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Friday, July 20, 2018

What does the sender need in order to digitally sign an email?

What does the sender need in order to digitally sign an email?

  • The public key of the recipient
  • The public key of the sender
  • The private key of the recipient
  • The private key of the sender 

EXPLANATION

A digital signature is created by hashing a message and encrypting the hash with the sender's private key. The recipient can then decrypt the hash with the sender's public key. The recipient's keys are not used for a digital signature.
A general overview of this process can be found here https://www.docusign.com/how-it-works/electronic-signature/digital-signature/digital-signature-faq

SOURCE

https://en.wikipedia.org/wiki/Public-key_cryptography#Digital_signatures
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