X9Curve.smali
.class public Lorg/spongycastle/asn1/x9/X9Curve;
.super Lorg/spongycastle/asn1/ASN1Object;
.source "X9Curve.java"
# interfaces
.implements Lorg/spongycastle/asn1/x9/X9ObjectIdentifiers;
# instance fields
.field private curve:Lorg/spongycastle/math/ec/ECCurve;
.field private fieldIdentifier:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
.field private seed:[B
# direct methods
.method public constructor <init>(Lorg/spongycastle/asn1/x9/X9FieldID;Lorg/spongycastle/asn1/ASN1Sequence;)V
.registers 15
.prologue
const/4 v11, 0x2
const/4 v6, 0x1
const/4 v5, 0x0
.line 49
invoke-direct {p0}, Lorg/spongycastle/asn1/ASN1Object;-><init>()V
.line 27
const/4 v0, 0x0
iput-object v0, p0, Lorg/spongycastle/asn1/x9/X9Curve;->fieldIdentifier:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
.line 52
invoke-virtual {p1}, Lorg/spongycastle/asn1/x9/X9FieldID;->getIdentifier()Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
move-result-object v0
iput-object v0, p0, Lorg/spongycastle/asn1/x9/X9Curve;->fieldIdentifier:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
.line 53
iget-object v0, p0, Lorg/spongycastle/asn1/x9/X9Curve;->fieldIdentifier:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
sget-object v1, Lorg/spongycastle/asn1/x9/X9Curve;->prime_field:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
invoke-virtual {v0, v1}, Lorg/spongycastle/asn1/ASN1ObjectIdentifier;->equals(Ljava/lang/Object;)Z
move-result v0
if-eqz v0, :cond_64
.line 55
invoke-virtual {p1}, Lorg/spongycastle/asn1/x9/X9FieldID;->getParameters()Lorg/spongycastle/asn1/ASN1Primitive;
move-result-object v0
check-cast v0, Lorg/spongycastle/asn1/ASN1Integer;
invoke-virtual {v0}, Lorg/spongycastle/asn1/ASN1Integer;->getValue()Ljava/math/BigInteger;
move-result-object v1
.line 56
new-instance v2, Lorg/spongycastle/asn1/x9/X9FieldElement;
invoke-virtual {p2, v5}, Lorg/spongycastle/asn1/ASN1Sequence;->getObjectAt(I)Lorg/spongycastle/asn1/ASN1Encodable;
move-result-object v0
check-cast v0, Lorg/spongycastle/asn1/ASN1OctetString;
invoke-direct {v2, v1, v0}, Lorg/spongycastle/asn1/x9/X9FieldElement;-><init>(Ljava/math/BigInteger;Lorg/spongycastle/asn1/ASN1OctetString;)V
.line 57
new-instance v3, Lorg/spongycastle/asn1/x9/X9FieldElement;
invoke-virtual {p2, v6}, Lorg/spongycastle/asn1/ASN1Sequence;->getObjectAt(I)Lorg/spongycastle/asn1/ASN1Encodable;
move-result-object v0
check-cast v0, Lorg/spongycastle/asn1/ASN1OctetString;
invoke-direct {v3, v1, v0}, Lorg/spongycastle/asn1/x9/X9FieldElement;-><init>(Ljava/math/BigInteger;Lorg/spongycastle/asn1/ASN1OctetString;)V
.line 58
new-instance v0, Lorg/spongycastle/math/ec/ECCurve$Fp;
invoke-virtual {v2}, Lorg/spongycastle/asn1/x9/X9FieldElement;->getValue()Lorg/spongycastle/math/ec/ECFieldElement;
move-result-object v2
invoke-virtual {v2}, Lorg/spongycastle/math/ec/ECFieldElement;->toBigInteger()Ljava/math/BigInteger;
move-result-object v2
