a.smali

.class public final Lsg/bigo/web/a/b/a;
.super Ljava/lang/Object;
.source "SourceFile"


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

    .line 10
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    return-void
.end method

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

    const/4 v0, 0x0

    .line 1107
    :try_start_1
    invoke-virtual {p0}, Ljava/lang/String;->length()I

    move-result v1

    const/4 v2, 0x0

    const/4 v3, 0x2

    if-ge v1, v3, :cond_c

    new-array p0, v2, [B

    goto :goto_32

    .line 1110
    :cond_c
    invoke-virtual {p0}, Ljava/lang/String;->toLowerCase()Ljava/lang/String;

    move-result-object p0

    .line 1111
    invoke-virtual {p0}, Ljava/lang/String;->length()I

    move-result v1

    div-int/2addr v1, v3

    .line 1112
    new-array v3, v1, [B

    :goto_17
    if-ge v2, v1, :cond_2f

    mul-int/lit8 v4, v2, 0x2

    add-int/lit8 v5, v4, 0x2

    .line 1114
    invoke-virtual {p0, v4, v5}, Ljava/lang/String;->substring(II)Ljava/lang/String;

    move-result-object v4

    const/16 v5, 0x10

    .line 1115
    invoke-static {v4, v5}, Ljava/lang/Integer;->parseInt(Ljava/lang/String;I)I

    move-result v4

    and-int/lit16 v4, v4, 0xff

    int-to-byte v4, v4

    aput-byte v4, v3, v2
    :try_end_2c
    .catch Ljava/lang/Exception; {:try_start_1 .. :try_end_2c} :catch_31

    add-int/lit8 v2, v2, 0x1

    goto :goto_17

    :cond_2f
    move-object p0, v3

    goto :goto_32

    :catch_31
    move-object p0, v0

    .line 81
    :goto_32
    invoke-static {p0, p1}, Lsg/bigo/web/a/b/a;->a([BLjava/lang/String;)[B

    move-result-object p0

    if-nez p0, :cond_39

    return-object v0

    .line 86
    :cond_39
    :try_start_39
    new-instance p1, Ljava/lang/String;

    const-string v1, "UTF-8"

    invoke-direct {p1, p0, v1}, Ljava/lang/String;-><init>([BLjava/lang/String;)V
    :try_end_40
    .catch Ljava/lang/Exception; {:try_start_39 .. :try_end_40} :catch_41

    move-object v0, p1

    :catch_41
    return-object v0
.end method

.method private static a(Ljava/lang/String;)Ljavax/crypto/spec/SecretKeySpec;
    .registers 3

    if-nez p0, :cond_4

    const-string p0, "bigo_webkit"

    .line 18
    :cond_4
    new-instance v0, Ljava/lang/StringBuffer;

    const/16 v1, 0x20

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

    .line 19
    invoke-virtual {v0, p0}, Ljava/lang/StringBuffer;->append(Ljava/lang/String;)Ljava/lang/StringBuffer;

    .line 20
    :goto_e
    invoke-virtual {v0}, Ljava/lang/StringBuffer;->length()I

    move-result p0

    if-ge p0, v1, :cond_1a

    const-string p0, "0"

    .line 21
    invoke-virtual {v0, p0}, Ljava/lang/StringBuffer;->append(Ljava/lang/String;)Ljava/lang/StringBuffer;

    goto :goto_e

    .line 23
    :cond_1a
    invoke-virtual {v0}, Ljava/lang/StringBuffer;->length()I

    move-result p0

    if-le p0, v1, :cond_23

    .line 24
    invoke-virtual {v0, v1}, Ljava/lang/StringBuffer;->setLength(I)V

    .line 28
    :cond_23
    :try_start_23
    invoke-virtual {v0}, Ljava/lang/StringBuffer;->toString()Ljava/lang/String;

    move-result-object p0

    const-string v0, "UTF-8"

    invoke-virtual {p0, v0}, Ljava/lang/String;->getBytes(Ljava/lang/String;)[B

    move-result-object p0
    :try_end_2d
    .catch Ljava/lang/Exception; {:try_start_23 .. :try_end_2d} :catch_2e

    goto :goto_2f

    :catch_2e
    const/4 p0, 0x0

    .line 32
    :goto_2f
    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

.method private static a([BLjava/lang/String;)[B
    .registers 4

    .line 63
    :try_start_0
    invoke-static {p1}, Lsg/bigo/web/a/b/a;->a(Ljava/lang/String;)Ljavax/crypto/spec/SecretKeySpec;

    move-result-object p1

    const-string v0, "AES/ECB/PKCS5Padding"

    .line 64
    invoke-static {v0}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v0

    const/4 v1, 0x2

    .line 65
    invoke-virtual {v0, v1, p1}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;)V

    .line 66
    invoke-virtual {v0, p0}, Ljavax/crypto/Cipher;->doFinal([B)[B

    move-result-object p0
    :try_end_12
    .catch Ljava/lang/Exception; {:try_start_0 .. :try_end_12} :catch_13

    return-object p0

    :catch_13
    const/4 p0, 0x0

    return-object p0
.end method