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Decided to not support ECDSA for secp160r1 since it is a pain.

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This commit is contained in:
Ken MacKay
2014-03-25 22:51:10 -07:00
parent 938ea44f22
commit 62896a06a4
1 changed files with 2 additions and 3 deletions
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ecc.c
+2 -3
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@@ -1719,7 +1719,7 @@ void ecc_decompress(uint8_t p_compressed[ECC_BYTES+1], uint8_t p_publicKey[ECC_B
/* -------- ECDSA code -------- */ /* -------- ECDSA code -------- */
/* Computes p_vli = p_vli >> 1. */ #if (ECC_CURVE != secp160r1)
static void vli2_rshift1(ecc_word_t *p_vli) static void vli2_rshift1(ecc_word_t *p_vli)
{ {
vli_rshift1(p_vli); vli_rshift1(p_vli);
@@ -1727,7 +1727,6 @@ static void vli2_rshift1(ecc_word_t *p_vli)
vli_rshift1(p_vli + ECC_WORDS); vli_rshift1(p_vli + ECC_WORDS);
} }
/* Computes p_result = p_left - p_right, returning borrow. Can modify in place. */
static ecc_word_t vli2_sub(ecc_word_t *p_result, ecc_word_t *p_left, ecc_word_t *p_right) static ecc_word_t vli2_sub(ecc_word_t *p_result, ecc_word_t *p_left, ecc_word_t *p_right)
{ {
ecc_word_t l_borrow = 0; ecc_word_t l_borrow = 0;
@@ -1768,7 +1767,6 @@ static void vli_modMult_n(ecc_word_t *p_result, ecc_word_t *p_left, ecc_word_t *
vli_set(p_result, v[l_index]); vli_set(p_result, v[l_index]);
} }
#include <stdio.h>
int ecdsa_sign(const uint8_t p_privateKey[ECC_BYTES], const uint8_t p_hash[ECC_BYTES], uint8_t p_signature[ECC_BYTES*2]) int ecdsa_sign(const uint8_t p_privateKey[ECC_BYTES], const uint8_t p_hash[ECC_BYTES], uint8_t p_signature[ECC_BYTES*2])
{ {
ecc_word_t k[ECC_WORDS]; ecc_word_t k[ECC_WORDS];
@@ -1925,3 +1923,4 @@ int ecdsa_verify(const uint8_t p_publicKey[ECC_BYTES*2], const uint8_t p_hash[EC
/* Accept only if v == r. */ /* Accept only if v == r. */
return (vli_cmp(rx, r) == 0); return (vli_cmp(rx, r) == 0);
} }
#endif /* (ECC_CURVE != secp160r1) */