admin – Page 53 – Chilkat Tech Notes

January 19, 2012

Chilkat supports CAdES-BES and CAdES-EPES digital signatures

Chilkat v9.3.0, being released this week, now supports the ability to create CAdES-BES and CAdES-EPES digital signatures via the MailMan, Mime, and Crypt2 objects. All three objects/classes now include the following new properties: bool CadesEnabled; string CadesSigPolicyId; string CadesSigPolicyUri; string CadesSigPolicyHash; (base64 encoded representation of hash) To create a CAdES-BES signature, simply set the CadesEnabled property = true. For CAdES-EPES, […]

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January 19, 2012

IMAP: Download email without attachments and downloading attachments separately.

Chilkat version 9.3.0, being released this week, includes new IMAP functionality to fetch emails without downloading attachments, and then subsequently fetch attachments one at a time separately. There is a new boolean property named “AutoDownloadAttachments”, which has a default value of True (YES). If set to False (NO), then all Fetch* methods will not download attachments. Note: “related” items are […]

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January 19, 2012

Cocoa Asynchronous Methods and Event Callbacks

Chilkat v9.3.0 for Cocoa now includes the asynchronous functionality and event callback functionality that has been available in the C++ libs. Asynchronous methods run in a background thread such that the call immediately returns to the application. Events are not fired w/ asynchronous method calls — your app would periodically check to see if the background task is finished. To […]

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January 19, 2012

Chilkat v9.3.0 Release Notes

Chilkat v9.3.0 is in the process of being released this week. The release notes (below) detail the changes, fixes, new features, etc. regarding the new version. (Crypt2, MIME, MailMan) Now supports the ability to create CAdES-BES and CAdES-EPES digital signatures. See CAdES for more information. (IMAP) Added the ability to download emails without attachments, and to download attachments separately. See […]

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December 27, 2011

dylddyld_start error when launching your iOS app

A note from a Chilkat customer using the IOS 4.3/5.0 libraries: …when running in the simulator, it ended up in gdb with a “__dlyd__dlyd_start message. I looked around on Google and found this: http://blog.ginzburgconsulting.com/__dyld__dyld_start-error-when-launching-your-ios-app/ So I added the -weak-lSystem flag in Xcode (Targets -> Your target -> Build Setting tab) and it’s running now.

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December 5, 2011

Running Chilkat .NET 4.0 on Azure

See this Microsoft TechNet blog discussion about the solution: http://social.technet.microsoft.com/Forums/en-US/windowsazuredevelopment/thread/8d7a39cc-0e14-49c0-9102-e705c2eec934#498ddad1-d250-418c-9463-2b8958329af3 In summary: Connect with RDP to Azure image and install vcredist_x64.exe. How to configure Azure RDP, you can find here: http://msdn.microsoft.com/en-us/library/gg443832.aspx Also See: https://cknotes.com/?p=311

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November 8, 2011

Format of AES, Blowfish, Twofish, 3DES, etc. Symmetric Encrypted Data?

Question: I know it isn’t listed in the documentation, but is there any method to test whether a file has been previously encrypted or not? I would like to perform decryption on a file, but only if it is already encrypted. Answer: A symmetric encryption algorithm is simply a transformation of bytes such that the output has the properties of […]

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October 24, 2011

Java System.loadLibrary w/ GlassFish application server

** The following is a helpful note from a Chilkat customer using the Chilkat Java API in a GlassFish environment: FYI I managed to solve the problem. The following is what I did (in case you may want to help others with a similar need in future) to enable the RSA component to run within a Java EE6 web application […]

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October 24, 2011

XCode Linker will automatically choose dylib over static libs

A note about building (linking) a project in XCode: If a static lib’s corresponding dylib is in a library search path during linking, Xcode will link to the dylib instead of the static lib. The solution is to move the dylib somewhere else. (from a Chilkat customer) “I created chilkat-9.2.1-macosx-10.5/lib/dylib and moved the dylibs into it. Since my library search […]

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October 24, 2011

Common IOS undefined symbols error

Link Error: Undefined symbols for architecture i386: “operator new(unsigned long)”, referenced from: -[CkoMailMan init] in libchilkatIos.a(CkoMailMan.o) “operator delete(void*)”, referenced from: -[CkoMailMan init] in libchilkatIos.a(CkoMailMan.o) Solution: The Chilkat internals are written in C++. Therefore, your Objective-C application will need to link against the C++ runtime libraries. The easiest way to do it is to include an empty source file with the […]

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