paramKey
密钥A的密文；密钥A为接入端随机生成字符串，长度为16位；paramKey = RSA1024("${密钥A}", "${天翼账号平台公钥}")；填充模式为RSA/ECB/PKCS1Padding；下载电信RSA公钥。
paramKey=1D7C25EB8B0B8B4CB3CF8DC60628F6549********786B0AF1FEF93FA1335057A35BF5F0B39A3867EAA9BE14B3898********8B01DE34965060445B6E1F66401D714650E4AB161CD6DCF4A72********3B856F22A192B8B0C39D7A55B961062E68C89C928894F119B25********7C548355FE9DB82852EB93C939F2200B48CD17