Generate Android Key hash for Facebook App and LinkedIn App


Today I am going to start my first post on

Overview: This article explains how to generate Android key hash for FACEBOOK App and LINKEDIN App as in Login Authentication i.e. Facebook SDK integration to android require an key hash configuration same for LinkedIn App.

Android key hash facebook

So  Are you working on Social Login ? From Android to LinkedIn App or Android to Facebook App? Whichever it may be you will need an android hash key facebook and package name to login using social elements.

I hope you all are familiar with android studio or eclipse and required java and SDK required to run an android application.

Let us start with the steps

  • Go to your keytools directory using command prompt.

Now what is keytools and where will you get it in your system.

What is Java Keytool ?

Java Keytool is a key and certificate management utility. It allows users to manage their own public/private key pairs and certificates. It also allows users to cache certificates.

Java Keytool stores the keys and certificates in what is called a Keystore. By default, the Java Keystore is implemented as a file.

It protects private keys with a password. A Keytool Keystore contains the private key and any certificates necessary to complete a chain of trust and establish the trustworthiness of the primary certificate.

Where will you get or what is its directory?-

Generally Java folder is in C:/Program Files/  then move inside that folder to jre6 or jre7. and then move to bin folder. To make things more clear i will post a image/screenshot of it.

Android hash key facebook

  • Go to this directory and then enter the following command

Now after you enter the above code you may get the following error

openssl is not recognized as an internal or external command

Below screenshot will make things more clear

Android hash key facebook


Now this error may be because of two things

  1. OPENSSL path may be different.
  2. OPENSSL may not have been installed in your system.

For first error the solution is to change the path of OpenSSL for eg


and for second error the solution is you can download the

To download OPENSSL

OpenSSL for 32bits

OpenSSL for 64bits

After you have downloaded the zip file. Just extract the file to you required path. Preferably (program files) for eg.

C:\Program Files\openssl

  •  After this, you need to tweak the previous command in the command prompt a bit.

Android hash key facebook

If you have saved the OpenSSL folder in example path

  • Then you will be asked for password

Android hash key facebook

Enter android as password then you will get the hash key. And then use the hash key wherever you need.


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