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22 lines
504 B
Go
22 lines
504 B
Go
package security
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import (
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"crypto/rand"
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)
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// RandomString generates a random string of specified length.
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//
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// The generated string is cryptographically random and matches
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// [A-Za-z0-9]+ (aka. it's transparent to URL-encoding).
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func RandomString(length int) string {
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const alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
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bytes := make([]byte, length)
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rand.Read(bytes)
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for i, b := range bytes {
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bytes[i] = alphabet[b%byte(len(alphabet))]
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}
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return string(bytes)
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}
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