.class Lcom/ea/nimble/Encryptor;
.super Ljava/lang/Object;
.source "SourceFile"


# static fields
.field private static ENCRYPTION_KEY_LENGTH:I = 0x100

.field private static ENCRYPTION_KEY_ROUND:I = 0x3e5

.field private static final ENCRYPTOR_VERSION_1:[B

.field private static final ENCRYPTOR_VERSION_2:[B


# direct methods
.method static constructor <clinit>()V
    .locals 2

    const/4 v0, 0x4

    new-array v1, v0, [B

    fill-array-data v1, :array_0

    sput-object v1, Lcom/ea/nimble/Encryptor;->ENCRYPTOR_VERSION_1:[B

    new-array v0, v0, [B

    fill-array-data v0, :array_1

    sput-object v0, Lcom/ea/nimble/Encryptor;->ENCRYPTOR_VERSION_2:[B

    return-void

    :array_0
    .array-data 1
        0x4et
        0x45t
        0x56t
        0x31t
    .end array-data

    :array_1
    .array-data 1
        0x4et
        0x45t
        0x56t
        0x32t
    .end array-data
.end method

.method public constructor <init>()V
    .locals 0

    .line 31
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    return-void
.end method

.method private decryptLegacyInputStream(Ljava/io/InputStream;)Ljava/io/ObjectInputStream;
    .locals 8
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;,
            Ljava/security/GeneralSecurityException;
        }
    .end annotation

    .line 165
    invoke-static {}, Lcom/ea/nimble/ApplicationEnvironment;->getComponent()Lcom/ea/nimble/IApplicationEnvironment;

    move-result-object v0

    .line 166
    invoke-interface {v0}, Lcom/ea/nimble/IApplicationEnvironment;->getApplicationBundleId()Ljava/lang/String;

    move-result-object v0

    const-string v1, "02:00:00:00:00:00"

    .line 170
    invoke-virtual {v1}, Ljava/lang/String;->getBytes()[B

    move-result-object v1

    const/16 v2, 0x8

    new-array v3, v2, [B

    const/4 v4, 0x0

    move v5, v4

    :goto_0
    if-ge v4, v2, :cond_1

    add-int/lit8 v6, v5, 0x1

    .line 174
    rem-int/lit8 v7, v6, 0x3

    if-nez v7, :cond_0

    move v5, v6

    .line 178
    :cond_0
    aget-byte v6, v1, v5

    aput-byte v6, v3, v4

    add-int/lit8 v4, v4, 0x1

    add-int/lit8 v5, v5, 0x1

    goto :goto_0

    :cond_1
    const-string v1, "PBEWithMD5AndDES"

    .line 180
    invoke-static {v1}, Ljavax/crypto/SecretKeyFactory;->getInstance(Ljava/lang/String;)Ljavax/crypto/SecretKeyFactory;

    move-result-object v2

    .line 181
    new-instance v4, Ljavax/crypto/spec/PBEKeySpec;

    invoke-virtual {v0}, Ljava/lang/String;->toCharArray()[C

    move-result-object v0

    sget v5, Lcom/ea/nimble/Encryptor;->ENCRYPTION_KEY_ROUND:I

    sget v6, Lcom/ea/nimble/Encryptor;->ENCRYPTION_KEY_LENGTH:I

    invoke-direct {v4, v0, v3, v5, v6}, Ljavax/crypto/spec/PBEKeySpec;-><init>([C[BII)V

    .line 182
    invoke-virtual {v2, v4}, Ljavax/crypto/SecretKeyFactory;->generateSecret(Ljava/security/spec/KeySpec;)Ljavax/crypto/SecretKey;

    move-result-object v0

    .line 183
    new-instance v2, Ljavax/crypto/spec/PBEParameterSpec;

    sget v4, Lcom/ea/nimble/Encryptor;->ENCRYPTION_KEY_ROUND:I

    invoke-direct {v2, v3, v4}, Ljavax/crypto/spec/PBEParameterSpec;-><init>([BI)V

    .line 185
    invoke-static {v1}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v1

    const/4 v3, 0x2

    .line 186
    invoke-virtual {v1, v3, v0, v2}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V

