Facebook Android Generate Key Hash

Question

Trying to create an android app with Facebook integration, I've gotten to the part in the docs where you have to generate a key hash file, it specifies to run the following code

keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore 
| openssl sha1 -binary
| openssl base64

When I run this in my terminal I get an error for Keystore tampered with or password was incorrect,

I just want to generate my Key Hash

Can anyone point me in the right direction?

Answer 1

I. Create key hash debug for facebook

Add code to print out the key hash for facebook

    try {
        PackageInfo info = getPackageManager().getPackageInfo(
                "com.google.shoppingvn", PackageManager.GET_SIGNATURES);
        for (Signature signature : info.signatures) {
            MessageDigest md = MessageDigest.getInstance("SHA");
            md.update(signature.toByteArray());
            Log.i("KeyHash:",
                    Base64.encodeToString(md.digest(), Base64.DEFAULT));
        }
    } catch (NameNotFoundException e) {

    } catch (NoSuchAlgorithmException e) {

    }

II. Create key hash release for facebook

1. Download openssl-0.9.8e_X64
2. Make a openssl folder in C drive
3. Extract Zip files into openssl folder
4. Start -> Run: cmd (press enter)
5. (press) cd C:\Program Files\Java\jdk1.6.0_45\bin. Note: C:\Program Files\Java\jdk1.6.0_45\bin: is path to jdk folder in your computer

6. (press) keytool -exportcert -alias gci -keystore D:\folder\keystorerelease | C:\openssl\bin\openssl sha1 -binary | C:\openssl\bin\openssl base64. Note: D:\folder\keystorerelease: is path to your keystorerelease

7. Enter keystore password: This is password when your register keystorerelease.

   Then you will have a key hash: jDehABCDIQEDWAYz5Ow4sjsxLSw=

8. Login facebook. Access to Manage Apps. Paste key hash to your app on developers.facebook.com

Answer 2

Great blog post on the subject

Extracting the Key Hash from .p12 key

1. Open Terminal or Command line and navigate to where your .p12 key is.
2. Type in: “keytool -v -list -keystore mycert.p12 -storetype pkcs12″ where mycert.p12 is the filename of your .p12 key.
3. Enter keystore password (the one you used when exported .p12 key). 4 . Copy sha1 fingerprint signature bytes text.
4. The bytes at sha1 fingerprint signature are needed to write the “sha1.bin” file. You can use a hexadecimal editor to paste the bytes you copied. Afterwards, save the file as “sha1.bin”.
5. Open terminal again and type in: “openssl base64 -in sha1.bin -out base64.txt”.
6. The resulting “base64.txt” will contain the Key Hash that is needed for Facebook.

Great and simple hexadecimal editor for mac: HexFiend

OpenSSL should be preinstalled on mac, and here is the link for Windows version.

Link