Digital signatures are a technology that uses public key cryptography to guarantee that the contents of communications have not been tampered with. It can detect tampering, but does not have the ability to prevent or correct tampering.
The main reason of using digital signature is to ensure message integrity.it also helps to ensure authenticity and non-repudiation of the message. A digital signature can never ensure the confidentiality of data
A digital signature is primarily used to provide a mechanism for ensuring the integrity and authenticity of digital messages or documents. Therefore, a digital signature is most likely to prevent unauthorized changes to the content of a document or message.
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