package sha256sum
import (
"crypto/sha256"
"encoding/hex"
"io"
"os"
)
func File(path string) (string, error) {
f, err := os.Open(path)
if err != nil {
return "", err
}
defer f.Close()
h := sha256.New()
if _, err := io.Copy(h, f); err != nil {
return "", err
}
return hex.EncodeToString(h.Sum(nil)), nil
}
func Hex(b []byte) string {
sum := sha256.Sum256(b)
return hex.EncodeToString(sum[:])
}