[ecdsa] some progress but still unfinished

This commit is contained in:
bg 2013-02-17 10:36:05 +01:00
parent 872dff3138
commit 33d65e8032
6 changed files with 364 additions and 33 deletions

View File

@ -35,7 +35,7 @@ typedef struct {
bigint_t y;
} ecc_affine_point_t;
typedef struct __attribute__((packed)){
typedef union __attribute__((packed)){
ecc_affine_point_t affine;
ecc_chudnovsky_point_t chudnovsky;
} ecc_combi_point_t;

View File

@ -40,24 +40,29 @@
uint8_t ecc_chudnovsky_point_alloc(ecc_chudnovsky_point_t* p, size_t length_B){
if(!(p->x.wordv = malloc(length_B))){
printf_P(PSTR("DBG: XXX <%S %s %d>\n"), PSTR(__FILE__), __func__, __LINE__);
return 1;
}
if(!(p->y.wordv = malloc(length_B))){
printf_P(PSTR("DBG: XXX <%S %s %d>\n"), PSTR(__FILE__), __func__, __LINE__);
free(p->x.wordv);
return 1;
}
if(!(p->z1.wordv = malloc(length_B))){
printf_P(PSTR("DBG: XXX <%S %s %d>\n"), PSTR(__FILE__), __func__, __LINE__);
free(p->x.wordv);
free(p->y.wordv);
return 1;
}
if(!(p->z2.wordv = malloc(length_B))){
printf_P(PSTR("DBG: XXX <%S %s %d>\n"), PSTR(__FILE__), __func__, __LINE__);
free(p->x.wordv);
free(p->y.wordv);
free(p->z1.wordv);
return 1;
}
if(!(p->z3.wordv = malloc(length_B))){
printf_P(PSTR("DBG: XXX <%S %s %d>\n"), PSTR(__FILE__), __func__, __LINE__);
free(p->x.wordv);
free(p->y.wordv);
free(p->z1.wordv);
@ -486,8 +491,8 @@ uint8_t ecc_chudnovsky_naf_multiplication(ecc_chudnovsky_point_t *dest,
}
bigint_to_naf(t, &i, k);
printf(" naf: ");
print_naf(t, i);
// printf(" naf: ");
// print_naf(t, i);
--i;
dest->y.length_W = 0;

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@ -20,17 +20,24 @@
#include <stdlib.h>
#include <inttypes.h>
#include <string.h>
#include "bigint.h"
#include "ecc.h"
#include "random_dummy.h"
#include "ecdsa.h"
#include "hfal-basic.h"
#include <stdio.h>
#include "bigint_io.h"
uint8_t ecdsa_signature_alloc(ecdsa_signature_t* s, size_t length_B){
if(!(s->r.wordv = malloc(length_B))){
printf_P(PSTR("DBG: XXX <%S %s %d>\n"), PSTR(__FILE__), __func__, __LINE__);
return 1;
}
if(!(s->s.wordv = malloc(length_B))){
printf_P(PSTR("DBG: XXX <%S %s %d>\n"), PSTR(__FILE__), __func__, __LINE__);
free(s->r.wordv);
return 1;
}
@ -52,26 +59,47 @@ uint8_t ecdsa_sign_bigint(ecdsa_signature_t* s, const bigint_t* m,
if(!(t.wordv = malloc(ctx->curve->p->length_W * 2 * sizeof(bigint_word_t)))){
printf_P(PSTR("DBG: XXX <%S %s %d>\n"), PSTR(__FILE__), __func__, __LINE__);
return 1;
}
if(!ecc_chudnovsky_point_alloc(&q.chudnovsky, ctx->curve->p->length_W * sizeof(bigint_word_t))){
