mirror of
https://github.com/Rain-kl/OpenFlare.git
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ryan
43 lines
1.2 KiB
Go
43 lines
1.2 KiB
Go
/*
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Copyright 2025 linux.do
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Modified by Arctel.net, 2026
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package util
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import (
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"crypto/rand"
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"crypto/sha256"
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"encoding/hex"
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"io"
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"github.com/google/uuid"
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)
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// uniqueIDBytes 生成唯一 ID 所需的随机字节长度
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const uniqueIDBytes = 32
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// GenerateUniqueIDSimple 生成 64 位唯一标识符
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func GenerateUniqueIDSimple() string {
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randomBytes := make([]byte, uniqueIDBytes)
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if _, err := io.ReadFull(rand.Reader, randomBytes); err != nil {
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// 如果随机数生成失败，使用 UUID 作为后备
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uuidBytes := []byte(uuid.NewString())
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hash := sha256.Sum256(uuidBytes)
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copy(randomBytes, hash[:])
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}
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return hex.EncodeToString(randomBytes)
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}
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