invoke-virtual {v3}, Lorg/spongycastle/asn1/x9/X9FieldElement;->getValue()Lorg/spongycastle/math/ec/ECFieldElement;
move-result-object v3
invoke-virtual {v3}, Lorg/spongycastle/math/ec/ECFieldElement;->toBigInteger()Ljava/math/BigInteger;
move-result-object v3
invoke-direct {v0, v1, v2, v3}, Lorg/spongycastle/math/ec/ECCurve$Fp;-><init>(Ljava/math/BigInteger;Ljava/math/BigInteger;Ljava/math/BigInteger;)V
iput-object v0, p0, Lorg/spongycastle/asn1/x9/X9Curve;->curve:Lorg/spongycastle/math/ec/ECCurve;
.line 99
:goto_50
invoke-virtual {p2}, Lorg/spongycastle/asn1/ASN1Sequence;->size()I
move-result v0
const/4 v1, 0x3
if-ne v0, v1, :cond_63
.line 101
invoke-virtual {p2, v11}, Lorg/spongycastle/asn1/ASN1Sequence;->getObjectAt(I)Lorg/spongycastle/asn1/ASN1Encodable;
move-result-object v0
check-cast v0, Lorg/spongycastle/asn1/DERBitString;
invoke-virtual {v0}, Lorg/spongycastle/asn1/DERBitString;->getBytes()[B
move-result-object v0
iput-object v0, p0, Lorg/spongycastle/asn1/x9/X9Curve;->seed:[B
.line 103
:cond_63
return-void
.line 60
:cond_64
iget-object v0, p0, Lorg/spongycastle/asn1/x9/X9Curve;->fieldIdentifier:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
sget-object v1, Lorg/spongycastle/asn1/x9/X9Curve;->characteristic_two_field:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
invoke-virtual {v0, v1}, Lorg/spongycastle/asn1/ASN1ObjectIdentifier;->equals(Ljava/lang/Object;)Z
move-result v0
if-eqz v0, :cond_122
.line 63
invoke-virtual {p1}, Lorg/spongycastle/asn1/x9/X9FieldID;->getParameters()Lorg/spongycastle/asn1/ASN1Primitive;
move-result-object v0
invoke-static {v0}, Lorg/spongycastle/asn1/ASN1Sequence;->getInstance(Ljava/lang/Object;)Lorg/spongycastle/asn1/ASN1Sequence;
move-result-object v2
.line 64
invoke-virtual {v2, v5}, Lorg/spongycastle/asn1/ASN1Sequence;->getObjectAt(I)Lorg/spongycastle/asn1/ASN1Encodable;
move-result-object v0
check-cast v0, Lorg/spongycastle/asn1/ASN1Integer;
invoke-virtual {v0}, Lorg/spongycastle/asn1/ASN1Integer;->getValue()Ljava/math/BigInteger;
move-result-object v0
.line 65
invoke-virtual {v0}, Ljava/math/BigInteger;->intValue()I
move-result v1
.line 67
invoke-virtual {v2, v6}, Lorg/spongycastle/asn1/ASN1Sequence;->getObjectAt(I)Lorg/spongycastle/asn1/ASN1Encodable;
move-result-object v0
check-cast v0, Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
.line 73
sget-object v3, Lorg/spongycastle/asn1/x9/X9Curve;->tpBasis:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
invoke-virtual {v0, v3}, Lorg/spongycastle/asn1/ASN1ObjectIdentifier;->equals(Ljava/lang/Object;)Z
move-result v3
if-eqz v3, :cond_d9
.line 76
invoke-virtual {v2, v11}, Lorg/spongycastle/asn1/ASN1Sequence;->getObjectAt(I)Lorg/spongycastle/asn1/ASN1Encodable;
move-result-object v0
invoke-static {v0}, Lorg/spongycastle/asn1/ASN1Integer;->getInstance(Ljava/lang/Object;)Lorg/spongycastle/asn1/ASN1Integer;
move-result-object v0
