GF2mMatrix.smali

.class public Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;
.super Lorg/spongycastle/pqc/math/linearalgebra/Matrix;
.source "GF2mMatrix.java"


# instance fields
.field protected field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

.field protected matrix:[[I


# direct methods
.method public constructor <init>(Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;[B)V
    .registers 12

    .prologue
    const/4 v1, 0x1

    const/4 v3, 0x0

    .line 32
    invoke-direct {p0}, Lorg/spongycastle/pqc/math/linearalgebra/Matrix;-><init>()V

    .line 34
    iput-object p1, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

    .line 37
    const/16 v0, 0x8

    move v2, v0

    move v0, v1

    .line 39
    :goto_b
    invoke-virtual {p1}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;->getDegree()I

    move-result v4

    if-le v4, v2, :cond_16

    .line 41
    add-int/lit8 v0, v0, 0x1

    .line 42
    add-int/lit8 v2, v2, 0x8

    goto :goto_b

    .line 45
    :cond_16
    array-length v4, p2

    const/4 v5, 0x5

    if-ge v4, v5, :cond_22

    .line 47
    new-instance v0, Ljava/lang/IllegalArgumentException;

    const-string v1, " Error: given array is not encoded matrix over GF(2^m)"

    invoke-direct {v0, v1}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V

    throw v0

    .line 51
    :cond_22
    const/4 v4, 0x3

    aget-byte v4, p2, v4

    and-int/lit16 v4, v4, 0xff

    shl-int/lit8 v4, v4, 0x18

    const/4 v5, 0x2

    aget-byte v5, p2, v5

    and-int/lit16 v5, v5, 0xff

    shl-int/lit8 v5, v5, 0x10

    xor-int/2addr v4, v5

    aget-byte v1, p2, v1

    and-int/lit16 v1, v1, 0xff

    shl-int/lit8 v1, v1, 0x8

    xor-int/2addr v1, v4

    aget-byte v4, p2, v3

    and-int/lit16 v4, v4, 0xff

    xor-int/2addr v1, v4

    iput v1, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    .line 54
    iget v1, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    mul-int/2addr v0, v1

    .line 56
    iget v1, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    if-lez v1, :cond_4c

    array-length v1, p2

    add-int/lit8 v1, v1, -0x4

    rem-int/2addr v1, v0

    if-eqz v1, :cond_54

    .line 58
    :cond_4c
    new-instance v0, Ljava/lang/IllegalArgumentException;

    const-string v1, " Error: given array is not encoded matrix over GF(2^m)"

    invoke-direct {v0, v1}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V

    throw v0

    .line 62
    :cond_54
    array-length v1, p2

    add-int/lit8 v1, v1, -0x4

    div-int v0, v1, v0

    iput v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    .line 64
    iget v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    iget v1, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    filled-new-array {v0, v1}, [I

    move-result-object v0

    sget-object v1, Ljava/lang/Integer;->TYPE:Ljava/lang/Class;

    invoke-static {v1, v0}, Ljava/lang/reflect/Array;->newInstance(Ljava/lang/Class;[I)Ljava/lang/Object;

    move-result-object v0

    check-cast v0, [[I

    iput-object v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->matrix:[[I

    .line 65
    const/4 v0, 0x4

    move v1, v3

    .line 66
    :goto_6f
    iget v4, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    if-ge v1, v4, :cond_ae

    move v4, v3

    .line 68
    :goto_74
    iget v5, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    if-ge v4, v5, :cond_ab

    move v5, v0

    move v0, v3

    .line 70
    :goto_7a
    if-ge v0, v2, :cond_90

    .line 72
    iget-object v6, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->matrix:[[I

    aget-object v7, v6, v1

    aget v8, v7, v4

    add-int/lit8 v6, v5, 0x1

    aget-byte v5, p2, v5

    and-int/lit16 v5, v5, 0xff

    shl-int/2addr v5, v0

    xor-int/2addr v5, v8

    aput v5, v7, v4

    .line 70
    add-int/lit8 v0, v0, 0x8

    move v5, v6

    goto :goto_7a

    .line 74
    :cond_90
    iget-object v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

