package org.bouncycastle.math.ec.custom.sec; import io.flutter.embedding.android.KeyboardMap; import java.math.BigInteger; import org.bouncycastle.math.raw.Interleave; import org.bouncycastle.math.raw.Nat256; /* loaded from: classes6.dex */ public class SecT193Field { private static final long M01 = 1; private static final long M49 = 562949953421311L; public static int trace(long[] jArr) { return ((int) jArr[0]) & 1; } public static void squareN(long[] jArr, int i, long[] jArr2) { long[] createExt64 = Nat256.createExt64(); implSquare(jArr, createExt64); while (true) { reduce(createExt64, jArr2); i--; if (i <= 0) { return; } else { implSquare(jArr2, createExt64); } } } public static void squareAddToExt(long[] jArr, long[] jArr2) { long[] createExt64 = Nat256.createExt64(); implSquare(jArr, createExt64); addExt(jArr2, createExt64, jArr2); } public static void square(long[] jArr, long[] jArr2) { long[] createExt64 = Nat256.createExt64(); implSquare(jArr, createExt64); reduce(createExt64, jArr2); } public static void sqrt(long[] jArr, long[] jArr2) { long unshuffle = Interleave.unshuffle(jArr[0]); long unshuffle2 = Interleave.unshuffle(jArr[1]); long j = (unshuffle >>> 32) | ((-4294967296L) & unshuffle2); long unshuffle3 = Interleave.unshuffle(jArr[2]); long j2 = jArr[3]; long j3 = unshuffle3 >>> 32; jArr2[0] = ((unshuffle & KeyboardMap.kValueMask) | (unshuffle2 << 32)) ^ (j << 8); jArr2[1] = ((((unshuffle3 & KeyboardMap.kValueMask) ^ (j2 << 32)) ^ (j3 << 8)) ^ (j >>> 56)) ^ (j << 33); jArr2[2] = (j >>> 31) ^ ((unshuffle3 >>> 88) ^ (j3 << 33)); jArr2[3] = unshuffle3 >>> 63; } public static void reduce63(long[] jArr, int i) { int i2 = i + 3; long j = jArr[i2]; long j2 = j >>> M01; jArr[i] = (j2 ^ (j2 << 15)) ^ jArr[i]; int i3 = i + 1; jArr[i3] = jArr[i3] ^ (j >>> 50); jArr[i2] = j & M01; } public static void reduce(long[] jArr, long[] jArr2) { long j = jArr[0]; long j2 = jArr[1]; long j3 = jArr[2]; long j4 = jArr[3]; long j5 = jArr[4]; long j6 = jArr[5]; long j7 = jArr[6]; long j8 = j5 ^ (j7 >>> 50); long j9 = (j4 ^ ((j7 >>> M01) ^ (j7 << 14))) ^ (j6 >>> 50); long j10 = j9 >>> M01; jArr2[0] = ((j ^ (j8 << 63)) ^ j10) ^ (j10 << 15); jArr2[1] = (j9 >>> 50) ^ ((j2 ^ (j6 << 63)) ^ ((j8 >>> M01) ^ (j8 << 14))); jArr2[2] = (((j7 << 63) ^ j3) ^ ((j6 >>> M01) ^ (j6 << 14))) ^ (j8 >>> 50); jArr2[3] = M01 & j9; } public static void multiplyAddToExt(long[] jArr, long[] jArr2, long[] jArr3) { long[] createExt64 = Nat256.createExt64(); implMultiply(jArr, jArr2, createExt64); addExt(jArr3, createExt64, jArr3); } public static void multiply(long[] jArr, long[] jArr2, long[] jArr3) { long[] createExt64 = Nat256.createExt64(); implMultiply(jArr, jArr2, createExt64); reduce(createExt64, jArr3); } public static void invert(long[] jArr, long[] jArr2) { if (Nat256.isZero64(jArr)) { throw new IllegalStateException(); } long[] create64 = Nat256.create64(); long[] create642 = Nat256.create64(); square(jArr, create64); squareN(create64, 1, create642); multiply(create64, create642, create64); squareN(create642, 1, create642); multiply(create64, create642, create64); squareN(create64, 3, create642); multiply(create64, create642, create64); squareN(create64, 6, create642); multiply(create64, create642, create64); squareN(create64, 12, create642); multiply(create64, create642, create64); squareN(create64, 24, create642); multiply(create64, create642, create64); squareN(create64, 48, create642); multiply(create64, create642, create64); squareN(create64, 96, create642); multiply(create64, create642, jArr2); } protected