auth/com.midnight.kuira.core.auth/PlaintextSeed

PlaintextSeed

class PlaintextSeed(val mnemonicEntropy: ByteArray, val bip39Seed: ByteArray)

Wallet seed material decrypted into memory.

Security: The caller MUST wipe both arrays as soon as possible (see PlaintextSeed.wipe). The arrays hold the wallet's signing secret — keeping them in memory longer than necessary is a security risk.

Constructors

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constructor(mnemonicEntropy: ByteArray, bip39Seed: ByteArray)

Types

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object Companion

Properties

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val bip39Seed: ByteArray

64-byte BIP-39 seed derived from the mnemonic via PBKDF2. Used directly for BIP-32 key derivation — skips PBKDF2 on every signing.

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val mnemonicEntropy: ByteArray

32-byte BIP-39 entropy (for a 24-word mnemonic). Used to reconstruct the human-readable phrase when the user requests it.

Functions

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fun wipe()

Overwrites both byte arrays with zeros. Call this immediately after deriving keys and signing — JVM may not guarantee the wipe is effective (see security notes in plan), but it reduces the window of exposure.