Hello, When I use the provided example of bls.cpp. There is a segfault that I have traced to the destructor of PFC. Am I missing something? What is being destructed that doesn't exist? Thanks, taybart

hello, I am trying to install miracl in OSX from this link https://github.com/jkhoury/MIRACL/blob/enhancement-1/README-makefile.txt

When I try to generate KSS curve (Line number 39) in link, I am getting error of
error: use of undeclared identifier 'to_binary' to_binary(y,bytes_per_big,&bytes[j],TRUE);

Help please, how to solve it. Because I am trying to install java version of miracl from this link https://dsl-external.bbn.com/tracsvr/openP3S/wiki/jmiracl

But as of now, I am not able to generate library for kss curve, I am stuck.

Please help.

Thanks.

Is there a way to do serialization in Miracl? Some Encryption Systems like ABE and broadcast encryption the cipher is the elements in G1 or GT. I want to separate the encryption process and decryption process in the example program https://github.com/miracl/MIRACL/blob/master/source/curve/pairing/cpabe.cpp to two program . So I think I should dump the Big object and G1 , GT object to a file in encryption program and reload it in Decryption program . Is there a method in Miracl can do this kind of work.

调用miracl库计算点乘时，得出的计算结果不正确，不知错误在哪里？哪位大神能帮忙指点下吗？非常感谢。实现源码如下： p1 = epoint_init(); pa = epoint_init();

mip->IOBASE=16;
cinstr(Para_a, "00");
cinstr(Para_b, "05");
cinstr(Prime_p, "B640000002A3A6F1D603AB4FF58EC74521F2934B1A7AEEDBE56F9B27E351457D");
cinstr(Order_n, "B640000002A3A6F1D603AB4FF58EC74449F2934B18EA8BEEE56EE19CD69ECF25");
cinstr(P1_x, "93DE051D62BF718FF5ED0704487D01D6E1E4086909DC3280E8C4E4817C66DDDD");
cinstr(P1_y, "21FE8DDA4F21E607631065125C395BBC1C1C00CBFA6024350C464CD70A3EA616");
cinstr(k1, "01EDEE3778F441F8DEA3D9FA0ACC4E07EE36C93F9A08618AF4AD85CEDE1C22");

ecurve_init(Para_a, Para_b, Prime_p, MR_AFFINE);
p1->marker = MR_EPOINT_NORMALIZED; 
epoint_set(P1_x, P1_y, 0, p1);

ecurve_mult(k1, p1, pa);
cotnum(k1, stdout); 
cotnum(p1->X, stdout);  
cotnum(p1->Y, stdout);
cotnum(pa->X, stdout);  
cotnum(pa->Y, stdout);

Hi,

We have completed the implementation of R-ate and now we are verifying its correctness. But we find that once we modify the parameters in the file , it can not meet the properties of bilinearity. Can you give me some advices?

Parameters in our implementation

Our parameters are set in advance. They just like this:

• BN curve: y^2= x^3+b,b=5
• Tower extension :1-2-4-12
• The characteristic p of the prime field, the group order r, and the trace of Frobenius t_r of the curve are parametrized as follows: We can easily find that our parameters are quiet similar except t and b.

problem

we set the point P and Q to a constant value and modify parameter t and b in in ake12bnx.cpp.Then our result are the same. But we find that it can not meet the properties of bilinearity of the R-ate Pairing. In fact ,we find in this case.

However, it meets the properties of bilinearity perfectly if we just use the original parameters in your file. That is to say, we will go wrong if we modify the parameters in your file.

I wonder if there exists some combination between t and b ?Or any other reasons ?Can you give me some advices?

Thank you!

If an elliptic curve is initialiazed and then the function prepare_monty is called then the following elliptic curve computations will be wrong. Here an example of this bug:

int main(void) {

    big x,y,a,p,b, d, order, n0;
    epoint *g,*w;

    mip=mirsys(8/4,16);
    mip->IOBASE=10;

    // Dummy curve
    a = mirvar(1);
    b = mirvar(44);
    p = mirvar(229);
    x = mirvar(5);
    y = mirvar(116);
    order = mirvar(239);
    d=mirvar(4);
    n0 = mirvar(23);

    ecurve_init(a, b, p, MR_PROJECTIVE);  /* initialise curve */
    g = epoint_init();
    w = epoint_init();

    if (!epoint_set(x,y,0,g)) /* initialise point */
    {
        printf("1. Problem - point (x,y) is not on the curve\n");
        return 0;
    }

    // Multiplication
    ecurve_mult(d,g,w);
    epoint_get(w, x, y);
    cotnum(x, stdout);

    // Montgomery Modulus
    prepare_monty(n0);

    // Multiplication again
    ecurve_mult(d,g,w);
    epoint_get(w, x, y);
    cotnum(x, stdout);
    return 0;
}

This programm will output

156
12

if you comment the line containing prepare_monty function it will output:

156
156

I'm trying to test the compiled miracl.a with the following cpp code:

extern "C" {
  #include "miracl.h"
  #include <stdio.h>
}
extern BOOL  nxprime(_MIPT_ big,big);
extern flash mirvar(_MIPD_ int iv);
extern miracl *mirsys(int,mr_small);

#include <iostream>


int main() {
  big a;
  miracl *mip = mirsys(5000,10);
  a = mirvar(5);
  std::cout << a->len << std::endl;
}

I get the following compiler output

g++ -m64 -O2 __test__.cpp miracl.a -o test
Undefined symbols for architecture x86_64:
  "_mirsys", referenced from:
      _main in __test__-1328d4.o
  "_mirvar", referenced from:
      _main in __test__-1328d4.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Please help can't figure out how to use nxprime Here's the question on StackOverflow https://stackoverflow.com/questions/31218430/generating-primes-with-nxprime

I'm trying to compile this library for this architecture: uname -a: Linux localhost.localdomain 4.4.0-1030-raspi2 #37-Ubuntu SMP Thu Oct 20 15:06:25 UTC 2016 armv7l armv7l armv7l GNU/Linux

However, I saw the arm.txt but I don't understand which modifications are necessary . In the case of different archs 64 or 32 bits , you have two libs : linux and linux64, but for ARM what is the solution?

