1. View keystore
$ keytool -list -keystore debug.keystore
result:
Keystore type: JKS
Keystore provider: SUN
Your keystore contains 1 entry
androiddebugkey, Mar 21, 2013, PrivateKeyEntry,
Certificate fingerprint (MD5): E0:F4:90:EE:CD:77:17:0E:B8:C4:AC:64:B2:F6:FC:83
2. View the signature of the third-party application or system application
Open the apk to be viewed with winrar, unzip the META-INF folder, and get the CERT.RSA file in it
$ keytool -printcert -file META-INF/CERT.RSA
result:
Owner: CN=Android Debug, O=Android, C=US
Issuer: CN=Android Debug, O=Android, C=US
Serial number: 514ab2e1
Valid from: Thu Mar 21 15:12:33 CST 2013 until: Sat Mar 14 15:12:33 CST 2043
Certificate fingerprints:
MD5: E0:F4:90:EE:CD:77:17:0E:B8:C4:AC:64:B2:F6:FC:83
SHA1:7F:E5:11:D8:37:4F:DA:D7:75:EA:A5:8C:47:06:85:95:6D:1D:3F:2B
Signature algorithm name: SHA1withRSA
Version: 3