GenerateReleaseHashAndroid

--------------------Generate Release Key Hash Android--------------------

STEP 1:

+ Download openssl from https://code.google.com/archive/p/openssl-for-windows/downloads

+ Download and install Java Development Kit (JDK) 8

STEP 2:

Extract and copy folder to Disk 'C:\', rename it to 'openssl'

STEP 3:

Edit 'path' in 'System variables' Add new path to your openssl's bin folder: 'C:\openssl\bin'

STEP 4:

Add new 'User variable' OPENSSL_CONF references to your 'openssl.cnf' file:

STEP 5:

Go to your jdk's bin folder (often: C:\Program Files (x86)\Java\jdk1.8.0_141\bin).
Then, open command line from here

STEP 6:

Generating an upload key (if you don't have one)

keytool -genkeypair -v -keystore my-upload-key.keystore -alias my-key-alias -keyalg RSA -keysize 2048 -validity 10000

STEP 7:

Type this command and copy your key hash:

keytool -exportcert -alias androiddebugkey -keystore my-upload-key.keystore | OPENSSL sha1 -binary | OPENSSL base64