McElieceKobaraImaiCipherSpi.smali

.class public Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;
.super Lorg/spongycastle/pqc/jcajce/provider/util/AsymmetricHybridCipher;
.source "McElieceKobaraImaiCipherSpi.java"

# interfaces
.implements Lorg/spongycastle/asn1/pkcs/PKCSObjectIdentifiers;
.implements Lorg/spongycastle/asn1/x509/X509ObjectIdentifiers;


# instance fields
.field private buf:Ljava/io/ByteArrayOutputStream;

.field private cipher:Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;

.field private digest:Lorg/spongycastle/crypto/Digest;


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

    .prologue
    .line 46
    invoke-direct {p0}, Lorg/spongycastle/pqc/jcajce/provider/util/AsymmetricHybridCipher;-><init>()V

    .line 42
    new-instance v0, Ljava/io/ByteArrayOutputStream;

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

    iput-object v0, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->buf:Ljava/io/ByteArrayOutputStream;

    .line 47
    new-instance v0, Ljava/io/ByteArrayOutputStream;

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

    iput-object v0, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->buf:Ljava/io/ByteArrayOutputStream;

    .line 48
    return-void
.end method

.method protected constructor <init>(Lorg/spongycastle/crypto/Digest;Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;)V
    .registers 4

    .prologue
    .line 51
    invoke-direct {p0}, Lorg/spongycastle/pqc/jcajce/provider/util/AsymmetricHybridCipher;-><init>()V

    .line 42
    new-instance v0, Ljava/io/ByteArrayOutputStream;

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

    iput-object v0, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->buf:Ljava/io/ByteArrayOutputStream;

    .line 52
    iput-object p1, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->digest:Lorg/spongycastle/crypto/Digest;

    .line 53
    iput-object p2, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->cipher:Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;

    .line 54
    new-instance v0, Ljava/io/ByteArrayOutputStream;

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

    iput-object v0, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->buf:Ljava/io/ByteArrayOutputStream;

    .line 55
    return-void
.end method

.method private pad()[B
    .registers 3

    .prologue
    .line 191
    iget-object v0, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->buf:Ljava/io/ByteArrayOutputStream;

    const/4 v1, 0x1

    invoke-virtual {v0, v1}, Ljava/io/ByteArrayOutputStream;->write(I)V

    .line 192
    iget-object v0, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->buf:Ljava/io/ByteArrayOutputStream;

    invoke-virtual {v0}, Ljava/io/ByteArrayOutputStream;->toByteArray()[B

    move-result-object v0

    .line 193
    iget-object v1, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->buf:Ljava/io/ByteArrayOutputStream;

    invoke-virtual {v1}, Ljava/io/ByteArrayOutputStream;->reset()V

    .line 194
    return-object v0
.end method

.method private unpad([B)[B
    .registers 6

    .prologue
    const/4 v3, 0x0

    .line 209
    array-length v0, p1

    add-int/lit8 v0, v0, -0x1

    :goto_4
    if-ltz v0, :cond_d

    aget-byte v1, p1, v0

    if-nez v1, :cond_d

    add-int/lit8 v0, v0, -0x1

    goto :goto_4

    .line 215
    :cond_d
    aget-byte v1, p1, v0

    const/4 v2, 0x1

    if-eq v1, v2, :cond_1a

    .line 217
    new-instance v0, Ljavax/crypto/BadPaddingException;

    const-string v1, "invalid ciphertext"

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

    throw v0

    .line 221
    :cond_1a
    new-array v1, v0, [B

    .line 222
    invoke-static {p1, v3, v1, v3, v0}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 223
    return-object v1
.end method


# virtual methods
.method protected decryptOutputSize(I)I
    .registers 3

    .prologue
    .line 127
    const/4 v0, 0x0

    return v0
.end method

.method public doFinal([BII)[B
    .registers 6

    .prologue
    .line 88
    invoke-virtual {p0, p1, p2, p3}, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->update([BII)[B

