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I've never used this service before so will have to read up to see what these two file properties have to do with protection."
SHA1 and SHA256 are more secure versions of checksums/hashes. If you check one or the other and it matches, it simply means that we are looking at identical files. It does not mean that the files are good or bad, but that they are identical. I only provided both in case your tool that produced only hash value or the other.
There is another shorter hash function called MD5. In theory there could be two files that have the same SHA1 or even MD5 and are the same size that are different, in practice I don't think that happens.
The method that you used did a character by character comparison, and that also showed the two files were identical. I would not worry further, but if you find hash algorithms interesting, take a look... so no need to worry... just read more if you want to.