天威诚信是依据《中华人民共和国电子签名法》由工业和信息化部许可设立的电子认证服务机构，致力于提升网络空间的安全性和可信度，面向各类网络应用提供身份认证、行为认证，并对数据电文进行有效固化，以实现网络空间电子数据的安全、可信、可用、可追溯，促进数字经济的健康有序发展。天威诚信已为近5亿用户提供电子认证服务，服务范围覆盖政务、银行、证券、保险、司法、招投标、互联网金融等领域。

iTrusChina Co., Ltd. is a certificate authority permitted by Ministry of Industry and Information Technology according to the PRC Electronic Signatures Law. To ensure the security, credibility, availability and traceability of the electronic data in cyberspace, and enhance the healthy and orderly development of digital economy, iTrusChina is devoted to provide identity authentication and behavior authentication, and effectively immobilize the data messages. iTrusChina has provided its certification services for nearly 500,000,000 users from different fields, such as government, bank, security, insurance, judiciary, bidding, Internet finance, etc.