PRNGFixes$LinuxPRNGSecureRandom.smali

.class public Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;
.super Ljava/security/SecureRandomSpi;
.source "PRNGFixes.java"


# static fields
.field private static final bFT:Ljava/io/File;

.field private static bFU:Ljava/io/DataInputStream; = null

.field private static bFV:Ljava/io/OutputStream; = null

.field private static final sLock:Ljava/lang/Object;

.field private static final serialVersionUID:J = 0x1L


# instance fields
.field private mSeeded:Z


# direct methods
.method static constructor <clinit>()V
    .registers 2

    .prologue
    .line 186
    new-instance v0, Ljava/io/File;

    const-string v1, "/dev/urandom"

    invoke-direct {v0, v1}, Ljava/io/File;-><init>(Ljava/lang/String;)V

    sput-object v0, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->bFT:Ljava/io/File;

    .line 188
    new-instance v0, Ljava/lang/Object;

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

    sput-object v0, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->sLock:Ljava/lang/Object;

    return-void
.end method

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

    .prologue
    .line 169
    invoke-direct {p0}, Ljava/security/SecureRandomSpi;-><init>()V

    return-void
.end method

.method private static LZ()Ljava/io/DataInputStream;
    .registers 5

    .prologue
    .line 260
    sget-object v1, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->sLock:Ljava/lang/Object;

    monitor-enter v1

    .line 261
    :try_start_3
    sget-object v0, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->bFU:Ljava/io/DataInputStream;
    :try_end_5
    .catchall {:try_start_3 .. :try_end_5} :catchall_37

    if-nez v0, :cond_15

    .line 267
    :try_start_7
    new-instance v0, Ljava/io/DataInputStream;

    new-instance v2, Ljava/io/FileInputStream;

    sget-object v3, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->bFT:Ljava/io/File;

    invoke-direct {v2, v3}, Ljava/io/FileInputStream;-><init>(Ljava/io/File;)V

    invoke-direct {v0, v2}, Ljava/io/DataInputStream;-><init>(Ljava/io/InputStream;)V

    sput-object v0, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->bFU:Ljava/io/DataInputStream;
    :try_end_15
    .catch Ljava/io/IOException; {:try_start_7 .. :try_end_15} :catch_19
    .catchall {:try_start_7 .. :try_end_15} :catchall_37

    .line 274
    :cond_15
    :try_start_15
    sget-object v0, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->bFU:Ljava/io/DataInputStream;

    monitor-exit v1

    return-object v0

    .line 269
    :catch_19
    move-exception v0

    .line 270
    new-instance v2, Ljava/lang/SecurityException;

    new-instance v3, Ljava/lang/StringBuilder;

    const-string v4, "Failed to open "

    invoke-direct {v3, v4}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V

    sget-object v4, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->bFT:Ljava/io/File;

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

    move-result-object v3

    const-string v4, " for reading"

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

    move-result-object v3

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

    move-result-object v3

    invoke-direct {v2, v3, v0}, Ljava/lang/SecurityException;-><init>(Ljava/lang/String;Ljava/lang/Throwable;)V

    throw v2

    .line 275
    :catchall_37
    move-exception v0

    monitor-exit v1
    :try_end_39
    .catchall {:try_start_15 .. :try_end_39} :catchall_37

    throw v0
.end method

.method private static Ma()Ljava/io/OutputStream;
    .registers 3

    .prologue
    .line 279
    sget-object v1, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->sLock:Ljava/lang/Object;

    monitor-enter v1

    .line 280
    :try_start_3
    sget-object v0, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->bFV:Ljava/io/OutputStream;

    if-nez v0, :cond_10

    .line 281
    new-instance v0, Ljava/io/FileOutputStream;

    sget-object v2, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->bFT:Ljava/io/File;

    invoke-direct {v0, v2}, Ljava/io/FileOutputStream;-><init>(Ljava/io/File;)V

    sput-object v0, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->bFV:Ljava/io/OutputStream;

    .line 283
    :cond_10
    sget-object v0, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->bFV:Ljava/io/OutputStream;

    monitor-exit v1

    return-object v0

    .line 284
    :catchall_14
    move-exception v0

    monitor-exit v1
    :try_end_16
    .catchall {:try_start_3 .. :try_end_16} :catchall_14

    throw v0
.end method


# virtual methods
.method protected engineGenerateSeed(I)[B
    .registers 3

    .prologue
    .line 254
    new-array v0, p1, [B

    .line 255
    invoke-virtual {p0, v0}, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->engineNextBytes([B)V

    .line 256
    return-object v0
.end method

.method protected engineNextBytes([B)V
    .registers 6

    .prologue
    .line 233
    iget-boolean v0, p0, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->mSeeded:Z

    if-nez v0, :cond_b

    .line 235
    invoke-static {}, Lcom/subgraph/orchid/crypto/PRNGFixes;->LY()[B

    move-result-object v0

    invoke-virtual {p0, v0}, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->engineSetSeed([B)V