    iget-object v6, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->matrix:[[I

    aget-object v6, v6, v1

    aget v6, v6, v4

    invoke-virtual {v0, v6}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;->isElementOfThisField(I)Z

    move-result v0

    if-nez v0, :cond_a6

    .line 76
    new-instance v0, Ljava/lang/IllegalArgumentException;

    const-string v1, " Error: given array is not encoded matrix over GF(2^m)"

    invoke-direct {v0, v1}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V

    throw v0

    .line 68
    :cond_a6
    add-int/lit8 v0, v4, 0x1

    move v4, v0

    move v0, v5

    goto :goto_74

    .line 66
    :cond_ab
    add-int/lit8 v1, v1, 0x1

    goto :goto_6f

    .line 81
    :cond_ae
    return-void
.end method

.method protected constructor <init>(Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;[[I)V
    .registers 4

    .prologue
    .line 107
    invoke-direct {p0}, Lorg/spongycastle/pqc/math/linearalgebra/Matrix;-><init>()V

    .line 108
    iput-object p1, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

    .line 109
    iput-object p2, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->matrix:[[I

    .line 110
    array-length v0, p2

    iput v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    .line 111
    const/4 v0, 0x0

    aget-object v0, p2, v0

    array-length v0, v0

    iput v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    .line 112
    return-void
.end method

.method public constructor <init>(Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;)V
    .registers 5

    .prologue
    .line 89
    invoke-direct {p0}, Lorg/spongycastle/pqc/math/linearalgebra/Matrix;-><init>()V

    .line 90
    iget v0, p1, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    iput v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    .line 91
    iget v0, p1, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    iput v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    .line 92
    iget-object v0, p1, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

    iput-object v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

    .line 93
    iget v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    new-array v0, v0, [[I

    iput-object v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->matrix:[[I

    .line 94
    const/4 v0, 0x0

    :goto_16
    iget v1, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    if-ge v0, v1, :cond_29

    .line 96
    iget-object v1, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->matrix:[[I

    iget-object v2, p1, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->matrix:[[I

    aget-object v2, v2, v0

    invoke-static {v2}, Lorg/spongycastle/pqc/math/linearalgebra/IntUtils;->clone([I)[I

    move-result-object v2

    aput-object v2, v1, v0

    .line 94
    add-int/lit8 v0, v0, 0x1

    goto :goto_16

    .line 98
    :cond_29
    return-void
.end method

.method private addToRow([I[I)V
    .registers 7

    .prologue
    .line 283
    array-length v0, p2

    add-int/lit8 v0, v0, -0x1

    :goto_3
    if-ltz v0, :cond_14

    .line 285
    iget-object v1, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

    aget v2, p1, v0

    aget v3, p2, v0

    invoke-virtual {v1, v2, v3}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;->add(II)I

    move-result v1

    aput v1, p2, v0

    .line 283
    add-int/lit8 v0, v0, -0x1

    goto :goto_3

    .line 287
    :cond_14
    return-void
.end method

.method private multRowWithElement([II)[I
    .registers 7

    .prologue
    .line 267
    array-length v0, p1

    new-array v1, v0, [I

    .line 268
    array-length v0, p1

    add-int/lit8 v0, v0, -0x1

    :goto_6
    if-ltz v0, :cond_15

    .line 270
    iget-object v2, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

    aget v3, p1, v0

    invoke-virtual {v2, v3, p2}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;->mult(II)I

    move-result v2

    aput v2, v1, v0

    .line 268
    add-int/lit8 v0, v0, -0x1

    goto :goto_6

    .line 272
    :cond_15
    return-object v1
.end method

.method private multRowWithElementThis([II)V
    .registers 6

    .prologue
    .line 259
    array-length v0, p1

    add-int/lit8 v0, v0, -0x1

    :goto_3
    if-ltz v0, :cond_12

    .line 261
    iget-object v1, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

    aget v2, p1, v0

    invoke-virtual {v1, v2, p2}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;->mult(II)I