    .line 188
    new-instance v0, Ljava/io/ObjectInputStream;

    new-instance v2, Ljavax/crypto/CipherInputStream;

    invoke-direct {v2, p1, v1}, Ljavax/crypto/CipherInputStream;-><init>(Ljava/io/InputStream;Ljavax/crypto/Cipher;)V

    invoke-direct {v0, v2}, Ljava/io/ObjectInputStream;-><init>(Ljava/io/InputStream;)V

    return-object v0
.end method

.method private decryptV1InputStream(Ljava/io/InputStream;)Ljava/io/ObjectInputStream;
    .locals 5
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;,
            Ljava/security/GeneralSecurityException;
        }
    .end annotation

    sget-object v0, Lcom/ea/nimble/Encryptor;->ENCRYPTOR_VERSION_1:[B

    .line 135
    array-length v1, v0

    .line 136
    invoke-virtual {p1, v1}, Ljava/io/InputStream;->mark(I)V

    .line 137
    new-array v2, v1, [B

    const/4 v3, 0x0

    .line 138
    invoke-virtual {p1, v2, v3, v1}, Ljava/io/InputStream;->read([BII)I

    move-result v4

    if-lt v4, v1, :cond_1

    .line 139
    invoke-static {v0, v2}, Ljava/util/Arrays;->equals([B[B)Z

    move-result v0

    if-nez v0, :cond_0

    goto :goto_0

    .line 147
    :cond_0
    new-instance v0, Ljava/io/ObjectInputStream;

    invoke-direct {v0, p1}, Ljava/io/ObjectInputStream;-><init>(Ljava/io/InputStream;)V

    .line 148
    invoke-virtual {v0}, Ljava/io/ObjectInputStream;->readInt()I

    move-result v1

    .line 149
    new-array v2, v1, [B

    .line 150
    invoke-virtual {v0, v2, v3, v1}, Ljava/io/ObjectInputStream;->read([BII)I

    .line 151
    invoke-virtual {v0}, Ljava/io/ObjectInputStream;->readInt()I

    move-result v1

    .line 152
    new-array v4, v1, [B

    .line 153
    invoke-virtual {v0, v4, v3, v1}, Ljava/io/ObjectInputStream;->read([BII)I

    .line 156
    invoke-direct {p0, v2}, Lcom/ea/nimble/Encryptor;->getKeyV1([B)Ljavax/crypto/SecretKey;

    move-result-object v0

    const-string v1, "AES/CBC/PKCS5Padding"

    .line 157
    invoke-static {v1}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v1

    .line 158
    new-instance v2, Ljavax/crypto/spec/IvParameterSpec;

    invoke-direct {v2, v4}, Ljavax/crypto/spec/IvParameterSpec;-><init>([B)V

    const/4 v3, 0x2

    invoke-virtual {v1, v3, v0, v2}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V

    .line 160
    new-instance v0, Ljava/io/ObjectInputStream;

    new-instance v2, Ljavax/crypto/CipherInputStream;

    invoke-direct {v2, p1, v1}, Ljavax/crypto/CipherInputStream;-><init>(Ljava/io/InputStream;Ljavax/crypto/Cipher;)V

    invoke-direct {v0, v2}, Ljava/io/ObjectInputStream;-><init>(Ljava/io/InputStream;)V

    return-object v0

    .line 142
    :cond_1
    :goto_0
    invoke-virtual {p1}, Ljava/io/InputStream;->reset()V

    .line 143
    invoke-direct {p0, p1}, Lcom/ea/nimble/Encryptor;->decryptLegacyInputStream(Ljava/io/InputStream;)Ljava/io/ObjectInputStream;

    move-result-object p1

    return-object p1
.end method

.method private getKeyV1([B)Ljavax/crypto/SecretKey;
    .locals 5
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/security/GeneralSecurityException;
        }
    .end annotation

