Security

• Digital Signature

  • Prove who sent the message (actually, prove that the message&#-110;s creator had access to a certain secret.)
  • Prove that the message was not altered en route.

• Encryption: Prevent third parties from reading the message.

• Whole message or specific parts of messages.

• Not channel-level. Either per message or associated with long-running &#-109;business&#-108; transaction.