Chilkat Software

June 16, 2023

Solving CryptoCard Graphite Plus Smart Card Signing Problems

Information about the CryptoCard Graphite Plus smartcard is located at https://www.cryptotech.com.pl/Produkty/CryptoCard_Graphite,content.html “The card works closely with the new edition of the CryptoCard Suite software dedicated to it, which allows you to manage the content of the card and mediates in communication between programs using the card (logging into operating systems, e-mail programs, web browsers or signing applications) and the card […]

Uncategorized 0 2 min read
June 16, 2023

Types of Smartcard PINs

Smartcards use various types of PINs (Personal Identification Numbers) for authentication and security purposes. Some common types of PINs associated with smartcards are: User PIN: The User PIN is the primary PIN used by the cardholder to authenticate themselves and access the smartcard’s functionality. It is typically used for general card operations, such as authentication, digital signatures, and encryption. The […]

Smart Cards 0 2 min read
June 15, 2023

Office365 POP3 Authenticate Fails but Previously Succeeded

It’s normal for OAuth2 access tokens to expire after some time, such as 1 hour, and then you’ll need to refresh and retry. For example, this error in the LastErrorText for a call to Pop3Authenticate could indicate the OAuth2 accces token expired: Pop3Authenticate: DllDate: Mar 28 2023 ChilkatVersion: 9.5.0.94 UnlockPrefix: *** Architecture: Little Endian; 32-bit Language: ActiveX VerboseLogging: 1 Pop3Authenticate: […]

Uncategorized 0 2 min read
June 14, 2023

Quickly Understanding the MIME Format of Email

The format of email is MIME. A simple MIME message consists of headers followed by a body.  For example, here’s a simple text/plain email: From: sender@example.com To: recipient@example.com Subject: Example Email Content-Type: text/plain; charset=”UTF-8″ Hello, This is a simple plain text email. Regards, Sender MIME can be multipart. Here’s a text/plain email with a PDF attachment: From: sender@example.com To: recipient@example.com […]

Email 0 1 min read
June 14, 2023

AES-CMAC Keyed Hash Algorithm

The AES-CMAC keyed hash function, see https://www.rfc-editor.org/rfc/rfc4493, has been added to Chilkat for the next version release (v9.5.0.95). Here are some examples: AutoIt AES-CMAC C AES-CMAC Python AES-CMAC C++ AES-CMAC C# AES-CMAC DataFlex AES-CMAC Delphi AES-CMAC Visual FoxPro AES-CMAC Go AES-CMAC Java AES-CMAC Objective-C AES-CMAC Perl AES-CMAC PHP ActiveX AES-CMAC PHP AES-CMAC PowerBuilder AES-CMAC PowerShell AES-CMAC Swift AES-CMAC Tcl AES-CMAC […]

Uncategorized 0 22 sec read
June 13, 2023

Getting an OAuth2 access token using “client credentials” does not require interactivity with a browser

The “client credentials” OAuth2 flow is allowed by many REST API’s for the case where a program is running in a non-interactive environment. It’s simply an HTTP POST where the client_id and client_secret are sent, and the OAuth2 access token is returned. If you have a sample CURL statement that demonstrates how to do it, you can generate Chilkat source […]

Uncategorized 0 48 sec read

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ActiveX asp async asynchronous C# callbacks charset Delphi email Encryption error messages events exchange server FTP GMail HTTP IMAP IOS Java Linking MHT MIME oauth2 Office365 pfx PHP pop3 port-forwarding regsvr32 release notes RSA SFTP SMTP socket SSH SSL TLS tunnel upload vb6 VC++ x64 xades XML zip