i.smali

.class public final Lcom/cmcm/safewallet/data/coinprovider/bch/bitcoinj/crypto/i;
.super Ljava/lang/Object;
.source "PBKDF2SHA512.java"


# direct methods
.method private static c(Ljava/lang/String;Ljava/lang/String;I)[B
    .registers 11

    .prologue
    const/4 v0, 0x0

    const/4 v3, 0x0

    .line 71
    .line 74
    new-instance v1, Ljavax/crypto/spec/SecretKeySpec;

    const-string v2, "UTF-8"

    invoke-virtual {p0, v2}, Ljava/lang/String;->getBytes(Ljava/lang/String;)[B

    move-result-object v2

    const-string v4, "HmacSHA512"

    invoke-direct {v1, v2, v4}, Ljavax/crypto/spec/SecretKeySpec;-><init>([BLjava/lang/String;)V

    .line 75
    invoke-virtual {v1}, Ljavax/crypto/spec/SecretKeySpec;->getAlgorithm()Ljava/lang/String;

    move-result-object v2

    invoke-static {v2}, Ljavax/crypto/Mac;->getInstance(Ljava/lang/String;)Ljavax/crypto/Mac;

    move-result-object v5

    .line 76
    invoke-virtual {v5, v1}, Ljavax/crypto/Mac;->init(Ljava/security/Key;)V

    move-object v1, v0

    move v4, v3

    .line 78
    :goto_1c
    const/16 v2, 0x800

    if-ge v4, v2, :cond_69

    .line 79
    if-nez v4, :cond_53

    .line 80
    const-string v0, "UTF-8"

    invoke-virtual {p1, v0}, Ljava/lang/String;->getBytes(Ljava/lang/String;)[B

    move-result-object v0

    .line 1106
    const/4 v1, 0x4

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

    move-result-object v1

    .line 1107
    sget-object v2, Ljava/nio/ByteOrder;->BIG_ENDIAN:Ljava/nio/ByteOrder;

    invoke-virtual {v1, v2}, Ljava/nio/ByteBuffer;->order(Ljava/nio/ByteOrder;)Ljava/nio/ByteBuffer;

    .line 1108
    invoke-virtual {v1, p2}, Ljava/nio/ByteBuffer;->putInt(I)Ljava/nio/ByteBuffer;

    .line 1110
    invoke-virtual {v1}, Ljava/nio/ByteBuffer;->array()[B

    move-result-object v1

    .line 82
    array-length v2, v0

    array-length v6, v1

    add-int/2addr v2, v6

    new-array v2, v2, [B

    .line 84
    array-length v6, v0

    invoke-static {v0, v3, v2, v3, v6}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 85
    array-length v0, v0

    array-length v6, v1

    invoke-static {v1, v3, v2, v0, v6}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 87
    invoke-virtual {v5, v2}, Ljavax/crypto/Mac;->doFinal([B)[B

    move-result-object v0

    .line 89
    invoke-virtual {v5}, Ljavax/crypto/Mac;->reset()V

    move-object v1, v0

    .line 78
    :cond_4f
    add-int/lit8 v2, v4, 0x1

    move v4, v2

    goto :goto_1c

    .line 91
    :cond_53
    invoke-virtual {v5, v1}, Ljavax/crypto/Mac;->doFinal([B)[B

    move-result-object v1

    .line 92
    invoke-virtual {v5}, Ljavax/crypto/Mac;->reset()V

    move v2, v3

    .line 94
    :goto_5b
    array-length v6, v0

    if-ge v2, v6, :cond_4f

    .line 95
    aget-byte v6, v0, v2

    aget-byte v7, v1, v2

    xor-int/2addr v6, v7

    int-to-byte v6, v6

    aput-byte v6, v0, v2

    .line 94
    add-int/lit8 v2, v2, 0x1

    goto :goto_5b

    .line 102
    :cond_69
    return-object v0
.end method

.method public static q(Ljava/lang/String;Ljava/lang/String;)[B
    .registers 12

    .prologue
    const/16 v9, 0x40

    const/4 v8, 0x0

    .line 44
    new-instance v1, Ljava/io/ByteArrayOutputStream;

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

    .line 49
    const-wide/high16 v2, 0x4050000000000000L    # 64.0

    const-wide/high16 v4, 0x4000000000000000L    # 2.0

    const-wide/high16 v6, 0x4040000000000000L    # 32.0

    :try_start_e
    invoke-static {v4, v5, v6, v7}, Ljava/lang/Math;->pow(DD)D

    move-result-wide v4

    const-wide/high16 v6, 0x3ff0000000000000L    # 1.0

    sub-double/2addr v4, v6

    const-wide/high16 v6, 0x4034000000000000L    # 20.0

    mul-double/2addr v4, v6

    cmpl-double v0, v2, v4

    if-lez v0, :cond_2b

    .line 50
    new-instance v0, Ljava/lang/IllegalArgumentException;

    const-string v1, "derived key too long"

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

    throw v0
    :try_end_24
    .catch Ljava/lang/Exception; {:try_start_e .. :try_end_24} :catch_24

    .line 60
    :catch_24
    move-exception v0

    .line 61
    new-instance v1, Ljava/lang/RuntimeException;

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

    throw v1

    .line 52
    :cond_2b
    const-wide v2, 0x400999999999999aL    # 3.2

    :try_start_30
    invoke-static {v2, v3}, Ljava/lang/Math;->ceil(D)D

    move-result-wide v2

    double-to-int v2, v2

    .line 55
    const/4 v0, 0x1

    :goto_36
    if-gt v0, v2, :cond_42

    .line 56
    invoke-static {p0, p1, v0}, Lcom/cmcm/safewallet/data/coinprovider/bch/bitcoinj/crypto/i;->c(Ljava/lang/String;Ljava/lang/String;I)[B

    move-result-object v3

    .line 57
    invoke-virtual {v1, v3}, Ljava/io/ByteArrayOutputStream;->write([B)V
    :try_end_3f
    .catch Ljava/lang/Exception; {:try_start_30 .. :try_end_3f} :catch_24

    .line 55
    add-int/lit8 v0, v0, 0x1

    goto :goto_36

    .line 64
    :cond_42
    new-array v0, v9, [B

    .line 65
    invoke-virtual {v1}, Ljava/io/ByteArrayOutputStream;->toByteArray()[B

    move-result-object v1

    invoke-static {v1, v8, v0, v8, v9}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 67
    return-object v0
.end method