EC5Util.smali

.class public Lorg/spongycastle/jcajce/provider/asymmetric/util/EC5Util;
.super Ljava/lang/Object;
.source "EC5Util.java"


# static fields
.field private static customCurves:Ljava/util/Map;


# direct methods
.method static constructor <clinit>()V
    .registers 4

    .prologue
    .line 31
    new-instance v0, Ljava/util/HashMap;

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

    sput-object v0, Lorg/spongycastle/jcajce/provider/asymmetric/util/EC5Util;->customCurves:Ljava/util/Map;

    .line 35
    invoke-static {}, Lorg/spongycastle/crypto/ec/CustomNamedCurves;->getNames()Ljava/util/Enumeration;

    move-result-object v1

    .line 36
    :cond_b
    :goto_b
    invoke-interface {v1}, Ljava/util/Enumeration;->hasMoreElements()Z

    move-result v0

    if-eqz v0, :cond_2f

    .line 38
    invoke-interface {v1}, Ljava/util/Enumeration;->nextElement()Ljava/lang/Object;

    move-result-object v0

    check-cast v0, Ljava/lang/String;

    .line 40
    invoke-static {v0}, Lorg/spongycastle/asn1/x9/ECNamedCurveTable;->getByName(Ljava/lang/String;)Lorg/spongycastle/asn1/x9/X9ECParameters;

    move-result-object v2

    .line 41
    if-eqz v2, :cond_b

    .line 43
    sget-object v3, Lorg/spongycastle/jcajce/provider/asymmetric/util/EC5Util;->customCurves:Ljava/util/Map;

    invoke-virtual {v2}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getCurve()Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v2

    invoke-static {v0}, Lorg/spongycastle/crypto/ec/CustomNamedCurves;->getByName(Ljava/lang/String;)Lorg/spongycastle/asn1/x9/X9ECParameters;

    move-result-object v0

    invoke-virtual {v0}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getCurve()Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v0

    invoke-interface {v3, v2, v0}, Ljava/util/Map;->put(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;

    goto :goto_b

    .line 46
    :cond_2f
    return-void
.end method

.method public constructor <init>()V
    .registers 1

    .prologue
    .line 29
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    return-void
.end method

.method public static convertCurve(Lorg/spongycastle/math/ec/ECCurve;[B)Ljava/security/spec/EllipticCurve;
    .registers 7

    .prologue
    .line 147
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECCurve;->getField()Lorg/spongycastle/math/field/FiniteField;

    move-result-object v0

    invoke-static {v0}, Lorg/spongycastle/jcajce/provider/asymmetric/util/EC5Util;->convertField(Lorg/spongycastle/math/field/FiniteField;)Ljava/security/spec/ECField;

    move-result-object v0

    .line 148
    invoke-virtual {p0}, Lorg/spongycastle/math/ec/ECCurve;->getA()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v1

    invoke-virtual {v1}, Lorg/spongycastle/math/ec/ECFieldElement;->toBigInteger()Ljava/math/BigInteger;

    move-result-object v1

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

    .line 152
    new-instance v3, Ljava/security/spec/EllipticCurve;

    const/4 v4, 0x0

    invoke-direct {v3, v0, v1, v2, v4}, Ljava/security/spec/EllipticCurve;-><init>(Ljava/security/spec/ECField;Ljava/math/BigInteger;Ljava/math/BigInteger;[B)V

    return-object v3
.end method

.method public static convertCurve(Ljava/security/spec/EllipticCurve;)Lorg/spongycastle/math/ec/ECCurve;
    .registers 9

