ECPoint.smali

.class public abstract Lorg/spongycastle/math/ec/ECPoint;
.super Ljava/lang/Object;
.source "ECPoint.java"


# static fields
.field protected static EMPTY_ZS:[Lorg/spongycastle/math/ec/ECFieldElement;


# instance fields
.field protected curve:Lorg/spongycastle/math/ec/ECCurve;

.field protected preCompTable:Ljava/util/Hashtable;

.field protected withCompression:Z

.field protected x:Lorg/spongycastle/math/ec/ECFieldElement;

.field protected y:Lorg/spongycastle/math/ec/ECFieldElement;

.field protected zs:[Lorg/spongycastle/math/ec/ECFieldElement;


# direct methods
.method static constructor <clinit>()V
    .registers 1

    .prologue
    .line 11
    const/4 v0, 0x0

    new-array v0, v0, [Lorg/spongycastle/math/ec/ECFieldElement;

    sput-object v0, Lorg/spongycastle/math/ec/ECPoint;->EMPTY_ZS:[Lorg/spongycastle/math/ec/ECFieldElement;

    return-void
.end method

.method protected constructor <init>(Lorg/spongycastle/math/ec/ECCurve;Lorg/spongycastle/math/ec/ECFieldElement;Lorg/spongycastle/math/ec/ECFieldElement;)V
    .registers 5

    .prologue
    .line 56
    invoke-static {p1}, Lorg/spongycastle/math/ec/ECPoint;->getInitialZCoords(Lorg/spongycastle/math/ec/ECCurve;)[Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v0

    invoke-direct {p0, p1, p2, p3, v0}, Lorg/spongycastle/math/ec/ECPoint;-><init>(Lorg/spongycastle/math/ec/ECCurve;Lorg/spongycastle/math/ec/ECFieldElement;Lorg/spongycastle/math/ec/ECFieldElement;[Lorg/spongycastle/math/ec/ECFieldElement;)V

    .line 57
    return-void
.end method

.method protected constructor <init>(Lorg/spongycastle/math/ec/ECCurve;Lorg/spongycastle/math/ec/ECFieldElement;Lorg/spongycastle/math/ec/ECFieldElement;[Lorg/spongycastle/math/ec/ECFieldElement;)V
    .registers 6

    .prologue
    .line 60
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 52
    const/4 v0, 0x0

    iput-object v0, p0, Lorg/spongycastle/math/ec/ECPoint;->preCompTable:Ljava/util/Hashtable;

    .line 61
    iput-object p1, p0, Lorg/spongycastle/math/ec/ECPoint;->curve:Lorg/spongycastle/math/ec/ECCurve;

    .line 62
    iput-object p2, p0, Lorg/spongycastle/math/ec/ECPoint;->x:Lorg/spongycastle/math/ec/ECFieldElement;

    .line 63
    iput-object p3, p0, Lorg/spongycastle/math/ec/ECPoint;->y:Lorg/spongycastle/math/ec/ECFieldElement;

    .line 64
    iput-object p4, p0, Lorg/spongycastle/math/ec/ECPoint;->zs:[Lorg/spongycastle/math/ec/ECFieldElement;

    .line 65
    return-void
.end method

.method protected static getInitialZCoords(Lorg/spongycastle/math/ec/ECCurve;)[Lorg/spongycastle/math/ec/ECFieldElement;
    .registers 6

    .prologue
    const/4 v4, 0x2

    const/4 v3, 0x1

    const/4 v1, 0x0

    .line 16
    if-nez p0, :cond_1a

    move v0, v1

    .line 18
    :goto_6
    sparse-switch v0, :sswitch_data_3c

    .line 27
    sget-object v2, Lorg/spongycastle/math/ec/ECConstants;->ONE:Ljava/math/BigInteger;

    invoke-virtual {p0, v2}, Lorg/spongycastle/math/ec/ECCurve;->fromBigInteger(Ljava/math/BigInteger;)Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v2

    .line 29
    packed-switch v0, :pswitch_data_46

    .line 40
    :pswitch_12
    new-instance v0, Ljava/lang/IllegalArgumentException;

    const-string v1, "unknown coordinate system"

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

    throw v0

    .line 16
    :cond_1a
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECCurve;->getCoordinateSystem()I

    move-result v0

    goto :goto_6

    .line 22
    :sswitch_1f
    sget-object v0, Lorg/spongycastle/math/ec/ECPoint;->EMPTY_ZS:[Lorg/spongycastle/math/ec/ECFieldElement;