    .line 89
    iget v0, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->opMode:I

    const/4 v1, 0x1

    if-ne v0, v1, :cond_19

    .line 94
    :try_start_8
    iget-object v0, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->cipher:Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;

    invoke-direct {p0}, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->pad()[B

    move-result-object v1

    invoke-virtual {v0, v1}, Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;->messageEncrypt([B)[B
    :try_end_11
    .catch Ljava/lang/Exception; {:try_start_8 .. :try_end_11} :catch_13

    move-result-object v0

    .line 117
    :goto_12
    return-object v0

    .line 98
    :catch_13
    move-exception v0

    invoke-virtual {v0}, Ljava/lang/Exception;->printStackTrace()V

    .line 117
    :cond_17
    :goto_17
    const/4 v0, 0x0

    goto :goto_12

    .line 102
    :cond_19
    iget v0, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->opMode:I

    const/4 v1, 0x2

    if-ne v0, v1, :cond_17

    .line 104
    iget-object v0, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->buf:Ljava/io/ByteArrayOutputStream;

    invoke-virtual {v0}, Ljava/io/ByteArrayOutputStream;->toByteArray()[B

    move-result-object v0

    .line 105
    iget-object v1, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->buf:Ljava/io/ByteArrayOutputStream;

    invoke-virtual {v1}, Ljava/io/ByteArrayOutputStream;->reset()V

    .line 109
    :try_start_29
    iget-object v1, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->cipher:Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;

    invoke-virtual {v1, v0}, Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;->messageDecrypt([B)[B

    move-result-object v0

    invoke-direct {p0, v0}, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->unpad([B)[B
    :try_end_32
    .catch Ljava/lang/Exception; {:try_start_29 .. :try_end_32} :catch_34

    move-result-object v0

    goto :goto_12

    .line 113
    :catch_34
    move-exception v0

    invoke-virtual {v0}, Ljava/lang/Exception;->printStackTrace()V

    goto :goto_17
.end method

.method protected encryptOutputSize(I)I
    .registers 3

    .prologue
    .line 122
    const/4 v0, 0x0

    return v0
.end method

.method public getKeySize(Ljava/security/Key;)I
    .registers 4

    .prologue
    .line 166
    instance-of v0, p1, Ljava/security/PublicKey;

    if-eqz v0, :cond_13

    .line 168
    check-cast p1, Ljava/security/PublicKey;

    invoke-static {p1}, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceCCA2KeysToParams;->generatePublicKeyParameter(Ljava/security/PublicKey;)Lorg/spongycastle/crypto/params/AsymmetricKeyParameter;

    move-result-object v0

    check-cast v0, Lorg/spongycastle/pqc/crypto/mceliece/McElieceCCA2KeyParameters;

    .line 169
    iget-object v1, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->cipher:Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;

    invoke-virtual {v1, v0}, Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;->getKeySize(Lorg/spongycastle/pqc/crypto/mceliece/McElieceCCA2KeyParameters;)I

    move-result v0

    .line 174
    :goto_12
    return v0

    .line 171
    :cond_13
    instance-of v0, p1, Ljava/security/PrivateKey;

    if-eqz v0, :cond_26

    .line 173
    check-cast p1, Ljava/security/PrivateKey;

    invoke-static {p1}, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceCCA2KeysToParams;->generatePrivateKeyParameter(Ljava/security/PrivateKey;)Lorg/spongycastle/crypto/params/AsymmetricKeyParameter;

    move-result-object v0

    check-cast v0, Lorg/spongycastle/pqc/crypto/mceliece/McElieceCCA2KeyParameters;

    .line 174
    iget-object v1, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->cipher:Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;

    invoke-virtual {v1, v0}, Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;->getKeySize(Lorg/spongycastle/pqc/crypto/mceliece/McElieceCCA2KeyParameters;)I

    move-result v0

    goto :goto_12

    .line 178
    :cond_26
    new-instance v0, Ljava/security/InvalidKeyException;

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

    throw v0
.end method

.method public getName()Ljava/lang/String;
    .registers 2

    .prologue
    .line 159
    const-string v0, "McElieceKobaraImaiCipher"

    return-object v0
.end method

.method protected initCipherDecrypt(Ljava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V
    .registers 6

    .prologue
    .line 149
    iget-object v0, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->buf:Ljava/io/ByteArrayOutputStream;

    invoke-virtual {v0}, Ljava/io/ByteArrayOutputStream;->reset()V

    .line 151
    check-cast p1, Ljava/security/PrivateKey;

    invoke-static {p1}, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceCCA2KeysToParams;->generatePrivateKeyParameter(Ljava/security/PrivateKey;)Lorg/spongycastle/crypto/params/AsymmetricKeyParameter;

    move-result-object v0

    .line 153
    iget-object v1, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->digest:Lorg/spongycastle/crypto/Digest;

    invoke-interface {v1}, Lorg/spongycastle/crypto/Digest;->reset()V

    .line 154
    iget-object v1, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->cipher:Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;

    const/4 v2, 0x0

    invoke-virtual {v1, v2, v0}, Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;->init(ZLorg/spongycastle/crypto/CipherParameters;)V

