package org.bouncycastle.math.ec.custom.sec; import java.math.BigInteger; import org.bouncycastle.math.raw.Nat; import org.bouncycastle.math.raw.Nat192; /* loaded from: classes6.dex */ public class SecP192K1Field { private static final int P5 = -1; private static final int PExt11 = -1; private static final int PInv33 = 4553; static final int[] P = {-4553, -2, -1, -1, -1, -1}; static final int[] PExt = {20729809, 9106, 1, 0, 0, 0, -9106, -3, -1, -1, -1, -1}; private static final int[] PExtInv = {-20729809, -9107, -2, -1, -1, -1, 9105, 2}; public static void twice(int[] iArr, int[] iArr2) { if (Nat.shiftUpBit(6, iArr, 0, iArr2) != 0 || (iArr2[5] == -1 && Nat192.gte(iArr2, P))) { Nat.add33To(6, PInv33, iArr2); } } public static void subtractExt(int[] iArr, int[] iArr2, int[] iArr3) { if (Nat.sub(12, iArr, iArr2, iArr3) != 0) { int[] iArr4 = PExtInv; if (Nat.subFrom(iArr4.length, iArr4, iArr3) != 0) { Nat.decAt(12, iArr3, iArr4.length); } } } public static void subtract(int[] iArr, int[] iArr2, int[] iArr3) { if (Nat192.sub(iArr, iArr2, iArr3) != 0) { Nat.sub33From(6, PInv33, iArr3); } } public static void squareN(int[] iArr, int i, int[] iArr2) { int[] createExt = Nat192.createExt(); Nat192.square(iArr, createExt); while (true) { reduce(createExt, iArr2); i--; if (i <= 0) { return; } else { Nat192.square(iArr2, createExt); } } } public static void square(int[] iArr, int[] iArr2) { int[] createExt = Nat192.createExt(); Nat192.square(iArr, createExt); reduce(createExt, iArr2); } public static void reduce32(int i, int[] iArr) { if ((i == 0 || Nat192.mul33WordAdd(PInv33, i, iArr, 0) == 0) && !(iArr[5] == -1 && Nat192.gte(iArr, P))) { return; } Nat.add33To(6, PInv33, iArr); } public static void reduce(int[] iArr, int[] iArr2) { if (Nat192.mul33DWordAdd(PInv33, Nat192.mul33Add(PInv33, iArr, 6, iArr, 0, iArr2, 0), iArr2, 0) != 0 || (iArr2[5] == -1 && Nat192.gte(iArr2, P))) { Nat.add33To(6, PInv33, iArr2); } } public static void negate(int[] iArr, int[] iArr2) { if (Nat192.isZero(iArr)) { Nat192.zero(iArr2); } else { Nat192.sub(P, iArr, iArr2); } } public static void multiplyAddToExt(int[] iArr, int[] iArr2, int[] iArr3) { if (Nat192.mulAddTo(iArr, iArr2, iArr3) != 0 || (iArr3[11] == -1 && Nat.gte(12, iArr3, PExt))) { int[] iArr4 = PExtInv; if (Nat.addTo(iArr4.length, iArr4, iArr3) != 0) { Nat.incAt(12, iArr3, iArr4.length); } } } public static void multiply(int[] iArr, int[] iArr2, int[] iArr3) { int[] createExt = Nat192.createExt(); Nat192.mul(iArr, iArr2, createExt); reduce(createExt, iArr3); } public static void half(int[] iArr, int[] iArr2) { if ((iArr[0] & 1) == 0) { Nat.shiftDownBit(6, iArr, 0, iArr2); } else { Nat.shiftDownBit(6, iArr2, Nat192.add(iArr, P, iArr2)); } } public static int[] fromBigInteger(BigInteger bigInteger) { int[] fromBigInteger = Nat192.fromBigInteger(bigInteger); if (fromBigInteger[5] == -1) { int[] iArr = P; if (Nat192.gte(fromBigInteger, iArr)) { Nat192.subFrom(iArr, fromBigInteger); } } return fromBigInteger; } public static void addOne(int[] iArr, int[] iArr2) { if (Nat.inc(6, iArr, iArr2) != 0 || (iArr2[5] == -1 && Nat192.gte(iArr2, P))) { Nat.add33To(6, PInv33, iArr2); } } public static void addExt(int[] iArr, int[] iArr2, int[] iArr3) { if (Nat.add(12, iArr, iArr2, iArr3) != 0 || (iArr3[11] == -1 && Nat.gte(12, iArr3, PExt))) { int[] iArr4 = PExtInv; if (Nat.addTo(iArr4.length, iArr4, iArr3) != 0) { Nat.incAt(12, iArr3, iArr4.length); } } } public static void add(int[] iArr, int[] iArr2, int[] iArr3) { if (Nat192.add(iArr, iArr2, iArr3) != 0 || (iArr3[5] == -1 && Nat192.gte(iArr3, P))) { Nat.add33To(6, PInv33, iArr3); } } }