shanshanzhong
3d732c0361
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26 lines
633 B
Go
26 lines
633 B
Go
package tool
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import (
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"fmt"
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"strings"
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)
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const deviceHashSalt uint32 = 0x5A3C7E9B
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// DeviceIdToHash encodes a device id to an 8-char uppercase hex string.
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// Algorithm mirrors frontend: id XOR salt → hex.
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// e.g. 1 → "5A3C7E9A", 42 → "5A3C7EA1"
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func DeviceIdToHash(id int64) string {
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return strings.ToUpper(fmt.Sprintf("%08x", uint32(id)^deviceHashSalt))
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}
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// HashToDeviceId decodes an 8-char hex hash back to a device id.
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func HashToDeviceId(hash string) (int64, error) {
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var n uint32
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_, err := fmt.Sscanf(strings.ToLower(hash), "%08x", &n)
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if err != nil {
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return 0, err
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}
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return int64(n ^ deviceHashSalt), nil
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}
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