t.info = 0;
if(ecc_chudnovsky_point_alloc(&q.chudnovsky, ctx->curve->p->length_W * sizeof(bigint_word_t))){
free(t.wordv);
printf_P(PSTR("item size: %u bytes\n"), ctx->curve->p->length_W * sizeof(bigint_word_t));
printf_P(PSTR("DBG: XXX <%S %s %d>\n"), PSTR(__FILE__), __func__, __LINE__);
return 1;
}
ecc_chudnovsky_multiplication(&q.chudnovsky, k, ctx->basepoint, ctx->curve);
if(q.chudnovsky.x.length_W == 0){
printf_P(PSTR("DBG: XXX <%S %s %d>\n"), PSTR(__FILE__), __func__, __LINE__);
return 2;
}
ecc_chudnovsky_to_affine_point(&q.affine, &q.chudnovsky, ctx->curve);
bigint_inverse(&s->r, k, ctx->curve->p);
bigint_inverse(&s->s, k, ctx->curve->p);
bigint_mul_u(&t, &q.affine.x, ctx->priv);
ctx->curve->reduce_p(&t);
printf_P(PSTR("msg: "));
bigint_print_hex(m);
putchar('\n');
printf_P(PSTR("k: "));
bigint_print_hex(k);
putchar('\n');
printf_P(PSTR("k-inv: "));
bigint_print_hex(&s->s);
putchar('\n');
printf_P(PSTR("t (1): "));
bigint_print_hex(&t);
putchar('\n');
bigint_add_u(&t, &t, m);
ctx->curve->reduce_p(&t);
bigint_mul_u(&t, &t, &s->r);
printf_P(PSTR("t (2): "));
bigint_print_hex(&t);
putchar('\n');
bigint_mul_u(&t, &t, &s->s);
ctx->curve->reduce_p(&t);
if(t.length_W == 0){
printf_P(PSTR("DBG: XXX <%S %s %d>\n"), PSTR(__FILE__), __func__, __LINE__);
return 2;
}
bigint_copy(&s->r, &q.affine.x);
@ -82,33 +110,52 @@ uint8_t ecdsa_sign_bigint(ecdsa_signature_t* s, const bigint_t* m,
return 0;
}
uint8_t ecdsa_sign_message(ecdsa_signature_t* s, const void* m, uint16_t m_len_b,
const hfdesc_t* hash_desc, const ecdsa_ctx_t* ctx,
uint8_t ecdsa_sign_hash(ecdsa_signature_t* s, const void* hash,
size_t hash_len_B, const ecdsa_ctx_t* ctx,
const void *rand_in){
bigint_t m_int;
bigint_t r_int;
size_t idx = 0;
uint8_t r;
r_int.length_W = ctx->curve->p->length_W;
if(rand_in == NULL){
if(!(r_int.wordv = malloc(ctx->curve->p->length_W * sizeof(bigint_word_t)))){
return 1;
}
}else{
r_int.wordv = (bigint_word_t*)rand_in;
r_int.info = 0;
bigint_adjust(&r_int);
}
if(!(m_int.wordv = malloc(hfal_hash_getHashsize(hash_desc) / 8))){
if(rand_in == NULL){
free(r_int.wordv);
}
m_int.length_W = ctx->curve->p->length_W;
m_int.wordv = malloc(m_int.length_W * sizeof(bigint_word_t));
if(m_int.wordv == NULL){
free(r_int.wordv);
return 1;
}
hfal_hash_mem(hash_desc, m_int.wordv, m, m_len_b);
m_int.wordv[m_int.length_W - 1] = 0;
if(hash_len_B > m_int.length_W * sizeof(bigint_word_t)){
while(idx < m_int.length_W * sizeof(bigint_word_t)){
((uint8_t*)m_int.wordv)[idx] = ((uint8_t*)hash)[m_int.length_W * sizeof(bigint_word_t) - idx - 1];
