• From Wikipedia - In general Triple DES with three independent keys (keying option 1) has a key length of 168 bits (three 56-bit DES keys), but due to the meet-in-the-middle attack the effective security it provides is only 112 bits.

    So 3Des would be wrong because it doesn't use a _single_ 56 bit key but it uses three of them.

    Your answer would still be wrong as the effective key strength is 112 bits.

Page 1 of 1
  • 1