Roche Diagnostics International Ag

Roche Diagnostics Operations, Inc.

Roche Diagnostics Gmbh

F. Hoffmann-la Roche Ag

Felix Lindner

Guido Konrad

Martin Troesch

Gregor Kopf

Raymond Strickland

Markus Oberli

Marcel Frikart

Markus Jungen

Matthias Ehrsam

Philippe Frikart

Christian Frey

Raymond A Strickland

A method and system establishing cryptographic communications between a remote device and a medical device, with the medical device having less processing power than the remote device are disclosed. The method may comprise establishing unencrypted communication between the remote device and the medical device, generating an asymmetric key pair by the remote device comprising a public key and a private key, generating a key request message and sending of the key request message together with the public key to the medical device, generating a pre-master key and encryption of the pre-master key with the received public key by the medical device, generating a key response message and sending of the key response message together with the encrypted pre-master key from the medical device to the remote device, decrypting the encrypted pre-master key with the private key by the remote device, and deriving a master key as a symmetric key from the pre-master key.

Method and system for establishing cryptographic communications between a remote device and a medical device

A method for authenticating a medical device and a remote electronic device may include generating a PIN code by one device, capturing the generated PIN code with the other device, checking authentication of the PIN code, which is based at least in part on the captured PIN code, by the one device, generating a strong key by the one device, sending the strong key encrypted to the other device, checking authentication of the sent strong key by the one device, and upon successful authentication, storing the strong key in a memory of the one device and the other device. The roles of the medical device and the remote electronic device may be reversed in the authenticating method. The authenticating method may be preceded by a pairing process and/or followed by a binding process.

Method for pairing and authenticating one or more medical devices and one or more remote electronic devices

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Berlin, Germany

Felix Lindner