70 lines
1.8 KiB
Plaintext
70 lines
1.8 KiB
Plaintext
/* This file has been generated from Jehanne with
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* a port of mpc from 9front
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*
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* To regenerate use:
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* mpc file.mp > file.mpc
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*/
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void spake2ee_h2P(mpint *p, mpint *a, mpint *d, mpint *h, mpint *PX, mpint *PY, mpint *PZ, mpint *PT){
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mpint *n = mpnew(0);
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mpassign(mptwo, n);
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for(;;){
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mpint *tmp1 = mpnew(0);
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legendresymbol(n, p, tmp1);
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mpint *tmp2 = mpnew(0);
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mpassign(mpone, tmp2);
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tmp2->sign = -1;
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if(mpcmp(tmp1, tmp2) != 0){
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mpadd(n, mpone, n);
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}else{
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mpfree(tmp2);
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mpfree(tmp1);
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break;
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}
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mpfree(tmp1);
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mpfree(tmp2);
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}
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mpint *tmp3 = mpnew(0);
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mpmod(h, p, tmp3);
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elligator2(p, a, d, n, tmp3, PX, PY, PZ, PT);
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mpfree(tmp3);
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mpfree(n);
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}
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void spake2ee_1(mpint *p, mpint *a, mpint *d, mpint *x, mpint *GX, mpint *GY, mpint *PX, mpint *PY, mpint *PZ, mpint *PT, mpint *y){
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mpint *T = mpnew(0);
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mpint *Z = mpnew(0);
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mpint *Y = mpnew(0);
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mpint *X = mpnew(0);
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mpint *tmp1 = mpnew(0);
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mpmodmul(GX, GY, p, tmp1);
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edwards_scale(p, a, d, x, GX, GY, mpone, tmp1, X, Y, Z, T);
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mpfree(tmp1);
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edwards_add(p, a, d, X, Y, Z, T, PX, PY, PZ, PT, X, Y, Z, T);
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decaf_encode(p, a, d, X, Y, Z, T, y);
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mpfree(T);
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mpfree(Z);
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mpfree(Y);
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mpfree(X);
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}
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void spake2ee_2(mpint *p, mpint *a, mpint *d, mpint *PX, mpint *PY, mpint *PZ, mpint *PT, mpint *x, mpint *y, mpint *ok, mpint *z){
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mpint *T = mpnew(0);
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mpint *Z = mpnew(0);
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mpint *Y = mpnew(0);
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mpint *X = mpnew(0);
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decaf_decode(p, a, d, y, ok, X, Y, Z, T);
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if(mpcmp(ok, mpzero) != 0){
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mpint *tmp1 = mpnew(0);
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mpmodsub(mpzero, PX, p, tmp1);
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mpint *tmp2 = mpnew(0);
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mpmodsub(mpzero, PT, p, tmp2);
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edwards_add(p, a, d, X, Y, Z, T, tmp1, PY, PZ, tmp2, X, Y, Z, T);
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mpfree(tmp1);
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mpfree(tmp2);
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edwards_scale(p, a, d, x, X, Y, Z, T, X, Y, Z, T);
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decaf_encode(p, a, d, X, Y, Z, T, z);
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}
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mpfree(T);
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mpfree(Z);
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mpfree(Y);
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mpfree(X);
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}
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