core-utils/com.pambrose.common.util/withChecksum

withChecksum

fun ByteArray.withChecksum(): ByteArray

Prepends a SHA-256 checksum of this data, for detecting accidental corruption.

The checksum is unkeyed, so it is not tamper-proof: anyone who can modify the data can recompute it. Use a keyed MAC such as HMAC-SHA256 when the data must be authenticated.

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common-utils