Systems and methods for verifying digital signature of file

Disclosed are systems and methods for verifying a digital signature of a file. A check tool can determine a DS certificate is valid by checking that the DS certificate has the required integrity and by validating the issuing center data, determine a digital signature is valid by checking that the file has an appropriate integrity and the DS certificate is valid, if the DS certificate is valid, determine the DS certificate is trusted by finding the trusted certificate data related to the DS certificate data, and categorize the at least one file as trusted when the digital signature is valid andthe DS certificate is trusted. 本申请提供了一种用于验证文件的数字签名的系统和方法。检查工具可以通过检查DS证书具有所需的完整性并通过验证颁发中心数据来确定DS证书是有效的，以及通过检查文件具有适当的完整性并且DS证书有效来确定数字签名是有效的，如果DS证书是有效的，则通过查找与DS证书数据相关的可信证书数据来确定DS证书是可信的，以及在数字签名是有效的且DS证书是可信的时将至少一个文件分类为可信的。