EncryptMgr.smali

.class public Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;
.super Ljava/lang/Object;


# static fields
.field private static INSTANCE:Lcom/cmcm/xiaobao/phone/commons/utils/Singleton; = null
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "Lcom/cmcm/xiaobao/phone/commons/utils/Singleton",
            "<",
            "Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;",
            ">;"
        }
    .end annotation
.end field

.field private static final KEY:Ljava/lang/String; = "XiaoBaoSpeaker2017ByCheetahMobilePantherStudio"


# instance fields
.field private mCurSpeakerSn:Ljava/lang/String;

.field private mDecryptCipher:Ljavax/crypto/Cipher;

.field private mEncryptCipher:Ljavax/crypto/Cipher;


# direct methods
.method static constructor <clinit>()V
    .registers 1

    new-instance v0, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr$1;

    invoke-direct {v0}, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr$1;-><init>()V

    sput-object v0, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;->INSTANCE:Lcom/cmcm/xiaobao/phone/commons/utils/Singleton;

    return-void
.end method

.method private constructor <init>()V
    .registers 1

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

    return-void
.end method

.method synthetic constructor <init>(Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr$1;)V
    .registers 2

    invoke-direct {p0}, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;-><init>()V

    return-void
.end method

.method private findFirstNumIndex(Ljava/lang/String;)I
    .registers 6

    const/4 v1, 0x0

    move v0, v1

    :goto_2
    invoke-virtual {p1}, Ljava/lang/String;->length()I

    move-result v2

    if-ge v0, v2, :cond_1e

    invoke-virtual {p1, v0}, Ljava/lang/String;->charAt(I)C

    move-result v2

    const/16 v3, 0x30

    if-lt v2, v3, :cond_1f

    invoke-virtual {p1, v0}, Ljava/lang/String;->charAt(I)C

    move-result v2

    const/16 v3, 0x39

    if-gt v2, v3, :cond_1f

    invoke-virtual {p1, v0}, Ljava/lang/String;->charAt(I)C

    move-result v0

    add-int/lit8 v1, v0, -0x30

    :cond_1e
    return v1

    :cond_1f
    add-int/lit8 v0, v0, 0x1

    goto :goto_2
.end method

.method private generateKey(Ljava/lang/String;)Ljava/lang/String;
    .registers 6

    const-string/jumbo v0, "XiaoBaoSpeaker2017ByCheetahMobilePantherStudio"

    invoke-direct {p0, p1}, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;->findFirstNumIndex(Ljava/lang/String;)I

    move-result v1

    invoke-virtual {v0, v1}, Ljava/lang/String;->charAt(I)C

    move-result v0

    new-instance v1, Ljava/lang/StringBuilder;

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

    const-string/jumbo v2, "XiaoBaoSpeaker2017ByCheetahMobilePantherStudio"

    invoke-static {v0}, Ljava/lang/String;->valueOf(C)Ljava/lang/String;

    move-result-object v0

    const-string/jumbo v3, ""

    invoke-virtual {v2, v0, v3}, Ljava/lang/String;->replaceAll(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;

    move-result-object v0

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

    move-result-object v0

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

    move-result-object v0

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

    move-result-object v0

    return-object v0
.end method

.method public static getIns()Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;
    .registers 1

    sget-object v0, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;->INSTANCE:Lcom/cmcm/xiaobao/phone/commons/utils/Singleton;

    invoke-virtual {v0}, Lcom/cmcm/xiaobao/phone/commons/utils/Singleton;->get()Ljava/lang/Object;

    move-result-object v0

    check-cast v0, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;

    return-object v0
.end method

.method private setupCipher(Ljava/lang/String;)V
    .registers 6

    new-instance v0, Ljava/security/SecureRandom;

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

    :try_start_5
    new-instance v1, Ljavax/crypto/spec/DESKeySpec;

    invoke-virtual {p1}, Ljava/lang/String;->getBytes()[B

    move-result-object v2

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

    const-string/jumbo v2, "DES"

