minio/pkg/utils/crypto/keys/keys.go

63 lines
1.2 KiB
Go

package keys
import (
"crypto/rand"
)
var alphaNumericTable = []byte("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ")
var alphaNumericTableFull = []byte("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789")
func GetRandomAlphaNumeric(size int) ([]byte, error) {
alpha := make([]byte, size)
_, err := rand.Read(alpha)
if err != nil {
return nil, err
}
for i := 0; i < size; i++ {
alpha[i] = alphaNumericTable[alpha[i]%byte(len(alphaNumericTable))]
}
return alpha, nil
}
func GetRandomAlphaNumericFull(size int) ([]byte, error) {
alphaFull := make([]byte, size)
_, err := rand.Read(alphaFull)
if err != nil {
return nil, err
}
for i := 0; i < size; i++ {
alphaFull[i] = alphaNumericTableFull[alphaFull[i]%byte(len(alphaNumericTableFull))]
}
return alphaFull, nil
}
func GetRandomBase64(size int) ([]byte, error) {
rb := make([]byte, size)
n, err := rand.Read(rb)
if err != nil {
return nil, err
}
dest := make([]byte, n)
base64.URLEncoding.EncodeTo(dest, rb)
return dest, nil
}
func ValidateAccessKey(key []byte) bool {
for _, char := range key {
if isalnum(char) {
continue
}
switch char {
case '-':
case '.':
case '_':
case '~':
continue
default:
return false
}
}
return true
}