Answer:
Digital Signature
Explanation:
Digital Signatures are used in electronic messages to verify the sender's ıdentity. It is a online signature and highly secure way of proving identity.
The Signature is <em>encrypted</em> and can be decoded using <em>public-key</em> .
Digital signatures are certificated uniquely from accredited providers, encrypted and can be validated by certificate authorities.
Messages with digital signatures prove that the message sent by the owner of the signature and didn't changed on the way.
Answer:
.xlxs
but it supports pretty much any spreadsheet format.
A .jpg file is going to be a picture. =)
I’m not sure but I think it belongings.
Answer:
They predicted another cold day in Seattle and another windy day in Seattle.