    .prologue
    .line 158
    invoke-virtual {p0}, Ljava/security/spec/EllipticCurve;->getField()Ljava/security/spec/ECField;

    move-result-object v0

    .line 159
    invoke-virtual {p0}, Ljava/security/spec/EllipticCurve;->getA()Ljava/math/BigInteger;

    move-result-object v5

    .line 160
    invoke-virtual {p0}, Ljava/security/spec/EllipticCurve;->getB()Ljava/math/BigInteger;

    move-result-object v6

    .line 162
    instance-of v1, v0, Ljava/security/spec/ECFieldFp;

    if-eqz v1, :cond_2e

    .line 164
    new-instance v1, Lorg/spongycastle/math/ec/ECCurve$Fp;

    check-cast v0, Ljava/security/spec/ECFieldFp;

    invoke-virtual {v0}, Ljava/security/spec/ECFieldFp;->getP()Ljava/math/BigInteger;

    move-result-object v0

    invoke-direct {v1, v0, v5, v6}, Lorg/spongycastle/math/ec/ECCurve$Fp;-><init>(Ljava/math/BigInteger;Ljava/math/BigInteger;Ljava/math/BigInteger;)V

    .line 166
    sget-object v0, Lorg/spongycastle/jcajce/provider/asymmetric/util/EC5Util;->customCurves:Ljava/util/Map;

    invoke-interface {v0, v1}, Ljava/util/Map;->containsKey(Ljava/lang/Object;)Z

    move-result v0

    if-eqz v0, :cond_2c

    .line 168
    sget-object v0, Lorg/spongycastle/jcajce/provider/asymmetric/util/EC5Util;->customCurves:Ljava/util/Map;

    invoke-interface {v0, v1}, Ljava/util/Map;->get(Ljava/lang/Object;)Ljava/lang/Object;

    move-result-object v0

    check-cast v0, Lorg/spongycastle/math/ec/ECCurve;

    .line 178
    :goto_2b
    return-object v0

    :cond_2c
    move-object v0, v1

    .line 171
    goto :goto_2b

    .line 175
    :cond_2e
    check-cast v0, Ljava/security/spec/ECFieldF2m;

    .line 176
    invoke-virtual {v0}, Ljava/security/spec/ECFieldF2m;->getM()I

    move-result v1

    .line 177
    invoke-virtual {v0}, Ljava/security/spec/ECFieldF2m;->getMidTermsOfReductionPolynomial()[I

    move-result-object v0

    invoke-static {v0}, Lorg/spongycastle/jcajce/provider/asymmetric/util/ECUtil;->convertMidTerms([I)[I

    move-result-object v4

    .line 178
    new-instance v0, Lorg/spongycastle/math/ec/ECCurve$F2m;

    const/4 v2, 0x0

    aget v2, v4, v2

    const/4 v3, 0x1

    aget v3, v4, v3

    const/4 v7, 0x2

    aget v4, v4, v7

    invoke-direct/range {v0 .. v6}, Lorg/spongycastle/math/ec/ECCurve$F2m;-><init>(IIIILjava/math/BigInteger;Ljava/math/BigInteger;)V

    goto :goto_2b
.end method

.method public static convertField(Lorg/spongycastle/math/field/FiniteField;)Ljava/security/spec/ECField;
    .registers 5

    .prologue
    .line 184
    invoke-static {p0}, Lorg/spongycastle/math/ec/ECAlgorithms;->isFpField(Lorg/spongycastle/math/field/FiniteField;)Z

    move-result v0

    if-eqz v0, :cond_10

    .line 186
    new-instance v0, Ljava/security/spec/ECFieldFp;

    invoke-interface {p0}, Lorg/spongycastle/math/field/FiniteField;->getCharacteristic()Ljava/math/BigInteger;

    move-result-object v1

    invoke-direct {v0, v1}, Ljava/security/spec/ECFieldFp;-><init>(Ljava/math/BigInteger;)V