    move-result v1

    aput v1, p1, v0

    .line 259
    add-int/lit8 v0, v0, -0x1

    goto :goto_3

    .line 263
    :cond_12
    return-void
.end method

.method private static swapColumns([[III)V
    .registers 5

    .prologue
    .line 252
    aget-object v0, p0, p1

    .line 253
    aget-object v1, p0, p2

    aput-object v1, p0, p1

    .line 254
    aput-object v0, p0, p2

    .line 255
    return-void
.end method


# virtual methods
.method public computeInverse()Lorg/spongycastle/pqc/math/linearalgebra/Matrix;
    .registers 10

    .prologue
    const/4 v6, 0x1

    const/4 v3, 0x0

    .line 175
    iget v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    iget v1, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    if-eq v0, v1, :cond_10

    .line 177
    new-instance v0, Ljava/lang/ArithmeticException;

    const-string v1, "Matrix is not invertible."

    invoke-direct {v0, v1}, Ljava/lang/ArithmeticException;-><init>(Ljava/lang/String;)V

    throw v0

    .line 181
    :cond_10
    iget v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    iget v1, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    filled-new-array {v0, v1}, [I

    move-result-object v0

    sget-object v1, Ljava/lang/Integer;->TYPE:Ljava/lang/Class;

    invoke-static {v1, v0}, Ljava/lang/reflect/Array;->newInstance(Ljava/lang/Class;[I)Ljava/lang/Object;

    move-result-object v0

    check-cast v0, [[I

    .line 182
    iget v1, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    add-int/lit8 v1, v1, -0x1

    :goto_24
    if-ltz v1, :cond_33

    .line 184
    iget-object v2, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->matrix:[[I

    aget-object v2, v2, v1

    invoke-static {v2}, Lorg/spongycastle/pqc/math/linearalgebra/IntUtils;->clone([I)[I

    move-result-object v2

    aput-object v2, v0, v1

    .line 182
    add-int/lit8 v1, v1, -0x1

    goto :goto_24

    .line 188
    :cond_33
    iget v1, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    iget v2, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    filled-new-array {v1, v2}, [I

    move-result-object v1

    sget-object v2, Ljava/lang/Integer;->TYPE:Ljava/lang/Class;

    invoke-static {v2, v1}, Ljava/lang/reflect/Array;->newInstance(Ljava/lang/Class;[I)Ljava/lang/Object;

    move-result-object v1

    check-cast v1, [[I

    .line 189
    iget v2, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    add-int/lit8 v2, v2, -0x1

    :goto_47
    if-ltz v2, :cond_50

    .line 191
    aget-object v4, v1, v2

    aput v6, v4, v2

    .line 189
    add-int/lit8 v2, v2, -0x1

    goto :goto_47

    :cond_50
    move v2, v3

    .line 196
    :goto_51
    iget v4, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    if-ge v2, v4, :cond_bb

    .line 199
    aget-object v4, v0, v2

    aget v4, v4, v2

    if-nez v4, :cond_7e

    .line 203
    add-int/lit8 v4, v2, 0x1

    move v5, v3

    :goto_5e
    iget v7, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    if-ge v4, v7, :cond_74

    .line 205
    aget-object v7, v0, v4

    aget v7, v7, v2

    if-eqz v7, :cond_71

    .line 209
    invoke-static {v0, v2, v4}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->swapColumns([[III)V

    .line 210
    invoke-static {v1, v2, v4}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->swapColumns([[III)V

    .line 212
    iget v4, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    move v5, v6

    .line 203
    :cond_71
    add-int/lit8 v4, v4, 0x1

    goto :goto_5e

    .line 217
    :cond_74
    if-nez v5, :cond_7e

    .line 220
    new-instance v0, Ljava/lang/ArithmeticException;

    const-string v1, "Matrix is not invertible."

    invoke-direct {v0, v1}, Ljava/lang/ArithmeticException;-><init>(Ljava/lang/String;)V

    throw v0

    .line 225
    :cond_7e
    aget-object v4, v0, v2

    aget v4, v4, v2

    .line 226
    iget-object v5, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

    invoke-virtual {v5, v4}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;->inverse(I)I

    move-result v4

    .line 227
    aget-object v5, v0, v2

    invoke-direct {p0, v5, v4}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->multRowWithElementThis([II)V

