An electronic signature is a mathematical circuit designed to display the authenticity of electronic messages or documents. A valid digital signature provides every reason for the recipient to believe that the message was created using the well-known sender, that it was indeed sent (authentication and reliability), and that the message was not changed during the transmission (integrity).
Answering the question: “EDS - what is it?” - It is worth noting that digital signatures are a standard element of most cryptographic sets of protocols and are usually used for software distribution, financial transactions, as well as in many other cases when it is important to determine forgery or falsification.
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