++idx;
}
}else{
memset(m_int.wordv, 0, m_int.length_W * sizeof(bigint_word_t));
// idx += m_int.length_W * sizeof(bigint_word_t) - hash_len_B;
while(hash_len_B){
((uint8_t*)m_int.wordv)[idx++] = ((uint8_t*)hash)[--hash_len_B];
}
}
do{
if(rand_in == NULL){
size_t i;
do{
i = ctx->curve->p->length_W * sizeof(bigint_word_t) - 1;
r_int.length_W = ctx->curve->p->length_W;
do{
((uint8_t*)r_int.wordv)[i] = prng_get_byte();
}while(i--);
@ -117,5 +164,26 @@ uint8_t ecdsa_sign_message(ecdsa_signature_t* s, const void* m, uint16_t m_len_b
}
}while((r = ecdsa_sign_bigint(s, &m_int, ctx, &r_int)) == 2 && (rand_in == NULL));
free(m_int.wordv);
return r;
}
uint8_t ecdsa_sign_message(ecdsa_signature_t* s, const void* m, uint16_t m_len_b,
const hfdesc_t* hash_desc, const ecdsa_ctx_t* ctx,
const void *rand_in){
uint8_t *hash;
uint16_t hash_len = hfal_hash_getHashsize(hash_desc) / 8;
uint8_t r;
hash = malloc(hash_len);
if(hash == NULL){
return 1;
}
hfal_hash_mem(hash_desc, hash, m, m_len_b);
ecdsa_sign_hash(s, hash, hash_len, ctx, rand_in);
return r;
}

View File

@ -32,6 +32,10 @@ void ecdsa_signature_free(ecdsa_signature_t* s);
uint8_t ecdsa_sign_bigint(ecdsa_signature_t* s, const bigint_t* m,
const ecdsa_ctx_t* ctx, const bigint_t* k);
uint8_t ecdsa_sign_hash(ecdsa_signature_t* s, const void* hash,
size_t hash_len_B, const ecdsa_ctx_t* ctx,
const void *rand_in);
uint8_t ecdsa_sign_message(ecdsa_signature_t* s, const void* m, uint16_t m_len_b,
const hfdesc_t* hash_desc, const ecdsa_ctx_t* ctx,
const void *rand_in);

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@ -5,10 +5,13 @@ ALGO_NAME := ECDSA
SIGNATURE += $(ALGO_NAME)
$(ALGO_NAME)_DIR := ecdsa/
$(ALGO_NAME)_INCDIR := memxor/ bigint/ sha1/ noekeon/ base64/ hfal/
$(ALGO_NAME)_OBJ := bigint.o bigint_io.o sha1-asm.o nist_p192.o ecc_chudnovsky.o ecdsa_sign.o base64_enc.o
$(ALGO_NAME)_TESTBIN := main-ecdsa-test.o $(CLI_STD) hfal_sha1.o $(HFAL_STD) \
noekeon_asm.o noekeon_prng.o memxor.o
$(ALGO_NAME)_INCDIR := memxor/ bigint/ sha1/ sha2/ noekeon/ base64/ hfal/
$(ALGO_NAME)_OBJ := bigint.o bigint_io.o nist_p192.o ecc_chudnovsky.o ecdsa_sign.o base64_enc.o \
sha2_small_common.o sha2_large_common.o sha224.o sha256.o sha384.o sha512.o \
sha1-asm.o
$(ALGO_NAME)_TESTBIN := main-ecdsa-test.o $(CLI_STD) $(HFAL_STD) \
noekeon_asm.o noekeon_prng.o memxor.o \
hfal_sha1.o hfal_sha224.o hfal_sha256.o hfal_sha384.o hfal_sha512.o
$(ALGO_NAME)_PERFORMANCE_TEST := performance

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@ -21,6 +21,8 @@
*
*/