    .line 38
    :goto_21
    return-object v0

    .line 34
    :pswitch_22
    new-array v0, v3, [Lorg/spongycastle/math/ec/ECFieldElement;

    aput-object v2, v0, v1

    goto :goto_21

    .line 36
    :pswitch_27
    const/4 v0, 0x3

    new-array v0, v0, [Lorg/spongycastle/math/ec/ECFieldElement;

    aput-object v2, v0, v1

    aput-object v2, v0, v3

    aput-object v2, v0, v4

    goto :goto_21

    .line 38
    :pswitch_31
    new-array v0, v4, [Lorg/spongycastle/math/ec/ECFieldElement;

    aput-object v2, v0, v1

    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECCurve;->getA()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v1

    aput-object v1, v0, v3

    goto :goto_21

    .line 18
    :sswitch_data_3c
    .sparse-switch
        0x0 -> :sswitch_1f
        0x5 -> :sswitch_1f
    .end sparse-switch

    .line 29
    :pswitch_data_46
    .packed-switch 0x1
        :pswitch_22
        :pswitch_22
        :pswitch_27
        :pswitch_31
        :pswitch_12
        :pswitch_22
    .end packed-switch
.end method


# virtual methods
.method public abstract add(Lorg/spongycastle/math/ec/ECPoint;)Lorg/spongycastle/math/ec/ECPoint;
.end method

.method protected checkNormalized()V
    .registers 3

    .prologue
    .line 208
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->isNormalized()Z

    move-result v0

    if-nez v0, :cond_e

    .line 210
    new-instance v0, Ljava/lang/IllegalStateException;

    const-string v1, "point not in normal form"

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

    throw v0

    .line 212
    :cond_e
    return-void
.end method

.method protected createScaledPoint(Lorg/spongycastle/math/ec/ECFieldElement;Lorg/spongycastle/math/ec/ECFieldElement;)Lorg/spongycastle/math/ec/ECPoint;
    .registers 7

    .prologue
    .line 282
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getCurve()Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v0

    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getRawXCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v1

    invoke-virtual {v1, p1}, Lorg/spongycastle/math/ec/ECFieldElement;->multiply(Lorg/spongycastle/math/ec/ECFieldElement;)Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v1

    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getRawYCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v2

    invoke-virtual {v2, p2}, Lorg/spongycastle/math/ec/ECFieldElement;->multiply(Lorg/spongycastle/math/ec/ECFieldElement;)Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v2

    iget-boolean v3, p0, Lorg/spongycastle/math/ec/ECPoint;->withCompression:Z

    invoke-virtual {v0, v1, v2, v3}, Lorg/spongycastle/math/ec/ECCurve;->createRawPoint(Lorg/spongycastle/math/ec/ECFieldElement;Lorg/spongycastle/math/ec/ECFieldElement;Z)Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v0

    return-object v0
.end method

.method public abstract detach()Lorg/spongycastle/math/ec/ECPoint;
.end method

.method public equals(Ljava/lang/Object;)Z
    .registers 3

    .prologue
    .line 389
    if-ne p1, p0, :cond_4

    .line 391
    const/4 v0, 0x1

    .line 399
    :goto_3
    return v0

    .line 394
    :cond_4
    instance-of v0, p1, Lorg/spongycastle/math/ec/ECPoint;

    if-nez v0, :cond_a

    .line 396
    const/4 v0, 0x0

    goto :goto_3

    .line 399
    :cond_a
    check-cast p1, Lorg/spongycastle/math/ec/ECPoint;

    invoke-virtual {p0, p1}, Lorg/spongycastle/math/ec/ECPoint;->equals(Lorg/spongycastle/math/ec/ECPoint;)Z

    move-result v0

    goto :goto_3
.end method

.method public equals(Lorg/spongycastle/math/ec/ECPoint;)Z
    .registers 10

    .prologue
    const/4 v1, 0x1

    const/4 v2, 0x0

    .line 340
    if-nez p1, :cond_5

    .line 384
    :cond_4
    :goto_4
    return v2

    .line 345
    :cond_5
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getCurve()Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v4

    invoke-virtual {p1}, Lorg/spongycastle/math/ec/ECPoint;->getCurve()Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v5

