전자서명과 인증기관에 관한 연구

A Study on the Electronic Signature and Certification Authority

In this paper, we discussed various securities of electronic signature. Electronic message　means information generated, communicated, received, or stored in an electronic form by a device possessing data processing capabilities such as a computer. Digital signature　means information, which is unique to an electronic message, created by a private key using an asymmetric cryptosystem such that the identity of the person generating the electronic message and any possible alteration thereof can be verified. Also, Asymmetric cryptosystem is an encryption method where the key used to encrypt information is different from the key used to retrieve the encrypted information. Private key　means information in electronic form used to create a digital signature and Public key　means information in electronic form used to verify a digital signature.