#include <ctype.h>
#include "main-test-common.h"
#include "noekeon.h"
@ -36,6 +38,7 @@
#include "hfal_sha256.h"
#include "hfal_sha384.h"
#include "hfal_sha512.h"
#include "hfal-basic.h"
#include "performance_test.h"
#include "hfal_sha1.h"
@ -52,6 +55,91 @@ uint8_t prng_get_byte(void){
return random8();
}
const hfdesc_t *hash_select(void){
const hfdesc_t *hashes[] = { &sha1_desc, &sha224_desc, &sha256_desc, &sha384_desc, &sha512_desc };
uint8_t index;
int selection;
printf_P(PSTR("Please select one of the following hash functions:\n"));
for(index = 0; index < sizeof(hashes) / sizeof(hashes[0]); ++index){
printf_P(PSTR(" %c: %S\n"), index + 'a', pgm_read_word(&(hashes[index]->name)));
}
do{
printf_P(PSTR("[a]: "));
selection = getchar();
putchar(selection);
if(selection == '\n' || selection == '\r'){
selection = 0;
}else{
putchar('\n');
selection -= 'a';
}
}while(selection > sizeof(hashes) / sizeof(hashes[0]));
return hashes[selection];
}
uint8_t convert_hexchar_to_value(char a){
if(a >= 0 && a <= 9){
return a - '0';
}
if(a >= 'a' && a <= 'f'){
return a - 'a';
}
if(a >= 'A' && a <= 'F'){
return a - 'A';
}
return 0;
}
uint8_t convert_hex_to_byte(char a, char b){
return (convert_hexchar_to_value(a) << 4) | convert_hexchar_to_value(b);
}
void *hash_message(hfdesc_t* hash_function){
uint8_t *block, *hash_value;
uint16_t index = 0;
hfgen_ctx_t ctx;
if(hash_function == NULL){
return NULL;
}
block = malloc(hfal_hash_getBlocksize(hash_function) / 8);
if(block == NULL){
return NULL;
}
hash_value = malloc(hfal_hash_getHashsize(hash_function) / 8);
if(hash_value == NULL){
free(block);
return NULL;
}
hfal_hash_init(hash_function, &ctx);
for(;;){
int a,b;
a = getchar();
if(!isxdigit(a)){
hfal_hash_lastBlock(&ctx, block, index * 8);
break;
}
putchar(a);
b = getchar();
if(!isxdigit(b)){
printf_P(PSTR("*** invalid ***\n"));
hfal_hash_free(&ctx);
free(hash_value);
free(block);
return NULL;
}
putchar(b);
block[index++] = convert_hex_to_byte(a, b);
if(index == hfal_hash_getBlocksize(hash_function) / 8){
hfal_hash_nextBlock(&ctx, block);
}
}
hfal_hash_ctx2hash(hash_value, &ctx);
hfal_hash_free(&ctx);
free(block);
return hash_value;
}
void testrun_performance_invert_bigint(void){
printf_P(PSTR("\n=== performance measurement (invert) ===\n"));
unsigned i,j;
@ -450,6 +538,7 @@ void testrun_genkey(void){
ecc_affine_point_t qa;
uint32_t time;
bigint_t k;
uint8_t r;
printf_P(PSTR("\n== testing key generation ==\n"));
@ -471,7 +560,7 @@ void testrun_genkey(void){
bigint_print_hex(&k);
startTimer(1);
START_TIMER;
