Rahi_Crypto_AI

Dans le monde en constante évolution de la cryptomonnaie, les utilisateurs rencontrent de plus en plus de jetons spam—des actifs numériques sans valeur réelle, souvent distribués par le biais de distributions airdrop malveillantes. Ces jetons ne sont pas des investissements légitimes ; au contraire, ils sont couramment utilisés comme outils pour tromper les utilisateurs et les exposer à des arnaques, des attaques d'hameçonnage et des pertes financières.
Qu'est-ce que les jetons spam ?
Les jetons spam sont des cryptomonnaies qui apparaissent dans les portefeuilles des utilisateurs sans avoir été demandés ni achetés. Ils ont souvent :

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Questions & Answers :-
1) What is the definition of "offchain computing"?
ANS :- Computation performed offchain, with results verified on-chain.

2) "Centralization concerns" and "Challenge periods" are "Cons" for which technology?
ANS :- Layer 2 scaling (rollups)

3) Which of the following is listed as a component of a coprocessor’s general architecture?
ANS :- Relay Contracts

4) How do we distinguish coprocessors from rollups?
ANS :- Rollups are described as sandboxed and "blockchain-esque," while coprocessors are compared to flexible VMs with attestations.

5) What "missing piece" in data protection does Confidential Computing address that Traditional Encryption leaves "Vulnerable"?
ANS :- Data "In Use"

6)What is the only primary "con" or disadvantage listed for TEE (Trusted Execution Environment) Coprocessors?
ANS :- Hardware vendor trust dependency

7) What is the primary goal of remote attestations?
ANS :- To verify that an attestation is valid, recent, and from a real enclave running a specific image.

8) Which TEE type is characterized by having "no persistent storage, external networking, or interactive access"?
ANS :- AWS Nitro Enclaves

9) According to the project overview, what is the primary reason for using Marlin's Oyster TEE coprocessors?
ANS :- To host verifiable AI (Llama 3.2) because blockchains cannot run AI and traditional APIs cannot be trusted.

10) What components are used to verify the TEE deployed AI's response onchain, as shown in the "Enclave Verification Data"?
ANS :- The "Oyster Signature" and the "Enclave Public Key".

11) According to the document, which computing model is characterized as "ephemeral," "stateless," and "event-driven"?
ANS :- Serverless Computing

12) Which of the following is listed as a "con" of using Confidential Virtual Machines (CVMs)?
ANS :- Upfront lease cost and longer cold start

13) What is the primary networking challenge associated with AWS Nitro Enclaves, and how does Oyster solve it?
ANS :- They only support vsock networking, so Oyster provides a simple IP interface to hide this complexity.

14)Which of the following is included in the checklist for verifying a decoded attestation document?
ANS :- Verify that the certificate chain's root is the AWS Nitro Enclaves Root certificate.

15)According to the document, what is the fundamental purpose of a Key Management System (KMS)?
ANS :- The lifecycle management of cryptographic keys, including their generation, storage, distribution, and rotation.

16) What is the core architectural difference between the Nautilus "Root Server" and "Derive Server"?
ANS :- The Root Server derives public keys (publicly), while the Derive Server derives private keys (inside the enclave).

17) Which of the following is listed as a key property of persistent storage in a TEE?
ANS :- Data persists across the enclave lifecycle and is cryptographically protected.

18) Which of the following is not a characteristic of "Contract-Based Persistent Storage"?
ANS :- It is a simple but rigid approach where the same code results in the same persistent keys.

19) What is the "Key Concept" of reproducible builds as defined in the document?
ANS :- Same source code + Same build environment = Identical binary output.

20) According to the document, what is the "gap" that Remote Attestation alone cannot solve, which reproducible builds address?
ANS :- Remote attestation verifies the binary (EIF) is running, but it doesn't prove what source code was used to create that binary.

21) What is the purpose of using npx pkg -t node18-alpine app.js in Step 2?
ANS :- To create a self-contained binary that runs without installing nodejs inside the enclave.

22) In Step 5, how is the deployed NodeJS server interacted with, and what is the expected response?
ANS :- By running curl <ip>:4000, expecting "Hello from Oyster Enclave!".

23) What is the primary security benefit of this decentralized frontend approach?
ANS :- It ensures that only enclaves running authorized images can request certificates for the domain, preventing tampering.

24) After fetching the subdomain, we have a waiting period of 4-5 minutes. What is happening during this time?
ANS :- The enclave is updating the DNS records.

25) In Step 3, what is the purpose of the --init-params ".env:1:1:file:./.env" flag in the oyster-cvm deploy command?
ANS :- To pass the environment variables file into the enclave during deployment.

26) How does a user interact with the deployed AI agent, according to Step 4?
ANS :- By running nc <Enclave_IP> 8080 and entering a prompt.

27) According to the "About the App" section, what is the primary role of the Marlin Oyster CVM enclave in this ZK-proof application?
ANS :- To secure the user's private inputs (age, BMI) so they cannot be leaked.

28) After deploying the server to a Marlin Oyster CVM, what command is used to perform a remote attestation to verify the enclave itself?
ANS :- oyster-cvm verify --enclave-ip <ip>

29) Where does the user go to deploy the minified JavaScript function for the Marlin Oyster Serverless service?
ANS :- They navigate to https://hub.marlin.org/oyster/serverless-sandbox/.

30) How is the deployed Marlin Oyster serverless function linked to the EthRate.sol smart contract before deployment?
ANS :- The "transaction hash" (codeHash) from the serverless deployment is added to the script/deploy/EthRate.ts file.

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