US Patent 9853955 Techniques for securing delivery of an audio message

Techniques for securing the delivery of an audio message on a device are described. A method may include receiving a message encrypted with a public key from a sender at a recipient device; authenticating a recipient using an image of an ear of the recipient; retrieving a private key when the authentication succeeds; decrypting the message using the private key; and presenting the decrypted message through a speaker on the recipient device. Other embodiments are described and claimed.