AESCoder.smali

.class public Lcom/cmcm/support/util/AESCoder;
.super Ljava/lang/Object;
.source "AESCoder.java"


# static fields
.field private static final DEFAULT_CIPHER_ALGORITHM:Ljava/lang/String; = "AES/ECB/PKCS5Padding"

.field private static final KEY_ALGORITHM:Ljava/lang/String; = "AES"


# direct methods
.method public constructor <init>()V
    .registers 1

    .prologue
    .line 11
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    return-void
.end method

.method public static decrypt([BLjava/security/Key;)[B
    .registers 3
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/lang/Exception;
        }
    .end annotation

    .prologue
    .line 124
    const-string v0, "AES/ECB/PKCS5Padding"

    invoke-static {p0, p1, v0}, Lcom/cmcm/support/util/AESCoder;->decrypt([BLjava/security/Key;Ljava/lang/String;)[B

    move-result-object v0

    return-object v0
.end method

.method public static decrypt([BLjava/security/Key;Ljava/lang/String;)[B
    .registers 5
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/lang/Exception;
        }
    .end annotation

    .prologue
    .line 166
    invoke-static {p2}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v0

    .line 168
    const/4 v1, 0x2

    invoke-virtual {v0, v1, p1}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;)V

    .line 173
    invoke-virtual {v0, p0}, Ljavax/crypto/Cipher;->doFinal([B)[B

    move-result-object v0

    return-object v0
.end method

.method public static decrypt([B[B)[B
    .registers 3
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/lang/Exception;
        }
    .end annotation

    .prologue
    .line 112
    const-string v0, "AES/ECB/PKCS5Padding"

    invoke-static {p0, p1, v0}, Lcom/cmcm/support/util/AESCoder;->decrypt([B[BLjava/lang/String;)[B

    move-result-object v0

    return-object v0
.end method

.method public static decrypt([B[BLjava/lang/String;)[B
    .registers 4
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/lang/Exception;
        }
    .end annotation

    .prologue
    .line 139
    invoke-static {p1}, Lcom/cmcm/support/util/AESCoder;->toKey([B)Ljava/security/Key;

    move-result-object v0

    .line 140
    invoke-static {p0, v0, p2}, Lcom/cmcm/support/util/AESCoder;->decrypt([BLjava/security/Key;Ljava/lang/String;)[B

    move-result-object v0

    return-object v0
.end method

.method public static decrypt([B[B[BLjava/lang/String;)[B
    .registers 8
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/lang/Exception;
        }
    .end annotation

    .prologue
    .line 146
    invoke-static {p3}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v0

    .line 147
    invoke-static {p1}, Lcom/cmcm/support/util/AESCoder;->toKey([B)Ljava/security/Key;

    move-result-object v1

    .line 148
    new-instance v2, Ljavax/crypto/spec/IvParameterSpec;

    invoke-direct {v2, p2}, Ljavax/crypto/spec/IvParameterSpec;-><init>([B)V

    .line 149
    const/4 v3, 0x2

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

    .line 151
    invoke-virtual {v0, p0}, Ljavax/crypto/Cipher;->doFinal([B)[B

    move-result-object v0

    return-object v0
.end method

.method public static encrypt([BLjava/security/Key;)[B
    .registers 3
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/lang/Exception;
        }
    .end annotation

    .prologue
    .line 40
    const-string v0, "AES/ECB/PKCS5Padding"

    invoke-static {p0, p1, v0}, Lcom/cmcm/support/util/AESCoder;->encrypt([BLjava/security/Key;Ljava/lang/String;)[B

    move-result-object v0

    return-object v0
.end method

.method public static encrypt([BLjava/security/Key;Ljava/lang/String;)[B
    .registers 5
    .annotation build Landroid/annotation/SuppressLint;
        value = {
            "TrulyRandom"
        }
    .end annotation

    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/lang/Exception;
        }
    .end annotation

    .prologue
    .line 84
    invoke-static {p2}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v0

