al.smali

.class public final Lcom/cmcm/safewallet/data/keystore/al;
.super Ljava/lang/Object;
.source "WalletKeyCrypter.java"


# static fields
.field private static final secureRandom:Ljava/security/SecureRandom;


# instance fields
.field public XO:Lcom/cmcm/safewallet/data/keystore/p;


# direct methods
.method static constructor <clinit>()V
    .registers 1

    .prologue
    .line 29
    invoke-static {}, Lorg/bitcoinj/core/Utils;->isAndroidRuntime()Z

    move-result v0

    if-eqz v0, :cond_b

    .line 30
    new-instance v0, Lorg/bitcoinj/crypto/LinuxSecureRandom;

    invoke-direct {v0}, Lorg/bitcoinj/crypto/LinuxSecureRandom;-><init>()V

    .line 32
    :cond_b
    new-instance v0, Ljava/security/SecureRandom;

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

    sput-object v0, Lcom/cmcm/safewallet/data/keystore/al;->secureRandom:Ljava/security/SecureRandom;

    .line 33
    return-void
.end method

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

    .prologue
    .line 25
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    return-void
.end method

.method public static a(Ljava/lang/String;[BLjava/lang/String;)Z
    .registers 4

    .prologue
    .line 182
    sget-object v0, Lorg/bitcoinj/core/Utils;->HEX:Lcom/google/common/io/BaseEncoding;

    invoke-virtual {v0, p2}, Lcom/google/common/io/BaseEncoding;->m(Ljava/lang/CharSequence;)[B

    move-result-object v0

    invoke-static {p1, v0}, Lcom/cmcm/safewallet/data/keystore/al;->e([B[B)Ljava/lang/String;

    move-result-object v0

    .line 183
    invoke-virtual {v0, p0}, Ljava/lang/String;->equalsIgnoreCase(Ljava/lang/String;)Z

    move-result v0

    return v0
.end method

.method private static a([B[B[BILjava/lang/String;)[B
    .registers 9

    .prologue
    const/4 v1, 0x0

    .line 145
    sget-object v0, Lcom/cmcm/safewallet/data/keystore/m;->WJ:Ljava/lang/String;

    invoke-virtual {p4, v0}, Ljava/lang/String;->equalsIgnoreCase(Ljava/lang/String;)Z

    move-result v0

    if-eqz v0, :cond_23

    .line 146
    const-string v0, "AES/CTR/NoPadding"

    .line 152
    :goto_b
    new-instance v2, Ljavax/crypto/spec/SecretKeySpec;

    const-string v3, "AES"

    invoke-direct {v2, p1, v3}, Ljavax/crypto/spec/SecretKeySpec;-><init>([BLjava/lang/String;)V

    .line 153
    new-instance v3, Ljavax/crypto/spec/IvParameterSpec;

    invoke-direct {v3, p0}, Ljavax/crypto/spec/IvParameterSpec;-><init>([B)V

    .line 158
    :try_start_17
    invoke-static {v0}, Ljavax/crypto/Cipher;->getInstance(Ljava/lang/String;)Ljavax/crypto/Cipher;

    move-result-object v0

    .line 159
    invoke-virtual {v0, p3, v2, v3}, Ljavax/crypto/Cipher;->init(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V

    .line 160
    invoke-virtual {v0, p2}, Ljavax/crypto/Cipher;->doFinal([B)[B
    :try_end_21
    .catch Ljava/lang/Exception; {:try_start_17 .. :try_end_21} :catch_30

    move-result-object v0

    .line 165
    :goto_22
    return-object v0

    .line 147
    :cond_23
    sget-object v0, Lcom/cmcm/safewallet/data/keystore/m;->WJ:Ljava/lang/String;

    invoke-virtual {p4, v0}, Ljava/lang/String;->equalsIgnoreCase(Ljava/lang/String;)Z

    move-result v0

    if-eqz v0, :cond_2e

    .line 148
    const-string v0, "AES/CBC/NoPadding"

    goto :goto_b

    :cond_2e
    move-object v0, v1

    .line 150
    goto :goto_22

    .line 165
    :catch_30
    move-exception v0

    move-object v0, v1

    goto :goto_22
.end method

.method public static a([B[B[BLjava/lang/String;)[B
    .registers 5

    .prologue
    .line 134
    const/4 v0, 0x2

    invoke-static {p0, p1, p2, v0, p3}, Lcom/cmcm/safewallet/data/keystore/al;->a([B[B[BILjava/lang/String;)[B

