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digital signature

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noun Digital Technology.
  1. an encrypted digital code appended to an electronic document to verify that it was created by a known source and has not been altered.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for digital signature

digital signature

noun
  1. computing electronic proof of a person's identity involving the use of encryption; used to authenticate documents
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012