    .line 346
    if-nez v4, :cond_2f

    move v3, v1

    :goto_10
    if-nez v5, :cond_31

    move v0, v1

    .line 347
    :goto_13
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->isInfinity()Z

    move-result v6

    invoke-virtual {p1}, Lorg/spongycastle/math/ec/ECPoint;->isInfinity()Z

    move-result v7

    .line 349
    if-nez v6, :cond_1f

    if-eqz v7, :cond_33

    .line 351
    :cond_1f
    if-eqz v6, :cond_4

    if-eqz v7, :cond_4

    if-nez v3, :cond_2d

    if-nez v0, :cond_2d

    invoke-virtual {v4, v5}, Lorg/spongycastle/math/ec/ECCurve;->equals(Lorg/spongycastle/math/ec/ECCurve;)Z

    move-result v0

    if-eqz v0, :cond_4

    :cond_2d
    move v2, v1

    goto :goto_4

    :cond_2f
    move v3, v2

    .line 346
    goto :goto_10

    :cond_31
    move v0, v2

    goto :goto_13

    .line 355
    :cond_33
    if-eqz v3, :cond_37

    if-nez v0, :cond_3d

    .line 359
    :cond_37
    if-eqz v3, :cond_5b

    .line 361
    invoke-virtual {p1}, Lorg/spongycastle/math/ec/ECPoint;->normalize()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object p1

    .line 384
    :cond_3d
    :goto_3d
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getXCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v0

    invoke-virtual {p1}, Lorg/spongycastle/math/ec/ECPoint;->getXCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v3

    invoke-virtual {v0, v3}, Ljava/lang/Object;->equals(Ljava/lang/Object;)Z

    move-result v0

    if-eqz v0, :cond_4

    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getYCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v0

    invoke-virtual {p1}, Lorg/spongycastle/math/ec/ECPoint;->getYCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v3

    invoke-virtual {v0, v3}, Ljava/lang/Object;->equals(Ljava/lang/Object;)Z

    move-result v0

    if-eqz v0, :cond_4

    move v2, v1

    goto :goto_4

    .line 363
    :cond_5b
    if-eqz v0, :cond_62

    .line 365
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->normalize()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object p0

    goto :goto_3d

    .line 367
    :cond_62
    invoke-virtual {v4, v5}, Lorg/spongycastle/math/ec/ECCurve;->equals(Lorg/spongycastle/math/ec/ECCurve;)Z

    move-result v0

    if-eqz v0, :cond_4

    .line 375
    const/4 v0, 0x2

    new-array v0, v0, [Lorg/spongycastle/math/ec/ECPoint;

    aput-object p0, v0, v2

    invoke-virtual {v4, p1}, Lorg/spongycastle/math/ec/ECCurve;->importPoint(Lorg/spongycastle/math/ec/ECPoint;)Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v3

    aput-object v3, v0, v1

    .line 378
    invoke-virtual {v4, v0}, Lorg/spongycastle/math/ec/ECCurve;->normalizeAll([Lorg/spongycastle/math/ec/ECPoint;)V

    .line 380
    aget-object p0, v0, v2

    .line 381
    aget-object p1, v0, v1

    goto :goto_3d
.end method

.method public getAffineXCoord()Lorg/spongycastle/math/ec/ECFieldElement;
    .registers 2

    .prologue
    .line 128
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->checkNormalized()V

    .line 129
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getXCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v0

    return-object v0
.end method

.method public getAffineYCoord()Lorg/spongycastle/math/ec/ECFieldElement;
    .registers 2

    .prologue
    .line 140
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->checkNormalized()V

    .line 141
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getYCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v0

    return-object v0
.end method

.method protected abstract getCompressionYTilde()Z
.end method

.method public getCurve()Lorg/spongycastle/math/ec/ECCurve;
    .registers 2

    .prologue
    .line 82
    iget-object v0, p0, Lorg/spongycastle/math/ec/ECPoint;->curve:Lorg/spongycastle/math/ec/ECCurve;

    return-object v0
.end method

.method protected getCurveCoordinateSystem()I
    .registers 2

    .prologue
    .line 90
    iget-object v0, p0, Lorg/spongycastle/math/ec/ECPoint;->curve:Lorg/spongycastle/math/ec/ECCurve;

    if-nez v0, :cond_6

    const/4 v0, 0x0

    :goto_5
    return v0

    :cond_6
    iget-object v0, p0, Lorg/spongycastle/math/ec/ECPoint;->curve:Lorg/spongycastle/math/ec/ECCurve;

    invoke-virtual {v0}, Lorg/spongycastle/math/ec/ECCurve;->getCoordinateSystem()I

    move-result v0

    goto :goto_5
.end method

.method public final getDetachedPoint()Lorg/spongycastle/math/ec/ECPoint;
    .registers 2

