n.smali

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

# interfaces
.implements Lcom/subgraph/orchid/crypto/k;


# static fields
.field private static bGc:I

.field private static bGd:I

.field private static bGe:Ljava/nio/charset/Charset;


# instance fields
.field private final bCk:Lcom/subgraph/orchid/crypto/q;

.field public final bGf:Lcom/subgraph/orchid/d/c;

.field public final bGg:[B

.field private final bGh:[B

.field public final bGi:[B

.field private bGj:Z


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

    .prologue
    .line 23
    const/16 v0, 0xcc

    sput v0, Lcom/subgraph/orchid/crypto/n;->bGc:I

    .line 24
    const/16 v0, 0xb2

    sput v0, Lcom/subgraph/orchid/crypto/n;->bGd:I

    .line 25
    const-string v0, "ISO-8859-1"

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

    move-result-object v0

    sput-object v0, Lcom/subgraph/orchid/crypto/n;->bGe:Ljava/nio/charset/Charset;

    return-void
.end method

.method public constructor <init>(Lcom/subgraph/orchid/d/c;[B)V
    .registers 8

    .prologue
    const/16 v4, 0x20

    const/16 v3, 0x1f

    .line 33
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 27
    new-instance v0, Lcom/subgraph/orchid/crypto/q;

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

    iput-object v0, p0, Lcom/subgraph/orchid/crypto/n;->bCk:Lcom/subgraph/orchid/crypto/q;

    .line 34
    iput-object p1, p0, Lcom/subgraph/orchid/crypto/n;->bGf:Lcom/subgraph/orchid/d/c;

    .line 35
    iput-object p2, p0, Lcom/subgraph/orchid/crypto/n;->bGg:[B

    .line 1055
    iget-object v0, p0, Lcom/subgraph/orchid/crypto/n;->bCk:Lcom/subgraph/orchid/crypto/q;

    invoke-virtual {v0, v4}, Lcom/subgraph/orchid/crypto/q;->getBytes(I)[B

    move-result-object v0

    .line 1056
    const/4 v1, 0x0

    aget-byte v2, v0, v1

    and-int/lit16 v2, v2, 0xf8

    int-to-byte v2, v2

    aput-byte v2, v0, v1

    .line 1057
    aget-byte v1, v0, v3

    and-int/lit8 v1, v1, 0x7f

    int-to-byte v1, v1

    aput-byte v1, v0, v3

    .line 1058
    aget-byte v1, v0, v3

    or-int/lit8 v1, v1, 0x40

    int-to-byte v1, v1

    aput-byte v1, v0, v3

    .line 36
    iput-object v0, p0, Lcom/subgraph/orchid/crypto/n;->bGh:[B

    .line 37
    iget-object v0, p0, Lcom/subgraph/orchid/crypto/n;->bGh:[B

    .line 1063
    new-array v1, v4, [B

    .line 1064
    invoke-static {v1, v0}, Lcom/subgraph/orchid/crypto/g;->f([B[B)I

    .line 37
    iput-object v1, p0, Lcom/subgraph/orchid/crypto/n;->bGi:[B

    .line 38
    return-void
.end method

.method public static Mc()Ljava/nio/ByteBuffer;
    .registers 1

    .prologue
    .line 50
    const/16 v0, 0x54

    new-array v0, v0, [B

    .line 51
    invoke-static {v0}, Ljava/nio/ByteBuffer;->wrap([B)Ljava/nio/ByteBuffer;

    move-result-object v0

    return-object v0
.end method

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

    .prologue
    .line 93
    const-string v0, "ntorNTORntorNTOR"

    sget-object v1, Lcom/subgraph/orchid/crypto/n;->bGe:Ljava/nio/charset/Charset;

    invoke-virtual {v0, v1}, Ljava/lang/String;->getBytes(Ljava/nio/charset/Charset;)[B

