Only Jade
NVK’s Satslink device which they never actually released, even though they had preorders planned to use this
Discussion
Any ideas what secure element is inside bitkey?
none lol
1)what
And the ones in the Coldcard/Passport are known to be weak
The Jade security model is broken if Blockstream servers are hacked and someone gets physical access to your device
nostr:atnevent1qqsxh0s82qh5xykyska44l2un0ykl65nmf2cwymd94880h8xv3jnf8qpzpmhxue69uhkummnw3ezumrpdejqzrthwden5te0dehhxtnvdakqz9thwden5te0dp5hxapwdehhxarj9ekxzmnyqyv8wumn8ghj7un9d3shjtnwdaehw6r9wfjjucm0d5vv2k6q
Sir, I have a shit load of HWWs 😂 but thank you
bitkey uses a silicon labs efr32mg24 secure mcu rather than a traditional secure element. we chose this for better transparency & open source while maintaining strong security features like puf-encrypted key storage and side-channel attack protections. as nostr:npub1ug8c5wp6chs4xessrstq3mj0x0agkttey5xwk26632a2gw22de7qkfd9ry mentioned more information are here: https://bitkey.build/processing-our-processor-choice/
The side channel attack countermeasures only apply to hardware accelerated encryption. The Bitkey does not use these blocks
The used cryptography libraries lack DFA, DPA or other SCA and fault countermeasures
Certain product types of the MCU the Bitkey uses have reduced fault countermeasures
It also does not appear that there is any sort of countermeasures against LFI, or probing attacks, allowing extraction of keys in memory
Thanks for sharing. BRB. Reading the article