1. A method of providing security, comprising: making, by a security providing apparatus, an evidence collection request for collection of evidence of an evidence collection-target apparatus to an evidence collection agent in a remote digital forensic environment; collecting evidence data corresponding to the evidence collection request from the evidence collection agent; verifying the evidence data based on a signature value of the evidence data collected from the evidence collection agent; generating evidence analysis data based on the verified evidence data; verifying the evidence analysis data based on a signature value of the evidence analysis data; and providing security for the evidence collection-target apparatus based on results of the verification of the evidence analysis data, wherein verifying the evidence data comprises verifying an evidence collection token received from the evidence collection agent along with the evidence data, wherein the evidence collection token comprises information about the evidence collection-target apparatus, a predetermined type of evidence, a predetermined evidence collection method, collection permission information, and an evidence collection period, wherein generating the evidence analysis data comprises generating the evidence analysis data using an evidence analysis method included in an evidence analysis token corresponding to the verified evidence data, and wherein the evidence analysis token comprises information about the evidence data, a predetermined evidence analysis method, an evidence analysis period, an evidence data decryption method, and a decryption key.