NullEngine.smali

.class public Lorg/spongycastle/crypto/engines/NullEngine;
.super Ljava/lang/Object;
.source "NullEngine.java"

# interfaces
.implements Lorg/spongycastle/crypto/BlockCipher;


# static fields
.field protected static final DEFAULT_BLOCK_SIZE:I = 0x1


# instance fields
.field private final blockSize:I

.field private initialised:Z


# direct methods
.method public constructor <init>()V
    .registers 2

    .prologue
    .line 23
    const/4 v0, 0x1

    invoke-direct {p0, v0}, Lorg/spongycastle/crypto/engines/NullEngine;-><init>(I)V

    .line 24
    return-void
.end method

.method public constructor <init>(I)V
    .registers 2

    .prologue
    .line 32
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 33
    iput p1, p0, Lorg/spongycastle/crypto/engines/NullEngine;->blockSize:I

    .line 34
    return-void
.end method


# virtual methods
.method public getAlgorithmName()Ljava/lang/String;
    .registers 2

    .prologue
    .line 50
    const-string v0, "Null"

    return-object v0
.end method

.method public getBlockSize()I
    .registers 2

    .prologue
    .line 58
    iget v0, p0, Lorg/spongycastle/crypto/engines/NullEngine;->blockSize:I

    return v0
.end method

.method public init(ZLorg/spongycastle/crypto/CipherParameters;)V
    .registers 4

    .prologue
    .line 42
    const/4 v0, 0x1

    iput-boolean v0, p0, Lorg/spongycastle/crypto/engines/NullEngine;->initialised:Z

    .line 43
    return-void
.end method

.method public processBlock([BI[BI)I
    .registers 8

    .prologue
    .line 67
    iget-boolean v0, p0, Lorg/spongycastle/crypto/engines/NullEngine;->initialised:Z

    if-nez v0, :cond_c

    .line 69
    new-instance v0, Ljava/lang/IllegalStateException;

    const-string v1, "Null engine not initialised"

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

    throw v0

    .line 71
    :cond_c
    iget v0, p0, Lorg/spongycastle/crypto/engines/NullEngine;->blockSize:I

    add-int/2addr v0, p2

    array-length v1, p1

    if-le v0, v1, :cond_1a

    .line 73
    new-instance v0, Lorg/spongycastle/crypto/DataLengthException;

    const-string v1, "input buffer too short"

    invoke-direct {v0, v1}, Lorg/spongycastle/crypto/DataLengthException;-><init>(Ljava/lang/String;)V

    throw v0

    .line 76
    :cond_1a
    iget v0, p0, Lorg/spongycastle/crypto/engines/NullEngine;->blockSize:I

    add-int/2addr v0, p4

    array-length v1, p3

    if-le v0, v1, :cond_28

    .line 78
    new-instance v0, Lorg/spongycastle/crypto/OutputLengthException;

    const-string v1, "output buffer too short"

    invoke-direct {v0, v1}, Lorg/spongycastle/crypto/OutputLengthException;-><init>(Ljava/lang/String;)V

    throw v0

    .line 81
    :cond_28
    const/4 v0, 0x0

    :goto_29
    iget v1, p0, Lorg/spongycastle/crypto/engines/NullEngine;->blockSize:I

    if-ge v0, v1, :cond_38

    .line 83
    add-int v1, p4, v0

    add-int v2, p2, v0

    aget-byte v2, p1, v2

    aput-byte v2, p3, v1

    .line 81
    add-int/lit8 v0, v0, 0x1

    goto :goto_29

    .line 86
    :cond_38
    iget v0, p0, Lorg/spongycastle/crypto/engines/NullEngine;->blockSize:I

    return v0
.end method

.method public reset()V
    .registers 1

    .prologue
    .line 95
    return-void
.end method