关于android4.1版本以上不支持支付宝的问题

在下面语句加一个参数"BC"

PKCS8EncodedKeySpec privSpec = new PKCS8EncodedKeySpec(s_privateKeyIn1t);KeyFactory keyFactory = KeyFactory.getInstance("RSA", "BC");PrivateKey privateKey = keyFactory.generatePrivate(privSpec);