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Fix worksheet password hashing algorithm for long passwords.

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Replace/fix the worksheet protection password algorithm
so that is works correctly for strings over 24 chars.
This commit is contained in:
John McNamara 2023-01-14 18:29:41 +00:00
parent 1b7e99a7eb
commit d3efbdbbfe
2 changed files with 59 additions and 18 deletions
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46
test/unit/utility/test_hash_password.c Normal file
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@ -0,0 +1,46 @@
/*
* Tests for the libxlsxwriter library.
*
* Copyright 2014-2022, John McNamara, jmcnamara@cpan.org
*
*/
#include "../ctest.h"
#include "../helper.h"
#include "../../../include/xlsxwriter/utility.h"
// Test lxw_hash_password().
CTEST(utility, lxw_hash_password) {
ASSERT_EQUAL(0x83AF, lxw_hash_password("password"));
ASSERT_EQUAL(0xD14E, lxw_hash_password("This is a longer phrase"));
ASSERT_EQUAL(0xCE2A, lxw_hash_password("0"));
ASSERT_EQUAL(0xCEED, lxw_hash_password("01"));
ASSERT_EQUAL(0xCF7C, lxw_hash_password("012"));
ASSERT_EQUAL(0xCC4B, lxw_hash_password("0123"));
ASSERT_EQUAL(0xCACA, lxw_hash_password("01234"));
ASSERT_EQUAL(0xC789, lxw_hash_password("012345"));
ASSERT_EQUAL(0xDC88, lxw_hash_password("0123456"));
ASSERT_EQUAL(0xEB87, lxw_hash_password("01234567"));
ASSERT_EQUAL(0x9B86, lxw_hash_password("012345678"));
ASSERT_EQUAL(0xFF84, lxw_hash_password("0123456789"));
ASSERT_EQUAL(0xFF86, lxw_hash_password("01234567890"));
ASSERT_EQUAL(0xEF87, lxw_hash_password("012345678901"));
ASSERT_EQUAL(0xAF8A, lxw_hash_password("0123456789012"));
ASSERT_EQUAL(0xEF90, lxw_hash_password("01234567890123"));
ASSERT_EQUAL(0xEFA5, lxw_hash_password("012345678901234"));
ASSERT_EQUAL(0xEFD0, lxw_hash_password("0123456789012345"));
ASSERT_EQUAL(0xEF09, lxw_hash_password("01234567890123456"));
ASSERT_EQUAL(0xEEB2, lxw_hash_password("012345678901234567"));
ASSERT_EQUAL(0xED33, lxw_hash_password("0123456789012345678"));
ASSERT_EQUAL(0xEA14, lxw_hash_password("01234567890123456789"));
ASSERT_EQUAL(0xE615, lxw_hash_password("012345678901234567890"));
ASSERT_EQUAL(0xFE96, lxw_hash_password("0123456789012345678901"));
ASSERT_EQUAL(0xCC97, lxw_hash_password("01234567890123456789012"));
ASSERT_EQUAL(0xAA98, lxw_hash_password("012345678901234567890123"));
ASSERT_EQUAL(0xFA98, lxw_hash_password("0123456789012345678901234"));
ASSERT_EQUAL(0xD298, lxw_hash_password("01234567890123456789012345"));
ASSERT_EQUAL(0xD2D3, lxw_hash_password("0123456789012345678901234567890"));
}