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COMMENT( method type keysize blocksize identifier)
def(ROW)(5)(row(cell(ARG1)cell(ARG2)cell(ARG3)cell(ARG4)cell("ARG5")))
The following table presents an overview of methods that are currently
available. Methods for which the block size is specified as N.A. are stream
ciphers; other methods are block ciphers:
table(5)(lllll)(
rowline()
row(cell(method)cell(keysize)cell(blocksize)cell(mode)cell(identifier))
row(cell()cell((bytes))cell((bytes)))
rowline()
ROW(AES) (16) (8)(CBC)(aes-128-cbc)
ROW() ( ) ( )(EBC)(aes-128-ecb)
ROW() ( ) ( )(CFB)(aes-128-cfb)
ROW() ( ) ( )(OFB)(aes-128-ofb)
ROW() (24) (24)(CBC)(aes-192-cbc)
ROW() ( ) ( )(EBC)(aes-192-ecb)
ROW() ( ) ( )(CFB)(aes-192-cfb)
ROW() ( ) ( )(OFB)(aes-192-ofb)
ROW() (32) (32)(CBC)(aes-256-cbc)
ROW() ( ) ( )(EBC)(aes-256-ecb)
ROW() ( ) ( )(CFB)(aes-256-cfb)
ROW() ( ) ( )(OFB)(aes-256-ofb)
rowline()
ROW(BLOWFISH)(16) (8)(CBC)(bf-cbc)
ROW() ( ) ( )(EBC)(bf-ecb)
ROW() ( ) ( )(CFB)(bf-cfb)
ROW() ( ) ( )(OFB)(bf-ofb)
row(setmanalign(lssss)cell(max key length is 56 bytes, 16 generally used))
rowline()
ROW(CAMELLIA) (16) (16)(CBC)(camellia-128-cbc)
ROW() ( ) ( )(EBC) (camellia-128-ecb)
ROW() ( ) ( )(CFB) (camellia-128-cfb)
ROW() ( ) ( )(OFB) (camellia-128-ofb)
ROW() (24) ()(CBC) (camellia-192-cbc)
ROW() ( ) ( )(EBC) (camellia-192-ecb)
ROW() ( ) ( )(CFB) (camellia-192-cfb)
ROW() ( ) ( )(OFB) (camellia-192-ofb)
ROW() (32) ()(CBC) (camellia-256-cbc)
ROW() ( ) ( )(EBC) (camellia-256-ecb)
ROW() ( ) ( )(CFB) (camellia-256-cfb)
ROW() ( ) ( )(OFB) (camellia-256-ofb)
rowline()
ROW(CAST)(16) (8)(CBC)(cast-cbc)
ROW() ( ) ( )(EBC)(cast-ecb)
ROW() ( ) ( )(CFB)(cast-cfb)
ROW() ( ) ( )(OFB)(cast-ofb)
row(setmanalign(lssss)
cell(min key length is 5 bytes, max is shown))
rowline()
ROW(DES)(8)(8)(CBC)(des-cbc)
ROW() ( )( )(EBC)(des-ebc)
ROW() ( )( )(CFB)(des-cfb)
ROW() ( )( )(OFB)(des-ofb)
rowline()
ROW(DESX)(8)(8)(CBC)(desx-cbc)
rowline()
ROW(3DES)(16)(8)(CBC)(des-ede-cbc)
ROW() ( ) ( )(EBC)(des-ede)
ROW() ( ) ( )(CFB)(des-ede-cfb)
ROW() ( ) ( )(OFB)(des-ede-ofb)
rowline()
ROW(3DES)(24)(8)(CBC)(des-ede3-cbc)
ROW() ( ) ( )(EBC)(des-ede3)
ROW() ( ) ( )(CFB)(des-ede3-cfb)
ROW() ( ) ( )(OFB)(des-ede3-ofb)
row(setmanalign(lssss)
cell(Key bytes 9-16 define the 2nd key, bytes 17-24))
row(setmanalign(lssss)cell(define the 3rd key))
rowline()
ROW(RC2) (16)(8)(CBC)(rc2-cbc)
ROW() ( ) ( )(EBC)(rc2-ecb)
ROW() ( ) ( )(CFB)(rc2-cfb)
ROW() ( ) ( )(OFB)(rc2-ofb)
row(setmanalign(lssss)\
cell(Key length variable, max. 128 bytes, default length is shown))
rowline()
ROW(RC2-40)(5)(8)()(rc2-40-cbc)
row(setmanalign(lssss)cell(obsolete: avoid))
rowline()
ROW(RC2-64)(8)(8)()(rc2-64-cbc)
row(setmanalign(lssss)cell(obsolete: avoid))
rowline()
ROW(RC4)(16)(N.A.)()(rc4)
row(setmanalign(lssss)\
cell(Key length is variable, max. 256 bytes. default length is shown))
row(setmanalign(lssss)
cell(Encrypt again to decrypt. Don't use tt(DecryptBuf)))
rowline()
ROW(RC4-40)(5)(N.A.)()(rc4-40)
row(setmanalign(lssss)cell(obsolete: avoid))
rowline()
ROW(RC5) (16)(8) (CBC)(rc5-cbc)
ROW() ( ) ( ) (EBC)(rc5-ecb)
ROW() ( ) ( ) (CFB)(rc5-cfb)
ROW() ( ) ( ) (OFB)(rc5-ofb)
row(setmanalign(lssss)
cell(Key length variable, max. 256 bytes, rounds 8, 12 or 16,))
row(setmanalign(lssss)
cell(default # rounds is 12))
rowline()
)
The RC4 stream cipher is subject to a well-known attack
(cf. lurl(http://www.wisdom.weizmann.ac.il/~itsik/RC4/Papers/Mantin1.zip))
unless the initial 256 bytes produced by the cipher are discarded.
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