AES.smali

.class public Lcom/baidu/sapi2/utils/AES;
.super Ljava/lang/Object;
.source "AES.java"


# static fields
.field private static final DEFAULT_ALGORITHM:Ljava/lang/String; = "AES"

.field private static final DEFAULT_ALGORITHM_MODE:Ljava/lang/String; = "AES/CBC/NoPadding"

.field private static final DEFAULT_ENCODING:Ljava/lang/String; = "UTF-8"


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

.field private algorithmMode:Ljava/lang/String;

.field private encoding:Ljava/lang/String;


# direct methods
.method public constructor <init>()V
    .registers 4

    .prologue
    .line 33
    const-string v0, "AES"

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

    const-string v2, "UTF-8"

    invoke-direct {p0, v0, v1, v2}, Lcom/baidu/sapi2/utils/AES;-><init>(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V

    .line 34
    return-void
.end method

.method public constructor <init>(Ljava/lang/String;Ljava/lang/String;)V
    .registers 4

    .prologue
    .line 37
    const-string v0, "UTF-8"

    invoke-direct {p0, p1, p2, v0}, Lcom/baidu/sapi2/utils/AES;-><init>(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V

    .line 38
    return-void
.end method

.method public constructor <init>(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V
    .registers 5

    .prologue
    .line 40
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 28
    const-string v0, "UTF-8"

    iput-object v0, p0, Lcom/baidu/sapi2/utils/AES;->encoding:Ljava/lang/String;

    .line 29
    const-string v0, "AES/CBC/NoPadding"

    iput-object v0, p0, Lcom/baidu/sapi2/utils/AES;->algorithmMode:Ljava/lang/String;

    .line 30
    const-string v0, "AES"

    iput-object v0, p0, Lcom/baidu/sapi2/utils/AES;->algorithm:Ljava/lang/String;

    .line 41
    iput-object p1, p0, Lcom/baidu/sapi2/utils/AES;->algorithm:Ljava/lang/String;

    .line 42
    iput-object p2, p0, Lcom/baidu/sapi2/utils/AES;->algorithmMode:Ljava/lang/String;

    .line 43
    iput-object p3, p0, Lcom/baidu/sapi2/utils/AES;->encoding:Ljava/lang/String;

    .line 44
    return-void
.end method

.method private static padString(Ljava/lang/String;)Ljava/lang/String;
    .registers 5

    .prologue
    .line 121
    const/16 v1, 0x20

    .line 122
    const/16 v0, 0x10

    .line 123
    invoke-virtual {p0}, Ljava/lang/String;->getBytes()[B

    move-result-object v2

    array-length v2, v2

    rem-int/2addr v2, v0

    .line 124
    sub-int v2, v0, v2

    .line 126
    const/4 v0, 0x0

    :goto_d
    if-ge v0, v2, :cond_23

    .line 127
    new-instance v3, Ljava/lang/StringBuilder;

    invoke-direct {v3}, Ljava/lang/StringBuilder;-><init>()V

    invoke-virtual {v3, p0}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v3

    invoke-virtual {v3, v1}, Ljava/lang/StringBuilder;->append(C)Ljava/lang/StringBuilder;

    move-result-object v3

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

    move-result-object p0

    .line 126
    add-int/lit8 v0, v0, 0x1

    goto :goto_d

    .line 130
    :cond_23
    return-object p0
.end method


# virtual methods
.method public decrypt([BLjava/lang/String;Ljava/lang/String;)[B
    .registers 10
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/lang/Exception;
        }
    .end annotation

    .prologue
    const/4 v5, 0x0

    .line 66
    if-eqz p1, :cond_6

    array-length v0, p1

    if-nez v0, :cond_e

    .line 67
    :cond_6
    new-instance v0, Ljava/lang/Exception;

    const-string v1, "Empty string"

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

    throw v0

    .line 70
    :cond_e
    new-array v0, v5, [B

    .line 73
    :try_start_10
    new-instance v1, Ljavax/crypto/spec/IvParameterSpec;

    iget-object v2, p0, Lcom/baidu/sapi2/utils/AES;->encoding:Ljava/lang/String;

    invoke-virtual {p2, v2}, Ljava/lang/String;->getBytes(Ljava/lang/String;)[B

    move-result-object v2

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

    .line 74
    new-instance v2, Ljavax/crypto/spec/SecretKeySpec;

    invoke-virtual {p3}, Ljava/lang/String;->getBytes()[B

    move-result-object v3

    iget-object v4, p0, Lcom/baidu/sapi2/utils/AES;->algorithm:Ljava/lang/String;

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

    .line 75
    iget-object v3, p0, Lcom/baidu/sapi2/utils/AES;->algorithmMode:Ljava/lang/String;

    invoke-static {v3}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v3

    .line 76
    const/4 v4, 0x2

    invoke-virtual {v3, v4, v2, v1}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V

