EncryptUtil.smali

.class public Lio/rong/imlib/common/EncryptUtil;
.super Ljava/lang/Object;
.source "EncryptUtil.java"


# static fields
.field private static final TAG:Ljava/lang/String; = "EncryptUtil"

.field private static instance:Lio/rong/imlib/common/EncryptUtil;


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


# direct methods
.method static constructor <clinit>()V
    .registers 0

    return-void
.end method

.method private constructor <init>(Landroid/content/Context;)V
    .registers 5

    .line 1
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 2
    invoke-static {p1}, Lio/rong/imlib/common/SignatureUtils;->getAppSignatureSHA1NoSign(Landroid/content/Context;)Ljava/lang/String;

    move-result-object v0

    .line 3
    invoke-static {v0}, Landroid/text/TextUtils;->isEmpty(Ljava/lang/CharSequence;)Z

    move-result v1

    const/16 v2, 0x10

    if-nez v1, :cond_15

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

    move-result v1

    if-ge v1, v2, :cond_2a

    .line 4
    :cond_15
    new-instance v0, Ljava/lang/StringBuilder;

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

    invoke-direct {p0, p1}, Lio/rong/imlib/common/EncryptUtil;->getAndroidId(Landroid/content/Context;)Ljava/lang/String;

    move-result-object p1

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

    const-string p1, "#$ERDTS$D%F^Gojikbh"

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

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

    move-result-object v0

    .line 5
    :cond_2a
    invoke-direct {p0, v0}, Lio/rong/imlib/common/EncryptUtil;->SHA(Ljava/lang/String;)Ljava/lang/String;

    move-result-object p1

    if-eqz p1, :cond_38

    const/4 v0, 0x0

    .line 6
    invoke-virtual {p1, v0, v2}, Ljava/lang/String;->substring(II)Ljava/lang/String;

    move-result-object p1

    iput-object p1, p0, Lio/rong/imlib/common/EncryptUtil;->key:Ljava/lang/String;

    goto :goto_3f

    .line 7
    :cond_38
    sget-object p1, Lio/rong/imlib/common/EncryptUtil;->TAG:Ljava/lang/String;

    const-string v0, "key is null"

    invoke-static {p1, v0}, Lio/rong/common/rlog/RLog;->e(Ljava/lang/String;Ljava/lang/String;)I

    :goto_3f
    return-void
.end method

.method private SHA(Ljava/lang/String;)Ljava/lang/String;
    .registers 7

    if-eqz p1, :cond_49

    .line 1
    invoke-virtual {p1}, Ljava/lang/String;->length()I

    move-result v0

    if-lez v0, :cond_49

    :try_start_8
    const-string v0, "SHA-256"

    .line 2
    invoke-static {v0}, Ljava/security/MessageDigest;->getInstance(Ljava/lang/String;)Ljava/security/MessageDigest;

    move-result-object v0

    .line 3
    invoke-virtual {p1}, Ljava/lang/String;->getBytes()[B

    move-result-object p1

    invoke-virtual {v0, p1}, Ljava/security/MessageDigest;->update([B)V

    .line 4
    invoke-virtual {v0}, Ljava/security/MessageDigest;->digest()[B

    move-result-object p1

    .line 5
    new-instance v0, Ljava/lang/StringBuffer;

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

    const/4 v1, 0x0

    .line 6
    :goto_1f
    array-length v2, p1

    if-ge v1, v2, :cond_3c

    .line 7
    aget-byte v2, p1, v1

    and-int/lit16 v2, v2, 0xff

    invoke-static {v2}, Ljava/lang/Integer;->toHexString(I)Ljava/lang/String;

    move-result-object v2

    .line 8
    invoke-virtual {v2}, Ljava/lang/String;->length()I

    move-result v3

    const/4 v4, 0x1

    if-ne v3, v4, :cond_36

    const/16 v3, 0x30

    .line 9
    invoke-virtual {v0, v3}, Ljava/lang/StringBuffer;->append(C)Ljava/lang/StringBuffer;

    .line 10
    :cond_36
    invoke-virtual {v0, v2}, Ljava/lang/StringBuffer;->append(Ljava/lang/String;)Ljava/lang/StringBuffer;

    add-int/lit8 v1, v1, 0x1

    goto :goto_1f

    .line 11
    :cond_3c
    invoke-virtual {v0}, Ljava/lang/StringBuffer;->toString()Ljava/lang/String;

    move-result-object p1
    :try_end_40
    .catch Ljava/security/NoSuchAlgorithmException; {:try_start_8 .. :try_end_40} :catch_41

    goto :goto_4a

    :catch_41
    move-exception p1

    .line 12
    sget-object v0, Lio/rong/imlib/common/EncryptUtil;->TAG:Ljava/lang/String;

    const-string v1, "SHA"

    invoke-static {v0, v1, p1}, Lio/rong/common/rlog/RLog;->e(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Throwable;)I

    :cond_49
    const/4 p1, 0x0

    :goto_4a
    return-object p1
.end method

.method private getAndroidId(Landroid/content/Context;)Ljava/lang/String;
    .registers 3

    .line 1
    invoke-virtual {p1}, Landroid/content/Context;->getContentResolver()Landroid/content/ContentResolver;

    move-result-object p1

    const-string v0, "android_id"

    invoke-static {p1, v0}, Landroid/provider/Settings$Secure;->getString(Landroid/content/ContentResolver;Ljava/lang/String;)Ljava/lang/String;

    move-result-object p1

    return-object p1
.end method

.method public static declared-synchronized getInstance(Landroid/content/Context;)Lio/rong/imlib/common/EncryptUtil;
    .registers 3

    const-class v0, Lio/rong/imlib/common/EncryptUtil;

    monitor-enter v0

    .line 1
    :try_start_3
    sget-object v1, Lio/rong/imlib/common/EncryptUtil;->instance:Lio/rong/imlib/common/EncryptUtil;

    if-nez v1, :cond_e

    .line 2
    new-instance v1, Lio/rong/imlib/common/EncryptUtil;

    invoke-direct {v1, p0}, Lio/rong/imlib/common/EncryptUtil;-><init>(Landroid/content/Context;)V

    sput-object v1, Lio/rong/imlib/common/EncryptUtil;->instance:Lio/rong/imlib/common/EncryptUtil;

