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Editorial Team
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Asked: 2026-06-09T16:14:27+00:00

I wish to generate an application signature for my app which will later be

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I wish to generate an application signature for my app which will later be integrated with Facebook. In one of Facebook’s tutorials, I found this command:

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

In the tutorial, it says that by running this cmd, my process of generating the signature will start.

However, this command gives an error:

openssl is not recognized as an internal or external command

How can I get rid of this?

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1 Answer

  1. Editorial Team

    Well at the place of OpenSSL … you have to put actually the path to your OpenSSL folder that you have downloaded. Your actual command should look like this:

    keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore | "C:\Users\abc\openssl\bin\openssl.exe" sha1 -binary | "C:\Users\abc\openssl\bin\openssl.exe" base64

    Remember, the path that you will enter will be the path where you have installed the OpenSSL.

    Edit:

    you can download OpenSSL for windows 32 and 64 bit from the respective links below:

    OpenSSL for 64 Bits

    OpenSSL for 32 Bits

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