kitearchive/io.github.yuroyami.kitearchive.checksum/Checksum

Checksum

A streaming, unkeyed integrity check (CRC / Adler family). All implementations are pure-Kotlin and table-driven. They are cheap (GB/s), export-safe, and need no constant-time care, so the core module can hold them. AES is different: this design delegates it to a platform crypto provider.

value returns the result in the low bits of a Long (32-bit checksums fit in the low 32 bits; CRC-64 uses the full width).

Inheritors

Functions

reset

abstract fun reset()

Reset to the initial state so the instance can be reused.

update

abstract fun update(data: ByteArray, offset: Int = 0, length: Int = data.size)

Feed a slice of bytes into the running checksum.

value

abstract fun value(): Long

Current checksum value (low bits of the Long).