Module credential 

Binance API credential handling and request signing.

This module provides two types of credentials:

• Credential: HMAC SHA256 signing for REST API and standard WebSocket
• Ed25519Credential: Ed25519 signing for WebSocket API and SBE streams

Ed25519 keys are required. Credentials are resolved from standard environment variables (BINANCE_API_KEY/BINANCE_API_SECRET), falling back to deprecated *_ED25519_* variables with a warning.

Structs

Credential

Binance API credentials for signing requests (HMAC SHA256).

Ed25519Credential

Binance Ed25519 credentials for WebSocket API authentication.

Enums

Ed25519CredentialError

Error type for Ed25519 credential creation.

Functions

resolve_credentials

Resolves API credentials from config or environment variables.