    .line 193
    :goto_f
    return-object v0

    .line 190
    :cond_10
    check-cast p0, Lorg/spongycastle/math/field/PolynomialExtensionField;

    invoke-interface {p0}, Lorg/spongycastle/math/field/PolynomialExtensionField;->getMinimalPolynomial()Lorg/spongycastle/math/field/Polynomial;

    move-result-object v1

    .line 191
    invoke-interface {v1}, Lorg/spongycastle/math/field/Polynomial;->getExponentsPresent()[I

    move-result-object v0

    .line 192
    const/4 v2, 0x1

    array-length v3, v0

    add-int/lit8 v3, v3, -0x1

    invoke-static {v0, v2, v3}, Lorg/spongycastle/util/Arrays;->copyOfRange([III)[I

    move-result-object v0

    invoke-static {v0}, Lorg/spongycastle/util/Arrays;->reverse([I)[I

    move-result-object v2

    .line 193
    new-instance v0, Ljava/security/spec/ECFieldF2m;

    invoke-interface {v1}, Lorg/spongycastle/math/field/Polynomial;->getDegree()I

    move-result v1

    invoke-direct {v0, v1, v2}, Ljava/security/spec/ECFieldF2m;-><init>(I[I)V

    goto :goto_f
.end method

.method public static convertPoint(Ljava/security/spec/ECParameterSpec;Ljava/security/spec/ECPoint;Z)Lorg/spongycastle/math/ec/ECPoint;
    .registers 4

    .prologue
    .line 243
    invoke-virtual {p0}, Ljava/security/spec/ECParameterSpec;->getCurve()Ljava/security/spec/EllipticCurve;

    move-result-object v0

    invoke-static {v0}, Lorg/spongycastle/jcajce/provider/asymmetric/util/EC5Util;->convertCurve(Ljava/security/spec/EllipticCurve;)Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v0

    invoke-static {v0, p1, p2}, Lorg/spongycastle/jcajce/provider/asymmetric/util/EC5Util;->convertPoint(Lorg/spongycastle/math/ec/ECCurve;Ljava/security/spec/ECPoint;Z)Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v0

    return-object v0
.end method

.method public static convertPoint(Lorg/spongycastle/math/ec/ECCurve;Ljava/security/spec/ECPoint;Z)Lorg/spongycastle/math/ec/ECPoint;
    .registers 5

    .prologue
    .line 251
    invoke-virtual {p1}, Ljava/security/spec/ECPoint;->getAffineX()Ljava/math/BigInteger;

    move-result-object v0

    invoke-virtual {p1}, Ljava/security/spec/ECPoint;->getAffineY()Ljava/math/BigInteger;

    move-result-object v1

    invoke-virtual {p0, v0, v1}, Lorg/spongycastle/math/ec/ECCurve;->createPoint(Ljava/math/BigInteger;Ljava/math/BigInteger;)Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v0

    return-object v0
.end method

.method public static convertSpec(Ljava/security/spec/EllipticCurve;Lorg/spongycastle/jce/spec/ECParameterSpec;)Ljava/security/spec/ECParameterSpec;
    .registers 8

    .prologue
    .line 201
    instance-of v0, p1, Lorg/spongycastle/jce/spec/ECNamedCurveParameterSpec;

    if-eqz v0, :cond_37

    .line 203
    new-instance v0, Lorg/spongycastle/jce/spec/ECNamedCurveSpec;

    move-object v1, p1

    check-cast v1, Lorg/spongycastle/jce/spec/ECNamedCurveParameterSpec;

    .line 204
    invoke-virtual {v1}, Lorg/spongycastle/jce/spec/ECNamedCurveParameterSpec;->getName()Ljava/lang/String;

    move-result-object v1

    new-instance v3, Ljava/security/spec/ECPoint;

    .line 207
    invoke-virtual {p1}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getG()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v2

    invoke-virtual {v2}, Lorg/spongycastle/math/ec/ECPoint;->getAffineXCoord()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

    .line 208
    invoke-virtual {p1}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getG()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v4

    invoke-virtual {v4}, Lorg/spongycastle/math/ec/ECPoint;->getAffineYCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v4

    invoke-virtual {v4}, Lorg/spongycastle/math/ec/ECFieldElement;->toBigInteger()Ljava/math/BigInteger;

    move-result-object v4

    invoke-direct {v3, v2, v4}, Ljava/security/spec/ECPoint;-><init>(Ljava/math/BigInteger;Ljava/math/BigInteger;)V

