473,626 Members | 3,675 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

S/MIME ! (Decryption) Gurus Help Me, plz

Hi folks !
I am working on an application in dotnet 2.0; receiving a smime message
which reads something like
=============== =============== ==========
MIME-Version: 1.0
Content-type: application/x-pkcs7-mime; smime-type=enveloped-data;
name="smime.p7m "
Content-Transfer-Encoding: base64
MIIcdsfefej [.....] (lots of chars)
=============== =============== ==========

What can i programatically do with the lot of chars, to get to the
original message ? I know in the content is the simmetric key of the
DES3 algorithm but it is encrypted with my public message, so i need to
decrypt it with my private and apply the des3.
but i do not how to do it !!?!!?
i know only the theory so far
but how to achieve this using C# is a mistery

best regards, thanks in advance

Michel Gallant, help me out in this one :D

Jul 13 '06 #1
0 971

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

1
2419
by: D. Alvarado | last post by:
On my Fedora Core 2 Linux dev box, I have installed mcrypt and compiled PHP with the --with-mcrypt option. I am concerned that when I move to another hosting enviornment mcrypt will not be supported. In people's experiences, have hosting companies supporting PHP/MySQL generally provided support for mcrypt? Does anyone recommend another module for encryption/decryption that accompanies the PHP package? Thanks, - Dave
1
2463
by: Jase H | last post by:
Hello, I have a ASP.NET web application problem involving the data encryption and decryption assembly(DLL) used on the connection string value that is set in the webconfig file. The problem occurs in the application when you instantiate a new instance of the class as shown below: ---Dim dp As DPAPIComp.DataProtectorComp = New DPAPIComp.DataProtectorComp--- where DPAPIComp is the name of the namespace referenced to in the library
0
3233
by: clevariant | last post by:
Hello, I'm tasked with creating a WSDL file that is compatible with .NET's code gen' tool, wsdl.exe. I'm getting an error in the code output saying "Missing soap:body input binding", which seems to indicate it can't find the <soap:body> element where it's looking for it. We are using the extension <mime:multipartRelated> to define some SOAP attachements in our interface, and the <soap:body> element is inside a subelement of that (per...
1
3441
by: Martin | last post by:
Hi Im trying to make a Client/Server where im going to encrypt the stream but i cant get it to work. I can recieve and send as long as im not trying to send/recieve encrypted. but when i am i cant send, recieve or both. The Send/Recieve Code is the same on both Server and client. Send/Recieve Code: private Stream Net() { if(Encrypted) {
2
2577
by: sushant.bhatia | last post by:
Hi All. I'm using the NCrypto dll for RSA Encryption/Decryption (http://sourceforge.net/projects/ncrypto/). My encryption code in .Net is pretty simple. The dataToEncrypt length is 1024. The returned data is 1161 in length. public static byte EncryptRSA(string certFilePublic, byte dataToEncrypt) { RSAParameters rsaParams = GetRSAPubKey(certFilePublic);
1
8968
by: BigLuzer | last post by:
hi i am using the following setup: - .net 1.1 - 2 load-balanced iis servers - DPAPI machine store. - C# - i encrypted the connection string separately, one on each machine. the error i get is: - Exception decrypting. Decryption failed. Key not
13
3576
by: Tom Andrecht | last post by:
I'm trying to get some encryption/decryption routines going to take care of my data, and while the encryption is working great, I keep running into the message "Padding is invalid and cannot be removed" on the decryption piece. From everything I can see, I am doing things correctly here My code is as follows: private const string PassStr = "MyPrivateKey"; private static readonly byte PassSalt = new byte { Byte Byte Byte Byte Byte};...
5
9500
by: Netwatcher | last post by:
well, i started messing around with dictionaries, yet, most of the pages i found about them always talk about getting only one word out of it and turning it vice versa, i've been playing with that code for a few hours: #dics Encryption={',':'hy{;',' ':'h4x0r2','':'zomg','?':'bko','a':'ika','b':'d0v','c':'ino', 'd':'maw', 'e':'aon', 'f':'que', 'g':'kip', 'h':'an', 'n':'ko print lol except KeyError: print 'These...
9
4811
by: Betikci Boris | last post by:
I get bored last night and wrote a script that uses xor for encrypt- decrypt, however it woks fine under linux 2.6.25, text and documents are ok, but fails on compressed files *.jpg, *.pdf , etc . I didn't test script on windows. Here is the code, please send me your views. <?php /* Mother Eye Chipper with PHP :), Licence:GPL,
0
8265
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look ! Part I. Meaning of...
0
8637
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
1
8364
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
8504
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
0
7193
agi2029
by: agi2029 | last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own.... Now, this would greatly impact the work of software developers. The idea...
0
5574
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
0
4092
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
1
2625
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
1
1808
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.