SymmetricEncryptUtil.smali

.class public Lcom/sandboxol/common/utils/SymmetricEncryptUtil;
.super Ljava/lang/Object;
.source "SymmetricEncryptUtil.java"


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

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

    return-void
.end method

.method public static encryption(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
    .registers 2

    .line 1
    invoke-static {p0, p1}, Lcom/sandboxol/common/utils/SymmetricEncryptUtil;->getEncryptByteArr(Ljava/lang/String;Ljava/lang/String;)[B

    move-result-object p0

    invoke-static {p0}, Lcom/sandboxol/common/utils/SymmetricEncryptUtil;->parseByte2HexStr([B)Ljava/lang/String;

    move-result-object p0

    return-object p0
.end method

.method private static getEncryptByteArr(Ljava/lang/String;Ljava/lang/String;)[B
    .registers 5

    const-string v0, "AES"

    .line 1
    :try_start_2
    invoke-static {v0}, Ljavax/crypto/KeyGenerator;->getInstance(Ljava/lang/String;)Ljavax/crypto/KeyGenerator;

    move-result-object v1

    const-string v2, "SHA1PRNG"

    .line 2
    invoke-static {v2}, Ljava/security/SecureRandom;->getInstance(Ljava/lang/String;)Ljava/security/SecureRandom;

    move-result-object v2

    .line 3
    invoke-virtual {p1}, Ljava/lang/String;->getBytes()[B

    move-result-object p1

    invoke-virtual {v2, p1}, Ljava/security/SecureRandom;->setSeed([B)V

    const/16 p1, 0x80

    .line 4
    invoke-virtual {v1, p1, v2}, Ljavax/crypto/KeyGenerator;->init(ILjava/security/SecureRandom;)V

    .line 5
    invoke-virtual {v1}, Ljavax/crypto/KeyGenerator;->generateKey()Ljavax/crypto/SecretKey;

    move-result-object p1

    .line 6
    invoke-interface {p1}, Ljavax/crypto/SecretKey;->getEncoded()[B

    move-result-object p1

    .line 7
    new-instance v1, Ljavax/crypto/spec/SecretKeySpec;

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

    .line 8
    invoke-static {v0}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object p1

    const-string v0, "utf-8"

    .line 9
    invoke-virtual {p0, v0}, Ljava/lang/String;->getBytes(Ljava/lang/String;)[B

    move-result-object p0

    const/4 v0, 0x1

    .line 10
    invoke-virtual {p1, v0, v1}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;)V

    .line 11
    invoke-virtual {p1, p0}, Ljavax/crypto/Cipher;->doFinal([B)[B

    move-result-object p0
    :try_end_37
    .catch Ljava/lang/Exception; {:try_start_2 .. :try_end_37} :catch_38

    return-object p0

    :catch_38
    move-exception p0

    .line 12
    invoke-virtual {p0}, Ljava/lang/Exception;->printStackTrace()V

    const/4 p0, 0x0

    .line 13
    new-array p0, p0, [B

    return-object p0
.end method

.method private static parseByte2HexStr([B)Ljava/lang/String;
    .registers 6

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

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

    const/4 v1, 0x0

    .line 2
    :goto_6
    array-length v2, p0

    if-ge v1, v2, :cond_33

    .line 3
    aget-byte v2, p0, v1

    and-int/lit16 v2, v2, 0xff

    invoke-static {v2}, Ljava/lang/Integer;->toHexString(I)Ljava/lang/String;

    move-result-object v2

    .line 4
    invoke-virtual {v2}, Ljava/lang/String;->length()I

    move-result v3

    const/4 v4, 0x1

    if-ne v3, v4, :cond_29

    .line 5
    new-instance v3, Ljava/lang/StringBuilder;

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

    const/16 v4, 0x30

    invoke-virtual {v3, v4}, Ljava/lang/StringBuilder;->append(C)Ljava/lang/StringBuilder;

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

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

    move-result-object v2

    .line 6
    :cond_29
    invoke-virtual {v2}, Ljava/lang/String;->toUpperCase()Ljava/lang/String;

    move-result-object v2

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

    add-int/lit8 v1, v1, 0x1

    goto :goto_6

    .line 7
    :cond_33
    invoke-virtual {v0}, Ljava/lang/StringBuffer;->toString()Ljava/lang/String;

    move-result-object p0

    return-object p0
.end method