41 lines
729 B
Go
41 lines
729 B
Go
package util
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import (
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crand "crypto/rand"
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mrand "math/rand"
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)
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type src struct{}
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func (s src) Int63() int64 {
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result := make([]byte, 8)
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_, err := crand.Read(result)
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if err != nil {
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panic(err)
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}
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return int64(result[0]&0x7F)<<56 |
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int64(result[1])<<48 |
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int64(result[2])<<40 |
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int64(result[3])<<32 |
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int64(result[4])<<24 |
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int64(result[5])<<16 |
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int64(result[6])<<8 |
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int64(result[7])<<0
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}
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func (s src) Seed(seed int64) {
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// We don't do seeds here.
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}
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var Rand = mrand.New(src{})
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const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+="
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func RandomBase64(n int) string {
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b := make([]byte, n)
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for i := range b {
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b[i] = letterBytes[Rand.Intn(64)]
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}
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return string(b)
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}
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