Public document legalization services in Indonesia are currently not carried out electronically, with the exception of electronic application registration (e-form) and electronic validation of apostille certificates (e-register). To adapt to the development and needs of a digital society or digital transformation, apostille legalization services must be carried out electronically (e-apostille). Based on legal provisions regarding the obligation of Electronic System Providers to organize electronic systems in a reliable, secure, and well-functioning manner, the electronic system created for the e-apostille service must be guaranteed to be reliable and secure in accordance with statutory regulations about the reliability and security of electronic systems in Indonesia. The research method used in this study is a quantitative and qualitative approach. This study uses a purposive sampling technique because sampling is carried out with certain considerations or criteria that must be met. The data collection method in this study was carried out by distributing questionnaires online through social media. In measuring respondents' answers, filling out the questionnaire was measured using a Likert scale. Statements are given a score of 1 for strongly disagree answers, a score of 2 for disagree answers, a score of 3 for doubtful answers, a score of 4 for agreed answers, and a score of 5 for strongly agreed answers. The data collection technique in this study uses a questionnaire by providing several written statements addressed to respondents, which will then be answered. Structural equation modelling is often called Partial Squares Structural Equation Modeling (PLS-SEM) with SmartPLS version 3.0. Using the normative juridical method, the results of this study emphasize the legal basis for the implementation of e-apostille legalization services. In addition, it also regulates the application of the obligation to use electronic system security reliability certificates through an information security management system by legal theories, the principle of legal certainty and the principle of benefit, as well as the aim of providing a sense of security in the use of information technology. This research concludes that developing regulations governing reliable and secure electronic apostille is necessary for certainty and convenience in Indonesia. Electronic apostille regulation has a positive and significant relationship with Electronic System Security, Digital signatures have a positive and significant relationship with Electronic System Security.
Solekan et al. (Wed,) studied this question.