    .line 228
    aget-object v5, v1, v2

    invoke-direct {p0, v5, v4}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->multRowWithElementThis([II)V

    move v4, v3

    .line 231
    :goto_93
    iget v5, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    if-ge v4, v5, :cond_b8

    .line 233
    if-eq v4, v2, :cond_b5

    .line 235
    aget-object v5, v0, v4

    aget v5, v5, v2

    .line 236
    if-eqz v5, :cond_b5

    .line 238
    aget-object v7, v0, v2

    invoke-direct {p0, v7, v5}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->multRowWithElement([II)[I

    move-result-object v7

    .line 239
    aget-object v8, v1, v2

    invoke-direct {p0, v8, v5}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->multRowWithElement([II)[I

    move-result-object v5

    .line 240
    aget-object v8, v0, v4

    invoke-direct {p0, v7, v8}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->addToRow([I[I)V

    .line 241
    aget-object v7, v1, v4

    invoke-direct {p0, v5, v7}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->addToRow([I[I)V

    .line 231
    :cond_b5
    add-int/lit8 v4, v4, 0x1

    goto :goto_93

    .line 196
    :cond_b8
    add-int/lit8 v2, v2, 0x1

    goto :goto_51

    .line 247
    :cond_bb
    new-instance v0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;

    iget-object v2, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

    invoke-direct {v0, v2, v1}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;-><init>(Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;[[I)V

    return-object v0
.end method

.method public equals(Ljava/lang/Object;)Z
    .registers 7

    .prologue
    const/4 v1, 0x0

    .line 319
    if-eqz p1, :cond_7

    instance-of v0, p1, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;

    if-nez v0, :cond_8

    .line 344
    :cond_7
    :goto_7
    return v1

    .line 324
    :cond_8
    check-cast p1, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;

    .line 326
    iget-object v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

    iget-object v2, p1, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

    invoke-virtual {v0, v2}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;->equals(Ljava/lang/Object;)Z

    move-result v0

    if-eqz v0, :cond_7

    iget v0, p1, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    iget v2, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    if-ne v0, v2, :cond_7

    iget v0, p1, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    iget v2, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    if-ne v0, v2, :cond_7

    move v0, v1

    .line 333
    :goto_21
    iget v2, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    if-ge v0, v2, :cond_3e

    move v2, v1

    .line 335
    :goto_26
    iget v3, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    if-ge v2, v3, :cond_3b

    .line 337
    iget-object v3, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->matrix:[[I

    aget-object v3, v3, v0

    aget v3, v3, v2

    iget-object v4, p1, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->matrix:[[I

    aget-object v4, v4, v0

    aget v4, v4, v2

    if-ne v3, v4, :cond_7

    .line 335
    add-int/lit8 v2, v2, 0x1

    goto :goto_26

    .line 333
    :cond_3b
    add-int/lit8 v0, v0, 0x1

    goto :goto_21

    .line 344
    :cond_3e
    const/4 v1, 0x1

    goto :goto_7
.end method

.method public getEncoded()[B
    .registers 10

    .prologue
    const/4 v1, 0x1

    const/4 v3, 0x0

    .line 119
    const/16 v0, 0x8

    move v2, v0

    move v0, v1

    .line 121
    :goto_6
    iget-object v4, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

    invoke-virtual {v4}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;->getDegree()I

    move-result v4

    if-le v4, v2, :cond_13

    .line 123
    add-int/lit8 v0, v0, 0x1

    .line 124
    add-int/lit8 v2, v2, 0x8

    goto :goto_6

    .line 127
    :cond_13
    iget v4, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    iget v5, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    mul-int/2addr v4, v5

    mul-int/2addr v0, v4

    add-int/lit8 v0, v0, 0x4

    new-array v7, v0, [B

    .line 128
    iget v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    int-to-byte v0, v0

    aput-byte v0, v7, v3

    .line 129
    iget v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    ushr-int/lit8 v0, v0, 0x8

