HDUtils.smali

.class public final Lorg/bitcoinj/crypto/HDUtils;
.super Ljava/lang/Object;
.source "HDUtils.java"


# static fields
.field static final synthetic $assertionsDisabled:Z

.field private static final PATH_JOINER:Lcom/google/common/base/h;


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

    .prologue
    .line 38
    const-class v0, Lorg/bitcoinj/crypto/HDUtils;

    invoke-virtual {v0}, Ljava/lang/Class;->desiredAssertionStatus()Z

    move-result v0

    if-nez v0, :cond_14

    const/4 v0, 0x1

    :goto_9
    sput-boolean v0, Lorg/bitcoinj/crypto/HDUtils;->$assertionsDisabled:Z

    .line 39
    const-string v0, "/"

    invoke-static {v0}, Lcom/google/common/base/h;->eM(Ljava/lang/String;)Lcom/google/common/base/h;

    move-result-object v0

    sput-object v0, Lorg/bitcoinj/crypto/HDUtils;->PATH_JOINER:Lcom/google/common/base/h;

    return-void

    .line 38
    :cond_14
    const/4 v0, 0x0

    goto :goto_9
.end method

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

    .prologue
    .line 38
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    return-void
.end method

.method public static append(Ljava/util/List;Lorg/bitcoinj/crypto/ChildNumber;)Lcom/google/common/collect/ImmutableList;
    .registers 3
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "(",
            "Ljava/util/List",
            "<",
            "Lorg/bitcoinj/crypto/ChildNumber;",
            ">;",
            "Lorg/bitcoinj/crypto/ChildNumber;",
            ")",
            "Lcom/google/common/collect/ImmutableList",
            "<",
            "Lorg/bitcoinj/crypto/ChildNumber;",
            ">;"
        }
    .end annotation

    .prologue
    .line 72
    invoke-static {}, Lcom/google/common/collect/ImmutableList;->builder()Lcom/google/common/collect/an;

    move-result-object v0

    invoke-virtual {v0, p0}, Lcom/google/common/collect/an;->c(Ljava/lang/Iterable;)Lcom/google/common/collect/an;

    move-result-object v0

    invoke-virtual {v0, p1}, Lcom/google/common/collect/an;->Z(Ljava/lang/Object;)Lcom/google/common/collect/an;

    move-result-object v0

    invoke-virtual {v0}, Lcom/google/common/collect/an;->xm()Lcom/google/common/collect/ImmutableList;

    move-result-object v0

    return-object v0
.end method

.method public static concat(Ljava/util/List;Ljava/util/List;)Lcom/google/common/collect/ImmutableList;
    .registers 3
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "(",
            "Ljava/util/List",
            "<",
            "Lorg/bitcoinj/crypto/ChildNumber;",
            ">;",
            "Ljava/util/List",
            "<",
            "Lorg/bitcoinj/crypto/ChildNumber;",
            ">;)",
            "Lcom/google/common/collect/ImmutableList",
            "<",
            "Lorg/bitcoinj/crypto/ChildNumber;",
            ">;"
        }
    .end annotation

    .prologue
    .line 77
    invoke-static {}, Lcom/google/common/collect/ImmutableList;->builder()Lcom/google/common/collect/an;

    move-result-object v0

    invoke-virtual {v0, p0}, Lcom/google/common/collect/an;->c(Ljava/lang/Iterable;)Lcom/google/common/collect/an;

    move-result-object v0

    invoke-virtual {v0, p1}, Lcom/google/common/collect/an;->c(Ljava/lang/Iterable;)Lcom/google/common/collect/an;

    move-result-object v0

    invoke-virtual {v0}, Lcom/google/common/collect/an;->xm()Lcom/google/common/collect/ImmutableList;

    move-result-object v0

    return-object v0
.end method

.method static createHmacSha512Digest([B)Lorg/spongycastle/crypto/macs/HMac;
    .registers 3

    .prologue
    .line 42
    new-instance v0, Lorg/spongycastle/crypto/digests/SHA512Digest;

    invoke-direct {v0}, Lorg/spongycastle/crypto/digests/SHA512Digest;-><init>()V

    .line 43
    new-instance v1, Lorg/spongycastle/crypto/macs/HMac;

    invoke-direct {v1, v0}, Lorg/spongycastle/crypto/macs/HMac;-><init>(Lorg/spongycastle/crypto/Digest;)V

    .line 44
    new-instance v0, Lorg/spongycastle/crypto/params/KeyParameter;

    invoke-direct {v0, p0}, Lorg/spongycastle/crypto/params/KeyParameter;-><init>([B)V

    invoke-virtual {v1, v0}, Lorg/spongycastle/crypto/macs/HMac;->init(Lorg/spongycastle/crypto/CipherParameters;)V

    .line 45
    return-object v1
.end method

.method public static formatPath(Ljava/util/List;)Ljava/lang/String;
    .registers 3
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "(",
            "Ljava/util/List",
            "<",
            "Lorg/bitcoinj/crypto/ChildNumber;",
            ">;)",
            "Ljava/lang/String;"
        }
    .end annotation

    .prologue
    .line 82
    sget-object v0, Lorg/bitcoinj/crypto/HDUtils;->PATH_JOINER:Lcom/google/common/base/h;

    const-string v1, "M"

    invoke-static {v1}, Ljava/util/Collections;->singleton(Ljava/lang/Object;)Ljava/util/Set;

    move-result-object v1

    invoke-static {v1, p0}, Lcom/google/common/collect/ay;->a(Ljava/lang/Iterable;Ljava/lang/Iterable;)Ljava/lang/Iterable;

    move-result-object v1

    invoke-virtual {v0, v1}, Lcom/google/common/base/h;->join(Ljava/lang/Iterable;)Ljava/lang/String;

    move-result-object v0

    return-object v0
.end method

.method static hmacSha512(Lorg/spongycastle/crypto/macs/HMac;[B)[B
    .registers 4