    .line 42
    :try_start_0
    invoke-static {}, Lcom/ea/nimble/ApplicationEnvironment;->getComponent()Lcom/ea/nimble/IApplicationEnvironment;

    move-result-object v0

    invoke-interface {v0}, Lcom/ea/nimble/IApplicationEnvironment;->getApplicationBundleId()Ljava/lang/String;

    move-result-object v0

    const-string v1, "PBKDF2WithHmacSHA1"

    .line 44
    invoke-static {v1}, Ljavax/crypto/SecretKeyFactory;->getInstance(Ljava/lang/String;)Ljavax/crypto/SecretKeyFactory;

    move-result-object v1

    .line 45
    new-instance v2, Ljavax/crypto/spec/PBEKeySpec;

    invoke-virtual {v0}, Ljava/lang/String;->toCharArray()[C

    move-result-object v0

    sget v3, Lcom/ea/nimble/Encryptor;->ENCRYPTION_KEY_ROUND:I

    sget v4, Lcom/ea/nimble/Encryptor;->ENCRYPTION_KEY_LENGTH:I

    invoke-direct {v2, v0, p1, v3, v4}, Ljavax/crypto/spec/PBEKeySpec;-><init>([C[BII)V

    .line 46
    invoke-virtual {v1, v2}, Ljavax/crypto/SecretKeyFactory;->generateSecret(Ljava/security/spec/KeySpec;)Ljavax/crypto/SecretKey;

    move-result-object p1

    .line 47
    new-instance v0, Ljavax/crypto/spec/SecretKeySpec;

    invoke-interface {p1}, Ljava/security/Key;->getEncoded()[B

    move-result-object p1

    const-string v1, "AES"

    invoke-direct {v0, p1, v1}, Ljavax/crypto/spec/SecretKeySpec;-><init>([BLjava/lang/String;)V
    :try_end_0
    .catch Ljava/security/GeneralSecurityException; {:try_start_0 .. :try_end_0} :catch_0

    return-object v0

    :catch_0
    move-exception p1

    .line 53
    new-instance v0, Ljava/lang/StringBuilder;

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

    const-string v1, "Can\'t initialize Encryptor: "

    invoke-virtual {v0, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

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

    move-result-object v1

    invoke-virtual {v0, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    invoke-virtual {v0}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v0

    const/4 v1, 0x0

    new-array v1, v1, [Ljava/lang/Object;

    const/4 v2, 0x0

    invoke-static {v2, v0, v1}, Lcom/ea/nimble/Log$Helper;->LOGFS(Ljava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)V

    .line 54
    throw p1
.end method

.method private getKeyV2()Ljavax/crypto/SecretKey;
    .locals 6
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/security/GeneralSecurityException;
        }
    .end annotation

    .line 62
    :try_start_0
    invoke-static {}, Lcom/ea/nimble/ApplicationEnvironment;->getComponent()Lcom/ea/nimble/IApplicationEnvironment;

    move-result-object v0

    .line 63
    invoke-interface {v0}, Lcom/ea/nimble/IApplicationEnvironment;->getAndroidId()Ljava/lang/String;

    move-result-object v1

    .line 64
    invoke-interface {v0}, Lcom/ea/nimble/IApplicationEnvironment;->getApplicationBundleId()Ljava/lang/String;

    move-result-object v0

    invoke-static {v0}, Lcom/ea/nimble/Utility;->SHA256Hash(Ljava/lang/String;)[B

    move-result-object v0

    const-string v2, "PBKDF2WithHmacSHA1"

