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hash - How Excel uses SHA512 hashing of passwords - Stack ...
- https://stackoverflow.com/questions/45752075/how-excel-uses-sha512-hashing-of-passwords
- The worksheet password is stored as a hash. If you use the Word "Jim" as password in Excel you get this salted hash as a result: l2nKB/0VLubEL2LL3MaanefnpLIJnZVJlTDDc4MVZFX70b50/YFBpQApC4C8fPKL+h+6xqVyakU/CLhKmsuN/w== (EDITED) But that is only 88 characters long. Excel is supposed to use SHA512 hashing, so why isn't the hash 128 characters long?
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Excel Hash Sign in Formulas - Xelplus - Leila Gharani
- https://www.xelplus.com/excel-hash-sign-formulas/
- We place the following formula in cell E1… =SORT (C1) This produces a list consisting of one app. This seems reasonable. After all, we only gave it one cell to sort. But we want to sort ALL the apps returned by the UNIQUE function. We can modify the SORT formula to include ALL apps by adding a HASH ( #) symbol after the C1 cell reference.
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Excel sheet protection password hash - Roundtrip to ...
- https://kohei.us/2008/01/18/excel-sheet-protection-password-hash/
- produces the right hash value from an arbitrary password. One caveat: this algorithm takes an 8-bit char array, so if the input value consists of 16-bit unicode characters, it needs to be first converted into 8-bit character array. The conversion algorithm is also documented in the OOXML specification.
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Hash Sign in Excel Formulas • My Online Training Hub
- https://www.myonlinetraininghub.com/hash-sign-in-excel-formulas
- Fun fact, the official name for the hash sign is Octothorpe (thanks to Roger Govier for that fun fact). In Excel it's referred to as the Spill Operator as it enables us to reference spilled arrays. *Note: Dynamic array formulas are available in Excel 2021 and Microsoft 365. Watch the Video Excel Hash Sign Operator - What is it + ADVANCED Tricks!
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Hashing in Excel
- https://www.excelforum.com/excel-general/1112790-hashing-in-excel.html
- For a new thread (1st post), scroll to Manage Attachments, otherwise scroll down to GO ADVANCED, click, and then scroll down to MANAGE ATTACHMENTS and click again. Now follow the instructions at the top of that screen. New Notice for experts and gurus:
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Excel : Encoding values with HASH functions SHA256 ...
- https://codedocu.com/Office-365/Excel/Templates/Excel-_colon_-Encoding-values-with-HASH-functions-SHA256?2482
- You can use the Excel function to =get_HASH_SHA256 (C6) The encoded hash werte in a new cell output The example file is available for download in the blog Vba Code in Excel No additional references are required. In Windows Features, .NET 3 must be enabled Option Explicit Public Function get_HASH_SHA256 (ByVal sInput As String) As String
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SHA256 HASH function - MrExcel Message Board
- https://www.mrexcel.com/board/threads/sha256-hash-function.468698/
- 1) Download the file that kusk0r mentions in the first post of the thread. 2) Edit line 563 and 637 of the file CSHA256.CLS that is included in the ZIP so that the function SHA256 is renamed. I renamed it to SHADD256 for some reason. Save the file. 3) In Excel 2007, go to Developer Tab, Click on Visual Basic.
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Hash Marks Displayed Instead of ... - Microsoft Excel Tips
- https://excel.tips.net/T008441_Hash_Marks_Displayed_Instead_of_Cell_Contents.html
- If the cell contains more than 255 characters and the cell is formatted as text, then the hash marks are displayed. The solution is to change the format of the cell to general; then the text will display as you expect. The more common occurrence is to see hash marks displayed when the cell contains a numeric (or date) value.
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hash function for large strings - Excel Help Forum
- https://www.excelforum.com/excel-formulas-and-functions/519698-hash-function-for-large-strings.html
- Excel vlookup function returns #VALUE when the lookup value exceeds 256 characters. I need a hash function to transform large strings into a value that does not exceed the 256 character limit. Are there any quick solutions to this problem?
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Tom's Tutorials For Excel: Spreadsheet Passwords — The ...