ecc_chudnovsky_naf_multiplication(&q, &k, &nist_curve_p192_basepoint.chudnovsky, &nist_curve_p192);
r = ecc_chudnovsky_naf_multiplication(&q, &k, &nist_curve_p192_basepoint.chudnovsky, &nist_curve_p192);
STOP_TIMER;
time = stopTimer();
ecc_chudnovsky_to_affine_point(&qa, &q, &nist_curve_p192);
@ -480,13 +569,13 @@ void testrun_genkey(void){
bigint_print_hex(&qa.x);
printf_P(PSTR("\n Qy: "));
bigint_print_hex(&qa.y);
printf_P(PSTR("\n time: %"PRIu32" cycles\n"), time);
printf_P(PSTR("\n time: %"PRIu32" cycles (r code: %"PRIu8")\n"), time, r);
printf_P(PSTR("(d&a) k: "));
bigint_print_hex(&k);
startTimer(1);
START_TIMER;
ecc_chudnovsky_double_and_add(&q, &k, &nist_curve_p192_basepoint.chudnovsky, &nist_curve_p192);
r = ecc_chudnovsky_double_and_add(&q, &k, &nist_curve_p192_basepoint.chudnovsky, &nist_curve_p192);
STOP_TIMER;
time = stopTimer();
ecc_chudnovsky_to_affine_point(&qa, &q, &nist_curve_p192);
@ -495,7 +584,7 @@ void testrun_genkey(void){
bigint_print_hex(&qa.x);
printf_P(PSTR("\n Qy: "));
bigint_print_hex(&qa.y);
printf_P(PSTR("\n time: %"PRIu32" cycles\n"), time);
printf_P(PSTR("\n time: %"PRIu32" cycles (r code: %"PRIu8")\n"), time, r);
free(k.wordv);
ecc_chudnovsky_point_free(&q);
ecc_affine_point_free(&qa);
@ -505,6 +594,7 @@ void testrun_genkey(void){
#endif
const uint8_t ecdsa_test_1_msg[] PROGMEM = {
/*
0xcf, 0x71, 0xa0, 0xe4, 0xce, 0x59, 0x43, 0x11,
0x77, 0x88, 0x50, 0x87, 0x53, 0x78, 0xd0, 0xee,
0xa3, 0xc0, 0x32, 0xa4, 0xbc, 0xc0, 0xdc, 0x1c,
@ -521,6 +611,23 @@ const uint8_t ecdsa_test_1_msg[] PROGMEM = {
0x24, 0xf0, 0x4a, 0x5d, 0x86, 0x0c, 0xb1, 0x4f,
0x6b, 0x6e, 0x8a, 0x69, 0x73, 0xb4, 0x9f, 0xd2,
0xa7, 0xbc, 0xeb, 0x48, 0xd7, 0x48, 0xf7, 0xeb
*/
0xeb, 0xf7, 0x48, 0xd7, 0x48, 0xeb, 0xbc, 0xa7,
0xd2, 0x9f, 0xb4, 0x73, 0x69, 0x8a, 0x6e, 0x6b,
0x4f, 0xb1, 0x0c, 0x86, 0x5d, 0x4a, 0xf0, 0x24,
0xcc, 0x39, 0xae, 0x3d, 0xf3, 0x46, 0x4b, 0xa4,
0xf1, 0xd6, 0xd4, 0x0f, 0x32, 0xbf, 0x96, 0x18,
0xa9, 0x1b, 0xb5, 0x98, 0x6f, 0xa1, 0xa2, 0xaf,
0x04, 0x8a, 0x0e, 0x14, 0xdc, 0x51, 0xe5, 0x26,
0x7e, 0xb0, 0x5e, 0x12, 0x7d, 0x68, 0x9d, 0x0a,
0xc6, 0xf1, 0xa7, 0xf1, 0x56, 0xce, 0x06, 0x63,
0x16, 0xb9, 0x71, 0xcc, 0x7a, 0x11, 0xd0, 0xfd,
0x7a, 0x20, 0x93, 0xe2, 0x7c, 0xf2, 0xd0, 0x87,
0x27, 0xa4, 0xe6, 0x74, 0x8c, 0xc3, 0x2f, 0xd5,
0x9c, 0x78, 0x10, 0xc5, 0xb9, 0x01, 0x9d, 0xf2,
0x1c, 0xdc, 0xc0, 0xbc, 0xa4, 0x32, 0xc0, 0xa3,
0xee, 0xd0, 0x78, 0x53, 0x87, 0x50, 0x88, 0x77,
0x11, 0x43, 0x59, 0xce, 0xe4, 0xa0, 0x71, 0xcf
};
const uint8_t ecdsa_test_1_d[] PROGMEM = {
