a.smali

.class public final Lcom/baidu/techain/o/a;
.super Ljava/lang/Object;


# direct methods
.method public static a(Ljava/lang/String;)Ljava/lang/String;
    .registers 8

    .prologue
    const/4 v3, 0x0

    .line 0
    const-string v1, ""

    invoke-static {p0}, Landroid/text/TextUtils;->isEmpty(Ljava/lang/CharSequence;)Z

    move-result v0

    if-nez v0, :cond_85

    .line 1000
    :try_start_9
    const-string v2, ""

    const-string v0, "com.nearme.mcs"

    invoke-static {v0}, Lcom/baidu/techain/o/a;->b(Ljava/lang/String;)[B

    move-result-object v4

    array-length v0, v4

    rem-int/lit8 v0, v0, 0x2

    if-nez v0, :cond_28

    array-length v0, v4

    :goto_17
    if-ge v3, v0, :cond_2c

    aget-byte v5, v4, v3

    add-int/lit8 v6, v3, 0x1

    aget-byte v6, v4, v6

    aput-byte v6, v4, v3

    add-int/lit8 v6, v3, 0x1

    aput-byte v5, v4, v6

    add-int/lit8 v3, v3, 0x2

    goto :goto_17

    :cond_28
    array-length v0, v4

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

    goto :goto_17

    :cond_2c
    if-eqz v4, :cond_87

    new-instance v0, Ljava/lang/String;

    const-string v2, "UTF-8"

    invoke-static {v2}, Ljava/nio/charset/Charset;->forName(Ljava/lang/String;)Ljava/nio/charset/Charset;

    move-result-object v2

    invoke-direct {v0, v4, v2}, Ljava/lang/String;-><init>([BLjava/nio/charset/Charset;)V

    .line 2000
    :goto_39
    const-string v2, "DES"

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

    move-result-object v2

    const/4 v3, 0x2

    .line 3000
    new-instance v4, Ljavax/crypto/spec/DESKeySpec;

    const/4 v5, 0x0

    invoke-static {v0, v5}, Landroid/util/Base64;->decode(Ljava/lang/String;I)[B

    move-result-object v0

    invoke-direct {v4, v0}, Ljavax/crypto/spec/DESKeySpec;-><init>([B)V

    const-string v0, "DES"

    invoke-static {v0}, Ljavax/crypto/SecretKeyFactory;->getInstance(Ljava/lang/String;)Ljavax/crypto/SecretKeyFactory;

    move-result-object v0

    invoke-virtual {v0, v4}, Ljavax/crypto/SecretKeyFactory;->generateSecret(Ljava/security/spec/KeySpec;)Ljavax/crypto/SecretKey;

    move-result-object v0

    .line 2000
    invoke-virtual {v2, v3, v0}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;)V

    const/4 v0, 0x0

    invoke-static {p0, v0}, Landroid/util/Base64;->decode(Ljava/lang/String;I)[B

    move-result-object v0

    invoke-virtual {v2, v0}, Ljavax/crypto/Cipher;->doFinal([B)[B

    move-result-object v0

    new-instance v2, Ljava/lang/String;

    invoke-static {}, Ljava/nio/charset/Charset;->defaultCharset()Ljava/nio/charset/Charset;

    move-result-object v3

    invoke-direct {v2, v0, v3}, Ljava/lang/String;-><init>([BLjava/nio/charset/Charset;)V

    invoke-virtual {v2}, Ljava/lang/String;->trim()Ljava/lang/String;
    :try_end_6c
    .catch Ljava/lang/Exception; {:try_start_9 .. :try_end_6c} :catch_6e

    move-result-object v0

    .line 0
    :goto_6d
    return-object v0

    :catch_6e
    move-exception v0

    new-instance v2, Ljava/lang/StringBuilder;

    const-string v3, "desDecrypt-"

    invoke-direct {v2, v3}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V

    invoke-virtual {v0}, Ljava/lang/Exception;->getMessage()Ljava/lang/String;

    move-result-object v0

    invoke-virtual {v2, v0}, 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

    invoke-static {v0}, Lcom/baidu/techain/o/b;->b(Ljava/lang/String;)V

    :cond_85
    move-object v0, v1

    goto :goto_6d

    :cond_87
    move-object v0, v2

    goto :goto_39
.end method

.method private static b(Ljava/lang/String;)[B
    .registers 2

    :try_start_0
    const-string v0, "UTF-8"

    invoke-virtual {p0, v0}, Ljava/lang/String;->getBytes(Ljava/lang/String;)[B
    :try_end_5
    .catch Ljava/io/UnsupportedEncodingException; {:try_start_0 .. :try_end_5} :catch_7

    move-result-object v0

    :goto_6
    return-object v0

    :catch_7
    move-exception v0

    const/4 v0, 0x0

    new-array v0, v0, [B

    goto :goto_6
.end method