    move-result-object v0

    return-object v0
.end method

.method private an([B)[B
    .registers 10

    .prologue
    const/16 v7, 0x20

    const/4 v1, 0x1

    const/4 v2, 0x0

    .line 121
    new-array v5, v7, [B

    .line 122
    iget-object v0, p0, Lcom/subgraph/orchid/crypto/n;->bGh:[B

    invoke-static {v5, v0, p1}, Lcom/subgraph/orchid/crypto/g;->a([B[B[B)I

    .line 123
    iget-boolean v6, p0, Lcom/subgraph/orchid/crypto/n;->bGj:Z

    move v3, v2

    move v4, v1

    .line 4129
    :goto_f
    if-ge v3, v7, :cond_1d

    aget-byte v0, v5, v3

    .line 4130
    if-nez v0, :cond_1b

    move v0, v1

    :goto_16
    and-int/2addr v4, v0

    .line 4129
    add-int/lit8 v0, v3, 0x1

    move v3, v0

    goto :goto_f

    :cond_1b
    move v0, v2

    .line 4130
    goto :goto_16

    .line 123
    :cond_1d
    or-int v0, v6, v4

    iput-boolean v0, p0, Lcom/subgraph/orchid/crypto/n;->bGj:Z

    .line 124
    return-object v5
.end method

.method private static e(Ljava/lang/String;[B)[B
    .registers 4

    .prologue
    .line 136
    .line 4153
    invoke-virtual {p0}, Ljava/lang/String;->isEmpty()Z

    move-result v0

    if-eqz v0, :cond_13

    .line 4154
    const-string v0, "ntor-curve25519-sha256-1"

    sget-object v1, Lcom/subgraph/orchid/crypto/n;->bGe:Ljava/nio/charset/Charset;

    invoke-virtual {v0, v1}, Ljava/lang/String;->getBytes(Ljava/nio/charset/Charset;)[B

    move-result-object v0

    .line 136
    :goto_e
    invoke-static {p1, v0}, Lcom/subgraph/orchid/crypto/n;->h([B[B)[B

    move-result-object v0

    return-object v0

    .line 4156
    :cond_13
    new-instance v0, Ljava/lang/StringBuilder;

    const-string v1, "ntor-curve25519-sha256-1:"

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

    invoke-virtual {v0, p0}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v0

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

    move-result-object v0

    sget-object v1, Lcom/subgraph/orchid/crypto/n;->bGe:Ljava/nio/charset/Charset;

    invoke-virtual {v0, v1}, Ljava/lang/String;->getBytes(Ljava/nio/charset/Charset;)[B

    move-result-object v0

    goto :goto_e
.end method

.method private static h([B[B)[B
    .registers 6

    .prologue
    .line 140
    new-instance v0, Ljavax/crypto/spec/SecretKeySpec;

    const-string v1, "HmacSHA256"

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

    .line 142
    :try_start_7
    const-string v1, "HmacSHA256"

    invoke-static {v1}, Ljavax/crypto/Mac;->getInstance(Ljava/lang/String;)Ljavax/crypto/Mac;

    move-result-object v1

    .line 143
    invoke-virtual {v1, v0}, Ljavax/crypto/Mac;->init(Ljava/security/Key;)V

    .line 144
    invoke-virtual {v1, p0}, Ljavax/crypto/Mac;->doFinal([B)[B
    :try_end_13
    .catch Ljava/security/NoSuchAlgorithmException; {:try_start_7 .. :try_end_13} :catch_15
    .catch Ljava/security/InvalidKeyException; {:try_start_7 .. :try_end_13} :catch_2b

    move-result-object v0

    return-object v0

    .line 145
    :catch_15
    move-exception v0

    .line 146
    new-instance v1, Ljava/lang/IllegalStateException;

    new-instance v2, Ljava/lang/StringBuilder;

    const-string v3, "Failed to create HmacSHA256 instance: "

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

    throw v1

    .line 147
    :catch_2b
    move-exception v0

    .line 148
    new-instance v1, Ljava/lang/IllegalStateException;

    new-instance v2, Ljava/lang/StringBuilder;

    const-string v3, "Failed to create HmacSHA256 instance: "

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

    throw v1
.end method


# virtual methods
.method public final b([B[B[B)Z
    .registers 12

    .prologue
    const/16 v4, 0x20

    const/4 v1, 0x1

    const/4 v2, 0x0

    .line 71
    iput-boolean v2, p0, Lcom/subgraph/orchid/crypto/n;->bGj:Z

    .line 73
    invoke-static {p1}, Ljava/nio/ByteBuffer;->wrap([B)Ljava/nio/ByteBuffer;

    move-result-object v0

    .line 74
    new-array v3, v4, [B

    .line 75
    new-array v4, v4, [B

    .line 76
    invoke-virtual {v0, v3}, Ljava/nio/ByteBuffer;->get([B)Ljava/nio/ByteBuffer;

    .line 77
    invoke-virtual {v0, v4}, Ljava/nio/ByteBuffer;->get([B)Ljava/nio/ByteBuffer;

