button组件中，获取手机号，发送于后台解密时偶尔失败，在体验与开发环境下无此问题，只有线上正式环境出现过。

错误日志如下：

javax.crypto.BadPaddingException: pad block corrupted

at org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher$BufferedGenericBlockCipher.doFinal(Unknown Source)

at org.bouncycastle.jcajce.provider.symmetric.util.BaseBlockCipher.engineDoFinal(Unknown Source)

at javax.crypto.Cipher.doFinal(Cipher.java:2165)