AlgorithmParametersSpi.smali

.class public Lorg/spongycastle/jcajce/provider/asymmetric/ies/AlgorithmParametersSpi;
.super Ljava/security/AlgorithmParametersSpi;
.source "AlgorithmParametersSpi.java"


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


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

    .prologue
    .line 17
    invoke-direct {p0}, Ljava/security/AlgorithmParametersSpi;-><init>()V

    return-void
.end method


# virtual methods
.method protected engineGetEncoded()[B
    .registers 5

    .prologue
    .line 47
    :try_start_0
    new-instance v0, Lorg/spongycastle/asn1/ASN1EncodableVector;

    invoke-direct {v0}, Lorg/spongycastle/asn1/ASN1EncodableVector;-><init>()V

    .line 49
    new-instance v1, Lorg/spongycastle/asn1/DEROctetString;

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

    invoke-virtual {v2}, Lorg/spongycastle/jce/spec/IESParameterSpec;->getDerivationV()[B

    move-result-object v2

    invoke-direct {v1, v2}, Lorg/spongycastle/asn1/DEROctetString;-><init>([B)V

    invoke-virtual {v0, v1}, Lorg/spongycastle/asn1/ASN1EncodableVector;->add(Lorg/spongycastle/asn1/ASN1Encodable;)V

    .line 50
    new-instance v1, Lorg/spongycastle/asn1/DEROctetString;

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

    invoke-virtual {v2}, Lorg/spongycastle/jce/spec/IESParameterSpec;->getEncodingV()[B

    move-result-object v2

    invoke-direct {v1, v2}, Lorg/spongycastle/asn1/DEROctetString;-><init>([B)V

    invoke-virtual {v0, v1}, Lorg/spongycastle/asn1/ASN1EncodableVector;->add(Lorg/spongycastle/asn1/ASN1Encodable;)V

    .line 51
    new-instance v1, Lorg/spongycastle/asn1/ASN1Integer;

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

    invoke-virtual {v2}, Lorg/spongycastle/jce/spec/IESParameterSpec;->getMacKeySize()I

    move-result v2

    int-to-long v2, v2

    invoke-direct {v1, v2, v3}, Lorg/spongycastle/asn1/ASN1Integer;-><init>(J)V

    invoke-virtual {v0, v1}, Lorg/spongycastle/asn1/ASN1EncodableVector;->add(Lorg/spongycastle/asn1/ASN1Encodable;)V

    .line 53
    new-instance v1, Lorg/spongycastle/asn1/DERSequence;

    invoke-direct {v1, v0}, Lorg/spongycastle/asn1/DERSequence;-><init>(Lorg/spongycastle/asn1/ASN1EncodableVector;)V

    const-string v0, "DER"

    invoke-virtual {v1, v0}, Lorg/spongycastle/asn1/DERSequence;->getEncoded(Ljava/lang/String;)[B
    :try_end_3a
    .catch Ljava/io/IOException; {:try_start_0 .. :try_end_3a} :catch_3c

    move-result-object v0

    return-object v0

    .line 57
    :catch_3c
    move-exception v0

    new-instance v0, Ljava/lang/RuntimeException;

    const-string v1, "Error encoding IESParameters"

    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 64
    invoke-virtual {p0, p1}, Lorg/spongycastle/jcajce/provider/asymmetric/ies/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 66
    :cond_e
    invoke-virtual {p0}, Lorg/spongycastle/jcajce/provider/asymmetric/ies/AlgorithmParametersSpi;->engineGetEncoded()[B

    move-result-object v0

    .line 69
    :goto_12
    return-object v0

    :cond_13
    const/4 v0, 0x0

    goto :goto_12
.end method

.method protected engineGetParameterSpec(Ljava/lang/Class;)Ljava/security/spec/AlgorithmParameterSpec;
    .registers 4

    .prologue
    .line 29
    if-nez p1, :cond_a

    .line 31
    new-instance v0, Ljava/lang/NullPointerException;

    const-string v1, "argument to getParameterSpec must not be null"

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

    throw v0

    .line 34
    :cond_a
    invoke-virtual {p0, p1}, Lorg/spongycastle/jcajce/provider/asymmetric/ies/AlgorithmParametersSpi;->localEngineGetParameterSpec(Ljava/lang/Class;)Ljava/security/spec/AlgorithmParameterSpec;

    move-result-object v0

    return-object v0
.end method

.method protected engineInit(Ljava/security/spec/AlgorithmParameterSpec;)V
    .registers 4

