Handshake Pattern Analysis

Message A show detailed analysis

Message A, sent by the initiator, does not benefit from sender authentication and does not provide message integrity. It could have been sent by any party, including an active attacker. Message contents do not benefit from message secrecy even against a purely passive attacker and any forward secrecy is out of the question. 0,0

Message B show detailed analysis

Message B, sent by the responder, benefits from sender and receiver authentication and is resistant to Key Compromise Impersonation. Assuming the corresponding private keys are secure, this authentication cannot be forged. Message contents benefit from some message secrecy and some forward secrecy, but not sufficiently to resist any active attacker. 4,1

Message C show detailed analysis

Message C, sent by the initiator, benefits from sender and receiver authentication and is resistant to Key Compromise Impersonation. Assuming the corresponding private keys are secure, this authentication cannot be forged. Message contents benefit from message secrecy and strong forward secrecy: if the ephemeral private keys are secure and the responder is not being actively impersonated by an active attacker, message contents cannot be decrypted. 4,5

Message D show detailed analysis

Message D, sent by the responder, benefits from sender and receiver authentication and is resistant to Key Compromise Impersonation. Assuming the corresponding private keys are secure, this authentication cannot be forged. Message contents benefit from message secrecy and strong forward secrecy: if the ephemeral private keys are secure and the initiator is not being actively impersonated by an active attacker, message contents cannot be decrypted. 4,5

Message E show detailed analysis

Message E, sent by the initiator, benefits from sender and receiver authentication and is resistant to Key Compromise Impersonation. Assuming the corresponding private keys are secure, this authentication cannot be forged. Message contents benefit from message secrecy and strong forward secrecy: if the ephemeral private keys are secure and the responder is not being actively impersonated by an active attacker, message contents cannot be decrypted. 4,5

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