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78 lines
1.7 KiB
Go
78 lines
1.7 KiB
Go
package sign
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import (
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"crypto/ed25519"
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"fmt"
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"sync"
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"time"
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)
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// KeyEntry 密钥条目
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type KeyEntry struct {
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ID string // 密钥 ID
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PublicKey string // Base64 编码的公钥
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ValidFrom time.Time // 生效时间
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RevokedAt time.Time // 吊销时间(零值表示未吊销)
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}
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// 官方公钥列表(支持密钥轮换)
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var officialKeys = []KeyEntry{
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{
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ID: "official-v1",
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PublicKey: "0A0xRthj0wgPg8X8GJZ6/EnNpAUw5v7O//XLty+P5Yw=",
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ValidFrom: time.Date(2025, 1, 1, 0, 0, 0, 0, time.UTC),
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},
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// 添加新密钥时,在此处追加
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}
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var (
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keyCache map[string]ed25519.PublicKey
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keyCacheOnce sync.Once
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)
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// initKeyCache 初始化密钥缓存
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func initKeyCache() {
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keyCache = make(map[string]ed25519.PublicKey)
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for _, entry := range officialKeys {
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if pub, err := DecodePublicKey(entry.PublicKey); err == nil {
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keyCache[entry.ID] = pub
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}
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}
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}
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// GetOfficialPublicKey 获取默认官方公钥(兼容旧接口)
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func GetOfficialPublicKey() (ed25519.PublicKey, error) {
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return GetPublicKeyByID("official-v1")
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}
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// GetPublicKeyByID 根据 ID 获取公钥
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func GetPublicKeyByID(keyID string) (ed25519.PublicKey, error) {
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keyCacheOnce.Do(initKeyCache)
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pub, ok := keyCache[keyID]
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if !ok {
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return nil, fmt.Errorf("unknown key ID: %s", keyID)
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}
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return pub, nil
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}
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// IsKeyRevoked 检查密钥是否已吊销
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func IsKeyRevoked(keyID string) bool {
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for _, entry := range officialKeys {
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if entry.ID == keyID {
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return !entry.RevokedAt.IsZero()
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}
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}
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return true // 未知密钥视为已吊销
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}
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// GetKeyEntry 获取密钥条目
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func GetKeyEntry(keyID string) *KeyEntry {
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for i := range officialKeys {
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if officialKeys[i].ID == keyID {
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return &officialKeys[i]
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}
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}
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return nil
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}
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