    int-to-byte v0, v0

    aput-byte v0, v7, v1

    .line 130
    const/4 v0, 0x2

    iget v1, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    ushr-int/lit8 v1, v1, 0x10

    int-to-byte v1, v1

    aput-byte v1, v7, v0

    .line 131
    const/4 v0, 0x3

    iget v1, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    shr-int/lit8 v1, v1, 0x18

    aput-byte v1, v7, v0

    .line 133
    const/4 v0, 0x4

    move v1, v0

    move v0, v3

    .line 134
    :goto_3b
    iget v4, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    if-ge v0, v4, :cond_60

    move v4, v3

    .line 136
    :goto_40
    iget v5, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    if-ge v4, v5, :cond_5d

    move v5, v1

    move v1, v3

    .line 138
    :goto_46
    if-ge v1, v2, :cond_58

    .line 140
    add-int/lit8 v6, v5, 0x1

    iget-object v8, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->matrix:[[I

    aget-object v8, v8, v0

    aget v8, v8, v4

    ushr-int/2addr v8, v1

    int-to-byte v8, v8

    aput-byte v8, v7, v5

    .line 138
    add-int/lit8 v1, v1, 0x8

    move v5, v6

    goto :goto_46

    .line 136
    :cond_58
    add-int/lit8 v1, v4, 0x1

    move v4, v1

    move v1, v5

    goto :goto_40

    .line 134
    :cond_5d
    add-int/lit8 v0, v0, 0x1

    goto :goto_3b

    .line 145
    :cond_60
    return-object v7
.end method

.method public hashCode()I
    .registers 6

    .prologue
    const/4 v1, 0x0

    .line 349
    iget-object v0, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

    invoke-virtual {v0}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;->hashCode()I

    move-result v0

    mul-int/lit8 v0, v0, 0x1f

    iget v2, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    add-int/2addr v0, v2

    mul-int/lit8 v0, v0, 0x1f

    iget v2, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    add-int/2addr v0, v2

    move v2, v0

    move v0, v1

    .line 350
    :goto_13
    iget v3, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    if-ge v0, v3, :cond_2d

    move v3, v1

    .line 352
    :goto_18
    iget v4, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    if-ge v3, v4, :cond_2a

    .line 354
    mul-int/lit8 v2, v2, 0x1f

    iget-object v4, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->matrix:[[I

    aget-object v4, v4, v0

    aget v4, v4, v3

    add-int/2addr v4, v2

    .line 352
    add-int/lit8 v2, v3, 0x1

    move v3, v2

    move v2, v4

    goto :goto_18

    .line 350
    :cond_2a
    add-int/lit8 v0, v0, 0x1

    goto :goto_13

    .line 357
    :cond_2d
    return v2
.end method

.method public isZero()Z
    .registers 5

    .prologue
    const/4 v1, 0x0

    .line 155
    move v0, v1

    :goto_2
    iget v2, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    if-ge v0, v2, :cond_1a

    move v2, v1

    .line 157
    :goto_7
    iget v3, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    if-ge v2, v3, :cond_17

    .line 159
    iget-object v3, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->matrix:[[I

    aget-object v3, v3, v0

    aget v3, v3, v2

    if-eqz v3, :cond_14

    .line 165
    :goto_13
    return v1

    .line 157
    :cond_14
    add-int/lit8 v2, v2, 0x1

    goto :goto_7

    .line 155
    :cond_17
    add-int/lit8 v0, v0, 0x1

    goto :goto_2

    .line 165
    :cond_1a
    const/4 v1, 0x1

    goto :goto_13
.end method

.method public leftMultiply(Lorg/spongycastle/pqc/math/linearalgebra/Vector;)Lorg/spongycastle/pqc/math/linearalgebra/Vector;
    .registers 4

    .prologue
    .line 301
    new-instance v0, Ljava/lang/RuntimeException;

    const-string v1, "Not implemented."

    invoke-direct {v0, v1}, Ljava/lang/RuntimeException;-><init>(Ljava/lang/String;)V

    throw v0
.end method

.method public rightMultiply(Lorg/spongycastle/pqc/math/linearalgebra/Matrix;)Lorg/spongycastle/pqc/math/linearalgebra/Matrix;
    .registers 4

