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28 lines
639 B
28 lines
639 B
package generate
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import (
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"crypto/rand"
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"encoding/binary"
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"encoding/hex"
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"strings"
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"time"
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)
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// ID generates a 24 character hex string from 8 bytes of current time
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// in ns and 4 bytes of crypto-random. In practical terms, that makes
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// them orderable.
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func ID() string {
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bytes := make([]byte, 12)
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binary.BigEndian.PutUint64(bytes, uint64(time.Now().UnixNano()))
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rand.Read(bytes[8:])
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return strings.ToLower(hex.EncodeToString(bytes))
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}
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// SessionID generates a 48 character hex string with crypto/rand
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func SessionID() string {
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bytes := make([]byte, 24)
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rand.Read(bytes)
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return strings.ToLower(hex.EncodeToString(bytes))
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}
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