    .line 1097
    sget v0, Lcom/subgraph/orchid/crypto/n;->bGc:I

    .line 2050
    new-array v0, v0, [B

    .line 2051
    invoke-static {v0}, Ljava/nio/ByteBuffer;->wrap([B)Ljava/nio/ByteBuffer;

    move-result-object v0

    .line 1098
    invoke-direct {p0, v3}, Lcom/subgraph/orchid/crypto/n;->an([B)[B

    move-result-object v5

    invoke-virtual {v0, v5}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    .line 1099
    iget-object v5, p0, Lcom/subgraph/orchid/crypto/n;->bGg:[B

    invoke-direct {p0, v5}, Lcom/subgraph/orchid/crypto/n;->an([B)[B

    move-result-object v5

    invoke-virtual {v0, v5}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    .line 1100
    iget-object v5, p0, Lcom/subgraph/orchid/crypto/n;->bGf:Lcom/subgraph/orchid/d/c;

    invoke-virtual {v5}, Lcom/subgraph/orchid/d/c;->Mf()[B

    move-result-object v5

    invoke-virtual {v0, v5}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    .line 1101
    iget-object v5, p0, Lcom/subgraph/orchid/crypto/n;->bGg:[B

    invoke-virtual {v0, v5}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    .line 1102
    iget-object v5, p0, Lcom/subgraph/orchid/crypto/n;->bGi:[B

    invoke-virtual {v0, v5}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    .line 1103
    invoke-virtual {v0, v3}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    .line 1104
    const-string v5, "ntor-curve25519-sha256-1"

    invoke-virtual {v5}, Ljava/lang/String;->getBytes()[B

    move-result-object v5

    invoke-virtual {v0, v5}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    .line 1105
    invoke-virtual {v0}, Ljava/nio/ByteBuffer;->array()[B

    move-result-object v5

    .line 80
    const-string v0, "verify"

    invoke-static {v0, v5}, Lcom/subgraph/orchid/crypto/n;->e(Ljava/lang/String;[B)[B

    move-result-object v0

    .line 2109
    sget v6, Lcom/subgraph/orchid/crypto/n;->bGd:I

    .line 3050
    new-array v6, v6, [B

    .line 3051
    invoke-static {v6}, Ljava/nio/ByteBuffer;->wrap([B)Ljava/nio/ByteBuffer;

    move-result-object v6

    .line 2110
    invoke-virtual {v6, v0}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    .line 2111
    iget-object v0, p0, Lcom/subgraph/orchid/crypto/n;->bGf:Lcom/subgraph/orchid/d/c;

    invoke-virtual {v0}, Lcom/subgraph/orchid/d/c;->Mf()[B

    move-result-object v0

    invoke-virtual {v6, v0}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    .line 2112
    iget-object v0, p0, Lcom/subgraph/orchid/crypto/n;->bGg:[B

    invoke-virtual {v6, v0}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    .line 2113
    invoke-virtual {v6, v3}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    .line 2114
    iget-object v0, p0, Lcom/subgraph/orchid/crypto/n;->bGi:[B

    invoke-virtual {v6, v0}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    .line 2115
    const-string v0, "ntor-curve25519-sha256-1"

    sget-object v3, Lcom/subgraph/orchid/crypto/n;->bGe:Ljava/nio/charset/Charset;

    invoke-virtual {v0, v3}, Ljava/lang/String;->getBytes(Ljava/nio/charset/Charset;)[B

    move-result-object v0

    invoke-virtual {v6, v0}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    .line 2116
    const-string v0, "Server"

    sget-object v3, Lcom/subgraph/orchid/crypto/n;->bGe:Ljava/nio/charset/Charset;

    invoke-virtual {v0, v3}, Ljava/lang/String;->getBytes(Ljava/nio/charset/Charset;)[B

    move-result-object v0

    invoke-virtual {v6, v0}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    .line 2117
    invoke-virtual {v6}, Ljava/nio/ByteBuffer;->array()[B

    move-result-object v0

    .line 82
    const-string v3, "mac"

    invoke-static {v3, v0}, Lcom/subgraph/orchid/crypto/n;->e(Ljava/lang/String;[B)[B

