# OpenSSLError.invalidInput(_:) Thrown when raw input bytes do not satisfy a size or format constraint. ``` case invalidInput(String) ``` ## Discussion Produced by [`init(rawValue:)`](/documentation/OpenSSL/SHA256/SHA256Digest/init(rawValue:)) when the caller supplies a `Data` value whose length is not exactly 32 bytes. The associated `String` explains the constraint and the observed input. Typical remediation: fix the call site to supply bytes of the required length; never pad, truncate, or silently retry — the constraint exists because the downstream consumer cannot interpret a partial digest.