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fix Makefile and README.md for 2012/grothe

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Landon Curt Noll committed 2023-03-23 22:38:13 -07:00
1 parent ea9e4ce570
commit 4e9f76f482
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+57 -48
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2012/grothe/Makefile
+9 -10
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@@ -62,8 +62,8 @@ X11_INCDIR= /opt/X11/include
# Common C compiler warnings to silence # Common C compiler warnings to silence
# #
CSILENCE= #CSILENCE=
#CSILENCE= -Wno-implicit-int CSILENCE= -Wno-error -Wno-implicit-function-declaration -Wno-unused-value
# Common C compiler warning flags # Common C compiler warning flags
# #
@@ -101,8 +101,8 @@ CINCLUDE=
#CINCLUDE= -include stdlib.h #CINCLUDE= -include stdlib.h
#CINCLUDE= -include stdio.h #CINCLUDE= -include stdio.h
#CINCLUDE= -include stdlib.h -include stdio.h #CINCLUDE= -include stdlib.h -include stdio.h
#CINCLUDE= -I ${X11_INCDIR} #CINCLUDE= -I ${X11_INCDIR} -I ${X11_INCDIR}/X11
#CINCLUDE= -I ${HOMEBREW_PREFIX}/include/SDL2 #CINCLUDE= `${SDL2_CONFIG} --cflags`
# Optimization # Optimization
# #
@@ -126,7 +126,7 @@ CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
LIBS= LIBS=
#LIBS= -lm #LIBS= -lm
#LIBS= -L ${X11_LIBDIR} -lX11 #LIBS= -L ${X11_LIBDIR} -lX11
#LIBS= -L ${HOMEBREW_PREFIX}/lib -lSDL2 #LIBS= `${SDL2_CONFIG} --libs`
# C compiler to use # C compiler to use
# #
@@ -138,9 +138,9 @@ CC= cc
# #
ifeq ($(CC),clang) ifeq ($(CC),clang)
# #
CSILENCE+= -Wno-comma -Wno-missing-noreturn -Wno-missing-prototypes \ CSILENCE+= -Wno-comma -Wno-missing-prototypes -Wno-missing-variable-declarations \
-Wno-missing-variable-declarations -Wno-poison-system-directories \ -Wno-poison-system-directories -Wno-shadow -Wno-missing-noreturn \
-Wno-shadow -Wno-unreachable-code -Wno-unreachable-code
# #
CWARN+= -Weverything CWARN+= -Weverything
# #
@@ -166,7 +166,7 @@ PROG= ${ENTRY}
# #
OBJ= ${PROG}.o OBJ= ${PROG}.o
DATA= cookie_piece1.dat cookie_piece2.dat cookie_piece3.dat \ DATA= cookie_piece1.dat cookie_piece2.dat cookie_piece3.dat \
cookie_piece4.dat cookie_recipe.txt cookie_piece4.dat cookie_recipe.txt
TARGET= ${PROG} TARGET= ${PROG}
# #
ALT_OBJ= ALT_OBJ=
@@ -326,4 +326,3 @@ pluto: charon
@echo "dwarf is a type of planet" @echo "dwarf is a type of planet"
@echo "therefore, $@ is a planet" @echo "therefore, $@ is a planet"
@echo "having lots of planets is good feature because supernovae can help ${MAKE} a lot of them" @echo "having lots of planets is good feature because supernovae can help ${MAKE} a lot of them"
2012/grothe/README.md
+48 -38
View File
@@ -1,39 +1,46 @@
# Most conspiratorial # Most conspiratorial
Aaron Grothe Aaron Grothe
2205 South 51st Street 2205 South 51st Street
Omaha, NE 68106 Omaha, NE 68106
US US
<ajgrothe@yahoo.com> <ajgrothe@yahoo.com>
David Madore David Madore
<http://www.madore.org/~david/> <http://www.madore.org/~david/>
## To build: # To build:
make all ```sh
make
```
### To run: ### To run:
# To create a shared secret shared among M people with N+1 needed to reconstruct To create a shared secret shared among M people with N+1 needed to reconstruct:
./grothe -secret 1-/dev/urandom 2-/dev/urandom ... N-/dev/urandom \
1+shared1 2+shared2 ... M+sharedM
# To reconstruct the original (an arbitrary combination of N+1 or ```sh
# more shared files with their proper numbers) ./grothe -secret 1-/dev/urandom 2-/dev/urandom ... N-/dev/urandom 1+shared1 2+shared2 ... M+sharedM
./grothe I-sharedI J-sharedJ K-sharedK ... +reconstructed ```
To reconstruct the original (an arbitrary combination of N+1 or
more shared files with their proper numbers):
```sh
./grothe I-sharedI J-sharedJ K-sharedK ... +reconstructed
```
### Try: ### Try:
./grothe -grothe.c 1+grothe.c.1 2+grothe.c.2 ```sh
./grothe -grothe.c 1+grothe.c.1 2+grothe.c.2
./grothe -cookie_recipe.txt 1-/dev/urandom 2-/dev/urandom \ ./grothe -cookie_recipe.txt 1-/dev/urandom 2-/dev/urandom 1+cookie_piece1.dat 2+cookie_piece2.dat 3+cookie_piece3.dat 4+cookie_piece4.dat
1+cookie_piece1.dat 2+cookie_piece2.dat 3+cookie_piece3.dat 4+cookie_piece4.dat
./grothe 1-cookie_piece1.dat 2-cookie_piece2.dat 4-cookie_piece4.dat ./grothe 1-cookie_piece1.dat 2-cookie_piece2.dat 4-cookie_piece4.dat 4+cookie_recipe_restore.txt
+cookie_recipe_restore.txt ```
### Selected Judges Remarks: ## Judges' comments:
Also known as Best abuse of the judging process. Also known as Best abuse of the judging process.
