mirror of
https://github.com/luxfi/crypto.git
synced 2026-07-27 01:54:50 +00:00
Zach Kelling
6fe11f3e77
- Remove cache/ and utils/ directories (originally copied from luxfi/node) - Update secp256k1 imports to use github.com/luxfi/cache/lru - Update sig_fuzz_test.go to use local crypto/hashing instead of node/utils - Clean up go.mod: remove unused node/geth dependencies - crypto package is now fully standalone
45 lines
1.1 KiB
Go
45 lines
1.1 KiB
Go
// Copyright (C) 2020-2025, Lux Industries Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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package secp256k1
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import (
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"github.com/luxfi/cache/lru"
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)
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// RecoverCacheType provides a cache for public key recovery with methods
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type RecoverCacheType struct {
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cache *lru.Cache[string, *PublicKey]
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}
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// NewRecoverCache creates a new recover cache
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func NewRecoverCache(size int) RecoverCacheType {
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return RecoverCacheType{
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cache: lru.NewCache[string, *PublicKey](size),
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}
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}
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// RecoverPublicKey recovers a public key from a message and signature
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func (r RecoverCacheType) RecoverPublicKey(msg, sig []byte) (*PublicKey, error) {
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return RecoverPublicKey(msg, sig)
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}
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// RecoverPublicKeyFromHash recovers a public key from a hash and signature
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func (r RecoverCacheType) RecoverPublicKeyFromHash(hash, sig []byte) (*PublicKey, error) {
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// Check cache first
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cacheKey := string(hash) + string(sig)
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if cached, found := r.cache.Get(cacheKey); found {
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return cached, nil
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}
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// Recover the public key
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pk, err := RecoverPublicKeyFromHash(hash, sig)
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if err != nil {
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return nil, err
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}
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// Cache the result
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r.cache.Put(cacheKey, pk)
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return pk, nil
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}
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