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

    move-result-object v2

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

    move-result-object v1

    const-string/jumbo v2, "DES/ECB/PKCS5Padding"

    invoke-static {v2}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v2

    iput-object v2, p0, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;->mEncryptCipher:Ljavax/crypto/Cipher;

    iget-object v2, p0, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;->mEncryptCipher:Ljavax/crypto/Cipher;

    const/4 v3, 0x1

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

    const-string/jumbo v2, "DES/ECB/PKCS5Padding"

    invoke-static {v2}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v2

    iput-object v2, p0, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;->mDecryptCipher:Ljavax/crypto/Cipher;

    iget-object v2, p0, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;->mDecryptCipher:Ljavax/crypto/Cipher;

    const/4 v3, 0x2

    invoke-virtual {v2, v3, v1, v0}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;Ljava/security/SecureRandom;)V
    :try_end_37
    .catch Ljava/lang/Exception; {:try_start_5 .. :try_end_37} :catch_38

    :goto_37
    return-void

    :catch_38
    move-exception v0

    const-string/jumbo v1, "EncryptManager"

    const-string/jumbo v2, "Encrypt Manager Update Key Failed! "

    invoke-static {v1, v2, v0}, Lcom/cmcm/xiaobao/phone/commons/log/LogUtil;->e(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Throwable;)V

    goto :goto_37
.end method


# virtual methods
.method public decrypt([B)[B
    .registers 6

    const/4 v0, 0x0

    iget-object v1, p0, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;->mDecryptCipher:Ljavax/crypto/Cipher;

    if-nez v1, :cond_6

    :goto_5
    return-object v0

    :cond_6
    :try_start_6
    iget-object v1, p0, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;->mDecryptCipher:Ljavax/crypto/Cipher;

    invoke-virtual {v1, p1}, Ljavax/crypto/Cipher;->doFinal([B)[B
    :try_end_b
    .catch Ljava/lang/Exception; {:try_start_6 .. :try_end_b} :catch_d

    move-result-object v0

    goto :goto_5

    :catch_d
    move-exception v1

    const-string/jumbo v2, "EncryptManager"

    const-string/jumbo v3, "Decrypt Data Failed! "

    invoke-static {v2, v3, v1}, Lcom/cmcm/xiaobao/phone/commons/log/LogUtil;->e(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Throwable;)V

    goto :goto_5
.end method

.method public encrypt([B)[B
    .registers 6

    const/4 v0, 0x0

    iget-object v1, p0, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;->mEncryptCipher:Ljavax/crypto/Cipher;

    if-nez v1, :cond_6

    :goto_5
    return-object v0

    :cond_6
    :try_start_6
    iget-object v1, p0, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;->mEncryptCipher:Ljavax/crypto/Cipher;

    invoke-virtual {v1, p1}, Ljavax/crypto/Cipher;->doFinal([B)[B
    :try_end_b
    .catch Ljava/lang/Exception; {:try_start_6 .. :try_end_b} :catch_d

    move-result-object v0

    goto :goto_5

    :catch_d
    move-exception v1

    const-string/jumbo v2, "EncryptManager"

    const-string/jumbo v3, "Encrypt Data Failed! "

    invoke-static {v2, v3, v1}, Lcom/cmcm/xiaobao/phone/commons/log/LogUtil;->e(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Throwable;)V

    goto :goto_5
.end method

.method public updateKey(Ljava/lang/String;)V
    .registers 6

    iget-object v0, p0, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;->mCurSpeakerSn:Ljava/lang/String;

    invoke-static {v0, p1}, Landroid/text/TextUtils;->equals(Ljava/lang/CharSequence;Ljava/lang/CharSequence;)Z

    move-result v0

    if-eqz v0, :cond_9

    :goto_8
    return-void

    :cond_9
    iput-object p1, p0, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;->mCurSpeakerSn:Ljava/lang/String;

    invoke-direct {p0, p1}, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;->generateKey(Ljava/lang/String;)Ljava/lang/String;

    move-result-object v0

    sget-boolean v1, Lcom/cmcm/xiaobao/phone/smarthome/sdk/SmartHomeSDK;->DEBUG:Z

    if-eqz v1, :cond_2d

    const-string/jumbo v1, "Socket-Encrypt"

    new-instance v2, Ljava/lang/StringBuilder;

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

    const-string/jumbo v3, "Encrypt Key: "

    invoke-virtual {v2, v3}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v2

    invoke-virtual {v2, v0}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v2

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

    move-result-object v2

    invoke-static {v1, v2}, Lcom/cmcm/xiaobao/phone/commons/log/LogUtil;->d(Ljava/lang/String;Ljava/lang/String;)V

    :cond_2d
    invoke-direct {p0, v0}, Lcom/cmcm/xiaobao/phone/smarthome/socket/encrypt/EncryptMgr;->setupCipher(Ljava/lang/String;)V

    goto :goto_8
.end method