How can I find and run the keytool

Question

I am reading an development guide of Facebook Developers at here

It says that I must use keytool to export the signature for my app such as:

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

I do not know how to find the keytool in order to run it. I tried to open a Windows command prompt and paste the above command, but it did not work.

Solution 1

I found a solution by myself as below quote. It works fine.

"C:\Program Files\Java\jdk1.6.0_26\bin\keytool.exe" -exportcert -alias
> sociallisting -keystore "D:\keystore\SocialListing"  |
> "C:\cygwin\bin\openssl.exe" sha1 -binary | "C:\cygwin\bin\openssl.exe"
> base64

Solution 2

Simply enter these into Windows command prompt.

cd C:\Program Files\Java\jdk1.7.0_09\bin

keytool -exportcert -alias androiddebugkey -keystore "C:\Users\userName\.android\debug.keystore" -list -v

The base password is android

You will be presented with the MD5, SHA1, and SHA256 keys; Choose the one you need.

Solution 3

To get android key hash code follow these steps (for facebook apps)

1. Download the openssl for windows here
2. now unzip to c drive
3. open cmd prompt
4. type cd C:\Program Files\Java\jdk1.6.0_26\bin
5. then type only keytool -export -alias myAlias -keystore C:\Users\<your user name>\.android\myKeyStore | C:\openssl-0.9.8k_WIN32\bin\openssl sha1 -binary | C:\openssl-0.9.8k_WIN32\bin\openssl enc -a -e
6. Done

To get Certificate fingerprint(MD5) code follow these steps

1. go to - C:\Program Files\Java\jdk1.6.0_26\bin
2. inside the bin folder run the jarsigner.exe file
3. open cmd prompt
4. type cd C:\Program Files\Java\jdk1.6.0_26\bin
5. then again type on cmd keytool -list -keystore "C:/Documents and Settings/<your user name>/.android/debug.keystore"
6. it will ask for Keystore password now. The default is "android" type and enter
7. Done.

Solution 4

keytool is part of the JDK.

Try to prepend %{JAVA_HOME}\ to the exec statement or c:\{path to jdk}\bin.

Solution 5

I found this on another post, which did not get many upvotes, but it was super helpful for me. So will add it here.

Android Studio will bring a keytool with it.

C:\Program Files\Android\Android Studio\jre\bin

You can see his post below by Richar Heap, with a helpful reference. I did see this before but forgot about it. https://stackoverflow.com/a/51524526/4446406

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Comments

[Elshan]

if you are running Linux based system /usr/local/java/bin# ./keytool if you are running Windows find the JDK install path and check bin folder

[ashraf alqaabera]

i found this ansour you can use it to solve the prob stackoverflow.com/a/57390582/13405428

[Nguyen Minh Binh]

Could you tell me how to run below command? keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore | openssl sha1 -binary | openssl base64

[Nguyen Minh Binh]

Yes, I did. and when I run above command, the CMD say: 'openssl' is not recognized as an internal or external command, operable program or batch file.

[Matthew Willis]

You probably need to install the openssl package as well via cygwin's setup.

[Nguyen Minh Binh]

I installed openssl package already. The problem still occurs :(

[Matthew Willis]

Can you run openssl by itself? What options do you see when you type "open" and press tab?

[Nguyen Minh Binh]

I installed cygwin as well as openssl already. But I don't know how to run them. I just run windows command line (cmd) and type the command.

[Matthew Willis]

You have to access the cygwin shell. Installing cygwin should've made a shortcut on your desktop for it.

[ArtOfWarfare]

This worked for me up until the final step. After typing in "android" it spits out garbage... my guess is it isn't using the proper encoding? If I enter in something like "blah", it tells me the password was incorrect. So it knows I have the password correct when I type in "android"

[ArtOfWarfare]

I found the issue was I had left off the flags -list and -v

[Broo]

this worked for me. For debug keys use the -alias androiddebugkey.

[Jaime Montoya]

I found it here: C:\Program Files\Java\jre1.8.0_111\bin\keytool.exe

[Andrew Grow]

I use for the release version next line: 1) cd C:\Program Files\Java\jdk1.8.0_162\bin and next 2) keytool -list -v -keystore "C:\AndroidProjects\Project1\app\myapp.keystore"

[SHAHM]

Or C:\Program Files\Android\Android Studio\jre\bin

[Todd Hale]

I put the cer file and truststore file in the same directory and used this command: "%JAVA_HOME%\bin\keytool" -import -keystore truststore -file certificate.cer -alias my-alias

[Pete Alvin]

Thanks @SHAHM: great for us folks that don't want to explicitly download Java AGAIN and be bugged every week to upgrade to latest version.

[Gustaf Liljegren]

keytool error: java.lang.Exception: Only one command is allowed: both -exportcert and -list were specified.

[dantechguy]

I found that only keytool -list -v -alias androiddebugkey -keystore %USERPROFILE%\.android\debug.keystore worked for me. Found here from Google :)

[Gwi7d31]

For the "found it here" @JaimeMontoya comment as an addition. Add the directory for keytool.exe to your PATH. It'll make your life a whole lot easier.