From 067ba4a39729f1e33b41c60c826274a4c4c38b8d Mon Sep 17 00:00:00 2001
From: tomsmeding <tom.smeding@gmail.com>
Date: Sat, 8 Oct 2016 22:15:26 +0200
Subject: Lib-ify

---
 .gitignore |   2 +-
 Makefile   |  16 ++---
 main.cpp   | 240 -------------------------------------------------------------
 3 files changed, 8 insertions(+), 250 deletions(-)
 delete mode 100644 main.cpp

diff --git a/.gitignore b/.gitignore
index 89805cd..cdd3cd9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
 *.o
 *.dSYM
-main
+cryptolib.a
 *.txt
diff --git a/Makefile b/Makefile
index 5778290..87bf616 100644
--- a/Makefile
+++ b/Makefile
@@ -1,28 +1,26 @@
 CXX = g++
 CXXFLAGS = -Wall -Wextra -std=c++0x -fwrapv
-LDFLAGS =
 ifneq ($(DEBUG),)
 	CXXFLAGS += -g
 else
 	CXXFLAGS += -O2
 endif
-ifeq ($(shell uname),Linux)
-	LDFLAGS += -lbsd
-endif
-BIN = main
+
+LIBNAME = cryptolib.a
+
 
 .PHONY: all clean remake
 
-all: $(BIN)
+all: $(LIBNAME)
 
 clean:
-	rm -rf $(BIN) *.o *.dSYM
+	rm -rf $(LIBNAME) *.o
 
 remake: clean all
 
 
-$(BIN): $(patsubst %.cpp,%.o,$(wildcard *.cpp))
-	$(CXX) -o $@ $^ $(LDFLAGS)
+$(LIBNAME): $(patsubst %.cpp,%.o,$(wildcard *.cpp))
+	ar -cr $@ $^
 
