file/magic/Magdir/mcrypt

#------------------------------------------------------------------------------
# $File: mcrypt,v 1.6 2022/02/08 18:51:45 christos Exp $
# Mavroyanopoulos Nikos <nmav@hellug.gr>
# mcrypt:   file(1) magic for mcrypt 2.2.x;
# URL: 		https://en.wikipedia.org/wiki/Mcrypt
#		http://fileformats.archiveteam.org/wiki/MCrypt
# Reference:	http://mark0.net/download/triddefs_xml.7z/defs/n/nc-mcrypt.trid.xml
# Update:	Joerg Jenderek
# Note:		called by TrID "mcrypt encrypted (v2.5)"
0	string		\0m\3		mcrypt 2.5 encrypted data,
#!:mime	application/octet-stream
!:mime	application/x-crypt-nc
!:ext	nc
>4	string		>\0		algorithm: %s,
>>&1	leshort		>0		keysize: %d bytes,
>>>&0	string		>\0		mode: %s,

# Reference:	http://mark0.net/download/triddefs_xml.7z/defs/n/nc-mcrypt-22.trid.xml
# Note:		called by TrID "mcrypt encrypted (v2.2)"
0	string		\0m\2		mcrypt 2.2 encrypted data,
#!:mime	application/octet-stream
!:mime	application/x-crypt-nc
# no example
!:ext	nc
>3	byte		0		algorithm: blowfish-448,
>3	byte		1		algorithm: DES,
>3	byte		2		algorithm: 3DES,
>3	byte		3		algorithm: 3-WAY,
>3	byte		4		algorithm: GOST,
>3	byte		6		algorithm: SAFER-SK64,
>3	byte		7		algorithm: SAFER-SK128,
>3	byte		8		algorithm: CAST-128,
>3	byte		9		algorithm: xTEA,
>3	byte		10		algorithm: TWOFISH-128,
>3	byte		11		algorithm: RC2,
>3	byte		12		algorithm: TWOFISH-192,
>3	byte		13		algorithm: TWOFISH-256,
>3	byte		14		algorithm: blowfish-128,
>3	byte		15		algorithm: blowfish-192,
>3	byte		16		algorithm: blowfish-256,
>3	byte		100		algorithm: RC6,
>3	byte		101		algorithm: IDEA,
>4	byte		0		mode: CBC,
>4	byte		1		mode: ECB,
>4	byte		2		mode: CFB,
>4	byte		3		mode: OFB,
>4	byte		4		mode: nOFB,
>5	byte		0		keymode: 8bit
>5	byte		1		keymode: 4bit
>5	byte		2		keymode: SHA-1 hash
>5	byte		3		keymode: MD5 hash