    move-result-object v0

    .line 83
    iget-boolean v3, p0, Lcom/subgraph/orchid/crypto/n;->bGj:Z

    invoke-static {v0, v4}, Lcom/subgraph/orchid/g/a;->i([B[B)Z

    move-result v0

    if-nez v0, :cond_ef

    move v0, v1

    :goto_9f
    or-int/2addr v0, v3

    iput-boolean v0, p0, Lcom/subgraph/orchid/crypto/n;->bGj:Z

    .line 84
    const-string v0, "key_extract"

    invoke-static {v0, v5}, Lcom/subgraph/orchid/crypto/n;->e(Ljava/lang/String;[B)[B

    move-result-object v0

    .line 86
    new-instance v5, Lcom/subgraph/orchid/crypto/p;

    invoke-direct {v5, v0}, Lcom/subgraph/orchid/crypto/p;-><init>([B)V

    .line 4032
    const/16 v0, 0x5c

    invoke-static {v0}, Lcom/subgraph/orchid/crypto/p;->eP(I)Ljava/nio/ByteBuffer;

    move-result-object v6

    .line 4033
    const/4 v0, 0x0

    move-object v3, v0

    move v4, v1

    .line 4034
    :goto_b6
    invoke-virtual {v6}, Ljava/nio/ByteBuffer;->hasRemaining()Z

    move-result v0

    if-eqz v0, :cond_104

    .line 4049
    if-ne v4, v1, :cond_f1

    .line 4050
    sget-object v0, Lcom/subgraph/orchid/crypto/p;->bGo:[B

    array-length v0, v0

    add-int/lit8 v0, v0, 0x1

    invoke-static {v0}, Lcom/subgraph/orchid/crypto/p;->eP(I)Ljava/nio/ByteBuffer;

    move-result-object v0

    .line 4055
    :goto_c7
    sget-object v3, Lcom/subgraph/orchid/crypto/p;->bGo:[B

    invoke-virtual {v0, v3}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    .line 4056
    int-to-byte v3, v4

    invoke-virtual {v0, v3}, Ljava/nio/ByteBuffer;->put(B)Ljava/nio/ByteBuffer;

    .line 4058
    invoke-virtual {v5}, Lcom/subgraph/orchid/crypto/p;->Mj()Ljavax/crypto/Mac;

    move-result-object v3

    .line 4059
    invoke-virtual {v0}, Ljava/nio/ByteBuffer;->array()[B

    move-result-object v0

    invoke-virtual {v3, v0}, Ljavax/crypto/Mac;->doFinal([B)[B

    move-result-object v0

    .line 4036
    array-length v3, v0

    invoke-virtual {v6}, Ljava/nio/ByteBuffer;->remaining()I

    move-result v7

    if-le v3, v7, :cond_100

    .line 4037
    invoke-virtual {v6}, Ljava/nio/ByteBuffer;->remaining()I

    move-result v3

    invoke-virtual {v6, v0, v2, v3}, Ljava/nio/ByteBuffer;->put([BII)Ljava/nio/ByteBuffer;

    .line 4041
    :goto_ea
    add-int/lit8 v3, v4, 0x1

    move v4, v3

    move-object v3, v0

    goto :goto_b6

    :cond_ef
    move v0, v2

    .line 83
    goto :goto_9f

    .line 4052
    :cond_f1
    sget-object v0, Lcom/subgraph/orchid/crypto/p;->bGo:[B

    array-length v0, v0

    add-int/lit8 v0, v0, 0x20

    add-int/lit8 v0, v0, 0x1

    invoke-static {v0}, Lcom/subgraph/orchid/crypto/p;->eP(I)Ljava/nio/ByteBuffer;

    move-result-object v0

    .line 4053
    invoke-virtual {v0, v3}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    goto :goto_c7

    .line 4039
    :cond_100
    invoke-virtual {v6, v0}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    goto :goto_ea

    .line 4043
    :cond_104
    invoke-virtual {v6}, Ljava/nio/ByteBuffer;->flip()Ljava/nio/Buffer;

    .line 4026
    invoke-virtual {v6, p2}, Ljava/nio/ByteBuffer;->get([B)Ljava/nio/ByteBuffer;

    .line 4027
    invoke-virtual {v6, p3}, Ljava/nio/ByteBuffer;->get([B)Ljava/nio/ByteBuffer;

    .line 89
    iget-boolean v0, p0, Lcom/subgraph/orchid/crypto/n;->bGj:Z

    if-nez v0, :cond_112

    :goto_111
    return v1

    :cond_112
    move v1, v2

    goto :goto_111
.end method