    .prologue
    .line 77
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->normalize()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v0

    invoke-virtual {v0}, Lorg/spongycastle/math/ec/ECPoint;->detach()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v0

    return-object v0
.end method

.method public getEncoded()[B
    .registers 2

    .prologue
    .line 446
    iget-boolean v0, p0, Lorg/spongycastle/math/ec/ECPoint;->withCompression:Z

    invoke-virtual {p0, v0}, Lorg/spongycastle/math/ec/ECPoint;->getEncoded(Z)[B

    move-result-object v0

    return-object v0
.end method

.method public getEncoded(Z)[B
    .registers 8

    .prologue
    const/4 v5, 0x1

    const/4 v4, 0x0

    .line 457
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->isInfinity()Z

    move-result v0

    if-eqz v0, :cond_b

    .line 459
    new-array v0, v5, [B

    .line 480
    :goto_a
    return-object v0

    .line 462
    :cond_b
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->normalize()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v0

    .line 464
    invoke-virtual {v0}, Lorg/spongycastle/math/ec/ECPoint;->getXCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v1

    invoke-virtual {v1}, Lorg/spongycastle/math/ec/ECFieldElement;->getEncoded()[B

    move-result-object v2

    .line 466
    if-eqz p1, :cond_30

    .line 468
    array-length v1, v2

    add-int/lit8 v1, v1, 0x1

    new-array v1, v1, [B

    .line 469
    invoke-virtual {v0}, Lorg/spongycastle/math/ec/ECPoint;->getCompressionYTilde()Z

    move-result v0

    if-eqz v0, :cond_2e

    const/4 v0, 0x3

    :goto_25
    int-to-byte v0, v0

    aput-byte v0, v1, v4

    .line 470
    array-length v0, v2

    invoke-static {v2, v4, v1, v5, v0}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    move-object v0, v1

    .line 471
    goto :goto_a

    .line 469
    :cond_2e
    const/4 v0, 0x2

    goto :goto_25

    .line 474
    :cond_30
    invoke-virtual {v0}, Lorg/spongycastle/math/ec/ECPoint;->getYCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v0

    invoke-virtual {v0}, Lorg/spongycastle/math/ec/ECFieldElement;->getEncoded()[B

    move-result-object v1

    .line 476
    array-length v0, v2

    array-length v3, v1

    add-int/2addr v0, v3

    add-int/lit8 v0, v0, 0x1

    new-array v0, v0, [B

    .line 477
    const/4 v3, 0x4

    aput-byte v3, v0, v4

    .line 478
    array-length v3, v2

    invoke-static {v2, v4, v0, v5, v3}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 479
    array-length v2, v2

    add-int/lit8 v2, v2, 0x1

    array-length v3, v1

    invoke-static {v1, v4, v0, v2, v3}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    goto :goto_a
.end method

.method public final getRawXCoord()Lorg/spongycastle/math/ec/ECFieldElement;
    .registers 2

    .prologue
    .line 193
    iget-object v0, p0, Lorg/spongycastle/math/ec/ECPoint;->x:Lorg/spongycastle/math/ec/ECFieldElement;

    return-object v0
.end method

.method public final getRawYCoord()Lorg/spongycastle/math/ec/ECFieldElement;
    .registers 2

    .prologue
    .line 198
    iget-object v0, p0, Lorg/spongycastle/math/ec/ECPoint;->y:Lorg/spongycastle/math/ec/ECFieldElement;

    return-object v0
.end method

.method protected final getRawZCoords()[Lorg/spongycastle/math/ec/ECFieldElement;
    .registers 2

    .prologue
    .line 203
    iget-object v0, p0, Lorg/spongycastle/math/ec/ECPoint;->zs:[Lorg/spongycastle/math/ec/ECFieldElement;

    return-object v0
.end method

.method public getX()Lorg/spongycastle/math/ec/ECFieldElement;
    .registers 2

    .prologue
    .line 103
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->normalize()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v0

    invoke-virtual {v0}, Lorg/spongycastle/math/ec/ECPoint;->getXCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v0

    return-object v0
.end method

.method public getXCoord()Lorg/spongycastle/math/ec/ECFieldElement;
    .registers 2

