debugging stuff removed from bigint
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ca25e57ca6
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96e930bbd2
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@ -29,9 +29,6 @@
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#include "bigint.h"
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#include <string.h>
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#include "bigint_io.h"
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#include "cli.h"
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#ifndef MAX
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#define MAX(a,b) (((a)>(b))?(a):(b))
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#endif
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@ -559,7 +556,6 @@ void bigint_sub_u_bitscale(bigint_t* a, const bigint_t* b, uint16_t bitscale){
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int16_t t;
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if(a->length_B < b->length_B+byteshift){
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cli_putstr_P(PSTR("\r\nERROR: bigint_sub_u_bitscale result negative"));
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bigint_set_zero(a);
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return;
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}
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@ -579,7 +575,6 @@ void bigint_sub_u_bitscale(bigint_t* a, const bigint_t* b, uint16_t bitscale){
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}
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while(borrow){
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if(i+1 > a->length_B){
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cli_putstr_P(PSTR("\r\nERROR: bigint_sub_u_bitscale result negative (2) shift="));
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cli_hexdump_rev(&bitscale, 2);
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bigint_set_zero(a);
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return;
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@ -597,13 +592,6 @@ void bigint_sub_u_bitscale(bigint_t* a, const bigint_t* b, uint16_t bitscale){
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void bigint_reduce(bigint_t* a, const bigint_t* r){
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uint8_t rfbs = GET_FBS(r);
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/*
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cli_putstr_P(PSTR("\r\nreduce "));
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bigint_print_hex(a);
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cli_putstr_P(PSTR(" % "));
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bigint_print_hex(r);
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cli_putstr_P(PSTR("\r\n"));
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*/
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if(r->length_B==0){
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return;
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@ -643,11 +631,9 @@ void bigint_expmod_u(bigint_t* dest, const bigint_t* a, const bigint_t* exp, con
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i=exp->length_B-1;
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if(exp->wordv[i]!=1){
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for(j=1<<(GET_FBS(exp)-1); j>0; j>>=1){
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// cli_putc('Q');
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bigint_square(&tmp2, &tmp);
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bigint_reduce(&tmp2, r);
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if(exp->wordv[i]&j){
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// cli_putc('M');
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bigint_mul_u(&tmp, &tmp2, &x);
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bigint_reduce(&tmp, r);
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}else{
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@ -657,11 +643,9 @@ void bigint_expmod_u(bigint_t* dest, const bigint_t* a, const bigint_t* exp, con
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}
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for(--i; i>=0; --i){
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for(j=0x80; j>0; j>>=1){
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// cli_putc('q');
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bigint_square(&tmp2, &tmp);
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bigint_reduce(&tmp2, r);
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if(exp->wordv[i]&j){
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// cli_putc('m');
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bigint_mul_u(&tmp, &tmp2, &x);
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bigint_reduce(&tmp, r);
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}else{
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@ -669,10 +653,9 @@ void bigint_expmod_u(bigint_t* dest, const bigint_t* a, const bigint_t* exp, con
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}
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}
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}
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// cli_putstr_P(PSTR("\r\n"));
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bigint_copy(dest, &tmp);
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}
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#define DEBUG 0
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/******************************************************************************/
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/* gcd <-- gcd(x,y) a*x+b*y=gcd */
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void bigint_gcdext(bigint_t* gcd, bigint_t* a, bigint_t* b, const bigint_t* x, const bigint_t* y){
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@ -704,31 +687,13 @@ void bigint_gcdext(bigint_t* gcd, bigint_t* a, bigint_t* b, const bigint_t* x, c
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for(i=0; (x_.wordv[0]&(1<<i))==0 && (y_.wordv[0]&(1<<i))==0; ++i){
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}
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#if DEBUG
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cli_putstr_P(PSTR("\r\nDBG: initshift = "));
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cli_hexdump_rev(&i, 2);
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#endif
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bigint_adjust(&x_);
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bigint_adjust(&y_);
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if(i){
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bigint_shiftleft(&g, i);
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#if DEBUG
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cli_putstr_P(PSTR("\r\nDBG: initshift (2) = "));
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cli_hexdump_rev(&i, 2);
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cli_putstr_P(PSTR("\r\n x' = "));
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bigint_print_hex(&x_);
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cli_putstr_P(PSTR("\r\n y' = "));
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bigint_print_hex(&y_);
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#endif
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bigint_shiftright(&x_, i);
