This error generally means that you are trying to use TLS/SSL protocol version that is not supported on your machine (most likely it was turned off, because it is no longer considered secure)Ĭonst string DisableCachingName = string DontEnableSchUseStrongCryptoName = true) ĪppContext.SetSwitch(DontEnableSchUseStrongCryptoName, true) One or more of the parameters passed to the function was invalid Please note that using TLS 1.2 and forcing your server administrator to enable TLS 1.2 is the only correct and secure way to go. You may need to select additional protocol suites depending on what your server requires Selecting “Best Practices” and restarting, should solve the issue. If server requires this cypher, you’ll get this error message.
#Securityspy authentication error download#
Try forcing the latest TLS version (TLS 1.2):įinally you can download IISCrypto and review “Schannel” and “Cipher Suites” tabs.įor example we have seen clients that have TLS 1.0 turned on, but have TLS_RSA_WITH_3DES_EDE_CBC_SHA cypher suite turned off.This error generally means that something is incorrectly configured on your machine.
The message received was unexpected or badly formatted
Second option is the server is not supporting TLS 1.2 – you’ll need to use older protocol (TLS 1.1, TLS 1.0, SSL 3.0):. Some older versions need to be told to use TLS 1.2, it is also a good practice to force TLS 1.2 only:Ĭ = SslProtocols.Tls12 In most cases this means that the client is trying to use older SSL protocols like SSL 3.0, TLS 1.0 or TLS 1.1, but the remote server requires modern protocol – TLS 1.2.īy default all our clients support TLS 1.2. The client and server cannot communicate, because they do not possess a common algorithm Please contact your server administrator as TLS 1.1, TLS 1.0 and SSL 3.0 aren’t considered secure anymore. You can force Mail.dll or Ftp.dll to use it using following code:Ĭ = SslProtocols.Tls11 Use older TLS/SSL version (TLS 1.1, TLS 1.0, SSL 3.0). Regenerate the certificate (especially if it’s self-signed). Most likely your client tries to use TLS 1.2 but you are using old certificate on the server (e.g. :Ī call to SSPI failed, see inner exception. The token supplied to the function is invalid The use of RC4 in TLS is prohibited by RFC 7465 published in February 2015. SSL 3.0 was deprecated by RFC 7568 in June 2015.Īs of 2014 the 3.0 version of SSL is considered insecure as it is vulnerable to the POODLE attack that affects all block ciphers in SSL and RC4, the only non-block cipher supported by SSL 3.0, is also feasibly broken as used in SSL 3.0. SSL 2.0 was deprecated (prohibited) in 2011 by RFC 6176.
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