KeyPairGeneratorSpi.smali

.class public Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;
.super Ljava/security/KeyPairGenerator;
.source "KeyPairGeneratorSpi.java"


# static fields
.field private static lock:Ljava/lang/Object;

.field private static params:Ljava/util/Hashtable;


# instance fields
.field certainty:I

.field engine:Lorg/spongycastle/crypto/generators/DHBasicKeyPairGenerator;

.field initialised:Z

.field param:Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;

.field random:Ljava/security/SecureRandom;

.field strength:I


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

    .prologue
    .line 24
    new-instance v0, Ljava/util/Hashtable;

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

    sput-object v0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->params:Ljava/util/Hashtable;

    .line 25
    new-instance v0, Ljava/lang/Object;

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

    sput-object v0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->lock:Ljava/lang/Object;

    return-void
.end method

.method public constructor <init>()V
    .registers 2

    .prologue
    .line 36
    const-string v0, "DH"

    invoke-direct {p0, v0}, Ljava/security/KeyPairGenerator;-><init>(Ljava/lang/String;)V

    .line 28
    new-instance v0, Lorg/spongycastle/crypto/generators/DHBasicKeyPairGenerator;

    invoke-direct {v0}, Lorg/spongycastle/crypto/generators/DHBasicKeyPairGenerator;-><init>()V

    iput-object v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->engine:Lorg/spongycastle/crypto/generators/DHBasicKeyPairGenerator;

    .line 29
    const/16 v0, 0x400

    iput v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->strength:I

    .line 30
    const/16 v0, 0x14

    iput v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->certainty:I

    .line 31
    new-instance v0, Ljava/security/SecureRandom;

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

    iput-object v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->random:Ljava/security/SecureRandom;

    .line 32
    const/4 v0, 0x0

    iput-boolean v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->initialised:Z

    .line 37
    return-void
.end method


# virtual methods
.method public generateKeyPair()Ljava/security/KeyPair;
    .registers 8

    .prologue
    .line 66
    iget-boolean v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->initialised:Z

    if-nez v0, :cond_26

    .line 68
    iget v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->strength:I

    invoke-static {v0}, Lorg/spongycastle/util/Integers;->valueOf(I)Ljava/lang/Integer;

    move-result-object v0

    .line 70
    sget-object v1, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->params:Ljava/util/Hashtable;

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

    move-result v1

    if-eqz v1, :cond_48

    .line 72
    sget-object v1, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->params:Ljava/util/Hashtable;

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

    move-result-object v0

    check-cast v0, Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;

    iput-object v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->param:Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;

    .line 107
    :goto_1c
    iget-object v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->engine:Lorg/spongycastle/crypto/generators/DHBasicKeyPairGenerator;

    iget-object v1, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->param:Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;

    invoke-virtual {v0, v1}, Lorg/spongycastle/crypto/generators/DHBasicKeyPairGenerator;->init(Lorg/spongycastle/crypto/KeyGenerationParameters;)V

    .line 109
    const/4 v0, 0x1

    iput-boolean v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->initialised:Z

    .line 112
    :cond_26
    iget-object v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->engine:Lorg/spongycastle/crypto/generators/DHBasicKeyPairGenerator;

    invoke-virtual {v0}, Lorg/spongycastle/crypto/generators/DHBasicKeyPairGenerator;->generateKeyPair()Lorg/spongycastle/crypto/AsymmetricCipherKeyPair;

    move-result-object v1

    .line 113
    invoke-virtual {v1}, Lorg/spongycastle/crypto/AsymmetricCipherKeyPair;->getPublic()Lorg/spongycastle/crypto/params/AsymmetricKeyParameter;

    move-result-object v0

    check-cast v0, Lorg/spongycastle/crypto/params/DHPublicKeyParameters;

    .line 114
    invoke-virtual {v1}, Lorg/spongycastle/crypto/AsymmetricCipherKeyPair;->getPrivate()Lorg/spongycastle/crypto/params/AsymmetricKeyParameter;

    move-result-object v1

    check-cast v1, Lorg/spongycastle/crypto/params/DHPrivateKeyParameters;

    .line 116
    new-instance v2, Ljava/security/KeyPair;

    new-instance v3, Lorg/spongycastle/jcajce/provider/asymmetric/dh/BCDHPublicKey;

    invoke-direct {v3, v0}, Lorg/spongycastle/jcajce/provider/asymmetric/dh/BCDHPublicKey;-><init>(Lorg/spongycastle/crypto/params/DHPublicKeyParameters;)V

    new-instance v0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/BCDHPrivateKey;

    invoke-direct {v0, v1}, Lorg/spongycastle/jcajce/provider/asymmetric/dh/BCDHPrivateKey;-><init>(Lorg/spongycastle/crypto/params/DHPrivateKeyParameters;)V

    invoke-direct {v2, v3, v0}, Ljava/security/KeyPair;-><init>(Ljava/security/PublicKey;Ljava/security/PrivateKey;)V

    return-object v2

    .line 76
    :cond_48
    sget-object v1, Lorg/spongycastle/jce/provider/BouncyCastleProvider;->CONFIGURATION:Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;

    iget v2, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->strength:I

    invoke-interface {v1, v2}, Lorg/spongycastle/jcajce/provider/config/ProviderConfiguration;->getDHDefaultParameters(I)Ljavax/crypto/spec/DHParameterSpec;

    move-result-object v1

    .line 78
    if-eqz v1, :cond_6e

    .line 80
    new-instance v0, Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;

    iget-object v2, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->random:Ljava/security/SecureRandom;

    new-instance v3, Lorg/spongycastle/crypto/params/DHParameters;

    invoke-virtual {v1}, Ljavax/crypto/spec/DHParameterSpec;->getP()Ljava/math/BigInteger;

