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Save memory by removing unused code

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This commit is contained in:
Peter D. Gray 2019-09-23 10:42:43 -04:00
parent 36785f9558
commit a01b0cbb35
1 changed files with 10 additions and 0 deletions
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10
stm32/bootloader/micro-ecc/uECC.c
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@ -282,6 +282,7 @@ uECC_VLI_API uECC_word_t uECC_vli_sub(uECC_word_t *result,
const uECC_word_t *right,
wordcount_t num_words);
#ifndef NO_SIGNING
/* Returns sign of left - right, in constant time. */
uECC_VLI_API cmpresult_t uECC_vli_cmp(const uECC_word_t *left,
const uECC_word_t *right,
@ -291,6 +292,7 @@ uECC_VLI_API cmpresult_t uECC_vli_cmp(const uECC_word_t *left,
uECC_word_t equal = uECC_vli_isZero(tmp, num_words);
return (!equal - 2 * neg);
}
#endif
/* Computes vli = vli >> 1. */
#if !asm_rshift1
@ -739,6 +741,7 @@ static void apply_z(uECC_word_t * X1,
uECC_vli_modMult_fast(Y1, Y1, t1, curve); /* y1 * z^3 */
}
#ifndef NO_SIGNING
/* P = (x1, y1) => 2P, (x2, y2) => P' */
static void XYcZ_initial_double(uECC_word_t * X1,
uECC_word_t * Y1,
@ -762,6 +765,7 @@ static void XYcZ_initial_double(uECC_word_t * X1,
curve->double_jacobian(X1, Y1, z, curve);
apply_z(X2, Y2, z, curve);
}
#endif
/* Input P = (x1, y1, Z), Q = (x2, y2, Z)
Output P' = (x1', y1', Z3), P + Q = (x3, y3, Z3)
@ -794,6 +798,7 @@ static void XYcZ_add(uECC_word_t * X1,
uECC_vli_set(X2, t5, num_words);
}
#ifndef NO_SIGNING
/* Input P = (x1, y1, Z), Q = (x2, y2, Z)
Output P + Q = (x3, y3, Z3), P - Q = (x3', y3', Z3)
or P => P - Q, Q => P + Q
@ -913,6 +918,7 @@ static uECC_word_t EccPoint_compute_public_key(uECC_word_t *result,
}
return 1;
}
#endif
#if uECC_WORD_SIZE == 1
@ -957,6 +963,7 @@ uECC_VLI_API void uECC_vli_bytesToNative(uECC_word_t *native,
#endif /* uECC_WORD_SIZE */
#ifndef NO_SIGNING
/* Generates a random integer in the range 0 < random < top.
Both random and top have num_words words. */
uECC_VLI_API int uECC_generate_random_int(uECC_word_t *random,
@ -1040,6 +1047,7 @@ int uECC_shared_secret(const uint8_t *public_key,
uECC_vli_nativeToBytes(secret, num_bytes, public);
return !EccPoint_isZero(public, curve);
}
#endif
#if uECC_SUPPORT_COMPRESSED_POINT
void uECC_compress(const uint8_t *public_key, uint8_t *compressed, uECC_Curve curve) {
@ -1066,6 +1074,7 @@ void uECC_decompress(const uint8_t *compressed, uint8_t *public_key, uECC_Curve
}
#endif /* uECC_SUPPORT_COMPRESSED_POINT */
#ifndef NO_SIGNING
int uECC_valid_point(const uECC_word_t *point, uECC_Curve curve) {
uECC_word_t tmp1[uECC_MAX_WORDS];
uECC_word_t tmp2[uECC_MAX_WORDS];
@ -1123,6 +1132,7 @@ int uECC_compute_public_key(const uint8_t *private_key, uint8_t *public_key, uEC
public_key + curve->num_bytes, curve->num_bytes, public + curve->num_words);
return 1;
}
#endif // NO_SIGNING
/* -------- ECDSA code -------- */