UTHSC-H Digital IDs
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Signing & Encrypting E-mail

Introduction

One can chose to 
  • individually sign and/or encrypt each message, or
  • have all e-mail messages automatically signed and/or encrypted.
Encryption requires that you have the public key of the individual to whom you are sending an encrypted message. One may obtain the public key in a number of ways. 
  • When you receive a digitally signed message, you receive the sender's public key.
    • Mail clients may automatically store the public keys of all senders.
    • You may have to selectively chose to save an individual's public keys. 
  • An individual's public key may be obtained from a directory service. Examples include

 How to Sign and/or Encrypt Selected Messages


 
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