Technical Details

  • Curve: secp256k1 (same as Bitcoin)
  • Hash Algorithm: SHA-256
  • Key Format: DER → Base64 (storage) → DER Buffer (crypto operations)
  • Signature Format: Base64-encoded ECDSA signature in DER format
  • Timestamp Tolerance: 300 seconds (5 minutes)
  • Authorization Prefix: Signature (case-insensitive)