Commit c33b0ea6 by Niels Möller

### Comment fixes.

parent 1a6bd65f
 ... @@ -68,9 +68,10 @@ ecc_eh_to_a (const struct ecc_curve *ecc, ... @@ -68,9 +68,10 @@ ecc_eh_to_a (const struct ecc_curve *ecc, /* Skip y coordinate */ /* Skip y coordinate */ if (op > 1) if (op > 1) { { /* Reduce modulo q. FIXME: Hardcoded for curve25519, /* Reduce modulo q. Hardcoded for curve25519, duplicates end duplicates end of ecc_25519_modq. FIXME: Is this needed of ecc_25519_modq. FIXME: Is this needed at all? op > 0 at all? Full reduction mod p is maybe sufficient. */ is only used by ecdsa code, and ecdsa on Edwards curves makes little sense and is is only used by tests. */ unsigned shift; unsigned shift; assert (ecc->p.bit_size == 255); assert (ecc->p.bit_size == 255); shift = ecc->q.bit_size - 1 - GMP_NUMB_BITS * (ecc->p.size - 1); shift = ecc->q.bit_size - 1 - GMP_NUMB_BITS * (ecc->p.size - 1); ... ...
 ... @@ -283,17 +283,16 @@ ecc_a_to_j (const struct ecc_curve *ecc, ... @@ -283,17 +283,16 @@ ecc_a_to_j (const struct ecc_curve *ecc, /* Converts a point P in jacobian coordinates into a point R in affine /* Converts a point P in jacobian coordinates into a point R in affine coordinates. If op == 1, produce x coordinate only. If op == 2, coordinates. If op == 1, produce x coordinate only. If op == 2, produce the x coordiante only, and in also it modulo q. FIXME: For produce the x coordinate only, and also reduce it modulo q. */ the public interface, have separate for the three cases, and use this flag argument only for the internal ecc->h_to_a function. */ void void ecc_j_to_a (const struct ecc_curve *ecc, ecc_j_to_a (const struct ecc_curve *ecc, int op, int op, mp_limb_t *r, const mp_limb_t *p, mp_limb_t *r, const mp_limb_t *p, mp_limb_t *scratch); mp_limb_t *scratch); /* Converts a point P on an Edwards curve to affine coordinates on /* Converts a point P in homogeneous coordinates on an Edwards curve the corresponding Montgomery curve. */ to affine coordinates. Meaning of op is the same as for ecc_j_to_a. */ void void ecc_eh_to_a (const struct ecc_curve *ecc, ecc_eh_to_a (const struct ecc_curve *ecc, int op, int op, ... ...
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