# Research: Deribit, Coinglass API/Privacy-Oasis, Secret, Aztec
- [[Security Specific Chain]]
- Current Privacy Solutions
- Coin mixers
- Confidential transactions/Pedersen commitments
- Ring signatures
- Zero-knowledge proofs
- Secret Network
- Every smart contract is run by a node in TEE, meaning every step in encrypt in TEE then the Smart Contract runs with encrypted data.
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- Cons - Everything is encrypted even to owner itself, creates bad UX
- Solution: Two Keys - Viewing keys, Private Key
- Allowing users to create and share these passwords with third-party applications, **viewing keys highlight the quality of access control provided to users on Secret Network**
- Cons - Increase Tx Counts Significantly,
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- Solutions: Query permits
- https://scrt.network/blog/programmable-privacy/
- https://zhuanlan.zhihu.com/p/422305255
- https://www.youtube.com/watch?v=OGP4VQal1KI
- https://medium.com/@secretnetwork/secret-network-access-control-viewing-keys-vs-permits-97baad539e72
- Oasis Network
- Should be the same as Secret Network
- Encrypted is optional in Cipher ParaTime
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- Emerald Para Time - EVM
- Parcel Para Time
- Cipher Para Time
- https://mirror.xyz/0x4a264b46F00739075FA2c337dA3c8a2E8E02deeB/YohRd0ZYEYed90AgYYsi2QmOW1Iz0U7A9KiIm8p1DXs
- [[Deribit API System]]
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- AWS Lambda
- 1M Request - 0.02 USD with 1Gb Ram
- 17200 Request/Day, 516,000 Request/Month
- Free Tier, 1M Request
- Should be in Free Tier
- AWS DynamoDB
- 1 Data is 4Kb, 2Gb/Month
- Free Tier, 25Gb
- Should be in Free Tier for 2 Years
- AWS Cloudwatch
- Free Tier, 10 Alert
- Should be in Free Tier