PRNGFixes.smali

.class public final Lcom/subgraph/orchid/crypto/PRNGFixes;
.super Ljava/lang/Object;
.source "PRNGFixes.java"


# static fields
.field private static final bFS:[B

.field private static final logger:Ljava/util/logging/Logger;


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

    .prologue
    .line 38
    const-class v0, Lcom/subgraph/orchid/crypto/PRNGFixes;

    invoke-virtual {v0}, Ljava/lang/Class;->getName()Ljava/lang/String;

    move-result-object v0

    invoke-static {v0}, Ljava/util/logging/Logger;->getLogger(Ljava/lang/String;)Ljava/util/logging/Logger;

    move-result-object v0

    sput-object v0, Lcom/subgraph/orchid/crypto/PRNGFixes;->logger:Ljava/util/logging/Logger;

    .line 43
    invoke-static {}, Lcom/subgraph/orchid/crypto/PRNGFixes;->LX()[B

    move-result-object v0

    sput-object v0, Lcom/subgraph/orchid/crypto/PRNGFixes;->bFS:[B

    .line 42
    return-void
.end method

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

    .prologue
    .line 46
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    return-void
.end method

.method private static LS()[B
    .registers 4

    .prologue
    .line 294
    :try_start_0
    new-instance v0, Ljava/io/ByteArrayOutputStream;

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

    .line 295
    new-instance v1, Ljava/io/DataOutputStream;

    invoke-direct {v1, v0}, Ljava/io/DataOutputStream;-><init>(Ljava/io/OutputStream;)V

    .line 297
    invoke-static {}, Ljava/lang/System;->currentTimeMillis()J

    move-result-wide v2

    invoke-virtual {v1, v2, v3}, Ljava/io/DataOutputStream;->writeLong(J)V

    .line 298
    invoke-static {}, Ljava/lang/System;->nanoTime()J

    move-result-wide v2

    invoke-virtual {v1, v2, v3}, Ljava/io/DataOutputStream;->writeLong(J)V

    .line 301
    sget-object v2, Lcom/subgraph/orchid/crypto/PRNGFixes;->bFS:[B

    invoke-virtual {v1, v2}, Ljava/io/DataOutputStream;->write([B)V

    .line 302
    invoke-virtual {v1}, Ljava/io/DataOutputStream;->close()V

    .line 303
    invoke-virtual {v0}, Ljava/io/ByteArrayOutputStream;->toByteArray()[B
    :try_end_23
    .catch Ljava/io/IOException; {:try_start_0 .. :try_end_23} :catch_25

    move-result-object v0

    return-object v0

    .line 304
    :catch_25
    move-exception v0

    .line 305
    new-instance v1, Ljava/lang/SecurityException;

    const-string v2, "Failed to generate seed"

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

    throw v1
.end method

.method private static LU()Ljava/lang/String;
    .registers 3

    .prologue
    const/4 v1, 0x0

    .line 318
    :try_start_1
    const-string v0, "android.os.Build"

    invoke-static {v0}, Ljava/lang/Class;->forName(Ljava/lang/String;)Ljava/lang/Class;

    move-result-object v0

    const-string v2, "SERIAL"

    invoke-virtual {v0, v2}, Ljava/lang/Class;->getField(Ljava/lang/String;)Ljava/lang/reflect/Field;

    move-result-object v0

    const/4 v2, 0x0

    invoke-virtual {v0, v2}, Ljava/lang/reflect/Field;->get(Ljava/lang/Object;)Ljava/lang/Object;

    move-result-object v0

    check-cast v0, Ljava/lang/String;
    :try_end_14
    .catch Ljava/lang/Exception; {:try_start_1 .. :try_end_14} :catch_15