    .prologue
    const/4 v1, 0x0

    .line 49
    invoke-virtual {p0}, Lorg/spongycastle/crypto/macs/HMac;->reset()V

    .line 50
    array-length v0, p1

    invoke-virtual {p0, p1, v1, v0}, Lorg/spongycastle/crypto/macs/HMac;->update([BII)V

    .line 51
    const/16 v0, 0x40

    new-array v0, v0, [B

    .line 52
    invoke-virtual {p0, v0, v1}, Lorg/spongycastle/crypto/macs/HMac;->doFinal([BI)I

    .line 53
    return-object v0
.end method

.method public static hmacSha512([B[B)[B
    .registers 3

    .prologue
    .line 57
    invoke-static {p0}, Lorg/bitcoinj/crypto/HDUtils;->createHmacSha512Digest([B)Lorg/spongycastle/crypto/macs/HMac;

    move-result-object v0

    invoke-static {v0, p1}, Lorg/bitcoinj/crypto/HDUtils;->hmacSha512(Lorg/spongycastle/crypto/macs/HMac;[B)[B

    move-result-object v0

    return-object v0
.end method

.method static longTo4ByteArray(J)[B
    .registers 6

    .prologue
    const/16 v1, 0x8

    const/4 v2, 0x4

    .line 65
    invoke-static {v1}, Ljava/nio/ByteBuffer;->allocate(I)Ljava/nio/ByteBuffer;

    move-result-object v0

    invoke-virtual {v0, p0, p1}, Ljava/nio/ByteBuffer;->putLong(J)Ljava/nio/ByteBuffer;

    move-result-object v0

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

    move-result-object v0

    invoke-static {v0, v2, v1}, Ljava/util/Arrays;->copyOfRange([BII)[B

    move-result-object v0

    .line 66
    sget-boolean v1, Lorg/bitcoinj/crypto/HDUtils;->$assertionsDisabled:Z

    if-nez v1, :cond_21

    array-length v1, v0

    if-eq v1, v2, :cond_21

    new-instance v1, Ljava/lang/AssertionError;

    array-length v0, v0

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

    throw v1

    .line 67
    :cond_21
    return-object v0
.end method

.method public static parsePath(Ljava/lang/String;)Ljava/util/List;
    .registers 9
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "(",
            "Ljava/lang/String;",
            ")",
            "Ljava/util/List",
            "<",
            "Lorg/bitcoinj/crypto/ChildNumber;",
            ">;"
        }
    .end annotation

    .prologue
    const/4 v2, 0x0

    .line 93
    const-string v0, "M"

    const-string v1, ""

    invoke-virtual {p0, v0, v1}, Ljava/lang/String;->replace(Ljava/lang/CharSequence;Ljava/lang/CharSequence;)Ljava/lang/String;

    move-result-object v0

    const-string v1, "/"

    invoke-virtual {v0, v1}, Ljava/lang/String;->split(Ljava/lang/String;)[Ljava/lang/String;

    move-result-object v3

    .line 94
    new-instance v4, Ljava/util/ArrayList;

    invoke-direct {v4}, Ljava/util/ArrayList;-><init>()V

    .line 96
    array-length v5, v3

    move v1, v2

    :goto_16
    if-ge v1, v5, :cond_4a

    aget-object v0, v3, v1

    .line 97
    const-string v6, " "

    const-string v7, ""

    invoke-virtual {v0, v6, v7}, Ljava/lang/String;->replaceAll(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;

    move-result-object v0

    .line 98
    invoke-virtual {v0}, Ljava/lang/String;->length()I

    move-result v6

    if-eqz v6, :cond_46

    .line 99
    const-string v6, "H"

    invoke-virtual {v0, v6}, Ljava/lang/String;->endsWith(Ljava/lang/String;)Z

    move-result v6

    .line 100
    if-eqz v6, :cond_3a

    invoke-virtual {v0}, Ljava/lang/String;->length()I

    move-result v7

    add-int/lit8 v7, v7, -0x1

    invoke-virtual {v0, v2, v7}, Ljava/lang/String;->substring(II)Ljava/lang/String;

    move-result-object v0

    .line 101
    :cond_3a
    invoke-static {v0}, Ljava/lang/Integer;->parseInt(Ljava/lang/String;)I

    move-result v0

    .line 102
    new-instance v7, Lorg/bitcoinj/crypto/ChildNumber;

    invoke-direct {v7, v0, v6}, Lorg/bitcoinj/crypto/ChildNumber;-><init>(IZ)V

    invoke-interface {v4, v7}, Ljava/util/List;->add(Ljava/lang/Object;)Z

    .line 96
    :cond_46
    add-int/lit8 v0, v1, 0x1

    move v1, v0

    goto :goto_16

    .line 105
    :cond_4a
    return-object v4
.end method

.method static toCompressed([B)[B
    .registers 3

    .prologue
    .line 61
    sget-object v0, Lorg/bitcoinj/core/ECKey;->CURVE:Lorg/spongycastle/crypto/params/ECDomainParameters;

    invoke-virtual {v0}, Lorg/spongycastle/crypto/params/ECDomainParameters;->getCurve()Lorg/spongycastle/math/ec/ECCurve;

    move-result-object v0

    invoke-virtual {v0, p0}, Lorg/spongycastle/math/ec/ECCurve;->decodePoint([B)Lorg/spongycastle/math/ec/ECPoint;

    move-result-object v0

    const/4 v1, 0x1

    invoke-virtual {v0, v1}, Lorg/spongycastle/math/ec/ECPoint;->getEncoded(Z)[B

    move-result-object v0

    return-object v0
.end method