SHA2

description

Use SHA2 to digest the message.

Syntax

SHA2(str, digest_length)

Paramters

• str: content to be encrypted
• digest_length: the length of the digest. Support 224, 256, 384, 512

example

select sha2('abc', 224);

+----------------------------------------------------------+
| sha2('abc', 224)                                         |
+----------------------------------------------------------+
| 23097d223405d8228642a477bda255b32aadbce4bda0b3f7e36c9da7 |
+----------------------------------------------------------+

select sha2('abc', 384);

+--------------------------------------------------------------------------------------------------+
| sha2('abc', 384)                                                                                 |
+--------------------------------------------------------------------------------------------------+
| cb00753f45a35e8bb5a03d699ac65007272c32ab0eded1631a8b605a43ff5bed8086072ba1e7cc2358baeca134c825a7 |
+--------------------------------------------------------------------------------------------------+

select sha2(NULL, 512);

+-----------------+
| sha2(NULL, 512) |
+-----------------+
| NULL            |
+-----------------+