Subject: FTPS with certificate not working
Date: 2021-11-22 03:15:54
From: Melody
Source: ftps-certificate-not-working
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Following will be my code for connecting to FTPS, there is no password on p12 certificate. 

    client.SecureDataTransfers = True
    AddHandler client.CertificateRequired, AddressOf client_File_CertificateRequired
    client.Connect(FtpObject.HostName, Integer.Parse(FtpObject.PortNumber), SslSecurityMode.Explicit)
    client.Authenticate(FtpObject.UserName, FtpObject.Password)
    
    Private Sub client_File_CertificateRequired(ByVal sender As Object, ByVal e As ComponentPro.Security.CertificateRequiredEventArgs)
            e.Certificates = New X509Certificate2Collection(New X509Certificate2(FtpObject.SshPrivateKeyPath, ""))
    End Sub

**Certificate Information**

Encryption algorithm = TLSv1.2: AES256-SHA256, 2048 bit RSA, AES256-SHA256           TLSv1.2 Kx=RSA      Au=RSA  Enc=AES(256)  Mac=SHA256
Cryptographic protocol = TLS/SSL Explicit encryption, TLSv1.2


**Following is the error received:**

ComponentPro.Net.TlsException: Certificate does not have a private key. ---> ComponentPro.Net.TlsException: Certificate does not have a private key. ---> System.Security.Cryptography.CryptographicException: Certificate does not have a private key.
   at c_ls.c_726be0b4(c_wz , Boolean , Boolean )
   at c_fd.c_7007f8d7(c_wz , Boolean , Boolean )
   at c_fd.c_3bd7b77c(c_wz , Boolean , Boolean )
   at c_wz.c_58d2c182(Boolean )
   at c_wz.c_6449b9db(Byte[] , SignatureHashAlgorithm , Boolean )
   at c_ua.c_2bc3047b(Byte[] , Int32 , Int32 , c_ss )
   at c_ua.c_8d3f7a18(Byte[] , Int32 , Int32 )
   at c_jt.c_1042b92c(Byte[] , Int32 , Int32 )
   at c_jt.c_2fb37a89()
   --- End of inner exception stack trace ---
   at c_jt.c_2fb37a89()
   at c_jt.c_d7acd670()
   at c_yq.c_d7acd670()
   at c_d.c_7f3b5988(SslConfigBase )
   at ComponentPro.Net.Ftp.c_b06d9818(SslConfigBase , FtpSslExplicitAuthType , AsyncOperation )
   at ComponentPro.Net.Ftp.c_d8db87dc(String , Int32 , SslConfigBase , SslSecurityMode , FtpSslExplicitAuthType , AsyncOperation )
   --- End of inner exception stack trace ---
   at ComponentPro.Net.Ftp.c_d8db87dc(String , Int32 , SslConfigBase , SslSecurityMode , FtpSslExplicitAuthType , AsyncOperation )
   at ComponentPro.Net.Ftp.Connect(String serverName, Int32 serverPort, SslSecurityMode security)

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