@ -535,57 +642,199 @@ const uint8_t ecdsa_test_1_k[] PROGMEM = {
0x83, 0x07, 0xa1, 0x43, 0x70, 0xbc, 0x0a, 0xcb
};
void hash_mem_P(const hfdesc_t* hfdesc, void* dest, const void* msg, uint16_t msg_len_b){
uint16_t blocksize = hfal_hash_getBlocksize(hfdesc);
uint8_t block[blocksize / 8];
hfgen_ctx_t ctx;
hfal_hash_init(hfdesc, &ctx);
while(msg_len_b > blocksize){
memcpy_P(block, msg, blocksize / 8);
msg = (uint8_t*)msg + blocksize / 8;
msg_len_b -= blocksize;
hfal_hash_nextBlock(&ctx, block);
}
memcpy_P(block, msg, (msg_len_b + 7) / 8);
hfal_hash_lastBlock(&ctx, block, msg_len_b);
hfal_hash_ctx2hash(dest, &ctx);
hfal_hash_free(&ctx);
}
const uint8_t ecdsa_test_2_msg[] PROGMEM = {
0x66, 0xa2, 0x51, 0x3d, 0x7b, 0x60, 0x45, 0xe5,
0x66, 0x79, 0xb0, 0x32, 0xca, 0xd4, 0x5f, 0xb1,
0x82, 0x28, 0x9c, 0xa7, 0x6a, 0x88, 0xc0, 0x6d,
0x78, 0xc8, 0x5f, 0x3d, 0xd3, 0x80, 0x45, 0x90,
0x20, 0x5b, 0x73, 0xa7, 0x84, 0x24, 0x9a, 0x0a,
0x0c, 0x8b, 0xf2, 0xf2, 0x21, 0x45, 0xd1, 0x05,
0x21, 0x9b, 0x48, 0x0d, 0x74, 0x60, 0x7c, 0x02,
0xb8, 0xa6, 0xb6, 0xb4, 0x59, 0x25, 0x9e, 0x4f,
0xdf, 0xe2, 0xbd, 0xb4, 0xab, 0x22, 0x38, 0x01,
0x75, 0x35, 0x29, 0x1d, 0x7a, 0xc1, 0xab, 0xda,
0x66, 0xc4, 0xf6, 0xdc, 0xea, 0x9e, 0x5d, 0x0b,
0xf0, 0x5a, 0x93, 0x06, 0xf3, 0x33, 0xb0, 0x0e,
0x56, 0x34, 0x2f, 0x75, 0x53, 0x40, 0x21, 0x1a,
0xc2, 0x94, 0xac, 0x21, 0xa7, 0xc2, 0xb2, 0x67,
0x12, 0xb8, 0x79, 0x95, 0x1b, 0x2e, 0x23, 0xf6,
0x48, 0x7e, 0x4d, 0x39, 0x89, 0x9f, 0xe3, 0x74
};
const uint8_t ecdsa_test_2_d[] PROGMEM = {
0xeb, 0x8e, 0x9f, 0x04, 0x7d, 0xb5, 0x9a, 0x80,
0x34, 0x6f, 0xcd, 0xf1, 0xcc, 0x33, 0xbb, 0x78,
0xbe, 0xc6, 0xb8, 0x76, 0xaf, 0x9f, 0x4b, 0x69
};
const uint8_t ecdsa_test_2_k[] PROGMEM = {
0x8e, 0xd5, 0x00, 0x34, 0x08, 0x09, 0x60, 0x36,
0x2e, 0xfe, 0x16, 0xd0, 0x53, 0x37, 0xa2, 0xf5,
0x47, 0xfa, 0x11, 0xbc, 0xb1, 0xc2, 0xe8, 0x41
};
void test_sign1(void){
bigint_word_t d_w[sizeof(ecdsa_test_1_d)];
uint8_t msg[sizeof(ecdsa_test_1_msg)];
uint8_t rnd[sizeof(ecdsa_test_1_k)];
uint8_t *hash;
bigint_t d;
const hfdesc_t *hash_desc;
ecc_combi_point_t q;
ecdsa_signature_t sign;
ecdsa_ctx_t ctx;
uint8_t r;
putchar('\n');
d.wordv = d_w;
memcpy_P(msg, ecdsa_test_1_msg, sizeof(ecdsa_test_1_msg));
memcpy_P(rnd, ecdsa_test_1_k, sizeof(ecdsa_test_1_k));
memcpy_P(d_w, ecdsa_test_1_d, sizeof(ecdsa_test_1_d) * sizeof(bigint_word_t));
d.length_W = sizeof(ecdsa_test_1_d) / sizeof(bigint_word_t);
d.info = 0;
bigint_adjust(&d);
hash_desc = &sha1_desc; //hash_select();
hash = malloc(hfal_hash_getHashsize(hash_desc) / 8);
if(hash == NULL){
