block, rest := pem.Decode(rootCertBytes)
	var blockBytes []byte

	// Loop while there are no block are found
	for block != nil {
		blockBytes = append(blockBytes, block.Bytes...)
		block, rest = pem.Decode(rest)
	}

	rootCAs, err := x509.ParseCertificates(blockBytes)
	if err != nil {
		spiffeLog.Errorf("parse certificate from rootPEM got error: %v", err)