The following describes how to view your own application signature and the signature information of the third-party APK or system APK, including MD5, SHA 1, SHA256 values and signature algorithm.

1. You can view your application signature in two ways (1). You can view the Debug apk through Eclipse, as shown below:

(2) You can view the application of keystore signature by the following command.

Keytool-list-keystore e: \ trinea \ keystore \ appsearch.keystore, you will be asked to enter your signature password, which is android by default, as shown below:

2. Check the signatures of third-party applications or system applications. Open the apk to be viewed with winrar, and extract the META-INF folder to obtain the certificate. RSA file, and print the certificate information through the keytool-print cert-file meta-INF/cert.rsa command, as shown in the following for the WeChat certificate information:

You can view the MD5, SHA 1 and SHA256 values of the signature and signature algorithm.