The CFF stage, short for Complex Flat File stage, is a crucial component in the DataStage environment within Data Warehousing.
These properties define the structure and format of the data being processed in the CFF stage.
In the realm of data integration and transformation, DataStage CFF (Cryptographic File Facility) stage plays a crucial role. This article aims to shed light on what the DataStage CFF stage is, its functionalities, and how it can be effectively utilized.
DataStage CFF stage is a specialized stage in IBM InfoSphere DataStage that provides functions for encrypting, decrypting, and hashing data during the ETL (Extract, Transform, Load) process. It ensures the security of sensitive information by implementing strong encryption algorithms.
The DataStage CFF stage encrypts data using advanced encryption standards like AES (Advanced Encryption Standard) or DES (Data Encryption Standard). This feature is particularly useful when dealing with sensitive data that needs to be protected during transfer and storage.
On the other hand, the decryption function of the DataStage CFF stage allows for secure access to encrypted data. It enables users to decrypt data that was previously encrypted using the encryption function.
The hashing function generates a fixed-size string, known as a hash or message digest, based on the input data. This feature can be used for data integrity checks and can help detect tampering or corruption of data during transfer.
-- Define CFF stage object
DECLARE cff_stage OBJECT(type('cryptofac.CryptoFacility') INSTANCE 'CryptoStage');
-- Set encryption/decryption properties
SET PROPERTY (cff_stage, ENCRYPTION_ALGORITHM) = 'AES';
SET PROPERTY (cff_stage, KEY_MATERIAL) = 'YourEncryptionKey';
-- Encrypt data
SET @encryptedData = INVOKE cff_stage:encrypt(data);
-- Decrypt data
SET @decryptedData = INVOKE cff_stage:decrypt(@encryptedData);
-- Hash data
SET @hashValue = INVOKE cff_stage:hash(data, 'SHA-256');
| Algorithm Name | Description |
|---|---|
| AES (Advanced Encryption Standard) | A symmetric-key encryption algorithm that is widely used for securing data. |
| DES (Data Encryption Standard) | An older, symmetric-key block cipher used by the U.S. government for classified information from 1976 to 2005. |