invoke-virtual {v0}, Lorg/spongycastle/asn1/ASN1Integer;->getValue()Ljava/math/BigInteger;
move-result-object v0
invoke-virtual {v0}, Ljava/math/BigInteger;->intValue()I
move-result v2
move v4, v5
move v3, v5
.line 90
:goto_a4
new-instance v0, Lorg/spongycastle/asn1/x9/X9FieldElement;
invoke-virtual {p2, v5}, Lorg/spongycastle/asn1/ASN1Sequence;->getObjectAt(I)Lorg/spongycastle/asn1/ASN1Encodable;
move-result-object v5
check-cast v5, Lorg/spongycastle/asn1/ASN1OctetString;
invoke-direct/range {v0 .. v5}, Lorg/spongycastle/asn1/x9/X9FieldElement;-><init>(IIIILorg/spongycastle/asn1/ASN1OctetString;)V
.line 91
new-instance v5, Lorg/spongycastle/asn1/x9/X9FieldElement;
invoke-virtual {p2, v6}, Lorg/spongycastle/asn1/ASN1Sequence;->getObjectAt(I)Lorg/spongycastle/asn1/ASN1Encodable;
move-result-object v10
check-cast v10, Lorg/spongycastle/asn1/ASN1OctetString;
move v6, v1
move v7, v2
move v8, v3
move v9, v4
invoke-direct/range {v5 .. v10}, Lorg/spongycastle/asn1/x9/X9FieldElement;-><init>(IIIILorg/spongycastle/asn1/ASN1OctetString;)V
.line 92
new-instance v7, Lorg/spongycastle/math/ec/ECCurve$F2m;
invoke-virtual {v0}, Lorg/spongycastle/asn1/x9/X9FieldElement;->getValue()Lorg/spongycastle/math/ec/ECFieldElement;
move-result-object v0
invoke-virtual {v0}, Lorg/spongycastle/math/ec/ECFieldElement;->toBigInteger()Ljava/math/BigInteger;
move-result-object v8
invoke-virtual {v5}, Lorg/spongycastle/asn1/x9/X9FieldElement;->getValue()Lorg/spongycastle/math/ec/ECFieldElement;
move-result-object v0
invoke-virtual {v0}, Lorg/spongycastle/math/ec/ECFieldElement;->toBigInteger()Ljava/math/BigInteger;
move-result-object v6
move-object v0, v7
move-object v5, v8
invoke-direct/range {v0 .. v6}, Lorg/spongycastle/math/ec/ECCurve$F2m;-><init>(IIIILjava/math/BigInteger;Ljava/math/BigInteger;)V
iput-object v7, p0, Lorg/spongycastle/asn1/x9/X9Curve;->curve:Lorg/spongycastle/math/ec/ECCurve;
goto/16 :goto_50
.line 78
:cond_d9
sget-object v3, Lorg/spongycastle/asn1/x9/X9Curve;->ppBasis:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
invoke-virtual {v0, v3}, Lorg/spongycastle/asn1/ASN1ObjectIdentifier;->equals(Ljava/lang/Object;)Z
move-result v0
if-eqz v0, :cond_11a
.line 81
invoke-virtual {v2, v11}, Lorg/spongycastle/asn1/ASN1Sequence;->getObjectAt(I)Lorg/spongycastle/asn1/ASN1Encodable;
move-result-object v0
invoke-static {v0}, Lorg/spongycastle/asn1/ASN1Sequence;->getInstance(Ljava/lang/Object;)Lorg/spongycastle/asn1/ASN1Sequence;
move-result-object v0
.line 82
invoke-virtual {v0, v5}, Lorg/spongycastle/asn1/ASN1Sequence;->getObjectAt(I)Lorg/spongycastle/asn1/ASN1Encodable;
move-result-object v2
invoke-static {v2}, Lorg/spongycastle/asn1/ASN1Integer;->getInstance(Ljava/lang/Object;)Lorg/spongycastle/asn1/ASN1Integer;
move-result-object v2
invoke-virtual {v2}, Lorg/spongycastle/asn1/ASN1Integer;->getValue()Ljava/math/BigInteger;
move-result-object v2
invoke-virtual {v2}, Ljava/math/BigInteger;->intValue()I
move-result v2
