aes_decrypt
Description
Uses the AES_128_ECB algorithm to decrypt a string and returns a binary string.
AES is short for advanced encryption standard and ECB is short for electronic code book. The key used to encrypt the string is a 128-bit string.
Syntax
aes_decrypt(str,key_str);
Parameters
str
: the string to decrypt. It must be of the VARCHAR type.
key_str
: the key used to encrypt str
. It must be of the VARCHAR type.
Return value
Returns a value of the VARCHAR type. If the input is invalid, NULL is returned.
Examples
Decode a Base64 string and use this function to decrypt the decoded string into the original string.
mysql> select AES_DECRYPT(from_base64('uv/Lhzm74syo8JlfWarwKA== '),'F3229A0B371ED2D9441B830D21A390C3');
+--------------------------------------------------------------------------------------------+
| aes_decrypt(from_base64('uv/Lhzm74syo8JlfWarwKA== '), 'F3229A0B371ED2D9441B830D21A390C3') |
+--------------------------------------------------------------------------------------------+
| starrocks |
+--------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)