d.smali

.class public final Lio/dcloud/ep/d;
.super Ljava/lang/Object;


# static fields
.field private static a:Ljava/lang/String; = "RSA"


# direct methods
.method static constructor <clinit>()V
    .registers 0

    return-void
.end method

.method public static a(Ljava/lang/String;)Ljava/security/PublicKey;
    .registers 3
    .annotation system Ldalvik/annotation/MethodParameters;
        accessFlags = {
            0x0
        }
        names = {
            "publicKeyStr"
        }
    .end annotation

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

    const/4 v0, 0x0

    .line 13
    :try_start_1
    invoke-static {p0, v0}, Landroid/util/Base64;->decode(Ljava/lang/String;I)[B

    move-result-object p0

    .line 14
    sget-object v0, Lio/dcloud/ep/d;->a:Ljava/lang/String;

    invoke-static {v0}, Ljava/security/KeyFactory;->getInstance(Ljava/lang/String;)Ljava/security/KeyFactory;

    move-result-object v0

    .line 15
    new-instance v1, Ljava/security/spec/X509EncodedKeySpec;

    invoke-direct {v1, p0}, Ljava/security/spec/X509EncodedKeySpec;-><init>([B)V

    .line 16
    invoke-virtual {v0, v1}, Ljava/security/KeyFactory;->generatePublic(Ljava/security/spec/KeySpec;)Ljava/security/PublicKey;

    move-result-object p0

    check-cast p0, Ljava/security/interfaces/RSAPublicKey;
    :try_end_16
    .catch Ljava/security/NoSuchAlgorithmException; {:try_start_1 .. :try_end_16} :catch_3f
    .catch Ljava/security/spec/InvalidKeySpecException; {:try_start_1 .. :try_end_16} :catch_2b
    .catch Ljava/lang/NullPointerException; {:try_start_1 .. :try_end_16} :catch_17

    return-object p0

    .line 22
    :catch_17
    new-instance p0, Ljava/lang/Exception;

    invoke-static {}, Lio/dcloud/application/DCLoudApplicationImpl;->self()Lio/dcloud/application/DCLoudApplicationImpl;

    move-result-object v0

    invoke-virtual {v0}, Lio/dcloud/application/DCLoudApplicationImpl;->getContext()Landroid/content/Context;

    move-result-object v0

    sget v1, Lio/dcloud/feature/cf/R$string;->dcloud_feature_confusion_exception_no_key_input:I

    invoke-virtual {v0, v1}, Landroid/content/Context;->getString(I)Ljava/lang/String;

    move-result-object v0

    invoke-direct {p0, v0}, Ljava/lang/Exception;-><init>(Ljava/lang/String;)V

    throw p0

    .line 23
    :catch_2b
    new-instance p0, Ljava/lang/Exception;

    invoke-static {}, Lio/dcloud/application/DCLoudApplicationImpl;->self()Lio/dcloud/application/DCLoudApplicationImpl;

    move-result-object v0

    invoke-virtual {v0}, Lio/dcloud/application/DCLoudApplicationImpl;->getContext()Landroid/content/Context;

    move-result-object v0

    sget v1, Lio/dcloud/feature/cf/R$string;->dcloud_feature_confusion_exception_invalid_key:I

    invoke-virtual {v0, v1}, Landroid/content/Context;->getString(I)Ljava/lang/String;

    move-result-object v0

    invoke-direct {p0, v0}, Ljava/lang/Exception;-><init>(Ljava/lang/String;)V

    throw p0

    .line 24
    :catch_3f
    new-instance p0, Ljava/lang/Exception;

    invoke-static {}, Lio/dcloud/application/DCLoudApplicationImpl;->self()Lio/dcloud/application/DCLoudApplicationImpl;

    move-result-object v0

    invoke-virtual {v0}, Lio/dcloud/application/DCLoudApplicationImpl;->getContext()Landroid/content/Context;

    move-result-object v0

    sget v1, Lio/dcloud/feature/cf/R$string;->dcloud_feature_confusion_exception_no_algorithm:I

    invoke-virtual {v0, v1}, Landroid/content/Context;->getString(I)Ljava/lang/String;

    move-result-object v0

    invoke-direct {p0, v0}, Ljava/lang/Exception;-><init>(Ljava/lang/String;)V

    throw p0
.end method

.method public static a([BLjava/security/PublicKey;)[B
    .registers 7
    .annotation system Ldalvik/annotation/MethodParameters;
        accessFlags = {
            0x0,
            0x0
        }
        names = {
            "encryptedData",
            "privateKey"
        }
    .end annotation

    :try_start_0
    const-string v0, "RSA/ECB/PKCS1Padding"

    .line 1
    invoke-static {v0}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v0

    const/4 v1, 0x2

    .line 2
    invoke-virtual {v0, v1, p1}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;)V

    .line 3
    invoke-virtual {v0}, Ljavax/crypto/Cipher;->getBlockSize()I

    move-result p1

    .line 4
    new-instance v1, Ljava/io/ByteArrayOutputStream;

    array-length v2, p0

    invoke-direct {v1, v2}, Ljava/io/ByteArrayOutputStream;-><init>(I)V

    const/4 v2, 0x0

    .line 7
    :goto_15
    array-length v3, p0

    mul-int v4, v2, p1

    sub-int/2addr v3, v4

    if-lez v3, :cond_25

    .line 8
    invoke-virtual {v0, p0, v4, p1}, Ljavax/crypto/Cipher;->doFinal([BII)[B

    move-result-object v3

    invoke-virtual {v1, v3}, Ljava/io/ByteArrayOutputStream;->write([B)V

    add-int/lit8 v2, v2, 0x1

    goto :goto_15

    .line 12
    :cond_25
    invoke-virtual {v1}, Ljava/io/ByteArrayOutputStream;->toByteArray()[B

    move-result-object p0
    :try_end_29
    .catch Ljava/lang/Exception; {:try_start_0 .. :try_end_29} :catch_2a

    return-object p0

    :catch_2a
    const/4 p0, 0x0

    return-object p0
.end method