The usual command produced an unexpected 24-character value instead of the required key hash:
1 | keytool -exportcert -alias YOUR_ALIAS -keystore YOUR_KEYSTORE | openssl sha1 -binary | openssl base64 |
An alternative is to print the signing certificate details:
1 | keytool -list -v -keystore key.jks -alias key0 |
Copy the SHA-1 fingerprint:
Remove separators, convert the hexadecimal bytes to Base64 with a trusted local tool, and register the result in the Facebook developer console.