    .prologue
    .line 156
    iget-object v0, p0, Lorg/spongycastle/math/ec/ECPoint;->x:Lorg/spongycastle/math/ec/ECFieldElement;

    return-object v0
.end method

.method public getY()Lorg/spongycastle/math/ec/ECFieldElement;
    .registers 2

    .prologue
    .line 117
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->normalize()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v0

    invoke-virtual {v0}, Lorg/spongycastle/math/ec/ECPoint;->getYCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v0

    return-object v0
.end method

.method public getYCoord()Lorg/spongycastle/math/ec/ECFieldElement;
    .registers 2

    .prologue
    .line 171
    iget-object v0, p0, Lorg/spongycastle/math/ec/ECPoint;->y:Lorg/spongycastle/math/ec/ECFieldElement;

    return-object v0
.end method

.method public getZCoord(I)Lorg/spongycastle/math/ec/ECFieldElement;
    .registers 3

    .prologue
    .line 176
    if-ltz p1, :cond_7

    iget-object v0, p0, Lorg/spongycastle/math/ec/ECPoint;->zs:[Lorg/spongycastle/math/ec/ECFieldElement;

    array-length v0, v0

    if-lt p1, v0, :cond_9

    :cond_7
    const/4 v0, 0x0

    :goto_8
    return-object v0

    :cond_9
    iget-object v0, p0, Lorg/spongycastle/math/ec/ECPoint;->zs:[Lorg/spongycastle/math/ec/ECFieldElement;

    aget-object v0, v0, p1

    goto :goto_8
.end method

.method public getZCoords()[Lorg/spongycastle/math/ec/ECFieldElement;
    .registers 5

    .prologue
    const/4 v3, 0x0

    .line 181
    iget-object v0, p0, Lorg/spongycastle/math/ec/ECPoint;->zs:[Lorg/spongycastle/math/ec/ECFieldElement;

    array-length v1, v0

    .line 182
    if-nez v1, :cond_9

    .line 184
    sget-object v0, Lorg/spongycastle/math/ec/ECPoint;->EMPTY_ZS:[Lorg/spongycastle/math/ec/ECFieldElement;

    .line 188
    :goto_8
    return-object v0

    .line 186
    :cond_9
    new-array v0, v1, [Lorg/spongycastle/math/ec/ECFieldElement;

    .line 187
    iget-object v2, p0, Lorg/spongycastle/math/ec/ECPoint;->zs:[Lorg/spongycastle/math/ec/ECFieldElement;

    invoke-static {v2, v3, v0, v3, v1}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    goto :goto_8
.end method

.method public hashCode()I
    .registers 4

    .prologue
    .line 404
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getCurve()Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v0

    .line 405
    if-nez v0, :cond_28

    const/4 v0, 0x0

    .line 407
    :goto_7
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->isInfinity()Z

    move-result v1

    if-nez v1, :cond_27

    .line 411
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->normalize()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v1

    .line 413
    invoke-virtual {v1}, Lorg/spongycastle/math/ec/ECPoint;->getXCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v2

    invoke-virtual {v2}, Ljava/lang/Object;->hashCode()I

    move-result v2

    mul-int/lit8 v2, v2, 0x11

    xor-int/2addr v0, v2

    .line 414
    invoke-virtual {v1}, Lorg/spongycastle/math/ec/ECPoint;->getYCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v1

    invoke-virtual {v1}, Ljava/lang/Object;->hashCode()I

    move-result v1

    mul-int/lit16 v1, v1, 0x101

    xor-int/2addr v0, v1

    .line 417
    :cond_27
    return v0

    .line 405
    :cond_28
    invoke-virtual {v0}, Lorg/spongycastle/math/ec/ECCurve;->hashCode()I

    move-result v0

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

    goto :goto_7
.end method

.method public isCompressed()Z
    .registers 2

    .prologue
    .line 295
    iget-boolean v0, p0, Lorg/spongycastle/math/ec/ECPoint;->withCompression:Z

    return v0
.end method

.method public isInfinity()Z
    .registers 3

    .prologue
    const/4 v0, 0x0

    .line 287
    iget-object v1, p0, Lorg/spongycastle/math/ec/ECPoint;->x:Lorg/spongycastle/math/ec/ECFieldElement;

    if-eqz v1, :cond_18

    iget-object v1, p0, Lorg/spongycastle/math/ec/ECPoint;->y:Lorg/spongycastle/math/ec/ECFieldElement;

    if-eqz v1, :cond_18

    iget-object v1, p0, Lorg/spongycastle/math/ec/ECPoint;->zs:[Lorg/spongycastle/math/ec/ECFieldElement;