    .line 209
    invoke-virtual {p1}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getN()Ljava/math/BigInteger;

    move-result-object v4

    .line 210
    invoke-virtual {p1}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getH()Ljava/math/BigInteger;

    move-result-object v5

    move-object v2, p0

    invoke-direct/range {v0 .. v5}, Lorg/spongycastle/jce/spec/ECNamedCurveSpec;-><init>(Ljava/lang/String;Ljava/security/spec/EllipticCurve;Ljava/security/spec/ECPoint;Ljava/math/BigInteger;Ljava/math/BigInteger;)V

    .line 220
    :goto_36
    return-object v0

    .line 214
    :cond_37
    new-instance v0, Ljava/security/spec/ECParameterSpec;

    new-instance v1, Ljava/security/spec/ECPoint;

    .line 217
    invoke-virtual {p1}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getG()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v2

    invoke-virtual {v2}, Lorg/spongycastle/math/ec/ECPoint;->getAffineXCoord()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

    .line 218
    invoke-virtual {p1}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getG()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v3

    invoke-virtual {v3}, Lorg/spongycastle/math/ec/ECPoint;->getAffineYCoord()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 {v1, v2, v3}, Ljava/security/spec/ECPoint;-><init>(Ljava/math/BigInteger;Ljava/math/BigInteger;)V

    .line 219
    invoke-virtual {p1}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getN()Ljava/math/BigInteger;

    move-result-object v2

    .line 220
    invoke-virtual {p1}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getH()Ljava/math/BigInteger;

    move-result-object v3

    invoke-virtual {v3}, Ljava/math/BigInteger;->intValue()I

    move-result v3

    invoke-direct {v0, p0, v1, v2, v3}, Ljava/security/spec/ECParameterSpec;-><init>(Ljava/security/spec/EllipticCurve;Ljava/security/spec/ECPoint;Ljava/math/BigInteger;I)V

    goto :goto_36
.end method

.method public static convertSpec(Ljava/security/spec/ECParameterSpec;Z)Lorg/spongycastle/jce/spec/ECParameterSpec;
    .registers 8

    .prologue
    .line 228
    invoke-virtual {p0}, Ljava/security/spec/ECParameterSpec;->getCurve()Ljava/security/spec/EllipticCurve;

    move-result-object v0

    invoke-static {v0}, Lorg/spongycastle/jcajce/provider/asymmetric/util/EC5Util;->convertCurve(Ljava/security/spec/EllipticCurve;)Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v1

    .line 230
    new-instance v0, Lorg/spongycastle/jce/spec/ECParameterSpec;

    .line 232
    invoke-virtual {p0}, Ljava/security/spec/ECParameterSpec;->getGenerator()Ljava/security/spec/ECPoint;

    move-result-object v2

    invoke-static {v1, v2, p1}, Lorg/spongycastle/jcajce/provider/asymmetric/util/EC5Util;->convertPoint(Lorg/spongycastle/math/ec/ECCurve;Ljava/security/spec/ECPoint;Z)Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v2

    .line 233
    invoke-virtual {p0}, Ljava/security/spec/ECParameterSpec;->getOrder()Ljava/math/BigInteger;

    move-result-object v3

    .line 234
    invoke-virtual {p0}, Ljava/security/spec/ECParameterSpec;->getCofactor()I

    move-result v4

    int-to-long v4, v4

    invoke-static {v4, v5}, Ljava/math/BigInteger;->valueOf(J)Ljava/math/BigInteger;

    move-result-object v4

    .line 235
    invoke-virtual {p0}, Ljava/security/spec/ECParameterSpec;->getCurve()Ljava/security/spec/EllipticCurve;

    move-result-object v5

    invoke-virtual {v5}, Ljava/security/spec/EllipticCurve;->getSeed()[B

    move-result-object v5

    invoke-direct/range {v0 .. v5}, Lorg/spongycastle/jce/spec/ECParameterSpec;-><init>(Lorg/spongycastle/math/ec/ECCurve;Lorg/spongycastle/math/ec/ECPoint;Ljava/math/BigInteger;Ljava/math/BigInteger;[B)V

    return-object v0
.end method

.method public static convertToSpec(Lorg/spongycastle/asn1/x9/X962Parameters;Lorg/spongycastle/math/ec/ECCurve;)Ljava/security/spec/ECParameterSpec;
    .registers 9

