ORA-46249
Diffie-Hellman key exchange failed with the supported key size key_size.
- key_size: The supported key size.
Cause
The Diffie-Hellman key exchange during an Oracle Real Application =Security session initialization failed.
Action
Check the Diffie-Hellman public key size from middle tier. The failure is expected if the middle tier public key size does not match the supported key size at server side.