Function And Java Class You Can get from Below Link...
https://github.com/arulxaviers/Oracle...
A Complete Brief Video about
How to use Oracle Database Encryption By Using SHA 256 Bit & 512 Bit Algorithms?
How to use Oracle SHA 256 Bit & 512 Bit Data Encryption Algorithms?
Oracle Data Encryption
Database Encryption
dbms_crypto.hash example 11g
dbms_crypto.hash sha256
dbms_crypto.hash invalid identifier
dbms_crypto.hash 12c
dbms_crypto.encrypt example
encryption and decryption in oracle 11g
sys.dbms_crypto.hash example
SHA 256 Bit
SHA 512 Bit Encryption