Class: IsccLib::InstanceHasher

Inherits:

Object

• Object
• IsccLib::InstanceHasher

Defined in:

lib/iscc_lib.rb

Overview

Streaming Instance-Code generator (reopens native class).

Incrementally hashes data with BLAKE3 to produce results identical to gen_instance_code_v0.

Examples:

hasher = IsccLib::InstanceHasher.new
hasher.update(chunk1).update(chunk2)
result = hasher.finalize(bits: 64)

Instance Method Summary

• #finalize(bits: 64) ⇒ InstanceCodeResult

  Consume the hasher and produce an Instance-Code result.

• #update(data) ⇒ self

  Push binary data into the hasher.

Instance Method Details

#finalize(bits: 64) ⇒ InstanceCodeResult

Consume the hasher and produce an Instance-Code result.

Parameters:

• bits (Integer) (defaults to: 64) —

  bit length (default: 64)

Returns:

• (InstanceCodeResult) —

  hash with iscc, datahash, filesize

Raises:

• (RuntimeError) —

  if called more than once

# File 'lib/iscc_lib.rb', line 231

def finalize(bits: 64)
  InstanceCodeResult[_finalize(bits)]
end

#update(data) ⇒ self

Push binary data into the hasher.

Parameters:

• data (String) —

  binary data

Returns:

• (self) —

  for method chaining

# File 'lib/iscc_lib.rb', line 221

def update(data)
  _update(data)
  self
end