package vn.sis.appointment;

import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.HexFormat;

final class Hashes {
    private Hashes() {
    }

    static String sha256(String value) {
        try {
            byte[] digest = MessageDigest.getInstance("SHA-256")
                    .digest(value.getBytes(StandardCharsets.UTF_8));
            return HexFormat.of().formatHex(digest);
        } catch (NoSuchAlgorithmException ex) {
            throw new IllegalStateException("JDK khong ho tro SHA-256.", ex);
        }
    }
}