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krypton-ios
Discontinued DEPRECATED Krypton turns your iOS device into a WebAuthn/U2F Authenticator: strong, unphishable 2FA.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Using your SIM card for MFA when logging in to an SSH server (through paid API requests to a third party)
There are ways to use your phone's secure storage capabilities for key storage. I've dabbled with using Krypt.co [1] for this, though that's sadly been deprecated and will at some point be replaced by a paid-for cloud service from Akamai. I'm sure there are other options available as well.
A far superior method for SSH security would be a physical U2F key or even a smart card. It's also possible to set up TOTP as a second factor ([2], works with any TOTP solution, not just Google Authenticator). I don't see a need for this paid-for third party service unless you're already using their services for some kind of verification mechanism.
[1]: https://krypt.co/
[2]: https://github.com/google/google-authenticator-libpam
Using your SIM card for MFA when logging in to an SSH server (through paid API requests to a third party)
There are ways to use your phone's secure storage capabilities for key storage. I've dabbled with using Krypt.co [1] for this, though that's sadly been deprecated and will at some point be replaced by a paid-for cloud service from Akamai. I'm sure there are other options available as well.
A far superior method for SSH security would be a physical U2F key or even a smart card. It's also possible to set up TOTP as a second factor ([2], works with any TOTP solution, not just Google Authenticator). I don't see a need for this paid-for third party service unless you're already using their services for some kind of verification mechanism.
[1]: https://krypt.co/
[2]: https://github.com/google/google-authenticator-libpam