    .prologue
    .line 81
    invoke-virtual {p0}, Lorg/spongycastle/asn1/x9/X962Parameters;->isNamedCurve()Z

    move-result v0

    if-eqz v0, :cond_48

    .line 83
    invoke-virtual {p0}, Lorg/spongycastle/asn1/x9/X962Parameters;->getParameters()Lorg/spongycastle/asn1/ASN1Primitive;

    move-result-object v0

    move-object v1, v0

    check-cast v1, Lorg/spongycastle/asn1/ASN1ObjectIdentifier;

    .line 84
    invoke-static {v1}, Lorg/spongycastle/jcajce/provider/asymmetric/util/ECUtil;->getNamedCurveByOid(Lorg/spongycastle/asn1/ASN1ObjectIdentifier;)Lorg/spongycastle/asn1/x9/X9ECParameters;

    move-result-object v5

    .line 86
    invoke-virtual {v5}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getSeed()[B

    move-result-object v0

    invoke-static {p1, v0}, Lorg/spongycastle/jcajce/provider/asymmetric/util/EC5Util;->convertCurve(Lorg/spongycastle/math/ec/ECCurve;[B)Ljava/security/spec/EllipticCurve;

    move-result-object v2

    .line 88
    new-instance v0, Lorg/spongycastle/jce/spec/ECNamedCurveSpec;

    .line 89
    invoke-static {v1}, Lorg/spongycastle/jcajce/provider/asymmetric/util/ECUtil;->getCurveName(Lorg/spongycastle/asn1/ASN1ObjectIdentifier;)Ljava/lang/String;

    move-result-object v1

    new-instance v3, Ljava/security/spec/ECPoint;

    .line 92
    invoke-virtual {v5}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getG()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v4

    invoke-virtual {v4}, Lorg/spongycastle/math/ec/ECPoint;->getAffineXCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v4

    invoke-virtual {v4}, Lorg/spongycastle/math/ec/ECFieldElement;->toBigInteger()Ljava/math/BigInteger;

    move-result-object v4

    .line 93
    invoke-virtual {v5}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getG()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v6

    invoke-virtual {v6}, Lorg/spongycastle/math/ec/ECPoint;->getAffineYCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v6

    invoke-virtual {v6}, Lorg/spongycastle/math/ec/ECFieldElement;->toBigInteger()Ljava/math/BigInteger;

    move-result-object v6

    invoke-direct {v3, v4, v6}, Ljava/security/spec/ECPoint;-><init>(Ljava/math/BigInteger;Ljava/math/BigInteger;)V

    .line 94
    invoke-virtual {v5}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getN()Ljava/math/BigInteger;

    move-result-object v4

    .line 95
    invoke-virtual {v5}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getH()Ljava/math/BigInteger;

    move-result-object v5

    invoke-direct/range {v0 .. v5}, Lorg/spongycastle/jce/spec/ECNamedCurveSpec;-><init>(Ljava/lang/String;Ljava/security/spec/EllipticCurve;Ljava/security/spec/ECPoint;Ljava/math/BigInteger;Ljava/math/BigInteger;)V

    .line 128
    :goto_47
    return-object v0

    .line 97
    :cond_48
    invoke-virtual {p0}, Lorg/spongycastle/asn1/x9/X962Parameters;->isImplicitlyCA()Z

    move-result v0

    if-eqz v0, :cond_50

    .line 99
    const/4 v0, 0x0

    goto :goto_47

    .line 103
    :cond_50
    invoke-virtual {p0}, Lorg/spongycastle/asn1/x9/X962Parameters;->getParameters()Lorg/spongycastle/asn1/ASN1Primitive;

    move-result-object v0

    invoke-static {v0}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getInstance(Ljava/lang/Object;)Lorg/spongycastle/asn1/x9/X9ECParameters;

