Latest notes, articles, and news
There is a big unsolved mystery: Is it possible to create pre-signed URLs for AWS services other than S3? For example, is it possible to create a pre-signed URL that allows the user to send an SES email? We simply don’t know. Theoretically it seems it should be possible. However, all AWS pre-signed URL documentation or examples has to do […]
Question: Unable to install Chilkat because of the Python version and architecture error: “This Python version does not match the downloaded Chilkat module.” Answer: Refer to the install instructions here: https://www.chilkatsoft.com/installPythonLinux2.asp You can open the installChilkat.py script in a text editor to see what it does. It’s simply verifying that your version of Python (such as “3.7”) matches the version […]
Problem Report: Sending Signed Email with an Attachment A user reported a problem where sending digitally signed email works fine for emails with no attachments, but verification on the receiving end failed for emails with attachments. Chilkat tried the same, but (of course) everything worked for us. (The problem turned out to be a user-error, i.e. not a problem in […]
OAuth2 authentication for desktop apps. Many developers don’t realize that the Chilkat OAuth2 class is for desktop applications. Doing OAuth2 in a web application (where your code runs on a web server) is relatively easy and does not require Chilkat (although Chilkat can be used to assist with some mundane tasks). Working/live examples are provided on the Chilkat Tools […]
Question: I get this error when sending ITIDA signed JSON to the authority web server: 4043 4043:message-digest attribute value does not match calculated value[message-digest attribute value does not match calculated value] Answer: This means the JSON you sent to the web server is different than the JSON that was signed. One possibility is that you signed JSON with the outer […]
Previous Version: https://cknotes.com/chilkat-v9-5-0-89-release-notes/ Next Version: https://cknotes.com/chilkat-v9-5-0-91-release-notes/ Chilkat v9.5.0.90 Release Notes XmlDSigGen: Added the AddObjectRef2 and AddSameDocRef2 methods to allow for a more precise specification of the transforms to be applied when signing. XmlDSigGen: Added the ability to include an EncapsulatedTimeStamp when signing. The SetTsa method was added to provide the URL for the timestamping authority. XmlDSig: Added the ability to […]
1. Chilkat fixed XML signature generation and verification for ebXML Messages. These are messages using the following Transform: <Transform Algorithm=”http://www.w3.org/TR/1999/REC-xpath-19991116″> <XPath> not(ancestor-or-self::()[@SOAP:actor=”urn:oasis:names:tc:ebxml-msg:actor:nextMSH”] | ancestor-or-self::()[@SOAP:actor=”http://schemas.xmlsoap.org/soap/actor/next”] ) </XPath> </Transform> 2. Updated Chilkat.Pdf to be able to sign a PDF with an image-only appearance (no text). An example on the example-code.com site will be forthcoming. 3. Working out issues with the CryptoCard Graphite […]
1. Older programming languages such as VB6 and FoxPro run as 32-bit applications. Always. Even on 64-bit Windows computers. You should always use the 32-bit ActiveX (not the 64-bit ActiveX). If you use the 64-bit ActiveX, such as with FoxPro, you’ll get the 0x80020010: Invalid Callee error: 2. The Http.ReceiveRate and Http.SendRate event callbacks were not firing for .NET Core […]
What’s happening in Chilkat support today.. – Added the following key exchange algorithms to Chilkat’s internal SSH transport: diffie-hellman-group16-sha512, diffie-hellman-group18-sha512, diffie-hellman-group14-sha256 This makes Chilkat compatible with servers that might limit kex algorithms to only these (which is very rare). No changes to the application are needed. The new algorithms apply to any SSH connection, including those for SFTP. Chilkat 14-Jan-2022 […]
What’s going on in Chilkat support today… 1. Adding support for Ed25519 keys for CSR generation. Chilkat 11-Jan-2022 Chilkat 19-Jan-2022 Added 3 New Key Exchange Algorithms for SSH