How to fix the Oracle error TNS-02520: encryption/crypto-checksumming: no Diffie-Hellman seed?

In this post, you’ll learn more about the Oracle ErrorTNS-02520: encryption/crypto-checksumming: no Diffie-Hellman seed with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-02520: encryption/crypto-checksumming: no Diffie-Hellman seed

Reason for the Error TNS-02520: encryption/crypto-checksumming: no Diffie-Hellman seed

Cause: The “sqlnet.crypto_seed” parameter is missing from the SQLNET.ORA parameters file for Oracle Advanced Security.

How to fix the Error TNS-02520: encryption/crypto-checksumming: no Diffie-Hellman seed ?

You can fix this error in Oracle by following the below steps

Action: Add this line to SQLNET.ORA: sqlnet.crypto_seed = “randomly-chosen text”