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Original file line number | Diff line number | Diff line change |
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/* | ||
* Copyright 2011 X-Scale. All rights reserved. | ||
* | ||
* Redistribution and use in source and binary forms, with or without | ||
* modification, are permitted provided that the following conditions are met: | ||
* | ||
* 1. Redistributions of source code must retain the above copyright notice, | ||
* this list of conditions and the following disclaimer. | ||
* 2. Redistributions in binary form must reproduce the above copyright | ||
* notice, this list of conditions and the following disclaimer in the | ||
* documentation and/or other materials provided with the distribution. | ||
* | ||
* THIS SOFTWARE IS PROVIDED BY X-Scale ``AS IS'' AND ANY EXPRESS OR IMPLIED | ||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | ||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | ||
* EVENT SHALL X-Scale OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, | ||
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | ||
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
* | ||
* The views and conclusions contained in the software and documentation are | ||
* those of the authors and should not be interpreted as representing official | ||
* policies, either expressed or implied, of X-Scale. | ||
* | ||
* This software provides an algorithm that emulates the protection scheme of | ||
* N64 PIF/CIC-NUS-6105, by determining the proper response to each challenge. | ||
* It was synthesized after a careful, exhaustive and detailed analysis of the | ||
* challenge/response pairs stored in the 'pif2.dat' file from Project 64. | ||
* These challenge/response pairs were the only resource used during this | ||
* project. There was no kind of physical access to N64 hardware. | ||
* | ||
* This project would have never been possible without the contribuitions of | ||
* the following individuals and organizations: | ||
* | ||
* - Oman: For being at the right place at the right time and being brave | ||
* enough to pay a personal price so we could understand in a much deeper | ||
* way how this magical console really works. We owe you so much. | ||
* | ||
* - Jovis: For all the positive energy and impressive hacking spirit that you | ||
* shared with the N64 community. You were absolutely instrumental in | ||
* several key events that shaped the N64 community in the last 14 years. | ||
* Even if you're not physically with us anymore, your heritage, your | ||
* knowledge and your attitude will never be forgotten. | ||
* | ||
* 'The candle that burns twice as bright burns half as long.' | ||
* | ||
* - LaC: For the endless contributions that you've given to the N64 community | ||
* since the early days, when N64 was the next big thing. I've always | ||
* admired the deep knowledge that you've gathered about the most little | ||
* hardware details. Recently, you challanged us to find a small and | ||
* concise algorithm that would emulate the behaviour of CIC-NUS-6105 | ||
* challenge/response protection scheme and here is the final result. | ||
* LaC, Oman and Jovis were definitly the dream team of N64 reversing in | ||
* the late 90's. Without your contributions, we would be much poorer. | ||
* | ||
* - marshall: For keeping the N64 scene alive during the last decade, when | ||
* most people lost interest and moved along to different projects. You | ||
* are the force that has been keeping us all together in the later | ||
* years. When almost nobody cared about N64 anymore, you were always | ||
* there, spreading the word, developing in the console, and lately, | ||
* making impressive advances on the hardware side. I wish the best | ||
* success to your new 64drive project. | ||
* | ||
* - hcs: For your contributions to the better understanding of the inner | ||
* workings of the Reality Co-Processor (RCP). Your skills have impressed | ||
* me for a long time now. And without your precious help by sharing your | ||
* kownledge, I would have never understood the immense importance of | ||
* Oman, Jovis and LaC achievements. Thank you ! | ||
* | ||
* - Azimer & Tooie: For sharing with the N64 community your findings about the | ||
* challenge/response pair used in 'Jet Force Gemini' and the 267 | ||
* challenge/response pairs used in 'Banjo Tooie', all stored in the | ||
* 'pif2.dat' file of Project 64. They were instrumental to the final | ||
* success of this endeavour. | ||
* | ||
* - Silicon Graphics, Inc. (SGI): For creating MIPS R4000, MIPS R4300 and | ||
* Reality Co-Processor (RCP). You were the ultimate dream creator during | ||
* the late 80's and early 90's. A very special word of gratitude goes to | ||
* the two teams that during those years created RCP and MIPS R4300. They | ||
* were technological breakthroughs back then. | ||
* | ||
* On a personal note, I would like to show my deepest gratitude to _Bijou_, | ||
* for being always a source of endless hope and inspiration. | ||
* | ||
* -= X-Scale =- (#n64dev@EFnet) | ||
*/ | ||
|
||
#include "n64_cic_nus_6105.h" | ||
|
||
void n64_cic_nus_6105(char chl[], char rsp[], int len) | ||
{ | ||
static char lut0[0x10] = { | ||
0x4, 0x7, 0xA, 0x7, 0xE, 0x5, 0xE, 0x1, | ||
0xC, 0xF, 0x8, 0xF, 0x6, 0x3, 0x6, 0x9 | ||
}; | ||
static char lut1[0x10] = { | ||
0x4, 0x1, 0xA, 0x7, 0xE, 0x5, 0xE, 0x1, | ||
0xC, 0x9, 0x8, 0x5, 0x6, 0x3, 0xC, 0x9 | ||
}; | ||
char key, *lut; | ||
int i, sgn, mag, mod; | ||
|
||
for (key = 0xB, lut = lut0, i = 0; i < len; i++) { | ||
rsp[i] = (key + 5 * chl[i]) & 0xF; | ||
