Kernel Crypto API Symmetric Crypto Helper

Kernel Crypto API interface library version: libkcapi 1.5.1
Reported numeric version number 1050100

Usage:
	-c --cipher <NAME>	Cipher name to use for crypto operation
	-e --encrypt		Encryption operation (default)
	-d --decrypt		Decryption operation
	-i --infile <FILE>	File with input data
	-o --outfile <FILE>	File with output data
	   --iv <IV>		IV for cipher operation
	   --aad <AAD>		AAD for AEAD cipher operation
	   --tag <TAG>		Tag for AEAD decryption operation
	   --taglen <BYTES>	Tag length to be generated AEAD encryption
	   --ccm-nonce <NONCE>	CCM nonce (instead of IV)
				operation
	   --key-len <LENGTH>	Length of key passed to cipher (default: 32)
	-s --salt <SALT>	Salt for PBKDF2
	-p --passwd <PWD>	Password the session key is derived from using
				PBKDF2
	   --passwdfd <FD>	Password file descriptor providing password
	   --pbkdfiter <NUM>	Number of PBKDF2 iterations
	   --pbkdfmac <MAC>	Mac for PBKDF2 (default: hmac(sha256))
	   --keyfd <FD>		Key file descriptor providing password
	   --nounpad		Do not unpad output file
	-h --help		This help information
	   --version		Print version
	-v --verbose		Verbose logging, multiple options increase
				verbosity
	-q --quiet		No informational output - quiet operation

Data provided at stdin is encrypted or decrypted
Data output at stdout