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Clean up comments for XYcZ_addC.

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Ken MacKay
2015-06-24 20:54:27 -07:00
parent fed2afb663
commit c1ed73121d
1 changed files with 7 additions and 7 deletions
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uECC.c
+7 -7
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@@ -1551,24 +1551,24 @@ static void XYcZ_addC(uECC_word_t * RESTRICT X1,
vli_modSquare_fast(t5, t5); /* t5 = (x2 - x1)^2 = A */
vli_modMult_fast(X1, X1, t5); /* t1 = x1*A = B */
vli_modMult_fast(X2, X2, t5); /* t3 = x2*A = C */
vli_modAdd(t5, Y2, Y1, curve_p); /* t4 = y2 + y1 */
vli_modAdd(t5, Y2, Y1, curve_p); /* t5 = y2 + y1 */
vli_modSub_fast(Y2, Y2, Y1); /* t4 = y2 - y1 */
vli_modSub_fast(t6, X2, X1); /* t6 = C - B */
vli_modMult_fast(Y1, Y1, t6); /* t2 = y1 * (C - B) */
vli_modMult_fast(Y1, Y1, t6); /* t2 = y1 * (C - B) = E */
vli_modAdd(t6, X1, X2, curve_p); /* t6 = B + C */
vli_modSquare_fast(X2, Y2); /* t3 = (y2 - y1)^2 */
vli_modSub_fast(X2, X2, t6); /* t3 = x3 */
vli_modSquare_fast(X2, Y2); /* t3 = (y2 - y1)^2 = D */
vli_modSub_fast(X2, X2, t6); /* t3 = D - (B + C) = x3 */
vli_modSub_fast(t7, X1, X2); /* t7 = B - x3 */
vli_modMult_fast(Y2, Y2, t7); /* t4 = (y2 - y1)*(B - x3) */
vli_modSub_fast(Y2, Y2, Y1); /* t4 = y3 */
vli_modSub_fast(Y2, Y2, Y1); /* t4 = (y2 - y1)*(B - x3) - E = y3 */
vli_modSquare_fast(t7, t5); /* t7 = (y2 + y1)^2 = F */
vli_modSub_fast(t7, t7, t6); /* t7 = x3' */
vli_modSub_fast(t7, t7, t6); /* t7 = F - (B + C) = x3' */
vli_modSub_fast(t6, t7, X1); /* t6 = x3' - B */
vli_modMult_fast(t6, t6, t5); /* t6 = (y2 + y1)*(x3' - B) */
vli_modSub_fast(Y1, t6, Y1); /* t2 = y3' */
vli_modSub_fast(Y1, t6, Y1); /* t2 = (y2 + y1)*(x3' - B) - E = y3' */
vli_set(X1, t7);
}