e/Ladder-DES

Information
has gloss	eng: In cryptography, Ladder-DES is a block cipher designed in 1994 by Terry Ritter. It is a 4-round Feistel cipher with a block size of 128 bits, using DES as the round function. It has no actual key schedule, so the total key size is 4×56=224 bits.
lexicalization	eng: Ladder-DES
instance of	c/Broken block ciphers