.line 83
invoke-virtual {v0, v6}, Lorg/spongycastle/asn1/ASN1Sequence;->getObjectAt(I)Lorg/spongycastle/asn1/ASN1Encodable;
move-result-object v3
invoke-static {v3}, Lorg/spongycastle/asn1/ASN1Integer;->getInstance(Ljava/lang/Object;)Lorg/spongycastle/asn1/ASN1Integer;
move-result-object v3
invoke-virtual {v3}, Lorg/spongycastle/asn1/ASN1Integer;->getValue()Ljava/math/BigInteger;
move-result-object v3
invoke-virtual {v3}, Ljava/math/BigInteger;->intValue()I
move-result v3
.line 84
invoke-virtual {v0, v11}, Lorg/spongycastle/asn1/ASN1Sequence;->getObjectAt(I)Lorg/spongycastle/asn1/ASN1Encodable;
move-result-object v0
invoke-static {v0}, Lorg/spongycastle/asn1/ASN1Integer;->getInstance(Ljava/lang/Object;)Lorg/spongycastle/asn1/ASN1Integer;
move-result-object v0
invoke-virtual {v0}, Lorg/spongycastle/asn1/ASN1Integer;->getValue()Ljava/math/BigInteger;
move-result-object v0
invoke-virtual {v0}, Ljava/math/BigInteger;->intValue()I
move-result v4
goto :goto_a4
.line 88
:cond_11a
new-instance v0, Ljava/lang/IllegalArgumentException;
const-string v1, "This type of EC basis is not implemented"
invoke-direct {v0, v1}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V
throw v0
.line 96
:cond_122
new-instance v0, Ljava/lang/IllegalArgumentException;
const-string v1, "This type of ECCurve is not implemented"
invoke-direct {v0, v1}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V
throw v0
.end method
.method public constructor <init>(Lorg/spongycastle/math/ec/ECCurve;)V
.registers 3
.prologue
const/4 v0, 0x0
.line 31
invoke-direct {p0}, Lorg/spongycastle/asn1/ASN1Object;-><init>()V
.line 27
iput-object v0, p0, Lorg/spongycastle/asn1/x9/X9Curve;->fieldIdentifier:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
.line 32
iput-object p1, p0, Lorg/spongycastle/asn1/x9/X9Curve;->curve:Lorg/spongycastle/math/ec/ECCurve;
.line 33
iput-object v0, p0, Lorg/spongycastle/asn1/x9/X9Curve;->seed:[B
.line 34
invoke-direct {p0}, Lorg/spongycastle/asn1/x9/X9Curve;->setFieldIdentifier()V
.line 35
return-void
.end method
.method public constructor <init>(Lorg/spongycastle/math/ec/ECCurve;[B)V
.registers 4
.prologue
.line 40
invoke-direct {p0}, Lorg/spongycastle/asn1/ASN1Object;-><init>()V
.line 27
const/4 v0, 0x0
iput-object v0, p0, Lorg/spongycastle/asn1/x9/X9Curve;->fieldIdentifier:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
.line 41
iput-object p1, p0, Lorg/spongycastle/asn1/x9/X9Curve;->curve:Lorg/spongycastle/math/ec/ECCurve;
.line 42
iput-object p2, p0, Lorg/spongycastle/asn1/x9/X9Curve;->seed:[B
.line 43
invoke-direct {p0}, Lorg/spongycastle/asn1/x9/X9Curve;->setFieldIdentifier()V
.line 44
return-void
.end method
.method private setFieldIdentifier()V
.registers 3
.prologue
.line 107
iget-object v0, p0, Lorg/spongycastle/asn1/x9/X9Curve;->curve:Lorg/spongycastle/math/ec/ECCurve;
invoke-static {v0}, Lorg/spongycastle/math/ec/ECAlgorithms;->isFpCurve(Lorg/spongycastle/math/ec/ECCurve;)Z