key = lut[(int) rsp[i]]; | ||
sgn = (rsp[i] >> 3) & 0x1; | ||
mag = ((sgn == 1) ? ~rsp[i] : rsp[i]) & 0x7; | ||
mod = (mag % 3 == 1) ? sgn : 1 - sgn; | ||
if (lut == lut1 && (rsp[i] == 0x1 || rsp[i] == 0x9)) | ||
mod = 1; | ||
if (lut == lut1 && (rsp[i] == 0xB || rsp[i] == 0xE)) | ||
mod = 0; | ||
lut = (mod == 1) ? lut1 : lut0; | ||
} | ||
} | ||
|
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,98 @@ | ||
/* | ||
* Copyright 2011 X-Scale. All rights reserved. | ||
* | ||
* Redistribution and use in source and binary forms, with or without | ||
* modification, are permitted provided that the following conditions are met: | ||
* | ||
* 1. Redistributions of source code must retain the above copyright notice, | ||
* this list of conditions and the following disclaimer. | ||
* 2. Redistributions in binary form must reproduce the above copyright | ||
* notice, this list of conditions and the following disclaimer in the | ||
* documentation and/or other materials provided with the distribution. | ||
* | ||
* THIS SOFTWARE IS PROVIDED BY X-Scale ``AS IS'' AND ANY EXPRESS OR IMPLIED | ||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | ||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | ||
* EVENT SHALL X-Scale OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, | ||
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | ||
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
* | ||
* The views and conclusions contained in the software and documentation are | ||
* those of the authors and should not be interpreted as representing official | ||
* policies, either expressed or implied, of X-Scale. | ||
* | ||
* This software provides an algorithm that emulates the protection scheme of | ||
* N64 PIF/CIC-NUS-6105, by determining the proper response to each challenge. | ||
* It was synthesized after a careful, exhaustive and detailed analysis of the | ||
* challenge/response pairs stored in the 'pif2.dat' file from Project 64. | ||
* These challenge/response pairs were the only resource used during this | ||
* project. There was no kind of physical access to N64 hardware. | ||
* | ||
* This project would have never been possible without the contribuitions of | ||
* the following individuals and organizations: | ||
* | ||
* - Oman: For being at the right place at the right time and being brave | ||
* enough to pay a personal price so we could understand in a much deeper | ||
* way how this magical console really works. We owe you so much. | ||
* | ||
* - Jovis: For all the positive energy and impressive hacking spirit that you | ||
* shared with the N64 community. You were absolutely instrumental in | ||
* several key events that shaped the N64 community in the last 14 years. | ||
* Even if you're not physically with us anymore, your heritage, your | ||
* knowledge and your attitude will never be forgotten. | ||
* | ||
* 'The candle that burns twice as bright burns half as long.' | ||
* | ||
* - LaC: For the endless contributions that you've given to the N64 community | ||
* since the early days, when N64 was the next big thing. I've always | ||
* admired the deep knowledge that you've gathered about the most little | ||
* hardware details. Recently, you challanged us to find a small and | ||
* concise algorithm that would emulate the behaviour of CIC-NUS-6105 | ||
* challenge/response protection scheme and here is the final result. | ||
* LaC, Oman and Jovis were definitly the dream team of N64 reversing in | ||
* the late 90's. Without your contributions, we would be much poorer. | ||
* | ||
* - marshall: For keeping the N64 scene alive during the last decade, when | ||
* most people lost interest and moved along to different projects. You | ||
* are the force that has been keeping us all together in the later | ||
* years. When almost nobody cared about N64 anymore, you were always | ||
* there, spreading the word, developing in the console, and lately, | ||
* making impressive advances on the hardware side. I wish the best | ||
* success to your new 64drive project. | ||
* | ||
* - hcs: For your contributions to the better understanding of the inner | ||
* workings of the Reality Co-Processor (RCP). Your skills have impressed | ||
* me for a long time now. And without your precious help by sharing your | ||
* kownledge, I would have never understood the immense importance of | ||
* Oman, Jovis and LaC achievements. Thank you ! | ||
* | ||
* - Azimer & Tooie: For sharing with the N64 community your findings about the | ||
* challenge/response pair used in 'Jet Force Gemini' and the 267 | ||
* challenge/response pairs used in 'Banjo Tooie', all stored in the | ||
* 'pif2.dat' file of Project 64. They were instrumental to the final | ||
* success of this endeavour. | ||
* | ||
* - Silicon Graphics, Inc. (SGI): For creating MIPS R4000, MIPS R4300 and | ||
* Reality Co-Processor (RCP). You were the ultimate dream creator during | ||
* the late 80's and early 90's. A very special word of gratitude goes to | ||
* the two teams that during those years created RCP and MIPS R4300. They | ||
* were technological breakthroughs back then. | ||
* | ||
* On a personal note, I would like to show my deepest gratitude to _Bijou_, | ||
* for being always a source of endless hope and inspiration. | ||
* | ||
* -= X-Scale =- (#n64dev@EFnet) | ||
*/ | ||
|
||
#ifndef N64_CIC_NUS_6105_H | ||
#define N64_CIC_NUS_6105_H | ||
|
||
#define CHL_LEN 0x20 | ||
|
||
void n64_cic_nus_6105(char chl[], char rsp[], int len); | ||
|
||
#endif /* N64_CIC_NUS_6105_H */ |
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