AlgorithmParametersSpi.smali

.class public Lorg/spongycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParametersSpi;
.super Lorg/spongycastle/jcajce/provider/symmetric/util/BaseAlgorithmParameters;
.source "AlgorithmParametersSpi.java"


# instance fields
.field currentSpec:Lorg/spongycastle/jce/spec/ElGamalParameterSpec;


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

    .prologue
    .line 15
    invoke-direct {p0}, Lorg/spongycastle/jcajce/provider/symmetric/util/BaseAlgorithmParameters;-><init>()V

    return-void
.end method


# virtual methods
.method protected engineGetEncoded()[B
    .registers 4

    .prologue
    .line 30
    new-instance v0, Lorg/spongycastle/asn1/oiw/ElGamalParameter;

    iget-object v1, p0, Lorg/spongycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParametersSpi;->currentSpec:Lorg/spongycastle/jce/spec/ElGamalParameterSpec;

    invoke-virtual {v1}, Lorg/spongycastle/jce/spec/ElGamalParameterSpec;->getP()Ljava/math/BigInteger;

    move-result-object v1

    iget-object v2, p0, Lorg/spongycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParametersSpi;->currentSpec:Lorg/spongycastle/jce/spec/ElGamalParameterSpec;

    invoke-virtual {v2}, Lorg/spongycastle/jce/spec/ElGamalParameterSpec;->getG()Ljava/math/BigInteger;

    move-result-object v2

    invoke-direct {v0, v1, v2}, Lorg/spongycastle/asn1/oiw/ElGamalParameter;-><init>(Ljava/math/BigInteger;Ljava/math/BigInteger;)V

    .line 34
    :try_start_11
    const-string v1, "DER"

    invoke-virtual {v0, v1}, Lorg/spongycastle/asn1/oiw/ElGamalParameter;->getEncoded(Ljava/lang/String;)[B
    :try_end_16
    .catch Ljava/io/IOException; {:try_start_11 .. :try_end_16} :catch_18

    move-result-object v0

    return-object v0

    .line 38
    :catch_18
    move-exception v0

    new-instance v0, Ljava/lang/RuntimeException;

    const-string v1, "Error encoding ElGamalParameters"

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

    throw v0
.end method

.method protected engineGetEncoded(Ljava/lang/String;)[B
    .registers 3

    .prologue
    .line 45
    invoke-virtual {p0, p1}, Lorg/spongycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParametersSpi;->isASN1FormatString(Ljava/lang/String;)Z

    move-result v0

    if-nez v0, :cond_e

    const-string v0, "X.509"

    invoke-virtual {p1, v0}, Ljava/lang/String;->equalsIgnoreCase(Ljava/lang/String;)Z

    move-result v0

    if-eqz v0, :cond_13

    .line 47
    :cond_e
    invoke-virtual {p0}, Lorg/spongycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParametersSpi;->engineGetEncoded()[B

    move-result-object v0

    .line 50
    :goto_12
    return-object v0

    :cond_13
    const/4 v0, 0x0

    goto :goto_12
.end method

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

    .prologue
    .line 73
    instance-of v0, p1, Lorg/spongycastle/jce/spec/ElGamalParameterSpec;

    if-nez v0, :cond_10

    instance-of v0, p1, Ljavax/crypto/spec/DHParameterSpec;

    if-nez v0, :cond_10

    .line 75
    new-instance v0, Ljava/security/spec/InvalidParameterSpecException;

    const-string v1, "DHParameterSpec required to initialise a ElGamal algorithm parameters object"

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

    throw v0

    .line 78
    :cond_10
    instance-of v0, p1, Lorg/spongycastle/jce/spec/ElGamalParameterSpec;

    if-eqz v0, :cond_19

    .line 80
    check-cast p1, Lorg/spongycastle/jce/spec/ElGamalParameterSpec;

    iput-object p1, p0, Lorg/spongycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParametersSpi;->currentSpec:Lorg/spongycastle/jce/spec/ElGamalParameterSpec;

    .line 88
    :goto_18
    return-void

    .line 84
    :cond_19
    check-cast p1, Ljavax/crypto/spec/DHParameterSpec;

    .line 86
    new-instance v0, Lorg/spongycastle/jce/spec/ElGamalParameterSpec;