    array-length v1, v1

    if-lez v1, :cond_19

    iget-object v1, p0, Lorg/spongycastle/math/ec/ECPoint;->zs:[Lorg/spongycastle/math/ec/ECFieldElement;

    aget-object v1, v1, v0

    invoke-virtual {v1}, Lorg/spongycastle/math/ec/ECFieldElement;->isZero()Z

    move-result v1

    if-eqz v1, :cond_19

    :cond_18
    const/4 v0, 0x1

    :cond_19
    return v0
.end method

.method public isNormalized()Z
    .registers 4

    .prologue
    const/4 v0, 0x0

    .line 216
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getCurveCoordinateSystem()I

    move-result v1

    .line 218
    if-eqz v1, :cond_1a

    const/4 v2, 0x5

    if-eq v1, v2, :cond_1a

    .line 220
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->isInfinity()Z

    move-result v1

    if-nez v1, :cond_1a

    iget-object v1, p0, Lorg/spongycastle/math/ec/ECPoint;->zs:[Lorg/spongycastle/math/ec/ECFieldElement;

    aget-object v1, v1, v0

    .line 221
    invoke-virtual {v1}, Lorg/spongycastle/math/ec/ECFieldElement;->isOne()Z

    move-result v1

    if-eqz v1, :cond_1b

    :cond_1a
    const/4 v0, 0x1

    :cond_1b
    return v0
.end method

.method public isValid()Z
    .registers 4

    .prologue
    const/4 v0, 0x1

    const/4 v1, 0x0

    .line 300
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->isInfinity()Z

    move-result v2

    if-eqz v2, :cond_9

    .line 321
    :cond_8
    :goto_8
    return v0

    .line 307
    :cond_9
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getCurve()Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v2

    .line 308
    if-eqz v2, :cond_8

    .line 310
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->satisfiesCurveEquation()Z

    move-result v2

    if-nez v2, :cond_17

    move v0, v1

    .line 312
    goto :goto_8

    .line 315
    :cond_17
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->satisfiesCofactor()Z

    move-result v2

    if-nez v2, :cond_8

    move v0, v1

    .line 317
    goto :goto_8
.end method

.method public multiply(Ljava/math/BigInteger;)Lorg/spongycastle/math/ec/ECPoint;
    .registers 3

    .prologue
    .line 525
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getCurve()Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v0

    invoke-virtual {v0}, Lorg/spongycastle/math/ec/ECCurve;->getMultiplier()Lorg/spongycastle/math/ec/ECMultiplier;

    move-result-object v0

    invoke-interface {v0, p0, p1}, Lorg/spongycastle/math/ec/ECMultiplier;->multiply(Lorg/spongycastle/math/ec/ECPoint;Ljava/math/BigInteger;)Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v0

    return-object v0
.end method

.method public abstract negate()Lorg/spongycastle/math/ec/ECPoint;
.end method

.method public normalize()Lorg/spongycastle/math/ec/ECPoint;
    .registers 3

    .prologue
    .line 232
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->isInfinity()Z

    move-result v0

    if-eqz v0, :cond_7

    .line 252
    :cond_6
    :goto_6
    :sswitch_6
    return-object p0

    .line 237
    :cond_7
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getCurveCoordinateSystem()I

    move-result v0

    sparse-switch v0, :sswitch_data_22

    .line 246
    const/4 v0, 0x0

    invoke-virtual {p0, v0}, Lorg/spongycastle/math/ec/ECPoint;->getZCoord(I)Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v0

    .line 247
    invoke-virtual {v0}, Lorg/spongycastle/math/ec/ECFieldElement;->isOne()Z

    move-result v1

    if-nez v1, :cond_6

    .line 252
    invoke-virtual {v0}, Lorg/spongycastle/math/ec/ECFieldElement;->invert()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v0

    invoke-virtual {p0, v0}, Lorg/spongycastle/math/ec/ECPoint;->normalize(Lorg/spongycastle/math/ec/ECFieldElement;)Lorg/spongycastle/math/ec/ECPoint;

    move-result-object p0

    goto :goto_6

    .line 237
    :sswitch_data_22
    .sparse-switch
        0x0 -> :sswitch_6
        0x5 -> :sswitch_6
    .end sparse-switch
.end method

.method normalize(Lorg/spongycastle/math/ec/ECFieldElement;)Lorg/spongycastle/math/ec/ECPoint;
    .registers 4

