TNS-12599: TNS:cryptographic Checksum Mismatch in alert.log after enabling of encryption on the server side
(Doc ID 1927120.1)
Last updated on JULY 31, 2020
Applies to:Advanced Networking Option - Version 184.108.40.206 and later
JDBC - Version 220.127.116.11.0 and later
Information in this document applies to any platform.
The following errors appear in the alert.log for example:
TNS for AIX RISC System/6000: Version 18.104.22.168.0 - Production
TCP/IP NT Protocol Adapter for AIX RISC System/6000: Version 22.214.171.124.0 - Production
Oracle Bequeath NT Protocol Adapter for AIX RISC System/6000: Version 126.96.36.199.0 - Production
Time: 11-SEP-2014 09:55:38
Tracing not turned on.
Tns error struct:
ns main err code: 12599
TNS-12599: TNS:cryptographic checksum mismatch
ns secondary err code: 2526
nt main err code: 0
nt secondary err code: 0
nt OS err code: 0
Thu Sep 11 09:55:38 2014
This typically starts when you configure network encryption on the server side (only) with sqlnet.ora parameters
SQLNET.ENCRYPTION_SERVER = required
SQLNET.ENCRYPTION_TYPES_SERVER = (AES256)
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