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

Answer 1

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

Answer 2

SIMPLEST SOLUTION OUT THERE FOR THIS PROBLEM:

I have had this Problem for two months now. My key hashes have been pyling up to 9. Today i finally found the simple solution:

STEP 1:

Install the facebook sdk you downloaded from the facebook developer page on your phone. Don´t install the normal facebook app. Make sure you can log into facebook. Then log out.

STEP 2:

Export your app with your final release key as an apk, like you would when uploading it to the playstore.

STEP 3:

Put the Apk file on your phone via usb cable or usb stick.

STEP 4:

Install your app, using a file manager: Example

STEP 5:

Launch your app and try to log in with facebook. A dialog will open and tell you: "the key YOURHASHKEY has not been found in the facebook developer console"

STEP 6:

Write down the key.

STEP 7:

Put it into your facebook developer console and save. Now you are done. Anyone that downloads your app, published with earlier used keystore can log into facebook.

Enjoy

Answer 3

The password of the debug certificate is android and not Android

Answer 4

In order to generate release key hash you need to follow some easy steps.

1) Download Openssl

2) Make a openssl folder in C drive

3) Extract Zip files into this openssl folder created in C Drive.

4) Copy the File debug.keystore from .android folder in my case (C:\Users\SYSTEM.android) and paste into JDK bin Folder in my case (C:\Program Files\Java\jdk1.6.0_05\bin)

5) Open command prompt and give the path of JDK Bin folder in my case (C:\Program Files\Java\jdk1.7.0_40\bin).

6) Copy the following code and hit enter

keytool -exportcert -alias abcd-keystore D:\Projects\MyAppFolder\keystore.txt | C:\openssl\bin\openssl sha1 - binary | C:\openssl\bin\openssl base64 ex - keytool -exportcert -alias (your sing apk alias name enter here like my sign apk alian name is abcd )-keystore "signed apk generated keystore apth enter here" | "openssl bin folder path enter here" sha1 - binary | "openssl bin folder path enter here" base64

7) Now you need to enter password, Password = (enter your sign keystore password here)

8) you got keystore which are used for release app key hash

Answer 5

I was able to do perform the requested task with some of the solutions here, but thought to myself, boy that is stupid... why not to write a small Java code that does this and pack it into a Jar, so I did...

A link to download the Jar

Works on Windows 8... didn't try any other OS.

Answer 6

Try passing the password for the key and store as part of the command

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