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add a not about replay attacks

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Michele Balistreri 2017-10-28 18:23:17 +03:00
parent 196e91f3ec
commit 8729768478
1 changed files with 2 additions and 1 deletions
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SECURE_CHANNEL.MD
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@ -5,7 +5,8 @@ A Secure Channel must be established to allow communication between the applet a
a secure channel is to avoid traffic snooping. What we achieve with the secure channel below is only secrecy, not
authentication. Authentication would require either a set of pre-shared keys or the usage of certificates. In particular,
it does not protect from MITM attacks. If the risk of such attacks exists, protection should be set up in a different
layer or the protocol must be extended for mutual authentication.
layer or the protocol must be extended for mutual authentication. A command counter should be added to protect from
replay attacks.
A short description of the protocol is as follows