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The Transformation Language
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Transformation Language Reference

10.5
- 10.5.6
- 10.5.4
- 10.5.1
- 10.4.0
- 10.2.2 Service Pack 1
- 10.2.2
- 10.2.1

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AES_ENCRYPT

Returns data in encrypted format. The

Data Integration Service

uses Advanced Encryption Standard (AES) algorithm with 128-bit and 256-bit encoding. The AES algorithm is a FIPS-approved cryptographic algorithm.

Use this function to prevent sensitive data from being visible to everyone. For example, to store social security numbers in a data warehouse, use the AES_ENCRYPT function to encrypt the social security numbers to maintain confidentiality.

Syntax

AES_ENCRYPT (value, key, keySize)

The following table describes the arguments for this command:

Argument	Required/ Optional	Description
value	Required	String datatype. Value you want to encrypt.
key	Required	String datatype. Precision of 16 characters or fewer. You can use mapping variables for the key.
keySize	Required	Integer datatype. Precision of 16 characters or fewer. You can specify 128, 192, or 256-bit encryption. Default is 128-bit.

Return Value

Encrypted binary value.

NULL if the input is a null value.

Example

The following example returns encrypted values for social security numbers. In this example, the

Data Integration Service

derives the key from the first three numbers of the social security number using the SUBSTR function:

AES_ENCRYPT (SSN, SUBSTR(SSN,1,3), 256)

SSN	ENCRYPTED VALUE
832-17-1672	07FB945926849D2B1641E708C85E4390
832-92-4731	9153ACAB89D65A4B81AD2ABF151B099D
832-46-7552	AF6B5E4E39F974B3F3FB0F22320CC60B
832-53-6194	992D6A5D91E7F59D03B940A4B1CBBCBE
832-81-9528	20812B3331676B15A9378000EB900EE3

Tip

If the target does not support binary data, use AES_ENCRYPT with the ENC_BASE64 function to store the data in a format compatible with the database.

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Table of Contents

Transformation Language Reference

Transformation Language Reference

AES_ENCRYPT

AES_ENCRYPT

Syntax

Return Value

Example

Tip