An Error Occurred In The Secure Channel Support Windows 7
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Winhttp.winhttprequest An Error Occurred In The Secure Channel Support
with cipher TLS_RSA_WITH_RC4_128_SHA Windows Server > Security Question 1 Sign in to vote I have a
Msxml3.dll Error '80072f7d'
script running on a Windows 2012 R2 server (fully up to date) that is trying to connect to a webserver using HTTPS. The cipher suites https://support.microsoft.com/en-us/kb/181147 offered by the certificate on the server are: TLS_RSA_WITH_RC4_128_SHATLS_RSA_WITH_RC4_128_MD5 As far as I can tell these are supported on Windows 2012 R2 but yet the connection fails with: -2147012739 (80072F7D) An error occurred in the secure channel support ... and logs the following in the Event Log: Log Name: System Source: https://social.technet.microsoft.com/Forums/en-US/d737466a-5dc9-4f4e-8651-b80b16ba58ca/windows-2012-r2-cannot-connect-to-tls-secured-site-with-cipher-tlsrsawithrc4128sha?forum=winserversecurity Schannel Date: 13/11/2014 15:56:52 Event ID: 36887 Task Category: None Level: Error Keywords: User: SYSTEM Computer: Serial1 Description: A fatal alert was received from the remote endpoint. The TLS protocol defined fatal alert code is 40. I have used Wireshark to review the cipher suites being offered as part of the TLSv1.1 Client hello and it seems neither of the two supported by the certificate are included: cipher suites (19 suites) cipher suite: TLS_RSA_WITH_AES_128_CBC_SHA256 (Ox003c) cipher suite: TLS_RSA_WITH_AES_128_CBC_SHA (Ox002f ) cipher suite: TLS_RSA_WITH_AES_256_CBC_SHA256 (Ox003d) cipher suite: TLS_RSA_WITH_AES_256_CBC_SHA (Ox0035) cipher suite: TLS_RSA_WITH_3DES_EOE_CBC_SHA (OxOOOa) cipher suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (Oxc027) cipher suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (Oxc013) cipher suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (Oxc014) cipher suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 (Oxc02b) cipher suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 (Oxc023) cipher suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 (Oxc02c) cipher suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 (Oxc024) cipher suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA (Oxc009) cipher suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (OxcOOa) cipher suite: TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 (Ox0040) cipher suite: TLS_DHE_DSS_WITH_AES_128_CBC_SHA (Ox0032) cipher suite: TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 (Ox006a) cipher suite: TLS_DHE_DSS_WITH_AES_256_CBC_SHA (Ox0038) cipher suite: TLS_DHE_DSS_WITH_3DES_EOE_CBC_SHA (Ox0013) Why? After some rese
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow http://stackoverflow.com/questions/29688026/vb6-winhhtp-error-occurred-in-the-secure-channel-support the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up vb6 winhhtp: Error Occurred in the Secure Channel Support up vote 1 down vote favorite I wrote a an error VB6 program which uses winhttp.dll to send and receive messages to/from a remote server. It has been working fine from various operating systems: Windows 2000, WinXP, Win7, Win8. Recently the server provider informed me that they will "phase out support of SHA-1 security certificates" and i need to "check that the thumbprint is aligned to SHA-2 new SSL cert.". What is happening now is that when my program runs on WinXP,7,8 - an error occurred it's still OK. But when running on Windows 2000, when I call the winhttp Send() method, I get an exception "Error Occurred in the Secure Channel Support". I am failey clueless on certificates etc and I don't really know what to do. My Vb6 code looks as follows: ' Connect to server Set m_ServerObj = New WinHttpRequest m_ServerObj.Open "GET", m_ServerURL_SC ' Send request to server m_ServerObj.Option(WinHttpRequestOption_SslErrorIgnoreFlags) = &H3300 'Unknown certification authority (CA) or untrusted root 0x0100 'Wrong usage 0x0200 'Invalid common name (CN) 0x1000 'Invalid date or certificate expired 0x2000 m_ServerObj.Send xml The error occurres when Send is called ssl vb6 winhttp share|improve this question asked Apr 17 '15 at 0:05 yaronkl 75210 Please let us know if you ever succeed in correcting the issue, or otherwise if you ever find what exactly was causing the error. Thanks! –johnwait Apr 17 '15 at 20:16 add a comment| 1 Answer 1 active oldest votes up vote 2 down vote accepted ERROR_WINHTTP_SECURE_CHANNEL_ERROR: This is a generic error thrown whenever Schannel.dll encounters a SSL version / feature / cipher / key-length / etc. it doesn't understand or support, or when the server (in the case of a client) will not negotiate for anything the client supports. WinHttp relies on it (which is part of the OS)