move-result v0
if-eqz v0, :cond_d
.line 109
sget-object v0, Lorg/spongycastle/asn1/x9/X9Curve;->prime_field:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
iput-object v0, p0, Lorg/spongycastle/asn1/x9/X9Curve;->fieldIdentifier:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
.line 113
:goto_c
return-void
.line 111
:cond_d
iget-object v0, p0, Lorg/spongycastle/asn1/x9/X9Curve;->curve:Lorg/spongycastle/math/ec/ECCurve;
invoke-static {v0}, Lorg/spongycastle/math/ec/ECAlgorithms;->isF2mCurve(Lorg/spongycastle/math/ec/ECCurve;)Z
move-result v0
if-eqz v0, :cond_1a
.line 113
sget-object v0, Lorg/spongycastle/asn1/x9/X9Curve;->characteristic_two_field:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
iput-object v0, p0, Lorg/spongycastle/asn1/x9/X9Curve;->fieldIdentifier:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
goto :goto_c
.line 117
:cond_1a
new-instance v0, Ljava/lang/IllegalArgumentException;
const-string v1, "This type of ECCurve is not implemented"
invoke-direct {v0, v1}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V
throw v0
.end method
# virtual methods
.method public getCurve()Lorg/spongycastle/math/ec/ECCurve;
.registers 2
.prologue
.line 123
iget-object v0, p0, Lorg/spongycastle/asn1/x9/X9Curve;->curve:Lorg/spongycastle/math/ec/ECCurve;
return-object v0
.end method
.method public getSeed()[B
.registers 2
.prologue
.line 128
iget-object v0, p0, Lorg/spongycastle/asn1/x9/X9Curve;->seed:[B
return-object v0
.end method
.method public toASN1Primitive()Lorg/spongycastle/asn1/ASN1Primitive;
.registers 4
.prologue
.line 143
new-instance v0, Lorg/spongycastle/asn1/ASN1EncodableVector;
invoke-direct {v0}, Lorg/spongycastle/asn1/ASN1EncodableVector;-><init>()V
.line 145
iget-object v1, p0, Lorg/spongycastle/asn1/x9/X9Curve;->fieldIdentifier:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
sget-object v2, Lorg/spongycastle/asn1/x9/X9Curve;->prime_field:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
invoke-virtual {v1, v2}, Lorg/spongycastle/asn1/ASN1ObjectIdentifier;->equals(Ljava/lang/Object;)Z
move-result v1
if-eqz v1, :cond_47
.line 147
new-instance v1, Lorg/spongycastle/asn1/x9/X9FieldElement;
iget-object v2, p0, Lorg/spongycastle/asn1/x9/X9Curve;->curve:Lorg/spongycastle/math/ec/ECCurve;
invoke-virtual {v2}, Lorg/spongycastle/math/ec/ECCurve;->getA()Lorg/spongycastle/math/ec/ECFieldElement;
move-result-object v2
invoke-direct {v1, v2}, Lorg/spongycastle/asn1/x9/X9FieldElement;-><init>(Lorg/spongycastle/math/ec/ECFieldElement;)V
invoke-virtual {v1}, Lorg/spongycastle/asn1/x9/X9FieldElement;->toASN1Primitive()Lorg/spongycastle/asn1/ASN1Primitive;
move-result-object v1
invoke-virtual {v0, v1}, Lorg/spongycastle/asn1/ASN1EncodableVector;->add(Lorg/spongycastle/asn1/ASN1Encodable;)V
.line 148
new-instance v1, Lorg/spongycastle/asn1/x9/X9FieldElement;
iget-object v2, p0, Lorg/spongycastle/asn1/x9/X9Curve;->curve:Lorg/spongycastle/math/ec/ECCurve;
