Users were successfully migrated from OID to CA Directory.  Oracle Internet Directory uses SHA-1 hashing algorithm and CA Directory uses SSHA-512 by default. For the purpose of migration the hashing algorithm in Direcotry was changesd to be SHA-1. 
If the hashing algorithm has changed in CA Directory, will it affect Users?

Release:
Component: ETRDIR

Once you have loaded your data from OID to Directory, then you can change the password storage back to SSHA-512 and restart the DSA. This will not affect the existing passwords. But every time a user changes their password, it will be hashed in SSHA-512. The existing users will not be affected. 

See the communities post here for more details: CA Directory Convert Passwords Already in a DSA to a New Encryption Method - https://communities.ca.com/thread/119859393