a.smali

.class public Lcom/ijinshan/pluginslive/plugin/util/a/a;
.super Ljava/lang/Object;
.source "DecryptUtil.java"


# direct methods
.method public static a(Landroid/content/Context;Ljava/lang/String;)Ljava/lang/String;
    .registers 6
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/UnsupportedEncodingException;
        }
    .end annotation

    .prologue
    .line 36
    :try_start_0
    invoke-virtual {p0}, Landroid/content/Context;->getResources()Landroid/content/res/Resources;

    move-result-object v0

    invoke-virtual {v0}, Landroid/content/res/Resources;->getAssets()Landroid/content/res/AssetManager;

    move-result-object v0

    const-string v1, "plugin_data_public_key.dat"

    invoke-virtual {v0, v1}, Landroid/content/res/AssetManager;->open(Ljava/lang/String;)Ljava/io/InputStream;

    move-result-object v0

    .line 37
    invoke-static {v0}, Lcom/ijinshan/pluginslive/plugin/util/a/b;->a(Ljava/io/InputStream;)Ljava/security/PublicKey;

    move-result-object v0

    .line 38
    invoke-static {p1, v0}, Lcom/ijinshan/pluginslive/plugin/util/a/a;->a(Ljava/lang/String;Ljava/security/Key;)Ljava/lang/String;
    :try_end_15
    .catch Ljava/lang/Exception; {:try_start_0 .. :try_end_15} :catch_17

    move-result-object v0

    return-object v0

    .line 39
    :catch_17
    move-exception v0

    .line 40
    new-instance v1, Ljava/io/UnsupportedEncodingException;

    new-instance v2, Ljava/lang/StringBuilder;

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

    const-string v3, "decrypt failed : "

    invoke-virtual {v2, v3}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v2

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

    throw v1
.end method

.method private static a(Ljava/lang/String;Ljava/security/Key;)Ljava/lang/String;
    .registers 10
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/UnsupportedEncodingException;
        }
    .end annotation

    .prologue
    const/16 v7, 0x80

    const/4 v6, 0x0

    .line 45
    invoke-static {p0}, Landroid/text/TextUtils;->isEmpty(Ljava/lang/CharSequence;)Z

    move-result v0

    if-eqz v0, :cond_11

    new-instance v0, Ljava/io/UnsupportedEncodingException;

    const-string v1, "input encrypt string is empty!"

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

    throw v0

    .line 47
    :cond_11
    invoke-virtual {p0}, Ljava/lang/String;->getBytes()[B

    move-result-object v0

    const/16 v1, 0x8

    invoke-static {v0, v1}, Landroid/util/Base64;->decode([BI)[B

    move-result-object v0

    .line 48
    array-length v1, v0

    mul-int/lit8 v1, v1, 0x2

    new-array v3, v1, [B

    move v1, v6

    move v4, v6

    .line 52
    :goto_22
    array-length v2, v0

    if-ge v1, v2, :cond_42

    .line 53
    array-length v2, v0

    sub-int/2addr v2, v1

    .line 54
    if-ge v2, v7, :cond_37

    .line 55
    :goto_29
    instance-of v5, p1, Ljava/security/PrivateKey;

    if-eqz v5, :cond_39

    move-object v5, p1

    .line 56
    check-cast v5, Ljava/security/PrivateKey;

    invoke-static/range {v0 .. v5}, Lcom/ijinshan/pluginslive/plugin/util/a/b;->a([BII[BILjava/security/PrivateKey;)I

    move-result v5

    add-int/2addr v4, v5

    .line 60
    :goto_35
    add-int/2addr v1, v2

    .line 61
    goto :goto_22

    :cond_37
    move v2, v7

    .line 54
    goto :goto_29

    :cond_39
    move-object v5, p1

    .line 58
    check-cast v5, Ljava/security/PublicKey;

    invoke-static/range {v0 .. v5}, Lcom/ijinshan/pluginslive/plugin/util/a/b;->