    .line 66
    invoke-static {v2}, Ljavax/crypto/SecretKeyFactory;->getInstance(Ljava/lang/String;)Ljavax/crypto/SecretKeyFactory;

    move-result-object v2

    .line 67
    new-instance v3, Ljavax/crypto/spec/PBEKeySpec;

    invoke-virtual {v1}, Ljava/lang/String;->toCharArray()[C

    move-result-object v1

    sget v4, Lcom/ea/nimble/Encryptor;->ENCRYPTION_KEY_ROUND:I

    sget v5, Lcom/ea/nimble/Encryptor;->ENCRYPTION_KEY_LENGTH:I

    invoke-direct {v3, v1, v0, v4, v5}, Ljavax/crypto/spec/PBEKeySpec;-><init>([C[BII)V

    .line 68
    invoke-virtual {v2, v3}, Ljavax/crypto/SecretKeyFactory;->generateSecret(Ljava/security/spec/KeySpec;)Ljavax/crypto/SecretKey;

    move-result-object v0

    .line 69
    new-instance v1, Ljavax/crypto/spec/SecretKeySpec;

    invoke-interface {v0}, Ljava/security/Key;->getEncoded()[B

    move-result-object v0

    const-string v2, "AES"

    invoke-direct {v1, v0, v2}, Ljavax/crypto/spec/SecretKeySpec;-><init>([BLjava/lang/String;)V
    :try_end_0
    .catch Ljava/security/GeneralSecurityException; {:try_start_0 .. :try_end_0} :catch_0

    return-object v1

    :catch_0
    move-exception v0

    .line 73
    new-instance v1, Ljava/lang/StringBuilder;

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

    const-string v2, "Can\'t initialize Encryptor: "

    invoke-virtual {v1, v2}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

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

    move-result-object v2

    invoke-virtual {v1, v2}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

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

    move-result-object v1

    const/4 v2, 0x0

    new-array v2, v2, [Ljava/lang/Object;

    const/4 v3, 0x0

    invoke-static {v3, v1, v2}, Lcom/ea/nimble/Log$Helper;->LOGFS(Ljava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)V

    .line 74
    throw v0
.end method


# virtual methods
.method public decryptInputStream(Ljava/io/InputStream;)Ljava/io/ObjectInputStream;
    .locals 5
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;,
            Ljava/security/GeneralSecurityException;
        }
    .end annotation

    .line 101
    invoke-virtual {p1}, Ljava/io/InputStream;->markSupported()Z

    move-result v0

    const/4 v1, 0x0

    if-nez v0, :cond_0

    const-string v0, "decryptInputStream() : InputStream doesn\'t support stream mark()"

    new-array v2, v1, [Ljava/lang/Object;

    const-string v3, "Encryptor"

    .line 103
    invoke-static {v3, v0, v2}, Lcom/ea/nimble/Log$Helper;->LOGWS(Ljava/lang/String;Ljava/lang/String;[Ljava/lang/Object;)V

    :cond_0
    sget-object v0, Lcom/ea/nimble/Encryptor;->ENCRYPTOR_VERSION_2:[B

    .line 107
    array-length v2, v0

    .line 108
    invoke-virtual {p1, v2}, Ljava/io/InputStream;->mark(I)V

    .line 109
    new-array v3, v2, [B

    .line 110
    invoke-virtual {p1, v3, v1, v2}, Ljava/io/InputStream;->read([BII)I

    move-result v4

    if-lt v4, v2, :cond_2

    .line 111
    invoke-static {v0, v3}, Ljava/util/Arrays;->equals([B[B)Z

    move-result v0

    if-nez v0, :cond_1

    goto :goto_0

    .line 119
    :cond_1
    new-instance v0, Ljava/io/ObjectInputStream;

    invoke-direct {v0, p1}, Ljava/io/ObjectInputStream;-><init>(Ljava/io/InputStream;)V

    .line 120
    invoke-virtual {v0}, Ljava/io/ObjectInputStream;->readInt()I

    move-result v2

    .line 121
    new-array v3, v2, [B

    .line 122
    invoke-virtual {v0, v3, v1, v2}, Ljava/io/ObjectInputStream;->read([BII)I

    .line 125
    invoke-direct {p0}, Lcom/ea/nimble/Encryptor;->getKeyV2()Ljavax/crypto/SecretKey;

    move-result-object v0

    const-string v1, "AES/CBC/PKCS5Padding"