printf_P(PSTR("DBG: XXX <%S %s %d>\n"), PSTR(__FILE__), __func__, __LINE__);
}
hash_mem_P(hash_desc, hash, ecdsa_test_1_msg, sizeof(ecdsa_test_1_msg) * 8);
printf_P(PSTR("msg hash: "));
cli_hexdump(hash, hfal_hash_getHashsize(hash_desc) / 8);
putchar('\n');
ecc_chudnovsky_point_alloc(&q.chudnovsky, nist_curve_p192_p.length_W * sizeof(bigint_word_t));
ctx.basepoint = &nist_curve_p192_basepoint.chudnovsky;
ctx.priv = &d;
ctx.curve = &nist_curve_p192;
printf("\n d:");
printf("\n d: ");
bigint_print_hex(&d);
printf_P(PSTR("\n Gx: "));
bigint_print_hex(&nist_curve_p192_basepoint.affine.x);
printf_P(PSTR("\n Gy: "));
bigint_print_hex(&nist_curve_p192_basepoint.affine.y);
ecc_chudnovsky_multiplication(&q.chudnovsky, &d, &nist_curve_p192_basepoint.chudnovsky, &nist_curve_p192);
ecc_chudnovsky_to_affine_point(&q.affine, &q.chudnovsky, &nist_curve_p192);
r = ecc_chudnovsky_multiplication(&q.chudnovsky, &d, &nist_curve_p192_basepoint.chudnovsky, &nist_curve_p192);
if(r){
printf_P(PSTR("ERROR: ecc_chudnovsky_multiplication() returned: %"PRIu8"\n"), r);
}
r = ecc_chudnovsky_to_affine_point(&q.affine, &q.chudnovsky, &nist_curve_p192);
if(r){
printf_P(PSTR("ERROR: ecc_chudnovsky_to_affine_point() returned: %"PRIu8"\n"), r);
}
printf_P(PSTR("\n Qx: "));
bigint_print_hex(&q.affine.x);
printf_P(PSTR("\n Qy: "));
bigint_print_hex(&q.affine.y);
putchar('\n');
ctx.pub = &q.affine;
ecdsa_signature_alloc(&sign, sizeof(ecdsa_test_1_d) * sizeof(bigint_word_t));
ecdsa_sign_message(&sign, msg, sizeof(msg) * 8, &sha1_desc, &ctx, rnd);
printf_P(PSTR("\n r: "));
r = ecdsa_sign_hash(&sign, hash, hfal_hash_getHashsize(hash_desc) / 8, &ctx, rnd);
if(r){
printf_P(PSTR("ERROR: ecdsa_sign_message() returned: %"PRIu8"\n"), r);
}
printf_P(PSTR(" r: "));
bigint_print_hex(&sign.r);
printf_P(PSTR("\n r: "));
printf_P(PSTR("\n s: "));
bigint_print_hex(&sign.s);
free(hash);
ecdsa_signature_free(&sign);
ecc_chudnovsky_point_free(&q.chudnovsky);
}
void test_sign2(void){
bigint_word_t d_w[sizeof(ecdsa_test_2_d)];
uint8_t rnd[sizeof(ecdsa_test_2_k)];
uint8_t *hash;
bigint_t d;
const hfdesc_t *hash_desc;
ecc_combi_point_t q;
ecdsa_signature_t sign;
ecdsa_ctx_t ctx;
uint8_t r;
putchar('\n');
d.wordv = d_w;
memcpy_P(rnd, ecdsa_test_2_k, sizeof(ecdsa_test_2_k));
memcpy_P(d_w, ecdsa_test_2_d, sizeof(ecdsa_test_2_d) * sizeof(bigint_word_t));
d.length_W = sizeof(ecdsa_test_2_d) / sizeof(bigint_word_t);
d.info = 0;
bigint_adjust(&d);
hash_desc = &sha224_desc; //hash_select();
hash = malloc(hfal_hash_getHashsize(hash_desc) / 8);
if(hash == NULL){