    move-result-object v0

    return-object v0
.end method

.method public static b([B[B[BLjava/lang/String;)[B
    .registers 5

    .prologue
    .line 139
    const/4 v0, 0x1

    invoke-static {p0, p1, p2, v0, p3}, Lcom/cmcm/safewallet/data/keystore/al;->a([B[B[BILjava/lang/String;)[B

    move-result-object v0

    return-object v0
.end method

.method public static e([B[B)Ljava/lang/String;
    .registers 8

    .prologue
    const/16 v5, 0x20

    const/4 v4, 0x0

    .line 171
    const/16 v0, 0x10

    invoke-static {p0, v0, v5}, Lorg/spongycastle/util/Arrays;->copyOfRange([BII)[B

    move-result-object v0

    .line 1187
    array-length v1, v0

    .line 1188
    array-length v2, p1

    .line 1189
    add-int v3, v1, v2

    new-array v3, v3, [B

    .line 1190
    invoke-static {v0, v4, v3, v4, v1}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 1191
    invoke-static {p1, v4, v3, v1, v2}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 172
    new-instance v0, Lorg/spongycastle/crypto/digests/SHA3Digest;

    const/16 v1, 0x100

    invoke-direct {v0, v1}, Lorg/spongycastle/crypto/digests/SHA3Digest;-><init>(I)V

    .line 173
    invoke-virtual {v0}, Lorg/spongycastle/crypto/digests/SHA3Digest;->reset()V

    .line 174
    array-length v1, v3

    invoke-virtual {v0, v3, v4, v1}, Lorg/spongycastle/crypto/digests/SHA3Digest;->update([BII)V

    .line 175
    const/16 v1, 0x80

    new-array v1, v1, [B

    .line 176
    invoke-virtual {v0, v1, v4}, Lorg/spongycastle/crypto/digests/SHA3Digest;->doFinal([BI)I

    .line 177
    sget-object v0, Lorg/bitcoinj/core/Utils;->HEX:Lcom/google/common/io/BaseEncoding;

    invoke-virtual {v0, v1, v5}, Lcom/google/common/io/BaseEncoding;->j([BI)Ljava/lang/String;

    move-result-object v0

    return-object v0
.end method

.method public static kp()[B
    .registers 2

    .prologue
    .line 49
    const/16 v0, 0x10

    new-array v0, v0, [B

    .line 50
    sget-object v1, Lcom/cmcm/safewallet/data/keystore/al;->secureRandom:Ljava/security/SecureRandom;

    invoke-virtual {v1, v0}, Ljava/security/SecureRandom;->nextBytes([B)V

    .line 51
    return-object v0
.end method

.method public static randomSalt()[B
    .registers 2

    .prologue
    .line 39
    const/16 v0, 0x20

    new-array v0, v0, [B

    .line 40
    sget-object v1, Lcom/cmcm/safewallet/data/keystore/al;->secureRandom:Ljava/security/SecureRandom;

    invoke-virtual {v1, v0}, Ljava/security/SecureRandom;->nextBytes([B)V

    .line 41
    return-object v0
.end method


# virtual methods
.method public final N([B)[B
    .registers 5

    .prologue
    .line 69
    iget-object v0, p0, Lcom/cmcm/safewallet/data/keystore/al;->XO:Lcom/cmcm/safewallet/data/keystore/p;

    if-nez v0, :cond_15

    .line 70
    invoke-static {}, Lcom/cmcm/safewallet/data/keystore/al;->randomSalt()[B

    move-result-object v0

    .line 71
    new-instance v1, Lcom/cmcm/safewallet/data/keystore/p;

    sget-object v2, Lorg/bitcoinj/core/Utils;->HEX:Lcom/google/common/io/BaseEncoding;

    invoke-virtual {v2, v0}, Lcom/google/common/io/BaseEncoding;->encode([B)Ljava/lang/String;

    move-result-object v0

    invoke-direct {v1, v0}, Lcom/cmcm/safewallet/data/keystore/p;-><init>(Ljava/lang/String;)V

    iput-object v1, p0, Lcom/cmcm/safewallet/data/keystore/al;->XO:Lcom/cmcm/safewallet/data/keystore/p;