 %.o: %.cpp $(wildcard *.h)
 	$(CXX) $(CXXFLAGS) -c -o $@ $<
diff --git a/main.cpp b/main.cpp
deleted file mode 100644
index 2385da8..0000000
--- a/main.cpp
+++ /dev/null
@@ -1,240 +0,0 @@
-#include <iostream>
-#include <fstream>
-#include <sstream>
-#include <stdexcept>
-#include <algorithm>
-#include <cstdlib>
-#include <cctype>
-#include <ctime>
-#include <cassert>
-#include "aes.h"
-#include "base64.h"
-#include "bigint.h"
-#include "envelope.h"
-#include "numalgo.h"
-#include "primes.h"
-#include "rng.h"
-#include "rsa.h"
-
-using namespace std;
-
-class eof_error : public runtime_error{
-public:
-	eof_error()
-		:runtime_error("EOF"){}
-};
-
-int64_t rand64(){
-	return ((int64_t)rand()<<32)+(((int64_t)rand()%2)<<31)+rand();
-}
-
-Bigint readevalexpr(istream &is){
-	Bigint a;
-	is>>a;
-	if(is.eof())throw eof_error();
-	// cerr<<"Read "<<a<<endl;
-	if(!is.fail())return a;
-	is.clear();
-	string s;
-	is>>s;
-	assert(!is.fail());
-	a=readevalexpr(is);
-	Bigint b=readevalexpr(is);
-	//cerr<<"Operation "<<s<<" on "<<a<<" and "<<b<<endl;
-	if(s=="add")return a+b;
-	else if(s=="sub")return a-b;
-	else if(s=="mul")return a*b;
-	else if(s=="div")return a.divmod(b).first;
-	else if(s=="mod")return a.divmod(b).second;
-	else {
-		cerr<<"Unknown operation '"<<s<<'\''<<endl;
-		assert(false);
-	}
-}
-
-void biginttest(){
-	srand(time(NULL));
-
-	// cerr<<Bigint(599428191)*Bigint(10)<<endl;
-	// cerr<<hex<<Bigint(599428191)*Bigint(10)<<endl;
-
-#if 1
-	{
-		Bigint bi;
-		assert(RAND_MAX==(1U<<31)-1);
-		for(int i=0;i<500000;i++){
-			int64_t a=rand64(),b=rand64();
-			if(a+b<0){i--; continue;}
-			stringstream s1,s2,s3;
-			s1<<a+b;
-			s2<<Bigint(a+b);
-			s3<<Bigint(a)+Bigint(b);
-			assert(s1.str()==s2.str()&&s1.str()==s3.str());
-		}
-	}
-#endif
-
-#if 1
-	{
-		for(int i=0;i<1000;i++){
-			int64_t n=rand64();
-			istringstream ss(to_string(n));
-			Bigint bi;
-			ss>>bi;
-			assert(bi==Bigint(n));
-		}
-	}
-#endif
-
-#if 1
-	{
-		string s="4405994068155852661780322209877856931246944549396705884037139443014164958640201650440984581318995014";
-		istringstream iss(s);
-		Bigint bi;
-		iss>>bi;
-		uint32_t digs[11]={1752788038,953502834,2175607868,1627159508,1754291416,1207689192,3196357285,3165170272,3313904421,3194703103,2062};
-		for(int i=0;i<11;i++)assert(bi._digit(i)==digs[i]);
-		ostringstream oss;
-		oss<<bi;
-		assert(oss.str()==s);
-	}
-#endif
-}
-
-void repl(int argc,char **argv){
-	istream *in;
-	if(argc==2)in=new ifstream(argv[1]);
-	else in=&cin;
-	for(int i=0;;i++){
-		try {
-			cout<<readevalexpr(*in)<<endl;
-		} catch(eof_error){
-			break;
-		}
-	}
-	if(in!=&cin)delete in;
-}
-
-void testisqrt(int argc,char **argv){
-	int randsize=argc==2?strtol(argv[1],nullptr,10):1;
-	assert(randsize>=1);
-	for(int i=0;i<1000;i++){
-		Bigint n(rand64());
-		for(int j=1;j<randsize;j++){
-			n<<=63;
-			n+=rand64();
-		}
-		// cout<<hex<<n<<dec<<endl;
-		Bigint root(isqrt(n));
-		assert(root*root<=n);
-		root+=Bigint::one;
-		assert(root*root>n);
-	}
-}
-
-void performrsa(){
-	RSA::PrivateKey privkey;
-	Bigint p(1000000007),q(3000000019U);
-	privkey.pub.mod=(int64_t)3000000040000000133LL;
-	privkey.pub.exp=65537;
-	{
-		Bigint x;
-		egcd((p-Bigint::one)*(q-Bigint::one),privkey.pub.exp,x,privkey.pexp);
-	}
-	cout<<"d = "<<privkey.pexp<<endl;
-	Bigint msg(123456789);
-	cout<<"msg = "<<msg<<endl;
-	Bigint encr=RSA::encrypt(msg,privkey.pub);
-	cout<<"encr = "<<encr<<endl;
-	Bigint msg2=RSA::decrypt(encr,privkey);
-	cout<<"msg = "<<msg2<<endl;
-}
-
-void pseudolist(bool(*func)(const Bigint&)){
-	fillsmallprimes();
-	for(int i=2;i<65000;i++){
-		// cerr<<"TRYING "<<i<<endl;
-		bool actualprime=binary_search(smallprimes.begin(),smallprimes.end(),i);
-		if(!func(Bigint(i))){
-			if(actualprime){
-				cerr<<"Test misleadingly said that "<<i<<" isn't prime, while it is!"<<endl;
-				exit(1);
-			}
-			continue;
-		}
-		if(!actualprime)cout<<i<<' ';
-	}
-	cout<<endl;
-}
-
-void listprimes(){
-	int n=0;
-	Bigint x(3);
-	x*=x;
-	x*=x;
-	x*=x;
-	x*=x;
-	x*=x;
-	x*=x;
-	x*=x;
-	Bigint y(x+10000);
-	cout<<x<<' '<<y<<endl;
-	for(Bigint i(x);i<=y;i+=1){
-		if(bailliePSW(i)){
-			cout<<i<<endl;
-			n++;
-		}
-	}
-	cout<<n<<endl;
-}
-
-int main(int argc,char **argv){
-	(void)argc;
-	(void)argv;
-	// biginttest();
-	// repl(argc,argv);
-	// performrsa();
-	// testisqrt(argc,argv);
-	// randprime(Bigint(20),Bigint(42));
-	// strongLucasPrime(Bigint(5));
-	// cout<<strongLucasPrime(Bigint(5777))<<endl;
-	// pseudolist(strongPseudoPrime2);
-	// pseudolist(strongLucasPrime);
-	// listprimes();
-
-	// Rng rng("wachtwoord");
-	// for(int i=0;i<100000;i++)cout<<rng.get()<<endl;
-
-	// for(int i=0;i<10000;i++)cout<<arc4random()<<endl;
-
-	/*KeyRng rng("wachtwoord"); //for DieHarder
-	char data[4];
-	for(int i=0;i<10000000;i++){
-		*(uint32_t*)data=rng.get();
-		fwrite(data,1,4,stdout);
-	}*/
-
-	/*string s;
-	while(true){
-		char c=cin.get();
-		if(!cin)break;
-		s.push_back(c);
-	}
-	cout<<Base64::encode(s)<<endl;
-	// cout<<Base64::decode(s)<<flush;*/
-
-	// AES::test();
-	// cout<<Base64::encode(AES::encrypt("goeiemorgen dit is leuke data enzoo","123456789abcdefx",AES::AES_128_CBC))<<endl;
-	// cout<<AES::decrypt(Base64::decode("dv2N3n2FHsD7LU2PAZnZm/bLQQSaaZoDDFjy3VrSu2JCHN5KuyBlinlh9C71IGTbT4/WvRKLp6dp1TfrKXIG2w=="),"123456789abcdefx",AES::AES_128_CBC)<<endl;
-
-	RSA::PrivateKey privkey(RSA::genkey(2048,"goeiemorgen"));
-	cerr<<"privkey.pexp="<<privkey.pexp<<endl;
-	// stringstream ss("146142527763115590918816237475833862275078269531224490080731579415134484175830244922030574137988310092068583287060550616357026989772917226684940867892409");
-	// Bigint d;
-	// ss>>d;
-	// cout<<RSA::decrypt(d,privkey)<<endl;
-	string crypt(Envelope::encrypt("hallo hallo dit is leuke data enzo",privkey.pub));
-	cout<<Base64::encode(crypt)<<endl;
-	string decr(Envelope::decrypt(crypt,privkey));
-	cout<<decr<<endl;
-}
-- 
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