40 lignes
939 B
Go
40 lignes
939 B
Go
package crypto
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import (
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"crypto/md5"
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"crypto/rand"
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"fmt"
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"io"
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"strings"
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)
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// GenerateMD5Hash : Generate a md5 hash from a string
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func GenerateMD5Hash(str string) (string, error) {
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str = strings.ToLower(strings.TrimSpace(str))
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hash := md5.New()
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_, err := hash.Write([]byte(str))
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if err != nil {
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return "", err
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}
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return fmt.Sprintf("%x", hash.Sum(nil)), nil
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}
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// GenerateRandomToken16 : Generates a random token 16bits long
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func GenerateRandomToken16() (string, error) {
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return GenerateRandomToken(16)
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}
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// GenerateRandomToken32 : Generates a random token 32bits long
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func GenerateRandomToken32() (string, error) {
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return GenerateRandomToken(32)
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}
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// GenerateRandomToken : Generates a random token int n long
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func GenerateRandomToken(n int) (string, error) {
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token := make([]byte, n)
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_, err := io.ReadFull(rand.Reader, token)
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// %x base 16, lower-case, two characters per byte
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return fmt.Sprintf("%x", token), err
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}
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