mirror of
https://github.com/noDRM/DeDRM_tools.git
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85 lines
3.7 KiB
Plaintext
85 lines
3.7 KiB
Plaintext
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/*
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Copyright 2010 BartSimpson aka skindle
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/*
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* Dependencies: zlib (included)
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* build on cygwin using make and the included make file
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* A fully functionaly windows executable is included
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*/
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/*
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* MUST be run on the computer on which KindleForPC is installed
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* under the account that was used to purchase DRM'ed content.
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* Requires your kindle.info file which can be found in something like:
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* <User home>\...\Amazon\Kindle For PC\{AMAwzsaPaaZAzmZzZQzgZCAkZ3AjA_AY}
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* where ... varies by platform but is "Local Settings\Application Data" on XP
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* skindle will attempt to find this file automatically.
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*/
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/*
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What: KindleForPC DRM removal utility to preserve your fair use rights!
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Why: Fair use is a well established doctrine, and I am no fan of vendor
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lockin.
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How: This utility implements the PID extraction, DRM key generation and
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decryption algorithms employed by the KindleForPC application. This
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is a stand alone app that does not require you to determine a PID on
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your own, and it does not need to run KindleForPC in order to extract
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any data from memory.
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Shoutz: The DarkReverser - thanks for mobidedrm! The last part of this
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is just a C port of mobidedrm.
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labba and I<3cabbages for motivating me to do this the right way.
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You guys shouldn't need to spend all your time responding to all the
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changes Amazon is going to force you to make in unswindle each time
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the release a new version.
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CMBDTC - nice work on the topaz break!
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Lawrence Lessig - You are my hero. 'Nuff said.
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Cory Doctorow - A voice of reason in a sea of insanity
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Thumbs down: Disney, MPAA, RIAA - you guys suck. Making billions off
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of the exploitation of works out of copyright while vigourously
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pushing copyright extension to prevent others from doing the same
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is the height of hypocrasy.
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Congress - you guys suck too. Why you arrogant pricks think you
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are smarter than the founding fathers is beyond me.
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*/
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Rationale:
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Need a tool to enable fair use of purchased ebook content.
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Need a tool that is not dependent on any particular version of
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KindleForPC and that does not need to run KindleForPC in order to
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extract a PID. The tool documents the structure of the kindle.info
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file and the data and algorthims that are used to derive per book
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PID values.
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Installing:
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A compiled binary is included. Though it was built using cygwin, it
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should not require a cygwin installation in order to run it. To build
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from source, you will need cygwin with gcc and make.
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This has not been tested with Visual Studio, though you may be able to
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pile all the files into a project and add the Crypt32.lib, Advapi32 and
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zlib1 dependencies to build it.
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usage: ./skindle [-d] [-v] -i <ebook file> -o <output file> [-k kindle.info file] [-p pid]
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-d optional, for topaz files only, produce a decompressed output file
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-i required name of the input mobi or topaz file
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-o required name of the output file to generate
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-k optional kindle.info path
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-v dump the contents of kindle.info
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-p additional PID values to attempt (can specifiy multiple times)
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You only need to specify a kindle.info path if skindle can't find
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your kindle.info file automatically |