identity/com.midnight.kuira.core.identity.accesskey/AccessKeyManager

AccessKeyManager

class AccessKeyManager(hdWallet: HDWallet, accountIndex: Int = DEFAULT_ACCOUNT_INDEX)

Manages secp256k1 access keys derived from the HD wallet.

Access keys are the bridge between P-256 passkeys and Midnight's secp256k1 signing. The passkey can't sign Midnight transactions (wrong curve), so the access key does it. The passkey authorizes the access key via KeyAuthorization.

Derivation path: m/44'/2400'/account'/5/index

  • Role 5 = IDENTITY (Kuira-specific, beyond the standard Midnight roles 0-4)

  • Index 0 = default access key

  • Index 1+ = per-dApp access keys (future)

Because the key is HD-derived, it's deterministically recoverable from the seed — no separate backup needed for the access key itself.

Constructors

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constructor(hdWallet: HDWallet, accountIndex: Int = DEFAULT_ACCOUNT_INDEX)

Types

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object Companion

Functions

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fun deriveAccessKeyAt(index: Int): DerivedKey

Derives an access key at a specific index.

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fun deriveDefaultAccessKey(): DerivedKey

Derives the default access key at index 0.