34 lines
1.5 KiB
Markdown
34 lines
1.5 KiB
Markdown
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## Certified Node
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A Certified Node is a node which comes BIOS locked and does not allow the owner change how the node boots.
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This makes it impossible for the node owner to make changes to the operating system and secure that the node will run the right certified version of Zero-OS.
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The Titan V2.1 node is a certified node. Certified nodes are eligible for more [farming rewards](farming_reward).
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### Requirements
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- Node delivered by a certified hardware vendor or through the ThreeFold website.
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- The farmer who owns a certified node will have to sign specifically created terms and conditions
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- not done yet, will be part of tfgrid 3.0 launch, see [here](farming_certification_terms_conditions).
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- For 2.0 Farmers who started in 2020 or before: agreement about vesting see [vesting_overview](vesting_overview).
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### More Info
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- [Certified Farming](certified_farming)
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### More Technical Details
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- The BIOS gets locked.
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- The BIOS gets configured to use TPM2
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- more info about tpm2 [here](https://www.usenix.org/system/files/conference/usenixsecurity16/sec16_paper_raj.pdf).
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- TPM2 is a security implementation on the motherboard which allows Zero-OS to securely store private keys, this mechanism is used to identify Zero-OS nodes and make sure they are registered as certified node.
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- If a user would reset the BIOS then the TPM private keys are gone as well.
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- Starting with our TFGrid 3.0 we will use this TPM feature to verify and validate some checks done from tfchain.
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- A certified farmer is required to use certified_nodes.
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