![]() Once this is achieved, the researchers say it's possible to glean the ECDSA encryption key via a side-channel attack by observing the electromagnetic radiations coming off the NXP chip during ECDSA signatures, the core cryptographic operation of the FIDO U2F protocol that's performed when a U2F key is registered for the first time to work with a new account.ĭiscover the Hidden Dangers of Third-Party SaaS AppsĪre you aware of the risks associated with third-party app access to your company's SaaS apps? Join our webinar to learn about the types of permissions being granted and how to minimize risk. To clone the U2F key, the researchers set about the task by tearing the device down using a hot air gun to remove the plastic casing and expose the two microcontrollers soldered in it - a secure enclave (NXP A700X chip) that's used to perform the cryptographic operations and a general-purpose chip that acts as a router between the USB/NFC interfaces and the authentication microcontroller. "It is still safer to use your Google Titan Security Key or other impacted products as a FIDO U2F two-factor authentication token to sign in to applications rather than not using one," the researchers said. An actor will have first to steal the target's login and password of an account secured by the physical key, then stealthily gain access to Titan Security Key in question, not to mention acquire expensive equipment costing north of $12,000, and have enough expertise to build custom software to extract the key linked to the account.
0 Comments
Leave a Reply. |