Pass getter

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Pass getter (Passgetter) is software for the password indication software of ZIP, PDF, Excel for Microsoft Windows that a Japanese internal company handles, password analysis such as Word files and Windows. It supports SSE2 and CUDA.

Table of contents

History

• The first version is released in July, 2011.

Summary

Three kinds of "ZIP Edition" "PDF Edition" "Office Edition" are sold, and "ZIP Edition" is distributed to the free copy [¹] and I am displayed with ZIP, PDF, Excel, analysis of the Word file and normal **** and ●●●● and can display an invisible password. In the password analysis of the ZIP file, I realize the transaction speed that is higher-speed than software conventionally in a thing corresponding to the processing with SSE and the CUDA, but exclude it from the object of the guarantee for the reason of depending on PC specifications about "analysis speed". In addition, I assume the password to six columns the range of the guarantee in the free distribution in five columns, paid Edition, and, according to the complexity of PC specifications and the password, it may be said whether you can analyze passwords more than seven columns. ^[2].

Password analysis

I can perform brute force attack (brute-force analysis) or the dictionary attack (Dictionary analysis) using the dictionary file.

The password analysis of the ZIP by brute force attack is known by being easy to do inflection of the multi-core and speedup by the パックド operation, and it is past, and similar software is released abroad. It is said that it is easy to do speedup by SSE in particular and GPGPU. There is instruction to calculate CRC32 used many by password analysis of the ZIP directly to a CPU after Core i5 and Core i7 [³].

But coding of the ZIP includes plural methods, and it is only part that a calculation of CRC32 is effective. In addition, the password analysis by brute force attack is carried out in PDF and Office (Excel, Word), but as much as a password to become the answer is complicated, analysis time gets longer and may suffer for several years from a few days.

In the official site, it is a CPU: Core i7 920/ video card: When I use GeForce GTX 590x2, six columns of passwords called "passwd" are written down without taking time if analysis is possible. On the other hand, when I analyze the password including the big things and small things alphanumeric character of eight characters and the sign according to the test calculation that Lockdown.co.uk^[4] performed in 2009, there are the data called 83.5 days with a super computer in a computer cluster with a high efficiency personal computer for 2.25 years for 23 years, and the password analysis with the complexity in low specifications may become difficult by the brute force attack.

Product

Only in the Internet, a package and downloading sale are carried out without being sold at the store. Because limitation is imposed on contents and a function, it is timely with the product with the function as high as possible, and it is listed in the page of internal Corporation that is a sales company that it is not performed than the thought that I want to provide selling it over the count. ^[5]

I was placed with PC-Webzine^[6]2011 ten a year month issue in the media.

It supports Windows XP/Vista/7/8. It is not shown last that the exhibition of the update patch was released on July 8, 2013. ^[7]

Footnote

1. ^ pass getter free copy (outside link)
2. ^ official site (outside link)
3. ^ Fast CRC Computation for iSCSI Polynomial Using CRC32 Instruction (outside link) - April 2011 (archive as of February 27, 2012)
4. ^ Lockdown.co.uk (outside link)
5. ^ official site (outside link)
6. ^ PC-WEBZINE (outside link)
7. ^ pass getter support page (outside link)

Outside link

• Internal

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This article is taken from the Japanese Wikipedia Pass getter

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