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bigint_shiftright(&y_, i);
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#if DEBUG
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cli_putstr_P(PSTR("\r\n x' = "));
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bigint_print_hex(&x_);
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cli_putstr_P(PSTR("\r\n y' = "));
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bigint_print_hex(&y_);
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#endif
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bigint_shiftright(&x_, i);
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bigint_shiftright(&y_, i);
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}
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u.wordv = u_b;
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v.wordv = v_b;
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@ -748,18 +713,6 @@ void bigint_gcdext(bigint_t* gcd, bigint_t* a, bigint_t* b, const bigint_t* x, c
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bigint_set_zero(&b_);
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bigint_set_zero(&c_);
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do{
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#if DEBUG
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cli_putstr_P(PSTR("\r\n while u%2==0; u = "));
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bigint_print_hex(&u);
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cli_putstr_P(PSTR("\r\nDBG: (10) a = "));
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bigint_print_hex(&a_);
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cli_putstr_P(PSTR("\r\nDBG: (10) b = "));
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bigint_print_hex(&b_);
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cli_putstr_P(PSTR("\r\nDBG: (10) c = "));
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bigint_print_hex(&c_);
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cli_putstr_P(PSTR("\r\nDBG: (10) d = "));
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bigint_print_hex(&d_);
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#endif
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while((u.wordv[0]&1)==0){
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bigint_shiftright(&u, 1);
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if((a_.wordv[0]&1) || (b_.wordv[0]&1)){
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@ -769,18 +722,6 @@ void bigint_gcdext(bigint_t* gcd, bigint_t* a, bigint_t* b, const bigint_t* x, c
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bigint_shiftright(&a_, 1);
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bigint_shiftright(&b_, 1);
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}
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#if DEBUG
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cli_putstr_P(PSTR("\r\n while v%2==0; v = "));
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bigint_print_hex(&v);
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cli_putstr_P(PSTR("\r\nDBG: (20) a = "));
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bigint_print_hex(&a_);
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cli_putstr_P(PSTR("\r\nDBG: (20) b = "));
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bigint_print_hex(&b_);
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cli_putstr_P(PSTR("\r\nDBG: (20) c = "));
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bigint_print_hex(&c_);
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cli_putstr_P(PSTR("\r\nDBG: (20) d = "));
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bigint_print_hex(&d_);
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#endif
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while((v.wordv[0]&1)==0){
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bigint_shiftright(&v, 1);
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if((c_.wordv[0]&1) || (d_.wordv[0]&1)){
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@ -791,17 +732,6 @@ void bigint_gcdext(bigint_t* gcd, bigint_t* a, bigint_t* b, const bigint_t* x, c
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bigint_shiftright(&d_, 1);
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}
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#if DEBUG
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cli_putstr_P(PSTR("\r\n if u>=v ..."));
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cli_putstr_P(PSTR("\r\nDBG: (30) a = "));
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bigint_print_hex(&a_);
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cli_putstr_P(PSTR("\r\nDBG: (30) b = "));
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bigint_print_hex(&b_);
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cli_putstr_P(PSTR("\r\nDBG: (30) c = "));
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bigint_print_hex(&c_);
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cli_putstr_P(PSTR("\r\nDBG: (30) d = "));
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bigint_print_hex(&d_);
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#endif
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if(bigint_cmp_u(&u, &v)>=0){
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bigint_sub_u(&u, &u, &v);
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bigint_sub_s(&a_, &a_, &c_);
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@ -811,26 +741,6 @@ void bigint_gcdext(bigint_t* gcd, bigint_t* a, bigint_t* b, const bigint_t* x, c
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bigint_sub_s(&c_, &c_, &a_);
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bigint_sub_s(&d_, &d_, &b_);
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}
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#if DEBUG
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if(GET_SIGN(&u)){
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cli_putstr_P(PSTR("\r\nDBG: u negative! u = "));
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bigint_print_hex(&u);
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}
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if(GET_SIGN(&v)){
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cli_putstr_P(PSTR("\r\nDBG: v negative! v = "));
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bigint_print_hex(&v);
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}
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#endif
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/*
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cli_putstr_P(PSTR("\r\nDBG: (2) a = "));
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bigint_print_hex(&a_);
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cli_putstr_P(PSTR("\r\nDBG: (2) b = "));
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bigint_print_hex(&b_);
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cli_putstr_P(PSTR("\r\nDBG: (2) c = "));
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bigint_print_hex(&c_);
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cli_putstr_P(PSTR("\r\nDBG: (2) d = "));
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bigint_print_hex(&d_);
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*/
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}while(u.length_B);
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if(gcd){
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bigint_mul_s(gcd, &v, &g);
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