RC2$AlgParamGen.smali

.class public Lorg/spongycastle/jcajce/provider/symmetric/RC2$AlgParamGen;
.super Lorg/spongycastle/jcajce/provider/symmetric/util/BaseAlgorithmParameterGenerator;
.source "RC2.java"


# instance fields
.field spec:Ljavax/crypto/spec/RC2ParameterSpec;


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

    .prologue
    .line 201
    invoke-direct {p0}, Lorg/spongycastle/jcajce/provider/symmetric/util/BaseAlgorithmParameterGenerator;-><init>()V

    .line 204
    const/4 v0, 0x0

    iput-object v0, p0, Lorg/spongycastle/jcajce/provider/symmetric/RC2$AlgParamGen;->spec:Ljavax/crypto/spec/RC2ParameterSpec;

    return-void
.end method


# virtual methods
.method protected engineGenerateParameters()Ljava/security/AlgorithmParameters;
    .registers 4

    .prologue
    .line 224
    iget-object v0, p0, Lorg/spongycastle/jcajce/provider/symmetric/RC2$AlgParamGen;->spec:Ljavax/crypto/spec/RC2ParameterSpec;

    if-nez v0, :cond_32

    .line 226
    const/16 v0, 0x8

    new-array v1, v0, [B

    .line 228
    iget-object v0, p0, Lorg/spongycastle/jcajce/provider/symmetric/RC2$AlgParamGen;->random:Ljava/security/SecureRandom;

    if-nez v0, :cond_13

    .line 230
    new-instance v0, Ljava/security/SecureRandom;

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

    iput-object v0, p0, Lorg/spongycastle/jcajce/provider/symmetric/RC2$AlgParamGen;->random:Ljava/security/SecureRandom;

    .line 233
    :cond_13
    iget-object v0, p0, Lorg/spongycastle/jcajce/provider/symmetric/RC2$AlgParamGen;->random:Ljava/security/SecureRandom;

    invoke-virtual {v0, v1}, Ljava/security/SecureRandom;->nextBytes([B)V

    .line 237
    :try_start_18
    const-string v0, "RC2"

    invoke-virtual {p0, v0}, Lorg/spongycastle/jcajce/provider/symmetric/RC2$AlgParamGen;->createParametersInstance(Ljava/lang/String;)Ljava/security/AlgorithmParameters;

    move-result-object v0

    .line 238
    new-instance v2, Ljavax/crypto/spec/IvParameterSpec;

    invoke-direct {v2, v1}, Ljavax/crypto/spec/IvParameterSpec;-><init>([B)V

    invoke-virtual {v0, v2}, Ljava/security/AlgorithmParameters;->init(Ljava/security/spec/AlgorithmParameterSpec;)V
    :try_end_26
    .catch Ljava/lang/Exception; {:try_start_18 .. :try_end_26} :catch_27

    .line 258
    :goto_26
    return-object v0

    .line 240
    :catch_27
    move-exception v0

    .line 242
    new-instance v1, Ljava/lang/RuntimeException;

    invoke-virtual {v0}, Ljava/lang/Exception;->getMessage()Ljava/lang/String;

    move-result-object v0

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

    throw v1

    .line 249
    :cond_32
    :try_start_32
    const-string v0, "RC2"

    invoke-virtual {p0, v0}, Lorg/spongycastle/jcajce/provider/symmetric/RC2$AlgParamGen;->createParametersInstance(Ljava/lang/String;)Ljava/security/AlgorithmParameters;

    move-result-object v0

    .line 250
    iget-object v1, p0, Lorg/spongycastle/jcajce/provider/symmetric/RC2$AlgParamGen;->spec:Ljavax/crypto/spec/RC2ParameterSpec;

    invoke-virtual {v0, v1}, Ljava/security/AlgorithmParameters;->init(Ljava/security/spec/AlgorithmParameterSpec;)V
    :try_end_3d
    .catch Ljava/lang/Exception; {:try_start_32 .. :try_end_3d} :catch_3e

    goto :goto_26

    .line 252
    :catch_3e
    move-exception v0

    .line 254
    new-instance v1, Ljava/lang/RuntimeException;

    invoke-virtual {v0}, Ljava/lang/Exception;->getMessage()Ljava/lang/String;

    move-result-object v0

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

    throw v1
.end method

.method protected engineInit(Ljava/security/spec/AlgorithmParameterSpec;Ljava/security/SecureRandom;)V
    .registers 5

    .prologue
    .line 211
    instance-of v0, p1, Ljavax/crypto/spec/RC2ParameterSpec;

    if-eqz v0, :cond_9

    .line 213
    check-cast p1, Ljavax/crypto/spec/RC2ParameterSpec;

    iput-object p1, p0, Lorg/spongycastle/jcajce/provider/symmetric/RC2$AlgParamGen;->spec:Ljavax/crypto/spec/RC2ParameterSpec;

    .line 214
    return-void

    .line 217
    :cond_9
    new-instance v0, Ljava/security/InvalidAlgorithmParameterException;

    const-string v1, "No supported AlgorithmParameterSpec for RC2 parameter generation."

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

    throw v0
.end method