    move-result-object v4

    invoke-virtual {v1}, Ljavax/crypto/spec/DHParameterSpec;->getG()Ljava/math/BigInteger;

    move-result-object v5

    const/4 v6, 0x0

    invoke-virtual {v1}, Ljavax/crypto/spec/DHParameterSpec;->getL()I

    move-result v1

    invoke-direct {v3, v4, v5, v6, v1}, Lorg/spongycastle/crypto/params/DHParameters;-><init>(Ljava/math/BigInteger;Ljava/math/BigInteger;Ljava/math/BigInteger;I)V

    invoke-direct {v0, v2, v3}, Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;-><init>(Ljava/security/SecureRandom;Lorg/spongycastle/crypto/params/DHParameters;)V

    iput-object v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->param:Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;

    goto :goto_1c

    .line 84
    :cond_6e
    sget-object v1, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->lock:Ljava/lang/Object;

    monitor-enter v1

    .line 88
    :try_start_71
    sget-object v2, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->params:Ljava/util/Hashtable;

    invoke-virtual {v2, v0}, Ljava/util/Hashtable;->containsKey(Ljava/lang/Object;)Z

    move-result v2

    if-eqz v2, :cond_88

    .line 90
    sget-object v2, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->params:Ljava/util/Hashtable;

    invoke-virtual {v2, v0}, Ljava/util/Hashtable;->get(Ljava/lang/Object;)Ljava/lang/Object;

    move-result-object v0

    check-cast v0, Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;

    iput-object v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->param:Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;

    .line 103
    :goto_83
    monitor-exit v1

    goto :goto_1c

    :catchall_85
    move-exception v0

    monitor-exit v1
    :try_end_87
    .catchall {:try_start_71 .. :try_end_87} :catchall_85

    throw v0

    .line 95
    :cond_88
    :try_start_88
    new-instance v2, Lorg/spongycastle/crypto/generators/DHParametersGenerator;

    invoke-direct {v2}, Lorg/spongycastle/crypto/generators/DHParametersGenerator;-><init>()V

    .line 97
    iget v3, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->strength:I

    iget v4, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->certainty:I

    iget-object v5, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->random:Ljava/security/SecureRandom;

    invoke-virtual {v2, v3, v4, v5}, Lorg/spongycastle/crypto/generators/DHParametersGenerator;->init(IILjava/security/SecureRandom;)V

    .line 99
    new-instance v3, Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;

    iget-object v4, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->random:Ljava/security/SecureRandom;

    invoke-virtual {v2}, Lorg/spongycastle/crypto/generators/DHParametersGenerator;->generateParameters()Lorg/spongycastle/crypto/params/DHParameters;

    move-result-object v2

    invoke-direct {v3, v4, v2}, Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;-><init>(Ljava/security/SecureRandom;Lorg/spongycastle/crypto/params/DHParameters;)V

    iput-object v3, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->param:Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;

    .line 101
    sget-object v2, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->params:Ljava/util/Hashtable;

    iget-object v3, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->param:Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;

    invoke-virtual {v2, v0, v3}, Ljava/util/Hashtable;->put(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
    :try_end_aa
    .catchall {:try_start_88 .. :try_end_aa} :catchall_85

    goto :goto_83
.end method

.method public initialize(ILjava/security/SecureRandom;)V
    .registers 3

    .prologue
    .line 43
    iput p1, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->strength:I

    .line 44
    iput-object p2, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->random:Ljava/security/SecureRandom;

    .line 45
    return-void
.end method

.method public initialize(Ljava/security/spec/AlgorithmParameterSpec;Ljava/security/SecureRandom;)V
    .registers 9

    .prologue
    .line 52
    instance-of v0, p1, Ljavax/crypto/spec/DHParameterSpec;

    if-nez v0, :cond_c

    .line 54
    new-instance v0, Ljava/security/InvalidAlgorithmParameterException;

    const-string v1, "parameter object not a DHParameterSpec"

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

    throw v0

    .line 56
    :cond_c
    check-cast p1, Ljavax/crypto/spec/DHParameterSpec;

    .line 58
    new-instance v0, Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;

    new-instance v1, Lorg/spongycastle/crypto/params/DHParameters;

    invoke-virtual {p1}, Ljavax/crypto/spec/DHParameterSpec;->getP()Ljava/math/BigInteger;

    move-result-object v2

    invoke-virtual {p1}, Ljavax/crypto/spec/DHParameterSpec;->getG()Ljava/math/BigInteger;

    move-result-object v3

    const/4 v4, 0x0

    invoke-virtual {p1}, Ljavax/crypto/spec/DHParameterSpec;->getL()I

    move-result v5

    invoke-direct {v1, v2, v3, v4, v5}, Lorg/spongycastle/crypto/params/DHParameters;-><init>(Ljava/math/BigInteger;Ljava/math/BigInteger;Ljava/math/BigInteger;I)V

    invoke-direct {v0, p2, v1}, Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;-><init>(Ljava/security/SecureRandom;Lorg/spongycastle/crypto/params/DHParameters;)V

    iput-object v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->param:Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;

    .line 60
    iget-object v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->engine:Lorg/spongycastle/crypto/generators/DHBasicKeyPairGenerator;

    iget-object v1, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->param:Lorg/spongycastle/crypto/params/DHKeyGenerationParameters;

    invoke-virtual {v0, v1}, Lorg/spongycastle/crypto/generators/DHBasicKeyPairGenerator;->init(Lorg/spongycastle/crypto/KeyGenerationParameters;)V

    .line 61
    const/4 v0, 0x1

    iput-boolean v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/dh/KeyPairGeneratorSpi;->initialised:Z

    .line 62
    return-void
.end method