Java RSA3加密时因编码不同导致结果不同

最近遇到一个问题，使用RSA3加密及验证时候，因为我方与客户方工程的编码格式不同，导致我方使用私钥加密后，客户使用公钥解密失败。

最后问题定位到src.getBytes()代码，因我方工程使用GBK编码，src.getBytes()执行时获取默认编码为GBK（即src.getBytes("GBK")），而客户方工程使用UTF-8编码，解密执行src.getBytes()时获取默认编码为UTF-8（即src.getBytes("UTF-8")）。造成解密校验失败。

解决方法：加密时设置UTF-8编码格式—src.getBytes("UTF-8"，如下：

测试（file的默认编码为GBK）：

valueT.getBytes()：

[48, 50, 48, 49, -49, -62, -75, -91, -77, -55, -71, -90, -93, -84, -74, -87, -75, -91, -76, -90, -45, -38, -77, -28, -42, -75, -42, -48, 50, 48, 49, 55, 48, 56, 48, 49, 49, 49, 49, 50, 48, 53, 56, 56, 51, 51, 48, 48, 54, 55, 54, 52, 55, 85, 78, 68, 69, 82, 87, 65, 89, 50, 48, 49, 55, 45, 48, 56, 45, 48, 49, 32, 49, 49, 58, 49, 50, 58, 48, 54]

valueT.getBytes("GBK")：

[48, 50, 48, 49,-49, -62, -75, -91, -77, -55, -71, -90, -93, -84, -74, -87, -75, -91, -76, -90, -45, -38, -77, -28, -42, -75, -42, -48, 50, 48, 49, 55, 48, 56, 48, 49, 49, 49, 49, 50, 48, 53, 56, 56, 51, 51, 48, 48, 54, 55, 54, 52, 55, 85, 78, 68, 69, 82, 87, 65, 89, 50, 48, 49, 55, 45, 48, 56, 45, 48, 49, 32, 49, 49, 58, 49, 50, 58, 48, 54]

valueT.getBytes("UTF-8")：

[48, 50, 48, 49,-28, -72, -117, -27, -115, -107, -26, -120, -112, -27, -118, -97, -17, -68, -116, -24, -82, -94, -27, -115, -107, -27, -92, -124, -28, -70, -114, -27, -123, -123, -27, -128, -68, -28, -72, -83, 50, 48, 49, 55, 48, 56, 48, 49, 49, 49, 49, 50, 48, 53, 56, 56, 51, 51, 48, 48, 54, 55, 54, 52, 55, 85, 78, 68, 69, 82, 87, 65, 89, 50, 48, 49, 55, 45, 48, 56, 45, 48, 49, 32, 49, 49, 58, 49, 50, 58, 48, 54]