Sensor-Watch
tpm2-totp
Sensor-Watch | tpm2-totp | |
---|---|---|
9 | 5 | |
988 | 149 | |
- | 7.4% | |
9.0 | 0.0 | |
2 days ago | about 1 month ago | |
C | C | |
GNU General Public License v3.0 or later | BSD 3-clause "New" or "Revised" License |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Sensor-Watch
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Swatch Internet Time
maybe you're thinking of sensor watch ? it's beat watch face seems to be set to whatever timezone you configure which defaults to UTC :
https://github.com/joeycastillo/Sensor-Watch/blob/main/movem...
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Casio Adds Fitness Features to Original G-Shock Digital Watch
Joey Castillo’s Sensor Watch project seems to be the only example in this no man’s land. Over 365 days on a single coin cell battery so far.
https://github.com/joeycastillo/Sensor-Watch
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Europe pushing for lunar time zone
Sensorwatch has a watch face with iso8601 weeknumber (which I did)
https://github.com/joeycastillo/Sensor-Watch/blob/main/movem...
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[Idea validation] f-91w minute repeater mod
I don't know much about communities using the original hardware, but the people over at Oddly Specific Objects created new hardware that goes into the f91w. You could probably ask over there.
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TOTP tokens on my wrist with the smartest dumb watch
If you're a bit weirded out by the website secret pasting, I made a PR which lets the sensor watch load TOTP secrets from an Aegis export (essentially just a bunch of TOTP URIs):
https://github.com/joeycastillo/Sensor-Watch/pull/95
This is the reason I bought the board. It makes me happy not having to use my phone for this.
- Board replacement for the classic Casio F-91W wristwatch
- More Casio Watch Mods (LCD Colors, Transparent Display, Micro SD, Strap Remover)
- The Sensor Watch
tpm2-totp
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TOTP tokens on my wrist with the smartest dumb watch
You need a TPM 2.0 compatible CPU, but something like this sounds really excellent: https://github.com/tpm2-software/tpm2-totp
This means your laptop itself would be your hardware device, the TOTP secret would be stored in the TPM and theoretically impossible to steal/copy. Of course this means you will probably want a mobile device (possibly a second laptop also) as a backup.)
- Can you detect tampering in /boot without SecureBoot on Linux?
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Authenticated Boot and Disk Encryption on Linux
>But okay, you may extend my attack by saying that you exchange the motherboard between the victim and the attacker laptop, so that you don't need to replicate the chassis.
Modern computers has tamper detection and if you open them you'll need to type the BIOS password.
However, replacing the motherboard is going to replace the TPM. This is easily detectable with something like tpm2_totp in the bootchain.
https://github.com/tpm2-software/tpm2-totp
- Attest computer secure boot state to phone via time-based OTP and TPM
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Does the TPM boost secure boot security?
You could also use TOTP for a kind of remote attestation (e.g., with your phone computing TOTP). In this setup, the CPU sends the timestamp to the TPM, and it returns the TOTP value. So instead of you looking at your phone to give the TOTP to a service provider to prove that you're in possession of your phone, the computer gives you a TOTP value to prove that it's in possession (inside the TPM, sealed to the boot chain hashes) of the TOTP secret, and you use your phone to verify this. A possible weakness (short of a full-blown TPM compromise) would be to send a bunch of forged timestamps to the TPM while your computer is running and store the resulting TOTP values, then tamper with Secure Boot and emit the precomputed TOTP corresponding to the current timestamp whenever you boot up your computer. But this would require running malicious code on your compute while you're logged in with the trusted boot chain.
What are some alternatives?
solo1 - Solo 1 firmware in C
sbctl - :computer: :lock: :key: Secure Boot key manager
ios-application - A native, lightweight and secure one-time-password (OTP) client built for iOS; Raivo OTP!
mortar - Framework to join Linux's physical security bricks.
BangleApps - Bangle.js App Loader (and Apps)
btrfs-todo - An issues only repo to organize our TODO items
google-authenticator - Open source version of Google Authenticator (except the Android app)
heads - A minimal Linux that runs as a coreboot or LinuxBoot ROM payload to provide a secure, flexible boot environment for laptops, workstations and servers.
totp-cli - A cli-based pass-backed TOTP app.
cryptboot - Encrypted boot partition manager with UEFI Secure Boot support
mintotp - Minimal TOTP generator in 20 lines of Python
decrypt-otpauth-files - Decrypt files created by OTP Auth