    .prologue
    .line 291
    new-instance v0, Ljava/lang/RuntimeException;

    const-string v1, "Not implemented."

    invoke-direct {v0, v1}, Ljava/lang/RuntimeException;-><init>(Ljava/lang/String;)V

    throw v0
.end method

.method public rightMultiply(Lorg/spongycastle/pqc/math/linearalgebra/Permutation;)Lorg/spongycastle/pqc/math/linearalgebra/Matrix;
    .registers 4

    .prologue
    .line 296
    new-instance v0, Ljava/lang/RuntimeException;

    const-string v1, "Not implemented."

    invoke-direct {v0, v1}, Ljava/lang/RuntimeException;-><init>(Ljava/lang/String;)V

    throw v0
.end method

.method public rightMultiply(Lorg/spongycastle/pqc/math/linearalgebra/Vector;)Lorg/spongycastle/pqc/math/linearalgebra/Vector;
    .registers 4

    .prologue
    .line 306
    new-instance v0, Ljava/lang/RuntimeException;

    const-string v1, "Not implemented."

    invoke-direct {v0, v1}, Ljava/lang/RuntimeException;-><init>(Ljava/lang/String;)V

    throw v0
.end method

.method public toString()Ljava/lang/String;
    .registers 7

    .prologue
    const/4 v1, 0x0

    .line 362
    new-instance v0, Ljava/lang/StringBuilder;

    invoke-direct {v0}, Ljava/lang/StringBuilder;-><init>()V

    iget v2, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    invoke-virtual {v0, v2}, Ljava/lang/StringBuilder;->append(I)Ljava/lang/StringBuilder;

    move-result-object v0

    const-string v2, " x "

    invoke-virtual {v0, v2}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v0

    iget v2, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    invoke-virtual {v0, v2}, Ljava/lang/StringBuilder;->append(I)Ljava/lang/StringBuilder;

    move-result-object v0

    const-string v2, " Matrix over "

    invoke-virtual {v0, v2}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v0

    iget-object v2, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

    .line 363
    invoke-virtual {v2}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;->toString()Ljava/lang/String;

    move-result-object v2

    invoke-virtual {v0, v2}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v0

    const-string v2, ": \n"

    invoke-virtual {v0, v2}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v0

    invoke-virtual {v0}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v0

    move-object v2, v0

    move v0, v1

    .line 365
    :goto_34
    iget v3, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numRows:I

    if-ge v0, v3, :cond_7a

    move-object v3, v2

    move v2, v1

    .line 367
    :goto_3a
    iget v4, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->numColumns:I

    if-ge v2, v4, :cond_64

    .line 369
    new-instance v4, Ljava/lang/StringBuilder;

    invoke-direct {v4}, Ljava/lang/StringBuilder;-><init>()V

    invoke-virtual {v4, v3}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v3

    iget-object v4, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->field:Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;

    iget-object v5, p0, Lorg/spongycastle/pqc/math/linearalgebra/GF2mMatrix;->matrix:[[I

    aget-object v5, v5, v0

    aget v5, v5, v2

    invoke-virtual {v4, v5}, Lorg/spongycastle/pqc/math/linearalgebra/GF2mField;->elementToStr(I)Ljava/lang/String;

    move-result-object v4

    invoke-virtual {v3, v4}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v3

    const-string v4, " : "

    invoke-virtual {v3, v4}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v3

    invoke-virtual {v3}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v3

    .line 367
    add-int/lit8 v2, v2, 0x1

    goto :goto_3a

    .line 371
    :cond_64
    new-instance v2, Ljava/lang/StringBuilder;

    invoke-direct {v2}, Ljava/lang/StringBuilder;-><init>()V

    invoke-virtual {v2, v3}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v2

    const-string v3, "\n"

    invoke-virtual {v2, v3}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v2

    invoke-virtual {v2}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v2

    .line 365
    add-int/lit8 v0, v0, 0x1

    goto :goto_34

    .line 374
    :cond_7a
    return-object v2
.end method