My database is 12.1.0.2 (on Oracle Linux) and I am using Instant Client 18.3 (Windows 10 x64). Installed DMU 2.2 on 64-bit java jdk1.8.0_181.
I had to encrypt database connections recently (i.e. add SQLNET.ENCRYPTION_% and SQLNET.CRYPTO_CHECKSUM_% options to SQLNET.ORA).
Not needing to say, but anyway...: DMU stopped connecting - showing ORA-12650 "No common encryption or data integrity algorithm".
Adding the same SQLNET.ENCRYPTION_% and SQLNET.CRYPTO_CHECKSUM_% options to client's SQLNET.ORA did not help...
Can DMU connect to a database with encryption (AES256) and integrity (SHA256) turned on?
I had added the following to SQLNET.ORA on the server side:
SQLNET.ENCRYPTION_SERVER = required
SQLNET.ENCRYPTION_TYPES_SERVER = (AES256)
SQLNET.CRYPTO_CHECKSUM_SERVER = required
SQLNET.CRYPTO_CHECKSUM_TYPES_SERVER = (SHA384)
SQLNET.ENCRYPTION_CLIENT = required
SQLNET.ENCRYPTION_TYPES_CLIENT = (AES256)
SQLNET.CRYPTO_CHECKSUM_CLIENT = required
SQLNET.CRYPTO_CHECKSUM_TYPES_CLIENT = (SHA384)
SQLNET.CRYPTO_SEED = '...'