    .line 77
    invoke-virtual {v3, p1}, Ljavax/crypto/Cipher;->doFinal([B)[B
    :try_end_33
    .catch Ljava/lang/Throwable; {:try_start_10 .. :try_end_33} :catch_35

    move-result-object v0

    .line 81
    :goto_34
    return-object v0

    .line 78
    :catch_35
    move-exception v1

    .line 79
    const-string v2, "SAPI"

    const/4 v3, 0x1

    new-array v3, v3, [Ljava/lang/Object;

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

    move-result-object v1

    aput-object v1, v3, v5

    invoke-static {v2, v3}, Lcom/baidu/sapi2/base/debug/Log;->e(Ljava/lang/String;[Ljava/lang/Object;)V

    goto :goto_34
.end method

.method public decryptFile(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V
    .registers 11
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/lang/Exception;
        }
    .end annotation

    .prologue
    const/4 v2, 0x0

    .line 86
    .line 90
    :try_start_1
    new-instance v0, Ljavax/crypto/spec/SecretKeySpec;

    invoke-virtual {p3}, Ljava/lang/String;->getBytes()[B

    move-result-object v1

    iget-object v3, p0, Lcom/baidu/sapi2/utils/AES;->algorithm:Ljava/lang/String;

    invoke-direct {v0, v1, v3}, Ljavax/crypto/spec/SecretKeySpec;-><init>([BLjava/lang/String;)V

    .line 91
    iget-object v1, p0, Lcom/baidu/sapi2/utils/AES;->algorithm:Ljava/lang/String;

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

    move-result-object v5

    .line 92
    const/4 v1, 0x2

    invoke-virtual {v5, v1, v0}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;)V

    .line 93
    new-instance v4, Ljava/io/FileInputStream;

    invoke-direct {v4, p1}, Ljava/io/FileInputStream;-><init>(Ljava/lang/String;)V
    :try_end_1b
    .catch Ljava/lang/Throwable; {:try_start_1 .. :try_end_1b} :catch_88
    .catchall {:try_start_1 .. :try_end_1b} :catchall_66

    .line 94
    :try_start_1b
    new-instance v1, Ljava/io/FileOutputStream;

    invoke-direct {v1, p2}, Ljava/io/FileOutputStream;-><init>(Ljava/lang/String;)V
    :try_end_20
    .catch Ljava/lang/Throwable; {:try_start_1b .. :try_end_20} :catch_8c
    .catchall {:try_start_1b .. :try_end_20} :catchall_79

    .line 95
    :try_start_20
    new-instance v3, Ljavax/crypto/CipherOutputStream;

    invoke-direct {v3, v1, v5}, Ljavax/crypto/CipherOutputStream;-><init>(Ljava/io/OutputStream;Ljavax/crypto/Cipher;)V
    :try_end_25
    .catch Ljava/lang/Throwable; {:try_start_20 .. :try_end_25} :catch_90
    .catchall {:try_start_20 .. :try_end_25} :catchall_7c

    .line 96
    const/16 v0, 0x400

    :try_start_27
    new-array v0, v0, [B

    .line 98
    :goto_29
    invoke-virtual {v4, v0}, Ljava/io/InputStream;->read([B)I

    move-result v2

    if-ltz v2, :cond_56

    .line 99
    const/4 v5, 0x0

    invoke-virtual {v3, v0, v5, v2}, Ljavax/crypto/CipherOutputStream;->write([BII)V
    :try_end_33
    .catch Ljava/lang/Throwable; {:try_start_27 .. :try_end_33} :catch_34
    .catchall {:try_start_27 .. :try_end_33} :catchall_80

    goto :goto_29

    .line 101
    :catch_34
    move-exception v0

    move-object v2, v3

    move-object v3, v4

    .line 102
    :goto_37
    :try_start_37
    const-string v4, "SAPI"

    const/4 v5, 0x1

    new-array v5, v5, [Ljava/lang/Object;

    const/4 v6, 0x0

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

    move-result-object v0

    aput-object v0, v5, v6

    invoke-static {v4, v5}, Lcom/baidu/sapi2/base/debug/Log;->e(Ljava/lang/String;[Ljava/lang/Object;)V
    :try_end_46
    .catchall {:try_start_37 .. :try_end_46} :catchall_83

