79 lines
2.5 KiB
Kotlin
79 lines
2.5 KiB
Kotlin
package cash.z.ecc.android.sdk.internal.jni
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import cash.z.ecc.android.sdk.internal.Derivation
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import cash.z.ecc.android.sdk.internal.model.JniUnifiedSpendingKey
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class RustDerivationTool private constructor() : Derivation {
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override fun deriveUnifiedFullViewingKeys(
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seed: ByteArray,
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networkId: Int,
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numberOfAccounts: Int
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): Array<String> =
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deriveUnifiedFullViewingKeysFromSeed(seed, numberOfAccounts, networkId = networkId)
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override fun deriveUnifiedFullViewingKey(
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usk: JniUnifiedSpendingKey,
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networkId: Int
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): String =
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deriveUnifiedFullViewingKey(usk.bytes, networkId = networkId)
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override fun deriveUnifiedSpendingKey(
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seed: ByteArray,
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networkId: Int,
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accountIndex: Int
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): JniUnifiedSpendingKey = deriveSpendingKey(seed, accountIndex, networkId = networkId)
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override fun deriveUnifiedAddress(seed: ByteArray, networkId: Int, accountIndex: Int): String =
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deriveUnifiedAddressFromSeed(seed, accountIndex = accountIndex, networkId = networkId)
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/**
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* Given a Unified Full Viewing Key string, return the associated Unified Address.
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*
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* @param viewingKey the viewing key to use for deriving the address. The viewing key is tied to
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* a specific account so no account index is required.
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*
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* @return the address that corresponds to the viewing key.
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*/
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override fun deriveUnifiedAddress(
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viewingKey: String,
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networkId: Int
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): String =
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deriveUnifiedAddressFromViewingKey(viewingKey, networkId = networkId)
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companion object {
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suspend fun new(): Derivation {
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RustBackend.loadLibrary()
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return RustDerivationTool()
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}
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@JvmStatic
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private external fun deriveSpendingKey(
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seed: ByteArray,
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account: Int,
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networkId: Int
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): JniUnifiedSpendingKey
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@JvmStatic
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private external fun deriveUnifiedFullViewingKeysFromSeed(
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seed: ByteArray,
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numberOfAccounts: Int,
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networkId: Int
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): Array<String>
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@JvmStatic
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private external fun deriveUnifiedFullViewingKey(usk: ByteArray, networkId: Int): String
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@JvmStatic
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private external fun deriveUnifiedAddressFromSeed(
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seed: ByteArray,
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accountIndex: Int,
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networkId: Int
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): String
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@JvmStatic
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private external fun deriveUnifiedAddressFromViewingKey(key: String, networkId: Int): String
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}
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}
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