invoke-virtual {v2}, Lorg/spongycastle/math/ec/ECCurve;->getB()Lorg/spongycastle/math/ec/ECFieldElement;
move-result-object v2
invoke-direct {v1, v2}, Lorg/spongycastle/asn1/x9/X9FieldElement;-><init>(Lorg/spongycastle/math/ec/ECFieldElement;)V
invoke-virtual {v1}, Lorg/spongycastle/asn1/x9/X9FieldElement;->toASN1Primitive()Lorg/spongycastle/asn1/ASN1Primitive;
move-result-object v1
invoke-virtual {v0, v1}, Lorg/spongycastle/asn1/ASN1EncodableVector;->add(Lorg/spongycastle/asn1/ASN1Encodable;)V
.line 156
:cond_33
:goto_33
iget-object v1, p0, Lorg/spongycastle/asn1/x9/X9Curve;->seed:[B
if-eqz v1, :cond_41
.line 158
new-instance v1, Lorg/spongycastle/asn1/DERBitString;
iget-object v2, p0, Lorg/spongycastle/asn1/x9/X9Curve;->seed:[B
invoke-direct {v1, v2}, Lorg/spongycastle/asn1/DERBitString;-><init>([B)V
invoke-virtual {v0, v1}, Lorg/spongycastle/asn1/ASN1EncodableVector;->add(Lorg/spongycastle/asn1/ASN1Encodable;)V
.line 161
:cond_41
new-instance v1, Lorg/spongycastle/asn1/DERSequence;
invoke-direct {v1, v0}, Lorg/spongycastle/asn1/DERSequence;-><init>(Lorg/spongycastle/asn1/ASN1EncodableVector;)V
return-object v1
.line 150
:cond_47
iget-object v1, p0, Lorg/spongycastle/asn1/x9/X9Curve;->fieldIdentifier:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
sget-object v2, Lorg/spongycastle/asn1/x9/X9Curve;->characteristic_two_field:Lorg/spongycastle/asn1/ASN1ObjectIdentifier;
invoke-virtual {v1, v2}, Lorg/spongycastle/asn1/ASN1ObjectIdentifier;->equals(Ljava/lang/Object;)Z
move-result v1
if-eqz v1, :cond_33
.line 152
new-instance v1, Lorg/spongycastle/asn1/x9/X9FieldElement;
iget-object v2, p0, Lorg/spongycastle/asn1/x9/X9Curve;->curve:Lorg/spongycastle/math/ec/ECCurve;
invoke-virtual {v2}, Lorg/spongycastle/math/ec/ECCurve;->getA()Lorg/spongycastle/math/ec/ECFieldElement;
move-result-object v2
invoke-direct {v1, v2}, Lorg/spongycastle/asn1/x9/X9FieldElement;-><init>(Lorg/spongycastle/math/ec/ECFieldElement;)V
invoke-virtual {v1}, Lorg/spongycastle/asn1/x9/X9FieldElement;->toASN1Primitive()Lorg/spongycastle/asn1/ASN1Primitive;
move-result-object v1
invoke-virtual {v0, v1}, Lorg/spongycastle/asn1/ASN1EncodableVector;->add(Lorg/spongycastle/asn1/ASN1Encodable;)V
.line 153
new-instance v1, Lorg/spongycastle/asn1/x9/X9FieldElement;
iget-object v2, p0, Lorg/spongycastle/asn1/x9/X9Curve;->curve:Lorg/spongycastle/math/ec/ECCurve;
invoke-virtual {v2}, Lorg/spongycastle/math/ec/ECCurve;->getB()Lorg/spongycastle/math/ec/ECFieldElement;
move-result-object v2
invoke-direct {v1, v2}, Lorg/spongycastle/asn1/x9/X9FieldElement;-><init>(Lorg/spongycastle/math/ec/ECFieldElement;)V
invoke-virtual {v1}, Lorg/spongycastle/asn1/x9/X9FieldElement;->toASN1Primitive()Lorg/spongycastle/asn1/ASN1Primitive;
move-result-object v1
invoke-virtual {v0, v1}, Lorg/spongycastle/asn1/ASN1EncodableVector;->add(Lorg/spongycastle/asn1/ASN1Encodable;)V
goto :goto_33
.end method