    .line 73
    :cond_15
    iget-object v0, p0, Lcom/cmcm/safewallet/data/keystore/al;->XO:Lcom/cmcm/safewallet/data/keystore/p;

    invoke-virtual {p0, p1, v0}, Lcom/cmcm/safewallet/data/keystore/al;->a([BLcom/cmcm/safewallet/data/keystore/p;)[B

    move-result-object v0

    return-object v0
.end method

.method public final a([BLcom/cmcm/safewallet/data/keystore/p;)[B
    .registers 10

    .prologue
    .line 86
    iput-object p2, p0, Lcom/cmcm/safewallet/data/keystore/al;->XO:Lcom/cmcm/safewallet/data/keystore/p;

    .line 94
    :try_start_2
    invoke-static {}, Lcom/cmcm/safewallet/SWNative;->fB()Lcom/cmcm/safewallet/SWNative;

    move-result-object v0

    .line 1025
    iget-boolean v1, v0, Lcom/cmcm/safewallet/SWNative;->Nk:Z

    if-eqz v1, :cond_2a

    .line 1026
    invoke-virtual {v0}, Lcom/cmcm/safewallet/SWNative;->supported()Z

    move-result v0

    .line 96
    :goto_e
    if-eqz v0, :cond_2c

    .line 97
    invoke-static {}, Lcom/cmcm/safewallet/SWNative;->fB()Lcom/cmcm/safewallet/SWNative;

    move-result-object v0

    sget-object v1, Lorg/bitcoinj/core/Utils;->HEX:Lcom/google/common/io/BaseEncoding;

    iget-object v2, p2, Lcom/cmcm/safewallet/data/keystore/p;->salt:Ljava/lang/String;

    invoke-virtual {v1, v2}, Lcom/google/common/io/BaseEncoding;->m(Ljava/lang/CharSequence;)[B

    move-result-object v2

    iget v3, p2, Lcom/cmcm/safewallet/data/keystore/p;->n:I

    iget v4, p2, Lcom/cmcm/safewallet/data/keystore/p;->r:I

    iget v5, p2, Lcom/cmcm/safewallet/data/keystore/p;->p:I

    const/16 v6, 0x20

    move-object v1, p1

    invoke-virtual/range {v0 .. v6}, Lcom/cmcm/safewallet/SWNative;->scryptN([B[BIIII)[B

    move-result-object v0

    .line 103
    :goto_29
    return-object v0

    .line 1029
    :cond_2a
    const/4 v0, 0x0

    goto :goto_e

    .line 99
    :cond_2c
    sget-object v0, Lorg/bitcoinj/core/Utils;->HEX:Lcom/google/common/io/BaseEncoding;

    iget-object v1, p2, Lcom/cmcm/safewallet/data/keystore/p;->salt:Ljava/lang/String;

    invoke-virtual {v0, v1}, Lcom/google/common/io/BaseEncoding;->m(Ljava/lang/CharSequence;)[B

    move-result-object v1

    iget v2, p2, Lcom/cmcm/safewallet/data/keystore/p;->n:I

    iget v3, p2, Lcom/cmcm/safewallet/data/keystore/p;->r:I

    iget v4, p2, Lcom/cmcm/safewallet/data/keystore/p;->p:I

    const/16 v5, 0x20

    move-object v0, p1

    invoke-static/range {v0 .. v5}, Lorg/spongycastle/crypto/generators/SCrypt;->generate([B[BIIII)[B
    :try_end_40
    .catch Ljava/lang/Exception; {:try_start_2 .. :try_end_40} :catch_42
    .catchall {:try_start_2 .. :try_end_40} :catchall_4b

    move-result-object v0

    goto :goto_29

    .line 104
    :catch_42
    move-exception v0

    .line 105
    :try_start_43
    new-instance v1, Lorg/bitcoinj/crypto/KeyCrypterException;

    const-string v2, "Could not generate key from password and salt."

    invoke-direct {v1, v2, v0}, Lorg/bitcoinj/crypto/KeyCrypterException;-><init>(Ljava/lang/String;Ljava/lang/Throwable;)V

    throw v1
    :try_end_4b
    .catchall {:try_start_43 .. :try_end_4b} :catchall_4b

    .line 106
    :catchall_4b
    move-exception v0

    throw v0
.end method