static void implSquare(long[] jArr, long[] jArr2) { Interleave.expand64To128(jArr[0], jArr2, 0); Interleave.expand64To128(jArr[1], jArr2, 2); Interleave.expand64To128(jArr[2], jArr2, 4); jArr2[6] = jArr[3] & M01; } protected static void implMulwAcc(long j, long j2, long[] jArr, int i) { long j3 = j2 << M01; long j4 = j3 ^ j2; long j5 = j2 << 2; long j6 = j4 << M01; long[] jArr2 = {0, j2, j3, j4, j5, j5 ^ j2, j6, j6 ^ j2}; int i2 = (int) j; long j7 = (jArr2[(i2 >>> 3) & 7] << 3) ^ jArr2[i2 & 7]; long j8 = 0; int i3 = 36; do { int i4 = (int) (j >>> i3); long j9 = (((jArr2[i4 & 7] ^ (jArr2[(i4 >>> 3) & 7] << 3)) ^ (jArr2[(i4 >>> 6) & 7] << 6)) ^ (jArr2[(i4 >>> 9) & 7] << 9)) ^ (jArr2[(i4 >>> 12) & 7] << 12); j7 ^= j9 << i3; j8 ^= j9 >>> (-i3); i3 -= 15; } while (i3 > 0); jArr[i] = jArr[i] ^ (M49 & j7); int i5 = i + 1; jArr[i5] = jArr[i5] ^ ((j7 >>> 49) ^ (j8 << 15)); } protected static void implMultiply(long[] jArr, long[] jArr2, long[] jArr3) { long[] jArr4 = new long[4]; long[] jArr5 = new long[4]; implExpand(jArr, jArr4); implExpand(jArr2, jArr5); implMulwAcc(jArr4[0], jArr5[0], jArr3, 0); implMulwAcc(jArr4[1], jArr5[1], jArr3, 1); implMulwAcc(jArr4[2], jArr5[2], jArr3, 2); implMulwAcc(jArr4[3], jArr5[3], jArr3, 3); for (int i = 5; i > 0; i--) { jArr3[i] = jArr3[i] ^ jArr3[i - 1]; } implMulwAcc(jArr4[0] ^ jArr4[1], jArr5[0] ^ jArr5[1], jArr3, 1); implMulwAcc(jArr4[2] ^ jArr4[3], jArr5[2] ^ jArr5[3], jArr3, 3); for (int i2 = 7; i2 > 1; i2--) { jArr3[i2] = jArr3[i2] ^ jArr3[i2 - 2]; } long j = jArr4[0] ^ jArr4[2]; long j2 = jArr4[1] ^ jArr4[3]; long j3 = jArr5[0] ^ jArr5[2]; long j4 = jArr5[1] ^ jArr5[3]; implMulwAcc(j ^ j2, j3 ^ j4, jArr3, 3); long[] jArr6 = new long[3]; implMulwAcc(j, j3, jArr6, 0); implMulwAcc(j2, j4, jArr6, 1); long j5 = jArr6[0]; long j6 = jArr6[1]; long j7 = jArr6[2]; jArr3[2] = jArr3[2] ^ j5; jArr3[3] = (j5 ^ j6) ^ jArr3[3]; jArr3[4] = jArr3[4] ^ (j7 ^ j6); jArr3[5] = jArr3[5] ^ j7; implCompactExt(jArr3); } protected static void implExpand(long[] jArr, long[] jArr2) { long j = jArr[0]; long j2 = jArr[1]; long j3 = jArr[2]; long j4 = jArr[3]; jArr2[0] = j & M49; jArr2[1] = ((j >>> 49) ^ (j2 << 15)) & M49; jArr2[2] = ((j2 >>> 34) ^ (j3 << 30)) & M49; jArr2[3] = (j3 >>> 19) ^ (j4 << 45); } protected static void implCompactExt(long[] jArr) { long j = jArr[0]; long j2 = jArr[1]; long j3 = jArr[2]; long j4 = jArr[3]; long j5 = jArr[4]; long j6 = jArr[5]; long j7 = jArr[6]; long j8 = jArr[7]; jArr[0] = j ^ (j2 << 49); jArr[1] = (j2 >>> 15) ^ (j3 << 34); jArr[2] = (j3 >>> 30) ^ (j4 << 19); jArr[3] = ((j4 >>> 45) ^ (j5 << 4)) ^ (j6 << 53); jArr[4] = ((j5 >>> 60) ^ (j7 << 38)) ^ (j6 >>> 11); jArr[5] = (j7 >>> 26) ^ (j8 << 23); jArr[6] = j8 >>> 41; jArr[7] = 0; } public static long[] fromBigInteger(BigInteger bigInteger) { long[] fromBigInteger64 = Nat256.fromBigInteger64(bigInteger); reduce63(fromBigInteger64, 0); return fromBigInteger64; } public static void addOne(long[] jArr, long[] jArr2) { jArr2[0] = jArr[0] ^ M01; jArr2[1] = jArr[1]; jArr2[2] = jArr[2]; jArr2[3] = jArr[3]; } public static void addExt(long[] jArr, long[] jArr2, long[] jArr3) { jArr3[0] = jArr[0] ^ jArr2[0]; jArr3[1] = jArr[1] ^ jArr2[1]; jArr3[2] = jArr[2] ^ jArr2[2]; jArr3[3] = jArr[3] ^ jArr2[3]; jArr3[4] = jArr[4] ^ jArr2[4]; jArr3[5] = jArr[5] ^ jArr2[5]; jArr3[6] = jArr2[6] ^ jArr[6]; } public static void add(long[] jArr, long[] jArr2, long[] jArr3) { jArr3[0] = jArr[0] ^ jArr2[0]; jArr3[1] = jArr[1] ^ jArr2[1]; jArr3[2] = jArr[2] ^ jArr2[2]; jArr3[3] = jArr2[3] ^ jArr[3]; } }