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I am obtaining a Google Play API key from Google, and it is asking to enter SHA1 fingerprint. I want to know what is SHA1 fingerprint? I also wanted to know whether this API key can be used from another computer?
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SHA-1 is most often used to verify that a file has been unaltered. This is done by producing a hash value(hash value is produced by running an algorithm, called a cryptographic hash function), before the file has been transmitted, and then again once it reaches its destination.
Click on Tasks. Click on Android. Double Click on signingReport (You will get SHA1 and MD5 in Run Bar(Sometimes it will be in Gradle Console)) Select app module from module selection dropdown to run or debug your application.
This process produces a short fingerprint which can be used to authenticate a much larger public key. For example, whereas a typical RSA public key will be 2048 bits in length or longer, typical MD5 or SHA-1 fingerprints are only 128 or 160 bits in length.
Click the “Security” icon/tab at the top of the “Page Info” dialog. Click “View Certificate”. Verify that the certificate's name under “Common Name (CN)” exactly matches what this GRC page shows. The SHA1 fingerprint is shown under “Fingerprints”.
It is a standard for the implementation of a 'secure hash algorithm' - a one-way cryptographic function that can be used to act as a 'signature' of a sequence of bytes. It is very unlikely that 2 different byte sequences would produce the same value (though not impossible)
http://en.wikipedia.org/wiki/SHA-1
Note that there are other, more robust standards out there these days e.g. SHA256 and beyond.
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They are asking for the SHA1 fingerprint on your keystore file (You sign your apps using this before you can push them to google play)
you can get your key by doing this
keytool -exportcert -alias your-key-name -keystore /path/to/your/keystore/file -list -v
you can use your keystore file from another computer just put it on a USB stick or email it to yourself (Make sure to keep it private !IMPORTANT!) and point your IDE to the file
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