    .line 321
    :goto_14
    return-object v0

    :catch_15
    move-exception v0

    move-object v0, v1

    goto :goto_14
.end method

.method private static LV()I
    .registers 4

    .prologue
    .line 327
    :try_start_0
    const-string v0, "android.os.Build"

    invoke-static {v0}, Ljava/lang/Class;->forName(Ljava/lang/String;)Ljava/lang/Class;

    move-result-object v0

    const-string v1, "VERSION"

    invoke-virtual {v0, v1}, Ljava/lang/Class;->getField(Ljava/lang/String;)Ljava/lang/reflect/Field;

    move-result-object v0

    invoke-virtual {v0}, Ljava/lang/Object;->getClass()Ljava/lang/Class;

    move-result-object v0

    const-string v1, "SDK_INT"

    invoke-virtual {v0, v1}, Ljava/lang/Class;->getField(Ljava/lang/String;)Ljava/lang/reflect/Field;

    move-result-object v0

    const/4 v1, 0x0

    invoke-virtual {v0, v1}, Ljava/lang/reflect/Field;->getInt(Ljava/lang/Object;)I
    :try_end_1a
    .catch Ljava/lang/Exception; {:try_start_0 .. :try_end_1a} :catch_1c

    move-result v0

    .line 330
    :goto_1b
    return v0

    .line 328
    :catch_1c
    move-exception v0

    .line 329
    sget-object v1, Lcom/subgraph/orchid/crypto/PRNGFixes;->logger:Ljava/util/logging/Logger;

    new-instance v2, Ljava/lang/StringBuilder;

    const-string v3, "Could not get Build.VERSION.SDK_INT value : "

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

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

    move-result-object v0

    invoke-virtual {v0}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v0

    invoke-virtual {v1, v0}, Ljava/util/logging/Logger;->warning(Ljava/lang/String;)V

    .line 330
    const/4 v0, 0x0

    goto :goto_1b
.end method

.method private static LW()Ljava/lang/String;
    .registers 4

    .prologue
    .line 336
    :try_start_0
    const-string v0, "android.os.Build"

    invoke-static {v0}, Ljava/lang/Class;->forName(Ljava/lang/String;)Ljava/lang/Class;

    move-result-object v0

    const-string v1, "FINGERPRINT"

    invoke-virtual {v0, v1}, Ljava/lang/Class;->getField(Ljava/lang/String;)Ljava/lang/reflect/Field;

    move-result-object v0

    const/4 v1, 0x0

    invoke-virtual {v0, v1}, Ljava/lang/reflect/Field;->get(Ljava/lang/Object;)Ljava/lang/Object;

    move-result-object v0

    check-cast v0, Ljava/lang/String;
    :try_end_13
    .catch Ljava/lang/Exception; {:try_start_0 .. :try_end_13} :catch_14

    .line 339
    :goto_13
    return-object v0

    .line 337
    :catch_14
    move-exception v0

    .line 338
    sget-object v1, Lcom/subgraph/orchid/crypto/PRNGFixes;->logger:Ljava/util/logging/Logger;

    new-instance v2, Ljava/lang/StringBuilder;

    const-string v3, "Could not get BUILD.FINGERPRINT value : "

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

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

    move-result-object v0

    invoke-virtual {v0}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v0

    invoke-virtual {v1, v0}, Ljava/util/logging/Logger;->warning(Ljava/lang/String;)V

    .line 339
    const-string v0, ""

    goto :goto_13
.end method

.method private static LX()[B
    .registers 2

    .prologue
    .line 344
    new-instance v0, Ljava/lang/StringBuilder;

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

    .line 346
    invoke-static {}, Lcom/subgraph/orchid/crypto/PRNGFixes;->LW()Ljava/lang/String;

    move-result-object v1

    .line 347
    if-eqz v1, :cond_e

    .line 348
    invoke-virtual {v0, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    .line 350
    :cond_e
    invoke-static {}, Lcom/subgraph/orchid/crypto/PRNGFixes;->LU()Ljava/lang/String;

    move-result-object v1

    .line 351
    if-eqz v1, :cond_17

    .line 352
    invoke-virtual {v0, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    .line 355
    :cond_17
    :try_start_17
    invoke-virtual {v0}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v0

    const-string v1, "UTF-8"

    invoke-virtual {v0, v1}, Ljava/lang/String;->getBytes(Ljava/lang/String;)[B
    :try_end_20
    .catch Ljava/io/UnsupportedEncodingException; {:try_start_17 .. :try_end_20} :catch_22

    move-result-object v0

    return-object v0

    .line 357
    :catch_22
    move-exception v0

    new-instance v0, Ljava/lang/RuntimeException;

    const-string v1, "UTF-8 encoding not supported"

