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avr-crypto-lib
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minimal edit

This commit is contained in:
bg 2014-04-08 10:32:37 +02:00
parent 8d1970350a
commit 55113fbb49
3 changed files with 101 additions and 5 deletions
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7
ecdsa/ecdsa_sign.c
View File

@ -77,8 +77,14 @@ uint8_t ecdsa_sign_bigint(ecdsa_signature_t *s, const bigint_t *m,
}
ecc_chudnovsky_to_affine_point(&q.affine, &q.chudnovsky, ctx->curve);
bigint_inverse(&s->s, k, ctx->curve->p);
printf_P(PSTR("x: "));
bigint_print_hex(&q.affine.x);
putchar('\n');
bigint_mul_u(&t, &q.affine.x, ctx->priv);
ctx->curve->reduce_p(&t);
printf_P(PSTR("msg: "));
bigint_print_hex(m);
putchar('\n');
@ -91,6 +97,7 @@ uint8_t ecdsa_sign_bigint(ecdsa_signature_t *s, const bigint_t *m,
printf_P(PSTR("t (1): "));
bigint_print_hex(&t);
putchar('\n');
bigint_add_u(&t, &t, m);
ctx->curve->reduce_p(&t);
printf_P(PSTR("t (2): "));

6
ecdsa/nist_p192.c
View File

@ -129,12 +129,12 @@ ecc_curve_sp_t nist_curve_p192 = {
/*
* A = ( A5 || A4 || A3 || A2 || A1 || A0 ) ; An if 64-bit
* A = ( A5 || A4 || A3 || A2 || A1 || A0 ) ; An is 64-bit
* A mod p = B = T + S1 + S2 + S3 mod p
*
* T = ( A2 || A1 || A0 )
* S1 = ( A3 || A3 )
* S2 = ( A4 || A4 || 0 )
* S1 = ( 0 || A3 || A3 )
* S2 = ( A4 || A4 || 0 )
* S3 = ( A5 || A5 || A5 )
*
*/

93
test_src/main-ecdsa-test.c
View File

@ -709,12 +709,20 @@ const uint8_t ecdsa_test_1_msg[] PROGMEM = {
0x11, 0x43, 0x59, 0xce, 0xe4, 0xa0, 0x71, 0xcf
};
/*
* d = e14f37b3d1374ff8b03f41b9b3fdd2f0ebccf275d660d7f3
*/
const uint8_t ecdsa_test_1_d[] PROGMEM = {
0xf3, 0xd7, 0x60, 0xd6, 0x75, 0xf2, 0xcc, 0xeb,
0xf0, 0xd2, 0xfd, 0xb3, 0xb9, 0x41, 0x3f, 0xb0,
0xf8, 0x4f, 0x37, 0xd1, 0xb3, 0x37, 0x4f, 0xe1
};
/*
* k = cb0abc7043a10783684556fb12c4154d57bc31a289685f25
*/
const uint8_t ecdsa_test_1_k[] PROGMEM = {
0x25, 0x5f, 0x68, 0x89, 0xa2, 0x31, 0xbc, 0x57,
0x4d, 0x15, 0xc4, 0x12, 0xfb, 0x56, 0x45, 0x68,
@ -769,6 +777,7 @@ const uint8_t ecdsa_test_2_k[] PROGMEM = {
0x47, 0xfa, 0x11, 0xbc, 0xb1, 0xc2, 0xe8, 0x41
};
#if 0
void test_sign1(void){
bigint_word_t d_w[sizeof(ecdsa_test_1_d)];
uint8_t rnd[sizeof(ecdsa_test_1_k)];
@ -783,8 +792,86 @@ void test_sign1(void){
putchar('\n');
d.wordv = d_w;
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);
memcpy_P(d_w, ecdsa_test_1_d, sizeof(ecdsa_test_1_d));
d.length_W = (sizeof(ecdsa_test_1_d) + sizeof(bigint_word_t) - 1) / 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_affine_point_alloc(&q.affine, nist_curve_p192_p.length_W * sizeof(bigint_word_t));
// ecc_chudnovsky_point_alloc(&q.chudnovsky, nist_curve_p192_p.length_W * sizeof(bigint_word_t));
// ctx.basepoint = &nist_curve_p192_basepoint.chudnovsky;
ctx.basepoint = &nist_curve_p192_basepoint.affine;
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);
r = ecc_????
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));
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);
}
#else
void test_sign1(void){
bigint_word_t d_w[sizeof(ecdsa_test_1_d)];
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(rnd, ecdsa_test_1_k, sizeof(ecdsa_test_1_k));
memcpy_P(d_w, ecdsa_test_1_d, sizeof(ecdsa_test_1_d));
d.length_W = (sizeof(ecdsa_test_1_d) + sizeof(bigint_word_t) - 1) / sizeof(bigint_word_t);
d.info = 0;
bigint_adjust(&d);
@ -842,6 +929,8 @@ void test_sign1(void){
ecc_chudnovsky_point_free(&q.chudnovsky);
}
#endif
void test_sign2(void){
bigint_word_t d_w[sizeof(ecdsa_test_2_d)];
uint8_t rnd[sizeof(ecdsa_test_2_k)];