    .line 240
    :cond_b
    :try_start_b
    sget-object v1, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->sLock:Ljava/lang/Object;

    monitor-enter v1
    :try_end_e
    .catch Ljava/io/IOException; {:try_start_b .. :try_end_e} :catch_1c

    .line 241
    :try_start_e
    invoke-static {}, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->LZ()Ljava/io/DataInputStream;

    move-result-object v2

    .line 242
    monitor-exit v1
    :try_end_13
    .catchall {:try_start_e .. :try_end_13} :catchall_19

    .line 243
    :try_start_13
    monitor-enter v2
    :try_end_14
    .catch Ljava/io/IOException; {:try_start_13 .. :try_end_14} :catch_1c

    .line 244
    :try_start_14
    invoke-virtual {v2, p1}, Ljava/io/DataInputStream;->readFully([B)V

    .line 245
    monitor-exit v2
    :try_end_18
    .catchall {:try_start_14 .. :try_end_18} :catchall_34

    return-void

    .line 242
    :catchall_19
    move-exception v0

    :try_start_1a
    monitor-exit v1
    :try_end_1b
    .catchall {:try_start_1a .. :try_end_1b} :catchall_19

    :try_start_1b
    throw v0
    :try_end_1c
    .catch Ljava/io/IOException; {:try_start_1b .. :try_end_1c} :catch_1c

    .line 246
    :catch_1c
    move-exception v0

    .line 247
    new-instance v1, Ljava/lang/SecurityException;

    new-instance v2, Ljava/lang/StringBuilder;

    const-string v3, "Failed to read from "

    invoke-direct {v2, v3}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V

    sget-object v3, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->bFT:Ljava/io/File;

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

    move-result-object v2

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

    move-result-object v2

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

    throw v1

    .line 245
    :catchall_34
    move-exception v0

    :try_start_35
    monitor-exit v2
    :try_end_36
    .catchall {:try_start_35 .. :try_end_36} :catchall_34

    :try_start_36
    throw v0
    :try_end_37
    .catch Ljava/io/IOException; {:try_start_36 .. :try_end_37} :catch_1c
.end method

.method protected engineSetSeed([B)V
    .registers 6

    .prologue
    const/4 v3, 0x1

    .line 217
    :try_start_1
    sget-object v1, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->sLock:Ljava/lang/Object;

    monitor-enter v1
    :try_end_4
    .catch Ljava/io/IOException; {:try_start_1 .. :try_end_4} :catch_15
    .catchall {:try_start_1 .. :try_end_4} :catchall_31

    .line 218
    :try_start_4
    invoke-static {}, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->Ma()Ljava/io/OutputStream;

    move-result-object v0

    .line 219
    monitor-exit v1
    :try_end_9
    .catchall {:try_start_4 .. :try_end_9} :catchall_12

    .line 220
    :try_start_9
    invoke-virtual {v0, p1}, Ljava/io/OutputStream;->write([B)V

    .line 221
    invoke-virtual {v0}, Ljava/io/OutputStream;->flush()V
    :try_end_f
    .catch Ljava/io/IOException; {:try_start_9 .. :try_end_f} :catch_15
    .catchall {:try_start_9 .. :try_end_f} :catchall_31

    .line 227
    iput-boolean v3, p0, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->mSeeded:Z

    .line 228
    :goto_11
    return-void

    .line 219
    :catchall_12
    move-exception v0

    :try_start_13
    monitor-exit v1
    :try_end_14
    .catchall {:try_start_13 .. :try_end_14} :catchall_12

    :try_start_14
    throw v0
    :try_end_15
    .catch Ljava/io/IOException; {:try_start_14 .. :try_end_15} :catch_15
    .catchall {:try_start_14 .. :try_end_15} :catchall_31

    .line 225
    :catch_15
    move-exception v0

    :try_start_16
    # getter for: Lcom/subgraph/orchid/crypto/PRNGFixes;->logger:Ljava/util/logging/Logger;
    invoke-static {}, Lcom/subgraph/orchid/crypto/PRNGFixes;->access$000()Ljava/util/logging/Logger;

    move-result-object v0

    new-instance v1, Ljava/lang/StringBuilder;

    const-string v2, "Failed to mix seed into "

    invoke-direct {v1, v2}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V

    sget-object v2, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->bFT:Ljava/io/File;

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

    move-result-object v1

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

    move-result-object v1

    invoke-virtual {v0, v1}, Ljava/util/logging/Logger;->warning(Ljava/lang/String;)V
    :try_end_2e
    .catchall {:try_start_16 .. :try_end_2e} :catchall_31

    .line 227
    iput-boolean v3, p0, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->mSeeded:Z

    goto :goto_11

    :catchall_31
    move-exception v0

    iput-boolean v3, p0, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandom;->mSeeded:Z

    throw v0
.end method