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

    throw v0
.end method

.method static synthetic LY()[B
    .registers 1

    .prologue
    .line 36
    invoke-static {}, Lcom/subgraph/orchid/crypto/PRNGFixes;->LS()[B

    move-result-object v0

    return-object v0
.end method

.method static synthetic access$000()Ljava/util/logging/Logger;
    .registers 1

    .prologue
    .line 36
    sget-object v0, Lcom/subgraph/orchid/crypto/PRNGFixes;->logger:Ljava/util/logging/Logger;

    return-object v0
.end method

.method public static apply()V
    .registers 9

    .prologue
    const/16 v8, 0x400

    const/16 v7, 0x12

    const/4 v6, 0x1

    const/4 v5, 0x0

    .line 1065
    invoke-static {}, Lcom/subgraph/orchid/crypto/PRNGFixes;->LV()I

    move-result v0

    .line 1066
    const/16 v1, 0x10

    if-lt v0, v1, :cond_10

    if-le v0, v7, :cond_69

    .line 1102
    :cond_10
    invoke-static {}, Lcom/subgraph/orchid/crypto/PRNGFixes;->LV()I

    move-result v0

    if-gt v0, v7, :cond_11c

    .line 1109
    const-string v0, "SecureRandom.SHA1PRNG"

    .line 1110
    invoke-static {v0}, Ljava/security/Security;->getProviders(Ljava/lang/String;)[Ljava/security/Provider;

    move-result-object v0

    .line 1111
    if-eqz v0, :cond_2f

    array-length v1, v0

    if-lez v1, :cond_2f

    const-class v1, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandomProvider;

    aget-object v0, v0, v5

    .line 1114
    invoke-virtual {v0}, Ljava/lang/Object;->getClass()Ljava/lang/Class;

    move-result-object v0

    .line 1113
    invoke-virtual {v1, v0}, Ljava/lang/Object;->equals(Ljava/lang/Object;)Z

    move-result v0

    if-nez v0, :cond_37

    .line 1115
    :cond_2f
    new-instance v0, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandomProvider;

    invoke-direct {v0}, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandomProvider;-><init>()V

    invoke-static {v0, v6}, Ljava/security/Security;->insertProviderAt(Ljava/security/Provider;I)I

    .line 1121
    :cond_37
    new-instance v0, Ljava/security/SecureRandom;

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

    .line 1122
    const-class v1, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandomProvider;

    .line 1123
    invoke-virtual {v0}, Ljava/security/SecureRandom;->getProvider()Ljava/security/Provider;

    move-result-object v2

    invoke-virtual {v2}, Ljava/lang/Object;->getClass()Ljava/lang/Class;

    move-result-object v2

    .line 1122
    invoke-virtual {v1, v2}, Ljava/lang/Object;->equals(Ljava/lang/Object;)Z

    move-result v1

    if-nez v1, :cond_e0

    .line 1124
    new-instance v1, Ljava/lang/SecurityException;

    new-instance v2, Ljava/lang/StringBuilder;

    const-string v3, "new SecureRandom() backed by wrong Provider: "

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

    .line 1126
    invoke-virtual {v0}, Ljava/security/SecureRandom;->getProvider()Ljava/security/Provider;

    move-result-object v0

    invoke-virtual {v0}, Ljava/lang/Object;->getClass()Ljava/lang/Class;

    move-result-object v0

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

    move-result-object v0

    invoke-virtual {v0}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v0

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

    throw v1

    .line 1074
    :cond_69
    :try_start_69
    const-string v0, "org.apache.harmony.xnet.provider.jsse.NativeCrypto"

    invoke-static {v0}, Ljava/lang/Class;->forName(Ljava/lang/String;)Ljava/lang/Class;

    move-result-object v0

    const-string v1, "RAND_seed"

    const/4 v2, 0x1

    new-array v2, v2, [Ljava/lang/Class;

    const/4 v3, 0x0

    const-class v4, [B

    aput-object v4, v2, v3

    .line 1075
    invoke-virtual {v0, v1, v2}, Ljava/lang/Class;->getMethod(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;

    move-result-object v0

    const/4 v1, 0x0

    const/4 v2, 0x1

    new-array v2, v2, [Ljava/lang/Object;

    const/4 v3, 0x0

    .line 1076
    invoke-static {}, Lcom/subgraph/orchid/crypto/PRNGFixes;->LS()[B

    move-result-object v4

    aput-object v4, v2, v3

    invoke-virtual {v0, v1, v2}, Ljava/lang/reflect/Method;->invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;

