Which of these is the best way to provide sender non-repudiation？（）
- A pre-sharedkey
- B secure hash
- C SSL
- D RSA signature
问题
Which of these is
参考解析：
分类：CCIE(350-018)题库
搜答案，更轻松！
Which of these is the best way to provide sender non-repudiation？（）