Account
Every DeltaDeFi account is composed of 2 keys, the master key and the operation key. When you use your Cardano wallet to connect to DeltaDeFi, your wallet is the golden source of truth for your account. Once you have created an account, an operation key will be generated. Here is the difference between the two:
Where it comes from
Your Cardano wallet
Generated
Actions it can authorize
All, including rotation of trade key
The master key owner can define the access right. In current design, it is by default only in app actions like placing order. Withdrawal is not allowed with this key
Information DeltaDeFi controls
The public key hash
The public key hash and the encrypted key by user defined password with AES-GCM algorithm
Value held by the key
The key holds all value as it is your Cardano wallet
The key holds exactly empty value except user send funds to it outside of DeltaDeFi
Signing transactions
Like how you perform signing anywhere else
Use API Key to obtain the encrypted key decrypt it for programmatic signing
When you first sign in DeltaDeFi and create an account, an operation key is generated on the client side and encrypted with your provided password. The encrypted operation key with public key hash information will be sent to DeltaDeFi's server to complete the account opening process.
After that, all the signatures needed for trading could then be obtained programmatically to enable a seamless user experience.
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