    .prologue
    .line 88
    instance-of v0, p1, Lorg/spongycastle/jce/spec/IESParameterSpec;

    if-nez v0, :cond_c

    .line 90
    new-instance v0, Ljava/security/spec/InvalidParameterSpecException;

    const-string v1, "IESParameterSpec required to initialise a IES algorithm parameters object"

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

    throw v0

    .line 93
    :cond_c
    check-cast p1, Lorg/spongycastle/jce/spec/IESParameterSpec;

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

    .line 94
    return-void
.end method

.method protected engineInit([B)V
    .registers 7

    .prologue
    .line 102
    :try_start_0
    invoke-static {p1}, Lorg/spongycastle/asn1/ASN1Primitive;->fromByteArray([B)Lorg/spongycastle/asn1/ASN1Primitive;

    move-result-object v0

    check-cast v0, Lorg/spongycastle/asn1/ASN1Sequence;

    .line 104
    new-instance v2, Lorg/spongycastle/jce/spec/IESParameterSpec;

    const/4 v1, 0x0

    .line 105
    invoke-virtual {v0, v1}, Lorg/spongycastle/asn1/ASN1Sequence;->getObjectAt(I)Lorg/spongycastle/asn1/ASN1Encodable;

    move-result-object v1

    check-cast v1, Lorg/spongycastle/asn1/ASN1OctetString;

    invoke-virtual {v1}, Lorg/spongycastle/asn1/ASN1OctetString;->getOctets()[B

    move-result-object v3

    const/4 v1, 0x0

    .line 106
    invoke-virtual {v0, v1}, Lorg/spongycastle/asn1/ASN1Sequence;->getObjectAt(I)Lorg/spongycastle/asn1/ASN1Encodable;

    move-result-object v1

    check-cast v1, Lorg/spongycastle/asn1/ASN1OctetString;

    invoke-virtual {v1}, Lorg/spongycastle/asn1/ASN1OctetString;->getOctets()[B

    move-result-object v1

    const/4 v4, 0x0

    .line 107
    invoke-virtual {v0, v4}, 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

    invoke-virtual {v0}, Ljava/math/BigInteger;->intValue()I

    move-result v0

    invoke-direct {v2, v3, v1, v0}, Lorg/spongycastle/jce/spec/IESParameterSpec;-><init>([B[BI)V

    iput-object v2, p0, Lorg/spongycastle/jcajce/provider/asymmetric/ies/AlgorithmParametersSpi;->currentSpec:Lorg/spongycastle/jce/spec/IESParameterSpec;
    :try_end_32
    .catch Ljava/lang/ClassCastException; {:try_start_0 .. :try_end_32} :catch_33
    .catch Ljava/lang/ArrayIndexOutOfBoundsException; {:try_start_0 .. :try_end_32} :catch_3c

    .line 116
    return-void

    .line 111
    :catch_33
    move-exception v0

    new-instance v0, Ljava/io/IOException;

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

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

    throw v0

    .line 115
    :catch_3c
    move-exception v0

    new-instance v0, Ljava/io/IOException;

    const-string v1, "Not a valid IES 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 124
    invoke-virtual {p0, p2}, Lorg/spongycastle/jcajce/provider/asymmetric/ies/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 126
    :cond_e
    invoke-virtual {p0, p1}, Lorg/spongycastle/jcajce/provider/asymmetric/ies/AlgorithmParametersSpi;->engineInit([B)V

    return-void

    .line 130
    :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 136
    const-string v0, "IES Parameters"

    return-object v0
.end method

.method protected isASN1FormatString(Ljava/lang/String;)Z
    .registers 3

    .prologue
    .line 22
    if-eqz p1, :cond_a

    const-string v0, "ASN.1"

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

    move-result v0

    if-eqz v0, :cond_c

    :cond_a
    const/4 v0, 0x1

    :goto_b
    return v0

    :cond_c
    const/4 v0, 0x0

    goto :goto_b
.end method

.method protected localEngineGetParameterSpec(Ljava/lang/Class;)Ljava/security/spec/AlgorithmParameterSpec;
    .registers 4

    .prologue
    .line 76
    const-class v0, Lorg/spongycastle/jce/spec/IESParameterSpec;

    if-eq p1, v0, :cond_8

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

    if-ne p1, v0, :cond_b

    .line 78
    :cond_8
    iget-object v0, p0, Lorg/spongycastle/jcajce/provider/asymmetric/ies/AlgorithmParametersSpi;->currentSpec:Lorg/spongycastle/jce/spec/IESParameterSpec;

    return-object v0

    .line 81
    :cond_b
    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