Error
Error Code: ORA-28168

Oracle Error ORA-28168: Unsupported Certificate

📦 Oracle Database
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Description

The ORA-28168 error occurs when the Oracle database server attempts to extract client credentials from a certificate of an unsupported type. This typically happens during secure connection attempts using SSL/TLS where the server cannot process the certificate format provided by the client.
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Error Message

ORA-28168: unused error
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Known Causes

3 known causes
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Unsupported Certificate Type
The client certificate presented to the Oracle server is in a format that the server's configuration does not recognize or support. 💻
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Incorrect Wallet Configuration
The Oracle wallet (cwallet.sso or ewallet.p12) used to store trusted certificates is not configured correctly to recognize the certificate's issuing CA. 🔒
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Missing or Corrupted Certificate
The certificate file itself might be missing from the client's system or has become corrupted, preventing the server from properly interpreting its type. ⚙
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Solutions

Coming Soon

Detailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:

General Troubleshooting Tips

  • Check the error message carefully for specific details
  • Review recent changes that might have caused the error
  • Search for the exact error code in the official documentation
  • Check log files for additional context
  • Try restarting the application or service

Find Help

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