It should be America. Electronic signature law originated in the United States. 199 1 year, the Information Security Committee of American Bar Association (ABA) began to draft the Model Law on Digital Signature. Four years later, the Committee still failed to reach a consensus on the key issues of the Model Law, so it decided to publish the draft in the form of a guide. 1in the summer of 995, ABA digital signature guide, which has great influence on American states and even the whole world, was finally born. Its intention is to "provide a solution, so that the digital signature can be recognized after the certification body approved by the state government applies PKI system". This legislative mode, which relies directly on digital signature technology, has deeply influenced the States that legislated earlier in the United States.