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44 lines
1.0 KiB
44 lines
1.0 KiB
package keys
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import (
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"crypto/rand"
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"encoding/base64"
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)
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var alphaNumericTable = []byte("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ")
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var alphaNumericTableFull = []byte("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789")
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func GetRandomAlphaNumeric(size int) ([]byte, error) {
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alpha := make([]byte, size)
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_, err := rand.Read(alpha)
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if err != nil {
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return nil, err
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}
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for i := 0; i < size; i++ {
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alpha[i] = alphaNumericTable[alpha[i]%byte(len(alphaNumericTable))]
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}
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return alpha, nil
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}
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func GetRandomAlphaNumericFull(size int) ([]byte, error) {
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alphaFull := make([]byte, size)
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_, err := rand.Read(alphaFull)
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if err != nil {
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return nil, err
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}
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for i := 0; i < size; i++ {
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alphaFull[i] = alphaNumericTableFull[alphaFull[i]%byte(len(alphaNumericTableFull))]
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}
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return alphaFull, nil
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}
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func GetRandomBase64(size int) ([]byte, error) {
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rb := make([]byte, size)
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_, err := rand.Read(rb)
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if err != nil {
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return nil, err
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}
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dest := base64.StdEncoding.EncodeToString(rb)
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return []byte(dest), nil
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}
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