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

    move-result-object v1

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

    move-result-object v2

    invoke-direct {v0, v1, v2}, Lorg/spongycastle/jce/spec/ElGamalParameterSpec;-><init>(Ljava/math/BigInteger;Ljava/math/BigInteger;)V

    iput-object v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParametersSpi;->currentSpec:Lorg/spongycastle/jce/spec/ElGamalParameterSpec;

    goto :goto_18
.end method

.method protected engineInit([B)V
    .registers 5

    .prologue
    .line 96
    :try_start_0
    invoke-static {p1}, Lorg/spongycastle/asn1/ASN1Primitive;->fromByteArray([B)Lorg/spongycastle/asn1/ASN1Primitive;

    move-result-object v0

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

    move-result-object v0

    .line 98
    new-instance v1, Lorg/spongycastle/jce/spec/ElGamalParameterSpec;

    invoke-virtual {v0}, Lorg/spongycastle/asn1/oiw/ElGamalParameter;->getP()Ljava/math/BigInteger;

    move-result-object v2

    invoke-virtual {v0}, Lorg/spongycastle/asn1/oiw/ElGamalParameter;->getG()Ljava/math/BigInteger;

    move-result-object v0

    invoke-direct {v1, v2, v0}, Lorg/spongycastle/jce/spec/ElGamalParameterSpec;-><init>(Ljava/math/BigInteger;Ljava/math/BigInteger;)V

    iput-object v1, p0, Lorg/spongycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParametersSpi;->currentSpec:Lorg/spongycastle/jce/spec/ElGamalParameterSpec;
    :try_end_17
    .catch Ljava/lang/ClassCastException; {:try_start_0 .. :try_end_17} :catch_18
    .catch Ljava/lang/ArrayIndexOutOfBoundsException; {:try_start_0 .. :try_end_17} :catch_21

    .line 107
    return-void

    .line 102
    :catch_18
    move-exception v0

    new-instance v0, Ljava/io/IOException;

    const-string v1, "Not a valid ElGamal Parameter encoding."

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

    throw v0

    .line 106
    :catch_21
    move-exception v0

    new-instance v0, Ljava/io/IOException;

    const-string v1, "Not a valid ElGamal Parameter encoding."

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

    throw v0
.end method

.method protected engineInit([BLjava/lang/String;)V
    .registers 6

    .prologue
    .line 115
    invoke-virtual {p0, p2}, Lorg/spongycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParametersSpi;->isASN1FormatString(Ljava/lang/String;)Z

    move-result v0

    if-nez v0, :cond_e

    const-string v0, "X.509"

    invoke-virtual {p2, v0}, Ljava/lang/String;->equalsIgnoreCase(Ljava/lang/String;)Z

    move-result v0

    if-eqz v0, :cond_12

    .line 117
    :cond_e
    invoke-virtual {p0, p1}, Lorg/spongycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParametersSpi;->engineInit([B)V

    return-void

    .line 121
    :cond_12
    new-instance v0, Ljava/io/IOException;

    new-instance v1, Ljava/lang/StringBuilder;

    const-string v2, "Unknown parameter format "

    invoke-direct {v1, v2}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V

    invoke-virtual {v1, p2}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v1

    invoke-virtual {v1}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v1

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

    throw v0
.end method

.method protected engineToString()Ljava/lang/String;
    .registers 2

    .prologue
    .line 127
    const-string v0, "ElGamal Parameters"

    return-object v0
.end method

.method protected localEngineGetParameterSpec(Ljava/lang/Class;)Ljava/security/spec/AlgorithmParameterSpec;
    .registers 5

    .prologue
    .line 57
    const-class v0, Lorg/spongycastle/jce/spec/ElGamalParameterSpec;

    if-eq p1, v0, :cond_8

    const-class v0, Ljava/security/spec/AlgorithmParameterSpec;

    if-ne p1, v0, :cond_b

    .line 59
    :cond_8
    iget-object v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParametersSpi;->currentSpec:Lorg/spongycastle/jce/spec/ElGamalParameterSpec;

    .line 63
    :goto_a
    return-object v0

    .line 61
    :cond_b
    const-class v0, Ljavax/crypto/spec/DHParameterSpec;

    if-ne p1, v0, :cond_21

    .line 63
    new-instance v0, Ljavax/crypto/spec/DHParameterSpec;

    iget-object v1, p0, Lorg/spongycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParametersSpi;->currentSpec:Lorg/spongycastle/jce/spec/ElGamalParameterSpec;

    invoke-virtual {v1}, Lorg/spongycastle/jce/spec/ElGamalParameterSpec;->getP()Ljava/math/BigInteger;

    move-result-object v1

    iget-object v2, p0, Lorg/spongycastle/jcajce/provider/asymmetric/elgamal/AlgorithmParametersSpi;->currentSpec:Lorg/spongycastle/jce/spec/ElGamalParameterSpec;

    invoke-virtual {v2}, Lorg/spongycastle/jce/spec/ElGamalParameterSpec;->getG()Ljava/math/BigInteger;

    move-result-object v2

    invoke-direct {v0, v1, v2}, Ljavax/crypto/spec/DHParameterSpec;-><init>(Ljava/math/BigInteger;Ljava/math/BigInteger;)V

    goto :goto_a

    .line 66
    :cond_21
    new-instance v0, Ljava/security/spec/InvalidParameterSpecException;

    const-string v1, "unknown parameter spec passed to ElGamal parameters object."

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

    throw v0
.end method