    .line 86
    const/4 v1, 0x1

    invoke-virtual {v0, v1, p1}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;)V

    .line 88
    invoke-virtual {v0, p0}, Ljavax/crypto/Cipher;->doFinal([B)[B

    move-result-object v0

    return-object v0
.end method

.method public static encrypt([B[B)[B
    .registers 3
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/lang/Exception;
        }
    .end annotation

    .prologue
    .line 52
    const-string v0, "AES/ECB/PKCS5Padding"

    invoke-static {p0, p1, v0}, Lcom/cmcm/support/util/AESCoder;->encrypt([B[BLjava/lang/String;)[B

    move-result-object v0

    return-object v0
.end method

.method public static encrypt([B[BLjava/lang/String;)[B
    .registers 4
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/lang/Exception;
        }
    .end annotation

    .prologue
    .line 67
    invoke-static {p1}, Lcom/cmcm/support/util/AESCoder;->toKey([B)Ljava/security/Key;

    move-result-object v0

    .line 68
    invoke-static {p0, v0, p2}, Lcom/cmcm/support/util/AESCoder;->encrypt([BLjava/security/Key;Ljava/lang/String;)[B

    move-result-object v0

    return-object v0
.end method

.method public static encrypt([B[B[BLjava/lang/String;)[B
    .registers 8
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/lang/Exception;
        }
    .end annotation

    .prologue
    .line 94
    invoke-static {p3}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v0

    .line 96
    invoke-static {p1}, Lcom/cmcm/support/util/AESCoder;->toKey([B)Ljava/security/Key;

    move-result-object v1

    .line 97
    new-instance v2, Ljavax/crypto/spec/IvParameterSpec;

    invoke-direct {v2, p2}, Ljavax/crypto/spec/IvParameterSpec;-><init>([B)V

    .line 98
    const/4 v3, 0x1

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

    .line 100
    invoke-virtual {v0, p0}, Ljavax/crypto/Cipher;->doFinal([B)[B

    move-result-object v0

    return-object v0
.end method

.method public static parseByte2HexStr([B)Ljava/lang/String;
    .registers 6
    .annotation build Landroid/annotation/SuppressLint;
        value = {
            "DefaultLocale"
        }
    .end annotation

    .prologue
    .line 178
    new-instance v2, Ljava/lang/StringBuffer;

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

    .line 179
    const/4 v0, 0x0

    :goto_6
    array-length v1, p0

    if-ge v0, v1, :cond_35

    .line 180
    aget-byte v1, p0, v0

    and-int/lit16 v1, v1, 0xff

    invoke-static {v1}, Ljava/lang/Integer;->toHexString(I)Ljava/lang/String;

    move-result-object v1

    .line 181
    invoke-virtual {v1}, Ljava/lang/String;->length()I

    move-result v3

    const/4 v4, 0x1

    if-ne v3, v4, :cond_2b

    .line 182
    new-instance v3, Ljava/lang/StringBuilder;

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

    const/16 v4, 0x30

    invoke-virtual {v3, v4}, Ljava/lang/StringBuilder;->append(C)Ljava/lang/StringBuilder;

    move-result-object v3

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

    move-result-object v1

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

    move-result-object v1

    .line 184
    :cond_2b
    invoke-virtual {v1}, Ljava/lang/String;->toUpperCase()Ljava/lang/String;

    move-result-object v1

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

    .line 179
    add-int/lit8 v0, v0, 0x1

    goto :goto_6

    .line 186
    :cond_35
    invoke-virtual {v2}, Ljava/lang/StringBuffer;->toString()Ljava/lang/String;

    move-result-object v0

    return-object v0
.end method

.method private static toKey([B)Ljava/security/Key;
    .registers 3

    .prologue
    .line 28
    new-instance v0, Ljavax/crypto/spec/SecretKeySpec;

    const-string v1, "AES"

    invoke-direct {v0, p0, v1}, Ljavax/crypto/spec/SecretKeySpec;-><init>([BLjava/lang/String;)V

    return-object v0
.end method