Using OS X Yosemite 10.10.1 there are some problems when trying to compile.

First using the Makefile:

$ make
gcc -c -O2 -I. -I/usr/lib   -c -o mrflsh4.o mrflsh4.c
…
gcc -c -O2 -I. -I/usr/lib   -c -o mrcore.o mrcore.c
as   -o mrmuldv.o mrmuldv.s
ar crv miracl.a mrflsh4.o mrflsh3.o mrflsh2.o mrpi.o mrflsh1.o mrio2.o mrio1.o mrdouble.o mrflash.o mrrand.o mrprime.o mrcrt.o mrscrt.o mrfast.o mrjack.o mrfrnd.o mrxgcd.o mrgcd.o mrstrong.o mrbrick.o mrebrick.o mrcurve.o mrshs256.o mrshs512.o mrfpe.o mrsha3.o mrshs.o mraes.o mrgcm.o mrround.o mrbuild.o mrarth3.o mrbits.o mrarth2.o mrpower.o mrsroot.o mrec2m.o mrgf2m.o mrlucas.o mrzzn2.o mrzzn2b.o mrzzn3.o mrecn2.o mrmonty.o mralloc.o mrarth1.o mrarth0.o mrsmall.o mrcore.o mrmuldv.o 
r - mrflsh4.o
…
r - mrmuldv.o
gcc -c -O2 -I. -I/usr/lib   -c -o hail.o hail.c
make: *** No rule to make target `/usr/lib/libm.a', needed by `hail'.  Stop.

It seems to want to reference libm.a which is not an OS X library to my knowledge.

Next I tried to compile using the tips from the documentation:

$ gcc -c -O2 -I. -I/miracl.a hail.c -o hail
$ chmod +x hail
$ ./hail
-bash: ./hail: Malformed Mach-o file 

Not sure why things are getting malformed.

Lastly I tried omitting the -c -O2 flags:

$ gcc -arch i386 -arch x86_64 -I. -I/miracl.a hail.c -o hail
Undefined symbols for architecture i386:
  "_copy", referenced from:
      _main in hail-8a8ae1.o
  "_incr", referenced from:
      _main in hail-8a8ae1.o
  "_innum", referenced from:
      _main in hail-8a8ae1.o
  "_mirsys", referenced from:
      _main in hail-8a8ae1.o
  "_mirvar", referenced from:
      _main in hail-8a8ae1.o
  "_mr_compare", referenced from:
      _main in hail-8a8ae1.o
  "_otnum", referenced from:
      _main in hail-8a8ae1.o
  "_premult", referenced from:
      _main in hail-8a8ae1.o
  "_size", referenced from:
      _main in hail-8a8ae1.o
  "_subdiv", referenced from:
      _main in hail-8a8ae1.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Regardless of whether it's i386 or x86_64 compiling without the flags always fails with undefined symbols.

Are there additional libraries that are required for MIRACL on OS X that I'm not aware of? I would really like to get this running, although I've come up empty.

After following all the instruction for installing miracl , I tried running the first sample program for testing and have gotten the following error. MIRACL error from routine mirsys called from your program Base must be binary (MR_ALWAYS_BINARY defined in mirdef.h ?)

Any idea where I went wrong?

The sample program I'm talking about

#include <stdio.h>
#include "miracl.h"
/* include MIRACL system */

void main()
{ /* calculate factorial of number */
    big nf;
    /* declare "big" variable nf */
    int n;
    miracl *mip=mirsys(5000,10);

    // nf=mirvar(1);

    printf("factorial program\n");
    printf("input number n= \n");
    scanf("%d",&n);
    getchar();
    
    while (n>1)
        premult(nf,n--,nf);

    printf("n!= \n");
    otnum(nf,stdout); /* output result */

}

I read 'first.txt' and ran the program.

1. unzip -j -aa -L MIRACL-master.zip

2. bash linux However, there was a problem here. gcc: error: unrecognized command line option ‘-m32’; did you mean ‘-mbe32’?

I'd appreciate it if you could tell me how to solve it.

raspberry pi4 Model B 8gb

processor : 0 model name : ARMv7 Processor rev 3 (v7l) BogoMIPS : 108.00 Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xd08 CPU revision : 3

processor : 1 model name : ARMv7 Processor rev 3 (v7l) BogoMIPS : 108.00 Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xd08 CPU revision : 3

processor : 2 model name : ARMv7 Processor rev 3 (v7l) BogoMIPS : 108.00 Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xd08 CPU revision : 3

processor : 3 model name : ARMv7 Processor rev 3 (v7l) BogoMIPS : 108.00 Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xd08 CPU revision : 3

Hardware : BCM2711 Revision : d03114 Serial : 100000002327a1d1 Model : Raspberry Pi 4 Model B Rev 1.4