    .line 3
    :cond_e
    sget-object p0, Lio/rong/imlib/common/EncryptUtil;->instance:Lio/rong/imlib/common/EncryptUtil;
    :try_end_10
    .catchall {:try_start_3 .. :try_end_10} :catchall_12

    monitor-exit v0

    return-object p0

    :catchall_12
    move-exception p0

    monitor-exit v0

    throw p0
.end method


# virtual methods
.method public decrypt(Ljava/lang/String;)Ljava/lang/String;
    .registers 8

    const/4 v0, 0x0

    if-nez p1, :cond_4

    return-object v0

    .line 1
    :cond_4
    iget-object v1, p0, Lio/rong/imlib/common/EncryptUtil;->key:Ljava/lang/String;

    if-nez v1, :cond_10

    .line 2
    sget-object p1, Lio/rong/imlib/common/EncryptUtil;->TAG:Ljava/lang/String;

    const-string v1, "key is null"

    invoke-static {p1, v1}, Lio/rong/common/rlog/RLog;->e(Ljava/lang/String;Ljava/lang/String;)I

    return-object v0

    :cond_10
    const/4 v1, 0x2

    .line 3
    :try_start_11
    invoke-static {p1, v1}, Landroid/util/Base64;->decode(Ljava/lang/String;I)[B

    move-result-object p1

    const-string v2, "AES/ECB/PKCS5Padding"

    .line 4
    invoke-static {v2}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v2

    .line 5
    new-instance v3, Ljavax/crypto/spec/SecretKeySpec;

    iget-object v4, p0, Lio/rong/imlib/common/EncryptUtil;->key:Ljava/lang/String;

    invoke-virtual {v4}, Ljava/lang/String;->getBytes()[B

    move-result-object v4

    const-string v5, "AES"

    invoke-direct {v3, v4, v5}, Ljavax/crypto/spec/SecretKeySpec;-><init>([BLjava/lang/String;)V

    .line 6
    invoke-virtual {v2, v1, v3}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;)V

    .line 7
    invoke-virtual {v2, p1}, Ljavax/crypto/Cipher;->doFinal([B)[B

    move-result-object p1

    .line 8
    new-instance v1, Ljava/lang/String;

    invoke-direct {v1, p1}, Ljava/lang/String;-><init>([B)V
    :try_end_34
    .catch Ljava/lang/Exception; {:try_start_11 .. :try_end_34} :catch_35

    return-object v1

    :catch_35
    move-exception p1

    .line 9
    sget-object v1, Lio/rong/imlib/common/EncryptUtil;->TAG:Ljava/lang/String;

    const-string v2, "decrypt"

    invoke-static {v1, v2, p1}, Lio/rong/common/rlog/RLog;->e(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Throwable;)I

    return-object v0
.end method

.method public encrypt(Ljava/lang/String;)Ljava/lang/String;
    .registers 7

    const/4 v0, 0x0

    if-nez p1, :cond_4

    return-object v0

    .line 1
    :cond_4
    iget-object v1, p0, Lio/rong/imlib/common/EncryptUtil;->key:Ljava/lang/String;

    if-nez v1, :cond_10

    .line 2
    sget-object p1, Lio/rong/imlib/common/EncryptUtil;->TAG:Ljava/lang/String;

    const-string v1, "key is null"

    invoke-static {p1, v1}, Lio/rong/common/rlog/RLog;->e(Ljava/lang/String;Ljava/lang/String;)I

    return-object v0

    :cond_10
    :try_start_10
    const-string v1, "AES/ECB/PKCS5Padding"

    .line 3
    invoke-static {v1}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v1

    .line 4
    new-instance v2, Ljavax/crypto/spec/SecretKeySpec;

    iget-object v3, p0, Lio/rong/imlib/common/EncryptUtil;->key:Ljava/lang/String;

    invoke-virtual {v3}, Ljava/lang/String;->getBytes()[B

    move-result-object v3

    const-string v4, "AES"

    invoke-direct {v2, v3, v4}, Ljavax/crypto/spec/SecretKeySpec;-><init>([BLjava/lang/String;)V

    const/4 v3, 0x1

    .line 5
    invoke-virtual {v1, v3, v2}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;)V

    .line 6
    invoke-virtual {p1}, Ljava/lang/String;->getBytes()[B

    move-result-object p1

    invoke-virtual {v1, p1}, Ljavax/crypto/Cipher;->doFinal([B)[B

    move-result-object p1

    const/4 v1, 0x2

    .line 7
    invoke-static {p1, v1}, Landroid/util/Base64;->encodeToString([BI)Ljava/lang/String;

    move-result-object p1
    :try_end_34
    .catch Ljava/lang/Exception; {:try_start_10 .. :try_end_34} :catch_35

    return-object p1

    :catch_35
    move-exception p1

    .line 8
    sget-object v1, Lio/rong/imlib/common/EncryptUtil;->TAG:Ljava/lang/String;

    const-string v2, "encrypt"

    invoke-static {v1, v2, p1}, Lio/rong/common/rlog/RLog;->e(Ljava/lang/String;Ljava/lang/String;Ljava/lang/Throwable;)I

    return-object v0
.end method