(1) Utilize the keystore file of the project.
(2) Query MD5 signature through certificate. RSA file.
The specific steps are as follows:
1) to get the RSA file.
APK is opened as a zip file, and one of them has. The RSA suffix in the \META-INF\ directory, usually named CERT. Republic of South Africa (Republic of South Africa)
2) Use the keytool command to obtain the MD5 signature.