    .prologue
    .line 259
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getCurveCoordinateSystem()I

    move-result v0

    packed-switch v0, :pswitch_data_22

    .line 275
    :pswitch_7
    new-instance v0, Ljava/lang/IllegalStateException;

    const-string v1, "not a projective coordinate system"

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

    throw v0

    .line 264
    :pswitch_f
    invoke-virtual {p0, p1, p1}, Lorg/spongycastle/math/ec/ECPoint;->createScaledPoint(Lorg/spongycastle/math/ec/ECFieldElement;Lorg/spongycastle/math/ec/ECFieldElement;)Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v0

    .line 271
    :goto_13
    return-object v0

    .line 270
    :pswitch_14
    invoke-virtual {p1}, Lorg/spongycastle/math/ec/ECFieldElement;->square()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v0

    invoke-virtual {v0, p1}, Lorg/spongycastle/math/ec/ECFieldElement;->multiply(Lorg/spongycastle/math/ec/ECFieldElement;)Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v1

    .line 271
    invoke-virtual {p0, v0, v1}, Lorg/spongycastle/math/ec/ECPoint;->createScaledPoint(Lorg/spongycastle/math/ec/ECFieldElement;Lorg/spongycastle/math/ec/ECFieldElement;)Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v0

    goto :goto_13

    .line 259
    nop

    :pswitch_data_22
    .packed-switch 0x1
        :pswitch_f
        :pswitch_14
        :pswitch_14
        :pswitch_14
        :pswitch_7
        :pswitch_f
    .end packed-switch
.end method

.method protected satisfiesCofactor()Z
    .registers 3

    .prologue
    .line 69
    iget-object v0, p0, Lorg/spongycastle/math/ec/ECPoint;->curve:Lorg/spongycastle/math/ec/ECCurve;

    invoke-virtual {v0}, Lorg/spongycastle/math/ec/ECCurve;->getCofactor()Ljava/math/BigInteger;

    move-result-object v0

    .line 70
    if-eqz v0, :cond_1a

    sget-object v1, Lorg/spongycastle/math/ec/ECConstants;->ONE:Ljava/math/BigInteger;

    invoke-virtual {v0, v1}, Ljava/math/BigInteger;->equals(Ljava/lang/Object;)Z

    move-result v1

    if-nez v1, :cond_1a

    invoke-static {p0, v0}, Lorg/spongycastle/math/ec/ECAlgorithms;->referenceMultiply(Lorg/spongycastle/math/ec/ECPoint;Ljava/math/BigInteger;)Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v0

    invoke-virtual {v0}, Lorg/spongycastle/math/ec/ECPoint;->isInfinity()Z

    move-result v0

    if-nez v0, :cond_1c

    :cond_1a
    const/4 v0, 0x1

    :goto_1b
    return v0

    :cond_1c
    const/4 v0, 0x0

    goto :goto_1b
.end method

.method protected abstract satisfiesCurveEquation()Z
.end method

.method public scaleX(Lorg/spongycastle/math/ec/ECFieldElement;)Lorg/spongycastle/math/ec/ECPoint;
    .registers 7

    .prologue
    .line 326
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->isInfinity()Z

    move-result v0

    if-eqz v0, :cond_7

    .line 328
    :goto_6
    return-object p0

    :cond_7
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getCurve()Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v0

    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getRawXCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v1

    invoke-virtual {v1, p1}, Lorg/spongycastle/math/ec/ECFieldElement;->multiply(Lorg/spongycastle/math/ec/ECFieldElement;)Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v1

    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getRawYCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v2

    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getRawZCoords()[Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v3

    iget-boolean v4, p0, Lorg/spongycastle/math/ec/ECPoint;->withCompression:Z

    invoke-virtual {v0, v1, v2, v3, v4}, Lorg/spongycastle/math/ec/ECCurve;->createRawPoint(Lorg/spongycastle/math/ec/ECFieldElement;Lorg/spongycastle/math/ec/ECFieldElement;[Lorg/spongycastle/math/ec/ECFieldElement;Z)Lorg/spongycastle/math/ec/ECPoint;

    move-result-object p0

    goto :goto_6
.end method

.method public scaleY(Lorg/spongycastle/math/ec/ECFieldElement;)Lorg/spongycastle/math/ec/ECPoint;
    .registers 7

    .prologue
    .line 333
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->isInfinity()Z

    move-result v0

    if-eqz v0, :cond_7

    .line 335
    :goto_6
    return-object p0

    :cond_7
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getCurve()Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v0

