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numerous fixes

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This commit is contained in:
Christoph Prüßner 2014-05-03 17:18:23 +02:00
parent c326654f14
commit 4e6bb38260
2 changed files with 8 additions and 8 deletions
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4
src/Makefile
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@ -37,8 +37,8 @@ endif
LIBS += -L. LIBS += -L.
# objects # objects
PQC_OBJS = rand.o poly.o mem.o PQC_OBJS = rand.o poly.o mem.o ntru_decrypt.o
PQC_HEADERS = err.h rand.h poly.h context.h PQC_HEADERS = err.h rand.h poly.h context.h ntru_decrypt.h
# CUNIT_OBJS = cunit.o # CUNIT_OBJS = cunit.o
# includes # includes

12
src/ntru_decrypt.c
View File

@ -20,8 +20,6 @@
*/ */
#include "ntru_decrypt.h" #include "ntru_decrypt.h"
#include "poly.h"
#include "context.h"
/* /*
* Legend * Legend
@ -42,11 +40,13 @@ pb_poly* ntru_decrypt(pb_poly *encr_msg, pb_poly *private_key, pb_poly *Fp, ntru
unsigned int q = context->q; unsigned int q = context->q;
unsigned int p = context->p; unsigned int p = context->p;
unsigned int N = context->N; unsigned int N = context->N;
unsigned int i;
// StarMultiply(f, e, a, N, q) // StarMultiply(f, e, a, N, q)
pb_poly *a = build_polynom(NULL, N, context); pb_poly *a = build_polynom(NULL, N, context);
pb_starmultiply(private_key, encr_msg, a, context, q); pb_starmultiply(private_key, encr_msg, a, context, q);
printf("%s\n", "Nach dem StarMultiply: ");
draw_polynom(a);
mp_int mp_q; mp_int mp_q;
mp_int mp_qdiv2; mp_int mp_qdiv2;
mp_int zero; mp_int zero;
@ -56,10 +56,10 @@ pb_poly* ntru_decrypt(pb_poly *encr_msg, pb_poly *private_key, pb_poly *Fp, ntru
init_integer(&zero); init_integer(&zero);
MP_SET_INT(&mp_q, q); MP_SET_INT(&mp_q, q);
mp_div_2(&mp_q, mp_qdiv2); mp_div_2(&mp_q, &mp_qdiv2);
mp_zero(&zero); mp_zero(&zero);
for(int i = 0, i < N, i++){ for(i = 0; i < N; i++){
if(mp_cmp(&(a->terms[i]),&zero) == MP_LT) { // Make all coefficients positive if(mp_cmp(&(a->terms[i]),&zero) == MP_LT) { // Make all coefficients positive
//a->terms[i] = a->terms[i] + q; //a->terms[i] = a->terms[i] + q;
mp_add((&a->terms[i]),&mp_q,(&a->terms[i])); mp_add((&a->terms[i]),&mp_q,(&a->terms[i]));
@ -73,7 +73,7 @@ pb_poly* ntru_decrypt(pb_poly *encr_msg, pb_poly *private_key, pb_poly *Fp, ntru
pb_poly *d = build_polynom(NULL, N, context); pb_poly *d = build_polynom(NULL, N, context);
// StarMultiply(a, Fp , d, N, p) // StarMultiply(a, Fp , d, N, p)
pb_starmultiply(a, Fp, d, N, p); pb_starmultiply(a, Fp, d, context, p);
// {Decode returns the decrypted message, d, through the argument list.} // {Decode returns the decrypted message, d, through the argument list.}
return d; return d;