    move-result-object v1

    .line 105
    invoke-virtual {v1}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getSeed()[B

    move-result-object v0

    invoke-static {p1, v0}, Lorg/spongycastle/jcajce/provider/asymmetric/util/EC5Util;->convertCurve(Lorg/spongycastle/math/ec/ECCurve;[B)Ljava/security/spec/EllipticCurve;

    move-result-object v2

    .line 107
    invoke-virtual {v1}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getH()Ljava/math/BigInteger;

    move-result-object v0

    if-eqz v0, :cond_95

    .line 109
    new-instance v0, Ljava/security/spec/ECParameterSpec;

    new-instance v3, Ljava/security/spec/ECPoint;

    .line 112
    invoke-virtual {v1}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getG()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v4

    invoke-virtual {v4}, Lorg/spongycastle/math/ec/ECPoint;->getAffineXCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v4

    invoke-virtual {v4}, Lorg/spongycastle/math/ec/ECFieldElement;->toBigInteger()Ljava/math/BigInteger;

    move-result-object v4

    .line 113
    invoke-virtual {v1}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getG()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v5

    invoke-virtual {v5}, Lorg/spongycastle/math/ec/ECPoint;->getAffineYCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v5

    invoke-virtual {v5}, Lorg/spongycastle/math/ec/ECFieldElement;->toBigInteger()Ljava/math/BigInteger;

    move-result-object v5

    invoke-direct {v3, v4, v5}, Ljava/security/spec/ECPoint;-><init>(Ljava/math/BigInteger;Ljava/math/BigInteger;)V

    .line 114
    invoke-virtual {v1}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getN()Ljava/math/BigInteger;

    move-result-object v4

    .line 115
    invoke-virtual {v1}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getH()Ljava/math/BigInteger;

    move-result-object v1

    invoke-virtual {v1}, Ljava/math/BigInteger;->intValue()I

    move-result v1

    invoke-direct {v0, v2, v3, v4, v1}, Ljava/security/spec/ECParameterSpec;-><init>(Ljava/security/spec/EllipticCurve;Ljava/security/spec/ECPoint;Ljava/math/BigInteger;I)V

    goto :goto_47

    .line 119
    :cond_95
    new-instance v0, Ljava/security/spec/ECParameterSpec;

    new-instance v3, Ljava/security/spec/ECPoint;

    .line 122
    invoke-virtual {v1}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getG()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v4

    invoke-virtual {v4}, Lorg/spongycastle/math/ec/ECPoint;->getAffineXCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v4

    invoke-virtual {v4}, Lorg/spongycastle/math/ec/ECFieldElement;->toBigInteger()Ljava/math/BigInteger;

    move-result-object v4

    .line 123
    invoke-virtual {v1}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getG()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v5

    invoke-virtual {v5}, Lorg/spongycastle/math/ec/ECPoint;->getAffineYCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v5

    invoke-virtual {v5}, Lorg/spongycastle/math/ec/ECFieldElement;->toBigInteger()Ljava/math/BigInteger;

    move-result-object v5

    invoke-direct {v3, v4, v5}, Ljava/security/spec/ECPoint;-><init>(Ljava/math/BigInteger;Ljava/math/BigInteger;)V

    .line 124
    invoke-virtual {v1}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getN()Ljava/math/BigInteger;

    move-result-object v1

    const/4 v4, 0x1

    invoke-direct {v0, v2, v3, v1, v4}, Ljava/security/spec/ECParameterSpec;-><init>(Ljava/security/spec/EllipticCurve;Ljava/security/spec/ECPoint;Ljava/math/BigInteger;I)V

    goto :goto_47
.end method

.method public static convertToSpec(Lorg/spongycastle/asn1/x9/X9ECParameters;)Ljava/security/spec/ECParameterSpec;
    .registers 6

    .prologue
    .line 134
    new-instance v0, Ljava/security/spec/ECParameterSpec;