printf_P(PSTR("DBG: XXX <%S %s %d>\n"), PSTR(__FILE__), __func__, __LINE__);
}
hash_mem_P(hash_desc, hash, ecdsa_test_2_msg, sizeof(ecdsa_test_1_msg) * 8);
printf_P(PSTR("msg hash: "));
cli_hexdump(hash, hfal_hash_getHashsize(hash_desc) / 8);
putchar('\n');
ecc_chudnovsky_point_alloc(&q.chudnovsky, nist_curve_p192_p.length_W * sizeof(bigint_word_t));
ctx.basepoint = &nist_curve_p192_basepoint.chudnovsky;
ctx.priv = &d;
ctx.curve = &nist_curve_p192;
printf("\n d: ");
bigint_print_hex(&d);
printf_P(PSTR("\n Gx: "));
bigint_print_hex(&nist_curve_p192_basepoint.affine.x);
printf_P(PSTR("\n Gy: "));
bigint_print_hex(&nist_curve_p192_basepoint.affine.y);
r = ecc_chudnovsky_multiplication(&q.chudnovsky, &d, &nist_curve_p192_basepoint.chudnovsky, &nist_curve_p192);
if(r){
printf_P(PSTR("ERROR: ecc_chudnovsky_multiplication() returned: %"PRIu8"\n"), r);
}
r = ecc_chudnovsky_to_affine_point(&q.affine, &q.chudnovsky, &nist_curve_p192);
if(r){
printf_P(PSTR("ERROR: ecc_chudnovsky_to_affine_point() returned: %"PRIu8"\n"), r);
}
printf_P(PSTR("\n Qx: "));
bigint_print_hex(&q.affine.x);
printf_P(PSTR("\n Qy: "));
bigint_print_hex(&q.affine.y);
putchar('\n');
ctx.pub = &q.affine;
ecdsa_signature_alloc(&sign, sizeof(ecdsa_test_2_d) * sizeof(bigint_word_t));
r = ecdsa_sign_hash(&sign, hash, hfal_hash_getHashsize(hash_desc) / 8, &ctx, rnd);
if(r){
printf_P(PSTR("ERROR: ecdsa_sign_message() returned: %"PRIu8"\n"), r);
}
printf_P(PSTR(" r: "));
bigint_print_hex(&sign.r);
printf_P(PSTR("\n s: "));
bigint_print_hex(&sign.s);
free(hash);
ecdsa_signature_free(&sign);
ecc_chudnovsky_point_free(&q.chudnovsky);
}
/*****************************************************************************
* main *
*****************************************************************************/
@ -601,6 +850,7 @@ const char genkey2_str[] PROGMEM = "genkey2";
const char genkey3_str[] PROGMEM = "genkey3";
const char genkey_str[] PROGMEM = "genkey";
const char testsign1_str[] PROGMEM = "testsign1";
const char testsign2_str[] PROGMEM = "testsign2";
const char square_str[] PROGMEM = "square";
const char echo_str[] PROGMEM = "echo";
@ -613,6 +863,7 @@ const const cmdlist_entry_t cmdlist[] PROGMEM = {
{ genkey2_str, NULL, testrun_genkey2 },
{ genkey3_str, NULL, testrun_genkey3 },
{ testsign1_str, NULL, test_sign1 },
{ testsign2_str, NULL, test_sign2 },
{ performance_reduce_str, NULL, testrun_performance_reduce_bigint },
{ performance_invert_str, NULL, testrun_performance_invert_bigint },
{ performance_multiply_str, NULL, testrun_performance_multiply_bigint },