.class public Lcom/netease/nis/basesdk/EncryptUtil;
.super Ljava/lang/Object;
.source "EncryptUtil.java"


# direct methods
.method public constructor <init>()V
    .locals 0

    .line 1
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    return-void
.end method

.method public static AESDecrypt(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
    .locals 2

    .line 1
    new-instance v0, Ljavax/crypto/spec/SecretKeySpec;

    invoke-virtual {p1}, Ljava/lang/String;->getBytes()[B

    move-result-object p1

    const-string v1, "AES"

    invoke-direct {v0, p1, v1}, Ljavax/crypto/spec/SecretKeySpec;-><init>([BLjava/lang/String;)V

    const-string p1, "AES/CBC/PKCS5Padding"

    .line 2
    invoke-static {p1}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object p1

    .line 3
    new-instance v1, Ljavax/crypto/spec/IvParameterSpec;

    invoke-virtual {p2}, Ljava/lang/String;->getBytes()[B

    move-result-object p2

    invoke-direct {v1, p2}, Ljavax/crypto/spec/IvParameterSpec;-><init>([B)V

    const/4 p2, 0x2

    invoke-virtual {p1, p2, v0, v1}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V

    .line 4
    invoke-static {p0, p2}, Landroid/util/Base64;->decode(Ljava/lang/String;I)[B

    move-result-object p0

    invoke-virtual {p1, p0}, Ljavax/crypto/Cipher;->doFinal([B)[B

    move-result-object p0

    .line 5
    new-instance p1, Ljava/lang/String;

    invoke-direct {p1, p0}, Ljava/lang/String;-><init>([B)V

    return-object p1
.end method

.method public static AESEncrypt(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
    .locals 2

    .line 1
    new-instance v0, Ljavax/crypto/spec/SecretKeySpec;

    invoke-virtual {p1}, Ljava/lang/String;->getBytes()[B

    move-result-object p1

    const-string v1, "AES"

    invoke-direct {v0, p1, v1}, Ljavax/crypto/spec/SecretKeySpec;-><init>([BLjava/lang/String;)V

    const-string p1, "AES/CBC/PKCS5Padding"

    .line 2
    invoke-static {p1}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object p1

    .line 3
    new-instance v1, Ljavax/crypto/spec/IvParameterSpec;

    invoke-virtual {p2}, Ljava/lang/String;->getBytes()[B

    move-result-object p2

    invoke-direct {v1, p2}, Ljavax/crypto/spec/IvParameterSpec;-><init>([B)V

    const/4 p2, 0x1

    invoke-virtual {p1, p2, v0, v1}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V

    .line 4
    invoke-virtual {p0}, Ljava/lang/String;->getBytes()[B

    move-result-object p0

    invoke-virtual {p1, p0}, Ljavax/crypto/Cipher;->doFinal([B)[B

    move-result-object p0

    .line 5
    new-instance p1, Ljava/lang/String;

    const/4 p2, 0x2

    invoke-static {p0, p2}, Landroid/util/Base64;->encode([BI)[B

    move-result-object p0

    invoke-direct {p1, p0}, Ljava/lang/String;-><init>([B)V

    return-object p1
.end method

.method public static RSAEncrypt(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
    .locals 2

    .line 1
    :try_start_0
    invoke-static {p1}, Lcom/netease/nis/basesdk/EncryptUtil;->a(Ljava/lang/String;)Ljava/security/PublicKey;

    move-result-object p1

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

    .line 2
    invoke-static {v0}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v0

    const/4 v1, 0x1

    .line 3
    invoke-virtual {v0, v1, p1}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;)V

    .line 4
    invoke-virtual {p0}, Ljava/lang/String;->getBytes()[B

    move-result-object p0

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

    move-result-object p0

    .line 5
    new-instance p1, Ljava/lang/String;

    const/4 v0, 0x2

    invoke-static {p0, v0}, Landroid/util/Base64;->encode([BI)[B

    move-result-object p0

    invoke-direct {p1, p0}, Ljava/lang/String;-><init>([B)V
    :try_end_0
    .catch Ljava/lang/Exception; {:try_start_0 .. :try_end_0} :catch_0

    return-object p1

    :catch_0
    move-exception p0

    .line 7
    invoke-virtual {p0}, Ljava/lang/Exception;->getMessage()Ljava/lang/String;

    move-result-object p0

    invoke-static {p0}, Lcom/netease/nis/basesdk/Logger;->e(Ljava/lang/String;)V

    const/4 p0, 0x0

    return-object p0
.end method

.method private static a(Ljava/lang/String;)Ljava/security/PublicKey;
    .locals 1

    const/4 v0, 0x2

    .line 1
    invoke-static {p0, v0}, Landroid/util/Base64;->decode(Ljava/lang/String;I)[B

    move-result-object p0

    .line 2
    new-instance v0, Ljava/security/spec/X509EncodedKeySpec;

    invoke-direct {v0, p0}, Ljava/security/spec/X509EncodedKeySpec;-><init>([B)V

    const-string p0, "RSA"

    .line 3
    invoke-static {p0}, Ljava/security/KeyFactory;->getInstance(Ljava/lang/String;)Ljava/security/KeyFactory;

    move-result-object p0

    .line 4
    invoke-virtual {p0, v0}, Ljava/security/KeyFactory;->generatePublic(Ljava/security/spec/KeySpec;)Ljava/security/PublicKey;

    move-result-object p0

    return-object p0
.end method

.method public static getRandomString(I)Ljava/lang/String;
    .locals 6

    .line 1
    new-instance v0, Ljava/lang/StringBuilder;

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

    const/4 v1, 0x0

    :goto_0
    if-ge v1, p0, :cond_0

    .line 4
    invoke-static {}, Ljava/lang/Math;->random()D

    move-result-wide v2

    const/16 v4, 0x3d

    int-to-double v4, v4

    mul-double/2addr v2, v4

    invoke-static {v2, v3}, Ljava/lang/Math;->round(D)J

    move-result-wide v2

    long-to-int v2, v2

    const-string v3, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"

    invoke-virtual {v3, v2}, Ljava/lang/String;->charAt(I)C

    move-result v2

    invoke-virtual {v0, v2}, Ljava/lang/StringBuilder;->append(C)Ljava/lang/StringBuilder;

    add-int/lit8 v1, v1, 0x1

    goto :goto_0

    .line 6
    :cond_0
    invoke-virtual {v0}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object p0

    return-object p0
.end method