    .line 126
    invoke-static {v1}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v1

    .line 127
    new-instance v2, Ljavax/crypto/spec/IvParameterSpec;

    invoke-direct {v2, v3}, Ljavax/crypto/spec/IvParameterSpec;-><init>([B)V

    const/4 v3, 0x2

    invoke-virtual {v1, v3, v0, v2}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V

    .line 129
    new-instance v0, Ljava/io/ObjectInputStream;

    new-instance v2, Ljavax/crypto/CipherInputStream;

    invoke-direct {v2, p1, v1}, Ljavax/crypto/CipherInputStream;-><init>(Ljava/io/InputStream;Ljavax/crypto/Cipher;)V

    invoke-direct {v0, v2}, Ljava/io/ObjectInputStream;-><init>(Ljava/io/InputStream;)V

    return-object v0

    .line 114
    :cond_2
    :goto_0
    invoke-virtual {p1}, Ljava/io/InputStream;->reset()V

    .line 115
    invoke-direct {p0, p1}, Lcom/ea/nimble/Encryptor;->decryptV1InputStream(Ljava/io/InputStream;)Ljava/io/ObjectInputStream;

    move-result-object p1

    return-object p1
.end method

.method public encryptOutputStream(Ljava/io/OutputStream;)Ljava/io/ObjectOutputStream;
    .locals 5
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;,
            Ljava/security/GeneralSecurityException;
        }
    .end annotation

    .line 81
    invoke-direct {p0}, Lcom/ea/nimble/Encryptor;->getKeyV2()Ljavax/crypto/SecretKey;

    move-result-object v0

    const-string v1, "AES/CBC/PKCS5Padding"

    .line 82
    invoke-static {v1}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v1

    const/4 v2, 0x1

    .line 83
    invoke-virtual {v1, v2, v0}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;)V

    sget-object v0, Lcom/ea/nimble/Encryptor;->ENCRYPTOR_VERSION_2:[B

    .line 86
    array-length v2, v0

    const/4 v3, 0x0

    invoke-virtual {p1, v0, v3, v2}, Ljava/io/OutputStream;->write([BII)V

    .line 88
    invoke-virtual {v1}, Ljavax/crypto/Cipher;->getParameters()Ljava/security/AlgorithmParameters;

    move-result-object v0

    const-class v2, Ljavax/crypto/spec/IvParameterSpec;

    invoke-virtual {v0, v2}, Ljava/security/AlgorithmParameters;->getParameterSpec(Ljava/lang/Class;)Ljava/security/spec/AlgorithmParameterSpec;

    move-result-object v0

    check-cast v0, Ljavax/crypto/spec/IvParameterSpec;

    invoke-virtual {v0}, Ljavax/crypto/spec/IvParameterSpec;->getIV()[B

    move-result-object v0

    .line 91
    new-instance v2, Ljava/io/ObjectOutputStream;

    invoke-direct {v2, p1}, Ljava/io/ObjectOutputStream;-><init>(Ljava/io/OutputStream;)V

    .line 92
    array-length v4, v0

    invoke-virtual {v2, v4}, Ljava/io/ObjectOutputStream;->writeInt(I)V

    .line 93
    array-length v4, v0

    invoke-virtual {v2, v0, v3, v4}, Ljava/io/ObjectOutputStream;->write([BII)V

    .line 94
    invoke-virtual {v2}, Ljava/io/ObjectOutputStream;->flush()V

    .line 96
    new-instance v0, Ljava/io/ObjectOutputStream;

    new-instance v2, Ljavax/crypto/CipherOutputStream;

    invoke-direct {v2, p1, v1}, Ljavax/crypto/CipherOutputStream;-><init>(Ljava/io/OutputStream;Ljavax/crypto/Cipher;)V

    invoke-direct {v0, v2}, Ljava/io/ObjectOutputStream;-><init>(Ljava/io/OutputStream;)V

    return-object v0
.end method