31 lines
744 B
Go
31 lines
744 B
Go
package ws
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import (
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"crypto/ed25519"
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"crypto/rand"
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"encoding/hex"
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"os"
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"path/filepath"
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)
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// LoadOrCreateServerKey 加载/生成服务器 Ed25519 密钥（hex 文件）
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func LoadOrCreateServerKey(path string) (ed25519.PrivateKey, error) {
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if raw, err := os.ReadFile(path); err == nil {
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seed, err := hex.DecodeString(string(raw))
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if err == nil && len(seed) == ed25519.SeedSize {
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return ed25519.NewKeyFromSeed(seed), nil
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}
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}
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_, priv, err := ed25519.GenerateKey(rand.Reader)
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if err != nil {
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return nil, err
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}
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if err = os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
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return nil, err
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}
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if err = os.WriteFile(path, []byte(hex.EncodeToString(priv.Seed())), 0o600); err != nil {
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return nil, err
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}
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return priv, nil
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}
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