A digital signature or digital signature scheme is a mathematical scheme for demonstrating the authenticity of a digital message or document. A valid digital signature gives a recipient reason to believe that the message was created by a known sender, and that it was not altered in transit. Digital signatures are commonly used for software distribution, financial transactions, and in other cases where it is important to detect forgery or tampering.
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ReplyDeleteA digital signature is additional data that is appended to data in transit or storage. It can be checked to verify who the sender is, and to determine whether or not the data has been altered since it was signed.
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