get hash fro key android debug code example
Example 1: generate sha1 key for facebook login android
keytool -exportcert -alias <aliasName> -keystore <keystoreFilePath> | openssl sha1 -binary | openssl base64
Example 2: generate sha1 key for facebook login android
keytool -exportcert -alias androiddebugkey -keystore debug.keystore | openssl sha1 -binary | openssl base64