Configure advanced algorithms for Field Encryption Enterprise

Create a cryptographic specification to define the algorithm for a cryptographic module. Customize the encryption specifications with advanced options that are available for Field Encryption Enterprise.

Avant de commencer

Role required: admin

Procédure

1. Navigate to All > System Security > Field Encryption > Field Encryption Experience tab, click New.
2. Select View module details from the Field Encryption overview to open the module record you want to configure.
3. Select Manage Specification Settings in the Cryptographic Specification section.
4. Select Back to navigate to the Algorithm Definition tab.
5. On the form, fill in the fields, selecting Next through each tab.

   Tableau 1. Algorithm Definition form

   Field	Description
   Crypto module	Name of the selected cryptographic module populates.
   Crypto purpose	The value is Symmetric Data Encryption/Decryption for Field Encryption Enterprise.
   Algorithm	The value is AES for Field Encryption Enterprise.
   Operation mode	The value is CBC for Field Encryption Enterprise.
   Size	Possible values are 256 and 128. Remarque : 256-bit size is most secure for encryption and is used for Symmetric Data Encryption/Decryption for Field Encryption Enterprise.
   Equality preserving	Option to enable deterministic encryption. Remarque : Selecting this option means that the encrypted value of a field should be the same when the field value remains the same. Option to enable Symmetric Data Encryption/Decryption with AES in Cipher Block Chaining (CBC) mode.
   Integrity	Option to provide Integrity in GCM operation and does not apply for Field Encryption Enterprise functionality.

6. Click Submit.

   The following example shows AES 256 CBC encryption. When Field Encryption Enterprise is active and the parent module is column_level_encryption, only Symmetric Data Encryption/Decryption AES 256 CBC applies as the crypto purpose. See Cryptographic specification overview for details.

   

Que faire ensuite

Perform one of the following operations:

• Select an entry in the Key Lifecycle table to define key lifecycle behavior. See Configure key lifecycle states for details to complete the lifecycle definition for the key.
• Select Next to create a cryptographic key. See one of the following tasks for key generation:
  • Generate a ServiceNow cryptographic key.
  • Configure properties for customer-supplied keys.
  • Import the wrapping / unwrapping key pair.