Code, then composes them via gen_iscc_code_v0. When add_units is true, the result includes the individual Data-Code and Instance-Code ISCC strings at the requested bits precision. Equivalent to calling gen_sum_code_v0 on a file containing the concatenation of all data passed to update.

Trait Implementations

impl Default for SumHasher

fn default() -> Self

Create a new SumHasher (delegates to new()).