stash/pkg/hash/key.go

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779 B
Go
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// Package hash provides utility functions for generating hashes from strings and random keys.
package hash
import (
"crypto/rand"
"fmt"
"hash/fnv"
)
// GenerateRandomKey generates a random string of length l.
// It returns an empty string and an error if an error occurs while generating a random number.
func GenerateRandomKey(l int) (string, error) {
b := make([]byte, l)
if _, err := rand.Read(b); err != nil {
return "", err
}
return fmt.Sprintf("%x", b), nil
}
// IntFromString generates a uint64 from a string.
// Values returned by this function are guaranteed to be the same for equal strings.
// They are not guaranteed to be unique for different strings.
func IntFromString(str string) uint64 {
h := fnv.New64a()
h.Write([]byte(str))
return h.Sum64()
}