- of the keys decrypted the message correctly. Note that,
- this field is encrypted and MUST be added to the padding
- calculation.
-
-o Initial Vector (variable length) - The initial vector
- that has been used in packet encryption. It needs to be
- used in the packet decryption as well. What this field
- includes is implementation issue. However, it is
- RECOMMENDED that it would be random data, or perhaps
- a timestamp. It is NOT RECOMMENDED to use zero (0) as an
- initial vector. This field is not encrypted. This field
- is not included into the padding calculation. Length
- of this field equals the cipher's block size. This field
- is, however authenticated.