# SHA-1 Hash Calculator

This SHA-1 hash calculator differs from most in that it takes binary input in the form of hexadecimal digits (0-9, A-F or a-f) representing the base 16 digits with values from 0 through 15. One 8 bit ‘character’ is represented by two hexadecimal digits. Most SHA-1 calculators only take ASCII text input. To verify this against one of those calculators enter the hexadecimal ASCII code, e.g. 40=@. Compare the result of “@@@@” on another calculator against “40404040” with this calculator.

Contact us for questions
###### Input length: 0 characters, 0 bits

Output: da 39 a3 ee 5e 6b 4b 0d 32 55 bf ef 95 60 18 90 af d8 07 09

- This calculator is provided as is, without warranties of any kind.
- This calculator uses the built-in SHA-1 function in PHP.
- Copyright 2019 by David Crowe.

PHP CODE HERE HASH CALC