Generate release key hash for facebook login in android

     
keytool -exportcert -alias ALIAS_NAME-keystore KEY_STORE_PATH| OPEN_SSL_PATH  sha1 -binary | OPEN_SSL_PATH  base64

example-
keytool -exportcert -alias ReleaseKey-keystore D:\Android Workspace\MyApp.jks | "C:\bin\openssl.exe"  sha1 -binary | "C:\bin\openssl.exe"  base64


Open command prompt and set the JDK PATH then run the above command to generate the HASH KEY

C:\Program Files\Java\jdk-12.0.2\bin> keytool -exportcert -alias ReleaseKey-keystore D:\Android Workspace\MyApp.jks | "C:\bin\openssl.exe"  sha1 -binary | "C:\bin\openssl.exe"  base64

you will get generated KEY HASH.



If you find open SSL issue then
Please follow these step, I hope your key working properly:

Openssl is not recognized as an internal or external command

1 You will need OpenSSL. You can download the binary from openssl-for-windows project on Google Code.

2 Unzip the folder, then copy the path to the bin folder to the clipboard.

For example, if the file is unzipped to the location C:\Users\openssl-0.9.8k_X64, then copy the path C:\Users\openssl-0.9.8k_X64\bin

and paste this path in your above command.