It doesn't need the secretchannel and needs less computation cost. So it...
它不需要安全传输信道，整个过程所需的计算量小，是高效安全的。
2
After the authentication, SSL will actually use secret key encryption to secure the channel, but the details of that aren't relevant to this discussion.
在身份验证之后，SSL将真正使用保密的密钥加密来保护通道，但其细节与本讨论无关。
3
Mrs Billis and the couple's three grown-up children gave his decision their blessing, and the resulting programme -mummifying Alan: Egypt's last Secret -was screened on Channel 4 last night.