how to generate facebook key hashes

Android KEY HASH  for Facebook :

Download openSSl from :
http://code.google.com/p/openssl-for-windows/downloads/detail?name=openssl-0.9.8k_WIN32.zip

Extract it. create a folder- OpenSSL in C:/ and copy the extracted code here.

Detect debug.keystore file path.

Detect your keytool.exe path and go to that dir/ in command prompt and run this command in 1 line-

keytool -exportcert -alias androiddebugkey -keystore "C:\Users\Intel\.android\debug.keystore" | "C:\OpenSSL\bin\openssl" sha1 -binary | "C:\OpenSSL\bin\openssl" base64

so facebook "key hash" for this pc is like JdiLgmuFZfHkh79Ejcy2OKGlzkQ=