Enforcement Rules of the Electronic Signatures Act Article 4
The term "private key" as defined in Subparagraph 3, Article 2 of the Act shall mean certain digital data that are contained in the digital data having the parity matching relation and are possessed by a signatory to create a digital signature.
中文原文 電子簽章法施行細則第4條
本法第二條第一項第三款所稱私密金鑰，係指具有配對關係之數位資料中，由簽署人保有，用以製作數位簽章者。