Calculating the Shared Secret

The shared secret SS facilitates secure communication between Bob and Alice:

  1. An ephemeral key pair is created for the transaction.

  2. Using Elliptic Curve Diffie-Hellman (ECDH), the shared secret SS is calculated as:

S=ePrivK⋅vpkS=ePrivK⋅vpk

Where:

  • ePrivKePrivK represents the ephemeral private key generated for the transaction.

  • vpkvpk is the recipient’s viewing public key.

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