(h) "Computer Resource" means a computer, computer system, computer network, data, computer database or software. (i) "Subscriber" means a person who has obtained a certificate under Subsection (3) of Section 31. (j) "Key Pair" means a private key in an asymmetric crypto system and of pair of public key, interconnected in a mathematics form with the private key which has a code to verify digital signature by the public key to be created from the private key. (k) "Data" means the presentation of information, knowledge, fact and concept or instructions in any form, which are kept in a formalized manner in a computer system or computer network and is intended for processing the same, or processed or stored in a computer memory. (l) "Tribunal" means the Information Technology Tribunal formed pursuant to section 60. (m) "Private Key" means a key of any key pair used to create a digital signature. (n) "Controller" means the Controller appointed or designated pursuant to section 13. (o) "Digital Signature" means a signature made in any electronic form to be included in the transformation of electronic record by a person having a non- transformed initial electronic record and the public key of signatory by using a type of asymmetric crypto system that may clearly ascertain the following matters: (1) Whether or not transformation of electronic record was created by using a type of private key keeping a logical consistency with the public key of signatory; and (2) Whether or not the initial electronic record has been changed after the transformation of electronic record. 3