libmcrypt4

Package contains libraries, required by other applications as dependencies. Do not install separately.

De-/Encryption Library
libmcrypt is the library which implements all the algorithms and
modes found in mcrypt.
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libmcrypt supports the algorithms: BLOWFISH, TWOFISH, DES, TripleDES,
3-WAY, SAFER-sk64, SAFER-sk128, SAFER+, LOKI97, GOST, RC2, RC6, MARS,
IDEA, RIJNDAEL-128, RIJNDAEL-192, SERPENT, RIJNDAEL-256, CAST-128
(known as CAST5), CAST-256, ARCFOUR, ENIGMA, PANAMA, XTEA and WAKE.
Block algorithms can be used in: CBC, ECB, CFB and OFB (8 bit and n
bit, where n is the size of the algorithm's block length).
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More information can be found at the libmcrypt homepage
http://mcrypt.sourceforge.net/ .