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1 definition found
 for digital signatures
From The Free On-line Dictionary of Computing (18 March 2015) :

  digital signature
  digital signatures
      Extra data appended to a message which
     identifies and authenticates the sender and message data using
     public-key encryption.
     The sender uses a one-way hash function to generate a
     hash-code of about 32 bits from the message data.  He then
     encrypts the hash-code with his private key.  The receiver
     recomputes the hash-code from the data and decrypts the
     received hash with the sender's public key.  If the two
     hash-codes are equal, the receiver can be sure that data has
     not been corrupted and that it came from the given sender.

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