How to encrypt oracle view

Oracle View Encryption allows you to encrypt data in the view, thereby enhancing the security of sensitive information. The steps include: 1) Creating the main encryption key (MEk); 2) Creating an encrypted view, specifying the view and MEk to be encrypted; 3) Authorizing users to access the encrypted view. How encrypted views work: When a user querys for an encrypted view, Oracle uses MEk to decrypt data, ensuring that only authorized users can access readable data.

Oracle View Encryption

What is Oracle View Encryption?

Oracle View Encryption is a security mechanism used to encrypt data stored in the view, thereby protecting sensitive information from unauthorized access.

How to encrypt Oracle views?

Step 1: Create the master encryption key (MEk)

First, you need to create a MEk, which is the key used to encrypt and decrypt the view data. You can use the Oracle Data Masking and Subsetting options or third-party tools to create MEks.

Step 2: Create an encrypted view

Next, create an encrypted view, as follows:

 <code class="sql">CREATE ENCRYPTED VIEW encrypted_view AS SELECT * FROM original_view ENCRYPT USING MEK key_name;</code>

in:

• original_view is the original view to be encrypted.
• key_name is the name of MEk.

Step 3: Authorize access to the encrypted view

After the encrypted view is completed, access is required to be granted to the appropriate user as follows:

 <code class="sql">GRANT SELECT ON encrypted_view TO user1;</code>

How does encrypted views work?

• When a user querys for an encrypted view, Oracle uses MEk to decrypt the view data.
• Only users with MEk access can decrypt data.
• Unauthorized users can only see encrypted, unreadable data.

benefit:

• Enhance data security and prevent unauthorized access.
• Meet regulatory compliance requirements.
• Improve sensitive data privacy.

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