crypto_cipher_mode()

Syntax

crypto_cipher_mode( ciphername )

Returns

Returns the mode of the specified cipher as a string (e.g., "cbc", "ecb", "stream"), or an empty string if an invalid ciphername is specified.

Parameters

Parameter	Description
ciphername	an OpenSSL cipher identifier, such as "aes-128-cbc" or "rc2-ofb".