45 lines
990 B
Go
45 lines
990 B
Go
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package wtmock
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import (
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"sync"
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"github.com/btcsuite/btcd/btcec"
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"github.com/lightningnetwork/lnd/keychain"
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)
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// SecretKeyRing is a mock, in-memory implementation for deriving private keys.
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type SecretKeyRing struct {
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mu sync.Mutex
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keys map[keychain.KeyLocator]*btcec.PrivateKey
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}
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// NewSecretKeyRing creates a new mock SecretKeyRing.
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func NewSecretKeyRing() *SecretKeyRing {
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return &SecretKeyRing{
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keys: make(map[keychain.KeyLocator]*btcec.PrivateKey),
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}
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}
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// DerivePrivKey derives the private key for a given key descriptor. If
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// this method is called twice with the same argument, it will return the same
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// private key.
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func (m *SecretKeyRing) DerivePrivKey(
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desc keychain.KeyDescriptor) (*btcec.PrivateKey, error) {
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m.mu.Lock()
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defer m.mu.Unlock()
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if key, ok := m.keys[desc.KeyLocator]; ok {
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return key, nil
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}
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privKey, err := btcec.NewPrivateKey(btcec.S256())
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if err != nil {
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return nil, err
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}
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m.keys[desc.KeyLocator] = privKey
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return privKey, nil
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}
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