    .line 155
    return-void
.end method

.method protected initCipherEncrypt(Ljava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;Ljava/security/SecureRandom;)V
    .registers 7

    .prologue
    .line 136
    iget-object v0, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->buf:Ljava/io/ByteArrayOutputStream;

    invoke-virtual {v0}, Ljava/io/ByteArrayOutputStream;->reset()V

    .line 138
    check-cast p1, Ljava/security/PublicKey;

    invoke-static {p1}, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceCCA2KeysToParams;->generatePublicKeyParameter(Ljava/security/PublicKey;)Lorg/spongycastle/crypto/params/AsymmetricKeyParameter;

    move-result-object v0

    .line 140
    new-instance v1, Lorg/spongycastle/crypto/params/ParametersWithRandom;

    invoke-direct {v1, v0, p3}, Lorg/spongycastle/crypto/params/ParametersWithRandom;-><init>(Lorg/spongycastle/crypto/CipherParameters;Ljava/security/SecureRandom;)V

    .line 141
    iget-object v0, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->digest:Lorg/spongycastle/crypto/Digest;

    invoke-interface {v0}, Lorg/spongycastle/crypto/Digest;->reset()V

    .line 142
    iget-object v0, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->cipher:Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;

    const/4 v2, 0x1

    invoke-virtual {v0, v2, v1}, Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;->init(ZLorg/spongycastle/crypto/CipherParameters;)V

    .line 143
    return-void
.end method

.method public messageDecrypt()[B
    .registers 4

    .prologue
    .line 246
    const/4 v0, 0x0

    .line 247
    iget-object v1, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->buf:Ljava/io/ByteArrayOutputStream;

    invoke-virtual {v1}, Ljava/io/ByteArrayOutputStream;->toByteArray()[B

    move-result-object v1

    .line 248
    iget-object v2, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->buf:Ljava/io/ByteArrayOutputStream;

    invoke-virtual {v2}, Ljava/io/ByteArrayOutputStream;->reset()V

    .line 251
    :try_start_c
    iget-object v2, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->cipher:Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;

    invoke-virtual {v2, v1}, Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;->messageDecrypt([B)[B

    move-result-object v1

    invoke-direct {p0, v1}, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->unpad([B)[B
    :try_end_15
    .catch Ljava/lang/Exception; {:try_start_c .. :try_end_15} :catch_17

    move-result-object v0

    .line 257
    :goto_16
    return-object v0

    .line 255
    :catch_17
    move-exception v1

    invoke-virtual {v1}, Ljava/lang/Exception;->printStackTrace()V

    goto :goto_16
.end method

.method public messageEncrypt()[B
    .registers 4

    .prologue
    .line 230
    const/4 v0, 0x0

    .line 233
    :try_start_1
    iget-object v1, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->cipher:Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;

    invoke-direct {p0}, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->pad()[B

    move-result-object v2

    invoke-virtual {v1, v2}, Lorg/spongycastle/pqc/crypto/mceliece/McElieceKobaraImaiCipher;->messageEncrypt([B)[B
    :try_end_a
    .catch Ljava/lang/Exception; {:try_start_1 .. :try_end_a} :catch_c

    move-result-object v0

    .line 239
    :goto_b
    return-object v0

    .line 237
    :catch_c
    move-exception v1

    invoke-virtual {v1}, Ljava/lang/Exception;->printStackTrace()V

    goto :goto_b
.end method

.method public update([BII)[B
    .registers 5

    .prologue
    .line 67
    iget-object v0, p0, Lorg/spongycastle/pqc/jcajce/provider/mceliece/McElieceKobaraImaiCipherSpi;->buf:Ljava/io/ByteArrayOutputStream;

    invoke-virtual {v0, p1, p2, p3}, Ljava/io/ByteArrayOutputStream;->write([BII)V

    .line 68
    const/4 v0, 0x0

    new-array v0, v0, [B

    return-object v0
.end method