    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getRawXCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v1

    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getRawYCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v2

    invoke-virtual {v2, p1}, Lorg/spongycastle/math/ec/ECFieldElement;->multiply(Lorg/spongycastle/math/ec/ECFieldElement;)Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v2

    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getRawZCoords()[Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v3

    iget-boolean v4, p0, Lorg/spongycastle/math/ec/ECPoint;->withCompression:Z

    invoke-virtual {v0, v1, v2, v3, v4}, Lorg/spongycastle/math/ec/ECCurve;->createRawPoint(Lorg/spongycastle/math/ec/ECFieldElement;Lorg/spongycastle/math/ec/ECFieldElement;[Lorg/spongycastle/math/ec/ECFieldElement;Z)Lorg/spongycastle/math/ec/ECPoint;

    move-result-object p0

    goto :goto_6
.end method

.method public abstract subtract(Lorg/spongycastle/math/ec/ECPoint;)Lorg/spongycastle/math/ec/ECPoint;
.end method

.method public threeTimes()Lorg/spongycastle/math/ec/ECPoint;
    .registers 2

    .prologue
    .line 515
    invoke-virtual {p0, p0}, Lorg/spongycastle/math/ec/ECPoint;->twicePlus(Lorg/spongycastle/math/ec/ECPoint;)Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v0

    return-object v0
.end method

.method public timesPow2(I)Lorg/spongycastle/math/ec/ECPoint;
    .registers 4

    .prologue
    .line 493
    if-gez p1, :cond_a

    .line 495
    new-instance v0, Ljava/lang/IllegalArgumentException;

    const-string v1, "\'e\' cannot be negative"

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

    throw v0

    .line 499
    :cond_a
    :goto_a
    add-int/lit8 p1, p1, -0x1

    if-ltz p1, :cond_13

    .line 501
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->twice()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object p0

    goto :goto_a

    .line 503
    :cond_13
    return-object p0
.end method

.method public toString()Ljava/lang/String;
    .registers 5

    .prologue
    const/16 v3, 0x2c

    .line 422
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->isInfinity()Z

    move-result v0

    if-eqz v0, :cond_b

    .line 424
    const-string v0, "INF"

    .line 438
    :goto_a
    return-object v0

    .line 427
    :cond_b
    new-instance v1, Ljava/lang/StringBuffer;

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

    .line 428
    const/16 v0, 0x28

    invoke-virtual {v1, v0}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    .line 429
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getRawXCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v0

    invoke-virtual {v1, v0}, Ljava/lang/StringBuffer;->append(Ljava/lang/Object;)Ljava/lang/StringBuffer;

    .line 430
    invoke-virtual {v1, v3}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    .line 431
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->getRawYCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v0

    invoke-virtual {v1, v0}, Ljava/lang/StringBuffer;->append(Ljava/lang/Object;)Ljava/lang/StringBuffer;

    .line 432
    const/4 v0, 0x0

    :goto_27
    iget-object v2, p0, Lorg/spongycastle/math/ec/ECPoint;->zs:[Lorg/spongycastle/math/ec/ECFieldElement;

    array-length v2, v2

    if-ge v0, v2, :cond_39

    .line 434
    invoke-virtual {v1, v3}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    .line 435
    iget-object v2, p0, Lorg/spongycastle/math/ec/ECPoint;->zs:[Lorg/spongycastle/math/ec/ECFieldElement;

    aget-object v2, v2, v0

    invoke-virtual {v1, v2}, Ljava/lang/StringBuffer;->append(Ljava/lang/Object;)Ljava/lang/StringBuffer;

    .line 432
    add-int/lit8 v0, v0, 0x1

    goto :goto_27

    .line 437
    :cond_39
    const/16 v0, 0x29

    invoke-virtual {v1, v0}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    .line 438
    invoke-virtual {v1}, Ljava/lang/StringBuffer;->toString()Ljava/lang/String;

    move-result-object v0

    goto :goto_a
.end method

.method public abstract twice()Lorg/spongycastle/math/ec/ECPoint;
.end method

.method public twicePlus(Lorg/spongycastle/math/ec/ECPoint;)Lorg/spongycastle/math/ec/ECPoint;
    .registers 3

    .prologue
    .line 510
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECPoint;->twice()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v0

    invoke-virtual {v0, p1}, Lorg/spongycastle/math/ec/ECPoint;->add(Lorg/spongycastle/math/ec/ECPoint;)Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v0

    return-object v0
.end method