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#include "testutils.h"
static void
test_ecdsa (const struct ecc_curve *ecc,
/* Private key */
const char *sz,
/* Random nonce */
const char *sk,
/* Hash */
const struct tstring *h,
/* Expected signature */
const char *r, const char *s)
{
struct dsa_signature ref;
mpz_t z;
mpz_t k;
mp_limb_t *rp = xalloc_limbs (ecc->size);
mp_limb_t *sp = xalloc_limbs (ecc->size);
mp_limb_t *scratch = xalloc_limbs (ecc_ecdsa_sign_itch (ecc));
dsa_signature_init (&ref);
mpz_init_set_str (z, sz, 16);
mpz_init_set_str (k, sk, 16);
ecc_ecdsa_sign (ecc, mpz_limbs_read_n (z, ecc->size),
mpz_limbs_read_n (k, ecc->size),
h->length, h->data, rp, sp, scratch);
mpz_set_str (ref.r, r, 16);
mpz_set_str (ref.s, s, 16);
if (mpz_limbs_cmp (ref.r, rp, ecc->size) != 0
|| mpz_limbs_cmp (ref.s, sp, ecc->size) != 0)
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{
fprintf (stderr, "_ecdsa_sign failed, bit_size = %u\n", ecc->bit_size);
gmp_fprintf (stderr, "r = %Nx\n", rp, ecc->size);
gmp_fprintf (stderr, "s = %Nx\n", sp, ecc->size);
gmp_fprintf (stderr, "ref.r = %Zx\n", ref.r);
gmp_fprintf (stderr, "ref.s = %Zx\n", ref.s);
abort();
}
free (rp);
free (sp);
free (scratch);
dsa_signature_clear (&ref);
mpz_clear (k);
mpz_clear (z);
}
void
test_main (void)
{
/* Test cases for the smaller groups, verified with a
proof-of-concept implementation done for Yubico AB. */
test_ecdsa (&nettle_secp_192r1,
"DC51D3866A15BACDE33D96F992FCA99D"
"A7E6EF0934E70975", /* z */
"9E56F509196784D963D1C0A401510EE7"
"ADA3DCC5DEE04B15", /* k */
SHEX("BA7816BF8F01CFEA414140DE5DAE2223"
"B00361A396177A9C"), /* h */
"8c478db6a5c131540cebc739f9c0a9a8"
"c720c2abdd14a891", /* r */
"a91fb738f9f175d72f9c98527e881c36"
"8de68cb55ffe589"); /* s */
test_ecdsa (&nettle_secp_224r1,
"446df0a771ed58403ca9cb316e617f6b"
"158420465d00a69601e22858", /* z */
"4c13f1905ad7eb201178bc08e0c9267b"
"4751c15d5e1831ca214c33f4", /* z */
SHEX("1b28a611fe62ab3649350525d06703ba"
"4b979a1e543566fd5caa85c6"), /* h */
"2cc280778f3d067df6d3adbe3a6aad63"
"bc75f08f5c5f915411902a99", /* r */
"d0f069fd0f108eb07b7bbc54c8d6c88d"
"f2715c38a95c31a2b486995f"); /* s */
/* From RFC 4754 */
test_ecdsa (&nettle_secp_256r1,
"DC51D386 6A15BACD E33D96F9 92FCA99D"
"A7E6EF09 34E70975 59C27F16 14C88A7F", /* z */
"9E56F509 196784D9 63D1C0A4 01510EE7"
"ADA3DCC5 DEE04B15 4BF61AF1 D5A6DECE", /* k */
SHEX("BA7816BF 8F01CFEA 414140DE 5DAE2223"
"B00361A3 96177A9C B410FF61 F20015AD"), /* h */
"CB28E099 9B9C7715 FD0A80D8 E47A7707"
"9716CBBF 917DD72E 97566EA1 C066957C", /* r */
"86FA3BB4 E26CAD5B F90B7F81 899256CE"
"7594BB1E A0C89212 748BFF3B 3D5B0315"); /* s */
test_ecdsa (&nettle_secp_384r1,
"0BEB6466 34BA8773 5D77AE48 09A0EBEA"
"865535DE 4C1E1DCB 692E8470 8E81A5AF"
"62E528C3 8B2A81B3 5309668D 73524D9F", /* z */
"B4B74E44 D71A13D5 68003D74 89908D56"
"4C7761E2 29C58CBF A1895009 6EB7463B"
"854D7FA9 92F934D9 27376285 E63414FA", /* k */
SHEX("CB00753F 45A35E8B B5A03D69 9AC65007"
"272C32AB 0EDED163 1A8B605A 43FF5BED"
"8086072B A1E7CC23 58BAECA1 34C825A7"), /* h */
"FB017B91 4E291494 32D8BAC2 9A514640"
"B46F53DD AB2C6994 8084E293 0F1C8F7E"
"08E07C9C 63F2D21A 07DCB56A 6AF56EB3", /* r */
"B263A130 5E057F98 4D38726A 1B468741"
"09F417BC A112674C 528262A4 0A629AF1"
"CBB9F516 CE0FA7D2 FF630863 A00E8B9F"); /* s*/
test_ecdsa (&nettle_secp_521r1,
"0065FDA3 409451DC AB0A0EAD 45495112"
"A3D813C1 7BFD34BD F8C1209D 7DF58491"
"20597779 060A7FF9 D704ADF7 8B570FFA"
"D6F062E9 5C7E0C5D 5481C5B1 53B48B37"
"5FA1", /* z */
"00C1C2B3 05419F5A 41344D7E 4359933D"
"734096F5 56197A9B 244342B8 B62F46F9"
"373778F9 DE6B6497 B1EF825F F24F42F9"
"B4A4BD73 82CFC337 8A540B1B 7F0C1B95"
"6C2F", /* k */
SHEX("DDAF35A1 93617ABA CC417349 AE204131"
"12E6FA4E 89A97EA2 0A9EEEE6 4B55D39A"
"2192992A 274FC1A8 36BA3C23 A3FEEBBD"
"454D4423 643CE80E 2A9AC94F A54CA49F"), /* h */
"0154FD38 36AF92D0 DCA57DD5 341D3053"
"988534FD E8318FC6 AAAAB68E 2E6F4339"
"B19F2F28 1A7E0B22 C269D93C F8794A92"
"78880ED7 DBB8D936 2CAEACEE 54432055"
"2251", /* r */
"017705A7 030290D1 CEB605A9 A1BB03FF"
"9CDD521E 87A696EC 926C8C10 C8362DF4"
"97536710 1F67D1CF 9BCCBF2F 3D239534"
"FA509E70 AAC851AE 01AAC68D 62F86647"
"2660"); /* s */
}