What is SHA1 fingerprint?

Question

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 weather this API key

Answer 1

SHA - standing for Secure Hash Algorithm.

SHA-1 is one of several cryptographic hash functions. 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. The transmitted file can be considered genuine only if both checksums are identical.

A file hashed with SHA1 could look like:

752c14ea195c369bac3c3b7896975ee9fd15eeb7

For detailed explanation you can refer to: https://www.lifewire.com/what-is-sha-1-2626011