    .line 1079
    const-string v0, "org.apache.harmony.xnet.provider.jsse.NativeCrypto"

    invoke-static {v0}, Ljava/lang/Class;->forName(Ljava/lang/String;)Ljava/lang/Class;

    move-result-object v0

    const-string v1, "RAND_load_file"

    const/4 v2, 0x2

    new-array v2, v2, [Ljava/lang/Class;

    const/4 v3, 0x0

    const-class v4, Ljava/lang/String;

    aput-object v4, v2, v3

    const/4 v3, 0x1

    sget-object v4, Ljava/lang/Long;->TYPE:Ljava/lang/Class;

    aput-object v4, v2, v3

    .line 1081
    invoke-virtual {v0, v1, v2}, Ljava/lang/Class;->getMethod(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;

    move-result-object v0

    const/4 v1, 0x0

    const/4 v2, 0x2

    new-array v2, v2, [Ljava/lang/Object;

    const/4 v3, 0x0

    const-string v4, "/dev/urandom"

    aput-object v4, v2, v3

    const/4 v3, 0x1

    const/16 v4, 0x400

    .line 1082
    invoke-static {v4}, Ljava/lang/Integer;->valueOf(I)Ljava/lang/Integer;

    move-result-object v4

    aput-object v4, v2, v3

    invoke-virtual {v0, v1, v2}, Ljava/lang/reflect/Method;->invoke(Ljava/lang/Object;[Ljava/lang/Object;)Ljava/lang/Object;

    move-result-object v0

    check-cast v0, Ljava/lang/Integer;

    .line 1079
    invoke-virtual {v0}, Ljava/lang/Integer;->intValue()I

    move-result v0

    .line 1083
    if-eq v0, v8, :cond_10

    .line 1084
    new-instance v1, Ljava/io/IOException;

    new-instance v2, Ljava/lang/StringBuilder;

    const-string v3, "Unexpected number of bytes read from Linux PRNG: "

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

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

    move-result-object v0

    invoke-virtual {v0}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v0

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

    throw v1
    :try_end_d7
    .catch Ljava/lang/Exception; {:try_start_69 .. :try_end_d7} :catch_d7

    .line 1088
    :catch_d7
    move-exception v0

    .line 1089
    new-instance v1, Ljava/lang/SecurityException;

    const-string v2, "Failed to seed OpenSSL PRNG"

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

    throw v1

    .line 1131
    :cond_e0
    :try_start_e0
    const-string v0, "SHA1PRNG"

    invoke-static {v0}, Ljava/security/SecureRandom;->getInstance(Ljava/lang/String;)Ljava/security/SecureRandom;
    :try_end_e5
    .catch Ljava/security/NoSuchAlgorithmException; {:try_start_e0 .. :try_end_e5} :catch_113

    move-result-object v0

    .line 1135
    const-class v1, Lcom/subgraph/orchid/crypto/PRNGFixes$LinuxPRNGSecureRandomProvider;

    .line 1136
    invoke-virtual {v0}, Ljava/security/SecureRandom;->getProvider()Ljava/security/Provider;

    move-result-object v2

    invoke-virtual {v2}, Ljava/lang/Object;->getClass()Ljava/lang/Class;

    move-result-object v2

    .line 1135
    invoke-virtual {v1, v2}, Ljava/lang/Object;->equals(Ljava/lang/Object;)Z

    move-result v1

    if-nez v1, :cond_11c

    .line 1137
    new-instance v1, Ljava/lang/SecurityException;

    new-instance v2, Ljava/lang/StringBuilder;

    const-string v3, "SecureRandom.getInstance(\"SHA1PRNG\") backed by wrong Provider: "

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

    .line 1139
    invoke-virtual {v0}, Ljava/security/SecureRandom;->getProvider()Ljava/security/Provider;

    move-result-object v0

    invoke-virtual {v0}, Ljava/lang/Object;->getClass()Ljava/lang/Class;

    move-result-object v0

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

    move-result-object v0

    invoke-virtual {v0}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v0

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

    throw v1

    .line 1132
    :catch_113
    move-exception v0

    .line 1133
    new-instance v1, Ljava/lang/SecurityException;

    const-string v2, "SHA1PRNG not available"

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

    throw v1

    .line 56
    :cond_11c
    return-void
.end method