Thoughts on Trezor Safe 5 and Ledger Flex:
I like the UX improvements on both devices.
Nice improvements to Trezor's security model with Safe 3 and Safe 5. The addition of a secure element mitigates the old physical seed extraction vulnerability. Also, the chip in the Safe 5 mitigates glitching attacks and has additional anti-tamper features.
Safe 5 screen is slick and touchscreen + haptic feedback work exactly as I'd expect.
Ledger flex e-ink screen is also nice and I really hope the longevity of it is better than what we saw on Nano S devices with many experiencing screen failure after a few years.
On the complex bitcoin transaction signing performance side, Safe 5 is the fastest Trezor yet and is only exceeded by BitBox02.
Ledger, on the other hand, is looking to have worse signing performance than the Nano S Plus. SAD!
Props to both Ledger and Trezor for shipping new hardware that is compatible with existing APIs and SDKs. As a result, these devices were automatically usable with Casa's software!
Jameson Lopp
npub17u…wt4tp
2024-10-10 14:56:53
Author Public Key
npub17u5dneh8qjp43ecfxr6u5e9sjamsmxyuekrg2nlxrrk6nj9rsyrqywt4tpPublished at
2024-10-10 14:56:53Event JSON
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"content": "Thoughts on Trezor Safe 5 and Ledger Flex:\n\nI like the UX improvements on both devices.\n\nNice improvements to Trezor's security model with Safe 3 and Safe 5. The addition of a secure element mitigates the old physical seed extraction vulnerability. Also, the chip in the Safe 5 mitigates glitching attacks and has additional anti-tamper features.\n\nSafe 5 screen is slick and touchscreen + haptic feedback work exactly as I'd expect.\n\nLedger flex e-ink screen is also nice and I really hope the longevity of it is better than what we saw on Nano S devices with many experiencing screen failure after a few years.\n\nOn the complex bitcoin transaction signing performance side, Safe 5 is the fastest Trezor yet and is only exceeded by BitBox02.\n\nLedger, on the other hand, is looking to have worse signing performance than the Nano S Plus. SAD!\n\nProps to both Ledger and Trezor for shipping new hardware that is compatible with existing APIs and SDKs. As a result, these devices were automatically usable with Casa's software!",
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