Which part(s) of CAIN is realized through the use of message digest functions and hashes?

Integrity

Explanation:

In CAIN, integrity is realized through the use of message digest functions and hashes.

Integrity in CAIN simply means securing a message on transit without it being tampered. To accomplish and achieve integrity, hash functions are used. These hash functions receive arbitrary length message and bring out a fixed sized message digest.

The message digest and hash function maps input data of arbitrary length to an output fixed data length. Hashing is used to guarantee integrity.

to change your username, you must:

1) make sure what the username you want to change to is allowed in this community

2) contact a administrator (for example, jaysl)

3) through pm, tell the admin what you want to change to

4) if the username is allowed, it will be changed in a matter of seconds (minutes at most)

~