@@ -63,7 +70,7 @@ into 3 parts and require two of them be available to extract the original recipe
Actually surprisingly useful for an IOCCC entry :-) Actually surprisingly useful for an IOCCC entry :-)
**Usage** ### Usage
To share a secret To share a secret
@@ -74,26 +81,30 @@ number of pieces - 2 + file to be shared
total number of pieces created by program 4 total number of pieces created by program 4
pieces needed to reassemble recipe 3 or greater pieces needed to reassemble recipe 3 or greater
**example usage** ### Example usage
\# to share secret into 4 pieces of which at least 3 will be needed to get back the recipe To share secret into 4 pieces of which at least 3 will be needed to get back the recipe:
./grothe \ ```sh
-cookie_recipe.txt ./grothe \
1-/dev/urandom 2-/dev/urandom -cookie_recipe.txt
1+cookie_piece1.dat 2+cookie_piece2.dat 3+cookie_piece3.dat 4+cookie_piece4.dat 1-/dev/urandom 2-/dev/urandom
1+cookie_piece1.dat 2+cookie_piece2.dat 3+cookie_piece3.dat 4+cookie_piece4.dat
```
\# put recipe back together using 1, 2 and 4th piece To put recipe back together using 1, 2 and 4th piece:
./grothe \ ```sh
1-cookie_piece1.dat 2-cookie_piece2.dat 4-cookie_piece4.dat ./grothe \
+cookie_recipe_restore.txt 1-cookie_piece1.dat 2-cookie_piece2.dat 4-cookie_piece4.dat
+cookie_recipe_restore.txt
```
**Limitations** ### Limitations
* program is limited to 256 input and output files and will slow down dramatically when you get past 20-50 inputs and outputs * program is limited to 256 input and output files and will slow down dramatically when you get past 20-50 inputs and outputs
**Obfuscations** ### Obfuscations
* nothing is done consistently throughout the program E.g i+=1, i=i+1, i++ and ++i are all used in the program. The mark of true code buggery. - "A foolish consistency is the hobgoblin of little minds" - Ralph Waldo Emerson * nothing is done consistently throughout the program E.g i+=1, i=i+1, i++ and ++i are all used in the program. The mark of true code buggery. - "A foolish consistency is the hobgoblin of little minds" - Ralph Waldo Emerson
* uses the most powerful obfuscation of all "Math". "Any sufficiently advanced cryptography is indistinguasble from magic" - Apologies to Arthur C. Clarke * uses the most powerful obfuscation of all "Math". "Any sufficiently advanced cryptography is indistinguasble from magic" - Apologies to Arthur C. Clarke
@@ -105,17 +116,16 @@ pieces needed to reassemble recipe 3 or greater
* use of #defines from stdio.h, stdlib.h for values \_STDIO\_H and EXIT\_SUCCESS used to represent 1 and 0 respectively in the program * use of #defines from stdio.h, stdlib.h for values \_STDIO\_H and EXIT\_SUCCESS used to represent 1 and 0 respectively in the program
* arrays only need to be 256x256 most are set to greater values than they need to be so trying to figure it out can be a bit tough * arrays only need to be 256x256 most are set to greater values than they need to be so trying to figure it out can be a bit tough
**References** ### References
* Shamir's Secret Sharing - <a href="http://en.wikipedia.org/wiki/Shamir%27s_Secret_Sharing">http://en.wikipedia.org/wiki/Shamir%27s_Secret_Sharing</a> * Shamir's Secret Sharing - <a href="http://en.wikipedia.org/wiki/Shamir%27s_Secret_Sharing">http://en.wikipedia.org/wiki/Shamir%27s_Secret_Sharing</a>
* David Madore's implementation of Shamir's Secret Sharing - <a href="http://www.madore.org/~david/programs/programs-1.36.html">http://www.madore.org/~david/programs/programs-1.36.html</a> * David Madore's implementation of Shamir's Secret Sharing - <a href="http://www.madore.org/~david/programs/programs-1.36.html">http://www.madore.org/~david/programs/programs-1.36.html</a>
* Steve's Recipe Database - source for the $25k Cookie Recipe - <a href="http://recipes.stevex.net/">http://recipes.stevex.net/</a> * Steve's Recipe Database - source for the $25k Cookie Recipe - <a href="http://recipes.stevex.net/">http://recipes.stevex.net/</a>
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