Intercepting Bluetooth LE communication with an app on the same mobile device

I’m thinking about man-in-the-middle attacks on a BLE connection … normally when people talk about MITM attacks it’s a separate device that sits between the mobile phone/tablet and the BLE device, which immediately limits its effectivene… Continue reading Intercepting Bluetooth LE communication with an app on the same mobile device

crackle – Crack Bluetooth Smart Encryption (BLE)

crackle is a tool to crack Bluetooth Smart Encryption (BLE), it exploits a flaw in the pairing mechanism that leaves all communications vulnerable to decryption by passive eavesdroppers. crackle can guess or very quickly brute force the TK (temporary k… Continue reading crackle – Crack Bluetooth Smart Encryption (BLE)

Is it possible to find the manufacturer of a BLE device from it’s hardware address?

Tools like nmap are able to identify the make of a device based on it’s hardware address. Is there a tool, or some kind of a reference to identify the make of a Bluetooth Low Energy device based on its hardware address?

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Can I start off Cyber Safety seminar by stunning the audience, like getting into their phone’s Wifi/Bluetooth to access a folder and show them?

I am delivering a lecture on Cyber-safety Basics. I want to start off a lecture by involving the audience to get their attention.

Example: I want to ask everyone to connect their cell phones to a Wifi hotspot and then get in… Continue reading Can I start off Cyber Safety seminar by stunning the audience, like getting into their phone’s Wifi/Bluetooth to access a folder and show them?

No-Etch: The Proof in the Bluetooth Pudding

In a previous episode of Hackaday, [Rich Olson] came up with a new no-etch circuit board fabrication method. And now, he’s put it to the test: building an nRF52 Bluetooth reference design, complete with video, embedded below.

The quick overview of [Rich]’s method: print out the circuit with a laser printer, bake a silver-containing glue onto the surface, repeat a few times to get thick traces, glue the paper to a substrate, and use low-temperature solder to put parts together. A potential drawback is the non-negligible resistance for the traces, but a lot of the time that doesn’t matter and …read more

Continue reading No-Etch: The Proof in the Bluetooth Pudding