digital signature
noun/ˌdɪdʒɪtl ˈsɪɡnətʃə(r)/
/ˌdɪdʒɪtl ˈsɪɡnətʃər/
(computing)- a process that guarantees that the contents of a message have not been altered in the process of sending and delivering the message compare electronic signature
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digital signature