- https://www.atlaspm.com/toms-tutorials-for-excel/spreadsheet-passwords-false-sense-of-security/
- When someone password protects a sheet in Excel, they generate a 16-bit 2-byte hash, a technical term for a number generated from a string of text by a function called the MD5 Message Digest Algorithm. An MD5 hash has fewer numeric characters than the actual password text, making it unlikely but not impossible to be replicated.
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Understanding Excel's Password Security Methodology ...
- https://www.thespreadsheetguru.com/blog/2014/8/20/understanding-excels-password-security-methodology
- To determine a usable password for a locked Excel worksheet or workbook, a hacker can use a Brute-Force attacking program to cycle through all the possible hash values. Since the hashes are so short, there is a very manageable amount combinations the program would need to test on the desired file.
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Convert String to MD5 Hash - MrExcel Message Board
- https://www.mrexcel.com/board/threads/convert-string-to-md5-hash.973381/
- Hi, I reactivate this old thread. Thanks for the StringToMD5Hex function code. Very helpful. However, I found that it does not support Unicode characters. For example for "Doğan" (with an accent over the "g"), the MD5 returned by this VBA function is not the same as one produced in another environment supporting Unicode characters.If one of the experts here could help me make this work?
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Worksheet Passwords In Excel 2013: Spiced ... - Spreadsheet1
- https://spreadsheet1.com/sheet-protection-2013.html
- Sheet password hashed in Excel 2013 using the strong SHA512 algorithm Excel versions up-to 2010 used an outdated hashing algorithm. These 16-bit long plain hashes are very easy to hack, so working passwords can be recovered fast. However, the SHA512 hash algorithm used Excel 2013 is quite secure.
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Excel Worksheet Password Protection Explained
- https://www.spreadsheet1.com/sheet-protection.html
- To safeguard your original password against hacking, Excel does not save the user's real password inside the OpenXML file, but a cryptographic hash. Hash algorithms are one-way functions that convert passwords to a fixed length text that cannot be reversed. Even a minor change in the source input results in a completely different output.
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PHP Password Hashing tutorial (with examples) - Alex Web ...
- https://alexwebdevelop.com/php-password-hashing/
- In this example, you will implement a simple script to automatically convert old, MD5-based hashes to secure hashes created with password_hash (). This is how it works: When a user logs in, you first check its password with password_verify (). If the login fails, check if the hash in the database is the MD5 hash if the password.
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How to Extract a Password Hash Yourself — MS Office, PDF ...
- https://www.lostmypass.com/how-it-works/help/how-to-extract-hash-yourself/
- Step 1. Create a Folder First of all, create a folder to work in. To simplify experience with Command Prompt, the easiest way is to create a folder in the root of your system drive. For example, on drive C: create the Hash folder. Then, copy the protected file to the that folder. Step 2. Open the Command Prompt
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Visual Basic for Applications/String Hashing in VBA ...
- https://en.m.wikibooks.org/wiki/Visual_Basic_for_Applications/String_Hashing_in_VBA
- The use of a hash allows programmers to avoid the embedding of password strings in their code. The memory space occupied by an application can be read with special utilities, so passwords might be be found in code, then used in a normal user login.
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HashTable in VBA - MrExcel Message Board
- https://www.mrexcel.com/board/threads/hashtable-in-vba.177640/
- If you forgot your password, you can reset your password. Forums. Question Forums. Excel Questions . HashTable in VBA. Thread ... Does anyone know if it is possible to create either a HashTable or a HashMap in VBA either Access or Excel - I am looking for the most efficient way to check values assigned to a large number of setting type values. ...
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Protecting Excel Worksheets and Workbooks - GeeksforGeeks
- https://www.geeksforgeeks.org/protecting-excel-worksheets-and-workbooks/
- Step 2: Select the Protect Workbook box and choose Encrypt with Password. Step 3: Enter a password in the Password box, and then select OK. Step 4: Confirm the password in the Re-enter Password box and then select OK. TIP: Excel can't retrieve your password once forgotten hence it's advised to keep it easy to remember. Making a workbook Read-only :
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