Preface
Function reference
- Function components
Constants
Operators
Dates
Functions
- Function overview
  - Aggregate functions
    - Filter conditions
  - Conversion functions
  - Data cleansing functions
  - Date functions
  - Encoding functions
  - Financial functions
  - Horizontal expansion functions
  - Numeric functions
  - Scientific functions
  - Special functions
  - String functions
  - Test functions
  - Window functions
    - Aggregate functions as window functions
    - Nested aggregate functions as window functions
- Function quick reference
- Functions in advanced mode
- %OPR_CONCAT%
- %OPR_CONCATDELIM%
- %OPR_IIF%
- %OPR_SUM%
- ABORT
- ABS
- ADD_TO_DATE
- AES_DECRYPT
- AES_ENCRYPT
- AES_GCM_DECRYPT
- AES_GCM_ENCRYPT
- ASCII
- AVG
- CEIL
- CHOOSE
- CHR
- CHRCODE
- COMPRESS
- CONCAT
- CONVERT_BASE
- COS
- COSH
- COUNT
- CRC32
- CUME
- DATE_COMPARE
- DATE_DIFF
- DEC_BASE64
- DECODE
- DECOMPRESS
- ENC_BASE64
- ERROR
- EXP
- FIRST
- FLOOR
- FV
- GET_DATE_PART
- GREATEST
- IIF
- IN
- INDEXOF
- INITCAP
- INSTR
- IS_DATE
- IS_NUMBER
- IS_SPACES
- ISNULL
- LAG
- LAST
- LAST_DAY
- LEAD
- LEAST
- LENGTH
- LN
- LOG
- LOWER
- LPAD
- LTRIM
- MAKE_DATE_TIME
- MAX (Dates)
- MAX (Numbers)
- MAX (String)
- MD5
- MEDIAN
- METAPHONE
- MIN (Dates)
- MIN (Numbers)
- MIN (String)
- MOD
- MOVINGAVG
- MOVINGSUM
- NPER
- PERCENTILE
- PMT
- POWER
- PV
- RAND
- RATE
- REG_EXTRACT
- REG_MATCH
- REG_REPLACE
- REPLACECHR
- REPLACESTR
- REVERSE
- ROUND (Dates)
- ROUND (Numbers)
- RPAD
- RTRIM
- SET_DATE_PART
- SETCOUNTVARIABLE
- SETMAXVARIABLE
- SETMINVARIABLE
- SETVARIABLE
- SHA256
- SIGN
- SIN
- SINH
- SOUNDEX
- SQRT
- STDDEV
- SUBSTR
- SUM
- SYSTIMESTAMP
- TAN
- TANH
- TO_BIGINT
- TO_CHAR (Dates)
- TO_CHAR (Numbers)
- TO_DATE
- TO_DECIMAL
- TO_FLOAT
- TO_INTEGER
- TRUNC (Dates)
- TRUNC (Numbers)
- UPPER
- UUID_STRING
- VARIANCE
System variables
Datatype reference

Function Reference

Back Next

AES_DECRYPT

Returns the decrypted value in string format.

Data Integration

uses the Advanced Encryption Standard (AES) algorithm with the Electronic Codebook (ECB) mode of operation. The AES algorithm is a FIPS-approved cryptographic algorithm that uses 128-bit encryption.

Syntax

AES_DECRYPT ( value, key )

Argument	Required/ Optional	Description
value	Required	Binary datatype. Value you want to decrypt.
key	Required	String datatype. Precision of 16 characters or fewer. Use the same key to decrypt a value that you used to encrypt it.

Return Value

Decrypted string value.

NULL if the input value is a null value.

Example

The following example returns decrypted Social Security numbers. In this example,

Data Integration

derives the key from the first three numbers of the Social Security number using the SUBSRT function:

AES_DECRYPT( SSN_ENCRYPT, SUBSTR( SSN,1,3 ))

SSN_ENCRYPT	DECRYPTED VALUE
07FB945926849D2B1641E708C85E4390	832-17-1672
9153ACAB89D65A4B81AD2ABF151B099D	832-92-4731
AF6B5E4E39F974B3F3FB0F22320CC60B	832-46-7552
992D6A5D91E7F59D03B940A4B1CBBCBE	832-53-6194
992D6A5D91E7F59D03B940A4B1CBBCBE	832-81-9528