    .line 104
    if-eqz v2, :cond_4b

    .line 105
    invoke-virtual {v2}, Ljavax/crypto/CipherOutputStream;->close()V

    .line 107
    :cond_4b
    if-eqz v1, :cond_50

    .line 108
    invoke-virtual {v1}, Ljava/io/OutputStream;->close()V

    .line 110
    :cond_50
    if-eqz v3, :cond_55

    .line 111
    invoke-virtual {v3}, Ljava/io/InputStream;->close()V

    .line 114
    :cond_55
    :goto_55
    return-void

    .line 104
    :cond_56
    if-eqz v3, :cond_5b

    .line 105
    invoke-virtual {v3}, Ljavax/crypto/CipherOutputStream;->close()V

    .line 107
    :cond_5b
    if-eqz v1, :cond_60

    .line 108
    invoke-virtual {v1}, Ljava/io/OutputStream;->close()V

    .line 110
    :cond_60
    if-eqz v4, :cond_55

    .line 111
    invoke-virtual {v4}, Ljava/io/InputStream;->close()V

    goto :goto_55

    .line 104
    :catchall_66
    move-exception v0

    move-object v3, v2

    move-object v4, v2

    :goto_69
    if-eqz v3, :cond_6e

    .line 105
    invoke-virtual {v3}, Ljavax/crypto/CipherOutputStream;->close()V

    .line 107
    :cond_6e
    if-eqz v2, :cond_73

    .line 108
    invoke-virtual {v2}, Ljava/io/OutputStream;->close()V

    .line 110
    :cond_73
    if-eqz v4, :cond_78

    .line 111
    invoke-virtual {v4}, Ljava/io/InputStream;->close()V

    .line 113
    :cond_78
    throw v0

    .line 104
    :catchall_79
    move-exception v0

    move-object v3, v2

    goto :goto_69

    :catchall_7c
    move-exception v0

    move-object v3, v2

    move-object v2, v1

    goto :goto_69

    :catchall_80
    move-exception v0

    move-object v2, v1

    goto :goto_69

    :catchall_83
    move-exception v0

    move-object v4, v3

    move-object v3, v2

    move-object v2, v1

    goto :goto_69

    .line 101
    :catch_88
    move-exception v0

    move-object v1, v2

    move-object v3, v2

    goto :goto_37

    :catch_8c
    move-exception v0

    move-object v1, v2

    move-object v3, v4

    goto :goto_37

    :catch_90
    move-exception v0

    move-object v3, v4

    goto :goto_37
.end method

.method public encrypt(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)[B
    .registers 11
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/lang/Exception;
        }
    .end annotation

    .prologue
    const/4 v6, 0x0

    const/4 v5, 0x1

    .line 47
    if-eqz p1, :cond_a

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

    move-result v0

    if-nez v0, :cond_12

    .line 48
    :cond_a
    new-instance v0, Ljava/lang/Exception;

    const-string v1, "Empty string"

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

    throw v0

    .line 50
    :cond_12
    const/4 v0, 0x0

    .line 52
    :try_start_13
    new-instance v1, Ljavax/crypto/spec/IvParameterSpec;

    iget-object v2, p0, Lcom/baidu/sapi2/utils/AES;->encoding:Ljava/lang/String;

    invoke-virtual {p2, v2}, Ljava/lang/String;->getBytes(Ljava/lang/String;)[B

    move-result-object v2

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

    .line 53
    new-instance v2, Ljavax/crypto/spec/SecretKeySpec;

    invoke-virtual {p3}, Ljava/lang/String;->getBytes()[B

    move-result-object v3

    iget-object v4, p0, Lcom/baidu/sapi2/utils/AES;->algorithm:Ljava/lang/String;

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

    .line 54
    iget-object v3, p0, Lcom/baidu/sapi2/utils/AES;->algorithmMode:Ljava/lang/String;

    invoke-static {v3}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v3

    .line 55
    const/4 v4, 0x1

    invoke-virtual {v3, v4, v2, v1}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V

    .line 56
    invoke-static {p1}, Lcom/baidu/sapi2/utils/AES;->padString(Ljava/lang/String;)Ljava/lang/String;

    move-result-object v1

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

    move-result-object v1

    invoke-virtual {v3, v1}, Ljavax/crypto/Cipher;->doFinal([B)[B
    :try_end_3e
    .catch Ljava/security/NoSuchAlgorithmException; {:try_start_13 .. :try_end_3e} :catch_40
    .catch Ljavax/crypto/NoSuchPaddingException; {:try_start_13 .. :try_end_3e} :catch_4f

    move-result-object v0

    .line 62
    :goto_3f
    return-object v0

    .line 57
    :catch_40
    move-exception v1

    .line 58
    const-string v2, "SAPI"

    new-array v3, v5, [Ljava/lang/Object;

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

    move-result-object v1

    aput-object v1, v3, v6

    invoke-static {v2, v3}, Lcom/baidu/sapi2/base/debug/Log;->e(Ljava/lang/String;[Ljava/lang/Object;)V

    goto :goto_3f

    .line 59
    :catch_4f
    move-exception v1

    .line 60
    const-string v2, "SAPI"

    new-array v3, v5, [Ljava/lang/Object;

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

    move-result-object v1

    aput-object v1, v3, v6

    invoke-static {v2, v3}, Lcom/baidu/sapi2/base/debug/Log;->e(Ljava/lang/String;[Ljava/lang/Object;)V

    goto :goto_3f
.end method