AESCoder.smali

.class public Lcom/cmcm/support/util/AESCoder;
.super Ljava/lang/Object;


# static fields
.field private static final DEFAULT_CIPHER_ALGORITHM:Ljava/lang/String; = "AES/ECB/PKCS5Padding"

.field private static final KEY_ALGORITHM:Ljava/lang/String; = "AES"


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

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

    return-void
.end method

.method public static decrypt([BLjava/security/Key;)[B
    .registers 3

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

    invoke-static {p0, p1, v0}, Lcom/cmcm/support/util/AESCoder;->decrypt([BLjava/security/Key;Ljava/lang/String;)[B

    move-result-object v0

    return-object v0
.end method

.method public static decrypt([BLjava/security/Key;Ljava/lang/String;)[B
    .registers 5

    invoke-static {p2}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v0

    const/4 v1, 0x2

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

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

    move-result-object v0

    return-object v0
.end method

.method public static decrypt([B[B)[B
    .registers 3

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

    invoke-static {p0, p1, v0}, Lcom/cmcm/support/util/AESCoder;->decrypt([B[BLjava/lang/String;)[B

    move-result-object v0

    return-object v0
.end method

.method public static decrypt([B[BLjava/lang/String;)[B
    .registers 4

    invoke-static {p1}, Lcom/cmcm/support/util/AESCoder;->toKey([B)Ljava/security/Key;

    move-result-object v0

    invoke-static {p0, v0, p2}, Lcom/cmcm/support/util/AESCoder;->decrypt([BLjava/security/Key;Ljava/lang/String;)[B

    move-result-object v0

    return-object v0
.end method

.method public static decrypt([B[B[BLjava/lang/String;)[B
    .registers 8

    invoke-static {p3}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v0

    invoke-static {p1}, Lcom/cmcm/support/util/AESCoder;->toKey([B)Ljava/security/Key;

    move-result-object v1

    new-instance v2, Ljavax/crypto/spec/IvParameterSpec;

    invoke-direct {v2, p2}, Ljavax/crypto/spec/IvParameterSpec;-><init>([B)V

    const/4 v3, 0x2

    invoke-virtual {v0, v3, v1, v2}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V

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

    move-result-object v0

    return-object v0
.end method

.method public static encrypt([BLjava/security/Key;)[B
    .registers 3

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

    invoke-static {p0, p1, v0}, Lcom/cmcm/support/util/AESCoder;->encrypt([BLjava/security/Key;Ljava/lang/String;)[B

    move-result-object v0

    return-object v0
.end method

.method public static encrypt([BLjava/security/Key;Ljava/lang/String;)[B
    .registers 5
    .annotation build Landroid/annotation/SuppressLint;
        value = {
            "TrulyRandom"
        }
    .end annotation

    invoke-static {p2}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v0

    const/4 v1, 0x1

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

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

    move-result-object v0

    return-object v0
.end method

.method public static encrypt([B[B)[B
    .registers 3

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

    invoke-static {p0, p1, v0}, Lcom/cmcm/support/util/AESCoder;->encrypt([B[BLjava/lang/String;)[B

    move-result-object v0

    return-object v0
.end method

.method public static encrypt([B[BLjava/lang/String;)[B
    .registers 4

    invoke-static {p1}, Lcom/cmcm/support/util/AESCoder;->toKey([B)Ljava/security/Key;

    move-result-object v0

    invoke-static {p0, v0, p2}, Lcom/cmcm/support/util/AESCoder;->encrypt([BLjava/security/Key;Ljava/lang/String;)[B

    move-result-object v0

    return-object v0
.end method

.method public static encrypt([B[B[BLjava/lang/String;)[B
    .registers 8

    invoke-static {p3}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v0

    invoke-static {p1}, Lcom/cmcm/support/util/AESCoder;->toKey([B)Ljava/security/Key;

    move-result-object v1

    new-instance v2, Ljavax/crypto/spec/IvParameterSpec;

    invoke-direct {v2, p2}, Ljavax/crypto/spec/IvParameterSpec;-><init>([B)V

    const/4 v3, 0x1

    invoke-virtual {v0, v3, v1, v2}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V

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

    move-result-object v0

    return-object v0
.end method

.method public static parseByte2HexStr([B)Ljava/lang/String;
    .registers 6
    .annotation build Landroid/annotation/SuppressLint;
        value = {
            "DefaultLocale"
        }
    .end annotation

    new-instance v2, Ljava/lang/StringBuffer;

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

    const/4 v0, 0x0

    :goto_6
    array-length v1, p0

    if-ge v0, v1, :cond_35

    aget-byte v1, p0, v0

    and-int/lit16 v1, v1, 0xff

    invoke-static {v1}, Ljava/lang/Integer;->toHexString(I)Ljava/lang/String;

    move-result-object v1

    invoke-virtual {v1}, Ljava/lang/String;->length()I

    move-result v3

    const/4 v4, 0x1

    if-ne v3, v4, :cond_2b

    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;

    move-result-object v3

    invoke-virtual {v3, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v1

    invoke-virtual {v1}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v1

    :cond_2b
    invoke-virtual {v1}, Ljava/lang/String;->toUpperCase()Ljava/lang/String;

    move-result-object v1

    invoke-virtual {v2, v1}, Ljava/lang/StringBuffer;->append(Ljava/lang/String;)Ljava/lang/StringBuffer;

    add-int/lit8 v0, v0, 0x1

    goto :goto_6

    :cond_35
    invoke-virtual {v2}, Ljava/lang/StringBuffer;->toString()Ljava/lang/String;

    move-result-object v0

    return-object v0
.end method

.method private static toKey([B)Ljava/security/Key;
    .registers 3

    new-instance v0, Ljavax/crypto/spec/SecretKeySpec;

    const-string/jumbo v1, "AES"

    invoke-direct {v0, p0, v1}, Ljavax/crypto/spec/SecretKeySpec;-><init>([BLjava/lang/String;)V

    return-object v0
.end method