<html><pre><PRE>Hi leksey Sanin!</PRE><PRE><BR>>As you can see in the descriotion, certificate in this case is used<BR>>only as a public key transport. It does not carry "trust" as in the<BR>>signature key. Thus you have a standard situation: encrypt data<BR>>with public key and decrypt with private. Read tutorial and examples<BR>>on xmlsec web site.</PRE><PRE> I have already read tutorial and examples from your xmlsec site, especially "encrypt3.c"(Encrypting data with a session key). But I think I don't know how to do till now.<BR> In the example of "Encrypting data with a session key" I found it needs only the same key when encrypted and decrypted even if a RSA key. Now my purpose is that I can use public key in the certificate to encrypt and decrypt with corresponding private key elsewhere. But the example don't mentioned about this. Could you be so kind to help me about this asymmetric key to encrypte problem, please?<BR> Thank you!</PRE><PRE> </PRE><PRE><BR>>Aleksey<BR>><BR>><BR>>StackWood wrote:<BR>>> Aleksey Sanin!<BR>>> <BR>>> Thanks for your help first. But now I want to encrypt with asymmetric key. In this case, I can encrypt with "public" key in the certificate that everybody can get easily, and decrypted with his responsible "private" key that only he owned. So we can communicate safety. Can it is feasible I mentioned above? If so that I want to know how to implement with xmlSec. Thank you a lot.<BR>>> <BR>>> <BR>>>><BR>>>>> I need you help because the help of XMLSec document didn't mention this method.<BR>>>><BR>>>>Well, the documentation does not mention this because it is impossible<BR>>>>(hint: certificate has "public" key that everybody knows, if you encrypt<BR>>>>something with "private" key then *anyone* can decrypt it). Probably you<BR>>>>should read a book about cryptography first.<BR>>>><BR>>>>Aleksey<BR>>>><BR>>> <BR>>> <BR>>> <BR>>> StackWood<BR>>> <A href="mailto:stackwood@263.net">stackwood@263.net</A><BR>>> 2004-04-13<BR>>> <BR>></PRE><PRE> <BR> <BR> StackWood<BR> <A href="mailto:stackwood@263.net">stackwood@263.net</A><BR> 2004-04-13<BR></PRE></pre></html>
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