    .line 135
    invoke-virtual {p0}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getCurve()Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v1

    const/4 v2, 0x0

    invoke-static {v1, v2}, Lorg/spongycastle/jcajce/provider/asymmetric/util/EC5Util;->convertCurve(Lorg/spongycastle/math/ec/ECCurve;[B)Ljava/security/spec/EllipticCurve;

    move-result-object v1

    new-instance v2, Ljava/security/spec/ECPoint;

    .line 137
    invoke-virtual {p0}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getG()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v3

    invoke-virtual {v3}, Lorg/spongycastle/math/ec/ECPoint;->getAffineXCoord()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

    .line 138
    invoke-virtual {p0}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getG()Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v4

    invoke-virtual {v4}, Lorg/spongycastle/math/ec/ECPoint;->getAffineYCoord()Lorg/spongycastle/math/ec/ECFieldElement;

    move-result-object v4

    invoke-virtual {v4}, Lorg/spongycastle/math/ec/ECFieldElement;->toBigInteger()Ljava/math/BigInteger;

    move-result-object v4

    invoke-direct {v2, v3, v4}, Ljava/security/spec/ECPoint;-><init>(Ljava/math/BigInteger;Ljava/math/BigInteger;)V

    .line 139
    invoke-virtual {p0}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getN()Ljava/math/BigInteger;

    move-result-object v3

    .line 140
    invoke-virtual {p0}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getH()Ljava/math/BigInteger;

    move-result-object v4

    invoke-virtual {v4}, Ljava/math/BigInteger;->intValue()I

    move-result v4

    invoke-direct {v0, v1, v2, v3, v4}, Ljava/security/spec/ECParameterSpec;-><init>(Ljava/security/spec/EllipticCurve;Ljava/security/spec/ECPoint;Ljava/math/BigInteger;I)V

    return-object v0
.end method

.method public static getCurve(Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;Lorg/spongycastle/asn1/x9/X962Parameters;)Lorg/spongycastle/math/ec/ECCurve;
    .registers 3

    .prologue
    .line 54
    invoke-virtual {p1}, Lorg/spongycastle/asn1/x9/X962Parameters;->isNamedCurve()Z

    move-result v0

    if-eqz v0, :cond_17

    .line 56
    invoke-virtual {p1}, Lorg/spongycastle/asn1/x9/X962Parameters;->getParameters()Lorg/spongycastle/asn1/ASN1Primitive;

    move-result-object v0

    invoke-static {v0}, Lorg/spongycastle/asn1/ASN1ObjectIdentifier;->getInstance(Ljava/lang/Object;)Lorg/spongycastle/asn1/ASN1ObjectIdentifier;

    move-result-object v0

    .line 57
    invoke-static {v0}, Lorg/spongycastle/jcajce/provider/asymmetric/util/ECUtil;->getNamedCurveByOid(Lorg/spongycastle/asn1/ASN1ObjectIdentifier;)Lorg/spongycastle/asn1/x9/X9ECParameters;

    move-result-object v0

    .line 59
    invoke-virtual {v0}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getCurve()Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v0

    .line 72
    :goto_16
    return-object v0

    .line 61
    :cond_17
    invoke-virtual {p1}, Lorg/spongycastle/asn1/x9/X962Parameters;->isImplicitlyCA()Z

    move-result v0

    if-eqz v0, :cond_26

    .line 63
    invoke-interface {p0}, Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;->getEcImplicitlyCa()Lorg/spongycastle/jce/spec/ECParameterSpec;

    move-result-object v0

    invoke-virtual {v0}, Lorg/spongycastle/jce/spec/ECParameterSpec;->getCurve()Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v0

    goto :goto_16

    .line 67
    :cond_26
    invoke-virtual {p1}, Lorg/spongycastle/asn1/x9/X962Parameters;->getParameters()Lorg/spongycastle/asn1/ASN1Primitive;

    move-result-object v0

    invoke-static {v0}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getInstance(Ljava/lang/Object;)Lorg/spongycastle/asn1/x9/X9ECParameters;

    move-result-object v0

    .line 69
    invoke-virtual {v0}, Lorg/spongycastle/asn1/x9/X9ECParameters;->getCurve()Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v0

    goto :goto_16
.end method