static fun openDecryptionStream(key: Key!, header: ByteArray!): SecretDecryptionStream! (source)
Open an decryption stream.
key - Key!: The key to use for decryption.
header - ByteArray!: The header for the stream.
UnsupportedOperationException - If XChaCha20Poly1305 secret stream support is not available.
Return
SecretDecryptionStream!: The input stream.