MySQL | SHA1( ) Function

The MySQL SHA1() function is used for encrypting a string using the SHA-1 technique. The SHA1 stands for secure hash algorithm and it produces a 160-bit checksum for a user inputted string.

The MySQL SHA1() function returns NULL if the string passed as an argument is a NULL string. The SHA1() function accepts one parameter which is the string to be encrypted.



Parameters Used:

string – It is used to specify the plain text string that is to be encrypted.

Return Value:
The SHA1() function in MySQL returns the encrypted string or NULL if the string passed is an empty string.

Supported Versions of MySQL:

  • MySQL 5.7
  • MySQL 5.6
  • MySQL 5.5
  • MySQL 5.1
  • MySQL 5.0
  • MySQL 4.1

Example-1: Implementing SHA1() function on a string.




Example-2: Implementing SHA1() function on a string which has a combination of characters and integers.




Example-3: Implementing SHA1() function on a NULL string and returning the length of the string after compression.



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