INNER CODE UNIT · Go

getRegisterMac

matrix-org/dendrite · cmd/create-account/main.go:190

func getRegisterMac(sharedSecret, nonce, localpart, password, adminStr string) (string, error) {
	joined := strings.Join([]string{nonce, localpart, password, adminStr}, "\x00")
	mac := hmac.New(sha1.New, []byte(sharedSecret))
	_, err := mac.Write([]byte(joined))
	if err != nil {
		return "", fmt.Errorf("unable to construct mac: %w", err)
	}
	regMac := mac.Sum(nil)

	return hex.EncodeToString(regMac), nil
}

func getPassword(password, pwdFile string, pwdStdin bool, r io.Reader) (string, error) {
	// read password from file
	if pwdFile != "" {
		pw, err := os.ReadFile(pwdFile)
		if err != nil {
			return "", fmt.Errorf("Unable to read password from file: %v", err)

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