CCMBlockCipher.smali

.class public Lorg/spongycastle/crypto/modes/CCMBlockCipher;
.super Ljava/lang/Object;
.source "CCMBlockCipher.java"

# interfaces
.implements Lorg/spongycastle/crypto/modes/AEADBlockCipher;


# instance fields
.field private associatedText:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

.field private blockSize:I

.field private cipher:Lorg/spongycastle/crypto/BlockCipher;

.field private data:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

.field private forEncryption:Z

.field private initialAssociatedText:[B

.field private keyParam:Lorg/spongycastle/crypto/CipherParameters;

.field private macBlock:[B

.field private macSize:I

.field private nonce:[B


# direct methods
.method public constructor <init>(Lorg/spongycastle/crypto/BlockCipher;)V
    .registers 4

    .prologue
    .line 42
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 33
    new-instance v0, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    invoke-direct {v0, p0}, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;-><init>(Lorg/spongycastle/crypto/modes/CCMBlockCipher;)V

    iput-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->associatedText:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    .line 34
    new-instance v0, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    invoke-direct {v0, p0}, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;-><init>(Lorg/spongycastle/crypto/modes/CCMBlockCipher;)V

    iput-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->data:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    .line 43
    iput-object p1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->cipher:Lorg/spongycastle/crypto/BlockCipher;

    .line 44
    invoke-interface {p1}, Lorg/spongycastle/crypto/BlockCipher;->getBlockSize()I

    move-result v0

    iput v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->blockSize:I

    .line 45
    iget v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->blockSize:I

    new-array v0, v0, [B

    iput-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macBlock:[B

    .line 47
    iget v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->blockSize:I

    const/16 v1, 0x10

    if-eq v0, v1, :cond_2d

    .line 49
    new-instance v0, Ljava/lang/IllegalArgumentException;

    const-string v1, "cipher required with a block size of 16."

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

    throw v0

    .line 51
    :cond_2d
    return-void
.end method

.method private calculateMac([BII[B)I
    .registers 13

    .prologue
    const/4 v0, 0x1

    const/16 v7, 0x10

    const/4 v6, 0x0

    .line 352
    new-instance v2, Lorg/spongycastle/crypto/macs/CBCBlockCipherMac;

    iget-object v1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->cipher:Lorg/spongycastle/crypto/BlockCipher;

    iget v3, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macSize:I

    shl-int/lit8 v3, v3, 0x3

    invoke-direct {v2, v1, v3}, Lorg/spongycastle/crypto/macs/CBCBlockCipherMac;-><init>(Lorg/spongycastle/crypto/BlockCipher;I)V

    .line 354
    iget-object v1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->keyParam:Lorg/spongycastle/crypto/CipherParameters;

    invoke-interface {v2, v1}, Lorg/spongycastle/crypto/Mac;->init(Lorg/spongycastle/crypto/CipherParameters;)V

    .line 359
    new-array v3, v7, [B

    .line 361
    invoke-direct {p0}, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->hasAssociatedText()Z

    move-result v1

    if-eqz v1, :cond_23

    .line 363
    aget-byte v1, v3, v6

    or-int/lit8 v1, v1, 0x40

    int-to-byte v1, v1

    aput-byte v1, v3, v6

    .line 366
    :cond_23
    aget-byte v1, v3, v6

    invoke-interface {v2}, Lorg/spongycastle/crypto/Mac;->getMacSize()I

    move-result v4

    add-int/lit8 v4, v4, -0x2

    div-int/lit8 v4, v4, 0x2

    and-int/lit8 v4, v4, 0x7

    shl-int/lit8 v4, v4, 0x3

    or-int/2addr v1, v4

    int-to-byte v1, v1

    aput-byte v1, v3, v6

    .line 368
    aget-byte v1, v3, v6

    iget-object v4, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->nonce:[B

    array-length v4, v4

    rsub-int/lit8 v4, v4, 0xf

    add-int/lit8 v4, v4, -0x1

    and-int/lit8 v4, v4, 0x7

    or-int/2addr v1, v4

    int-to-byte v1, v1

    aput-byte v1, v3, v6

    .line 370
    iget-object v1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->nonce:[B

    iget-object v4, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->nonce:[B

    array-length v4, v4

    invoke-static {v1, v6, v3, v0, v4}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    move v1, p3

    .line 374
    :goto_4d
    if-lez v1, :cond_59

    .line 376
    rsub-int/lit8 v4, v0, 0x10

    int-to-byte v5, v1

    aput-byte v5, v3, v4

    .line 377
    ushr-int/lit8 v1, v1, 0x8

    .line 378
    add-int/lit8 v0, v0, 0x1

    goto :goto_4d

    .line 381
    :cond_59
    invoke-interface {v2, v3, v6, v7}, Lorg/spongycastle/crypto/Mac;->update([BII)V

    .line 386
    invoke-direct {p0}, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->hasAssociatedText()Z

    move-result v0

    if-eqz v0, :cond_c5

    .line 390
    invoke-direct {p0}, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->getAssociatedTextLength()I

    move-result v1

    .line 391
    const v0, 0xff00

    if-ge v1, v0, :cond_a6

    .line 393
    shr-int/lit8 v0, v1, 0x8

    int-to-byte v0, v0

    invoke-interface {v2, v0}, Lorg/spongycastle/crypto/Mac;->update(B)V

    .line 394
    int-to-byte v0, v1

    invoke-interface {v2, v0}, Lorg/spongycastle/crypto/Mac;->update(B)V

    .line 396
    const/4 v0, 0x2

    .line 410
    :goto_76
    iget-object v3, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->initialAssociatedText:[B

    if-eqz v3, :cond_82

    .line 412
    iget-object v3, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->initialAssociatedText:[B

    iget-object v4, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->initialAssociatedText:[B

    array-length v4, v4

    invoke-interface {v2, v3, v6, v4}, Lorg/spongycastle/crypto/Mac;->update([BII)V

    .line 414
    :cond_82
    iget-object v3, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->associatedText:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    invoke-virtual {v3}, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;->size()I

    move-result v3

    if-lez v3, :cond_99

    .line 416
    iget-object v3, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->associatedText:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    invoke-virtual {v3}, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;->getBuffer()[B

    move-result-object v3

    iget-object v4, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->associatedText:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    invoke-virtual {v4}, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;->size()I

    move-result v4

    invoke-interface {v2, v3, v6, v4}, Lorg/spongycastle/crypto/Mac;->update([BII)V

    .line 419
    :cond_99
    add-int/2addr v0, v1

    rem-int/lit8 v0, v0, 0x10

    .line 420
    if-eqz v0, :cond_c5

    .line 422
    :goto_9e
    if-eq v0, v7, :cond_c5

    .line 424
    invoke-interface {v2, v6}, Lorg/spongycastle/crypto/Mac;->update(B)V

    .line 422
    add-int/lit8 v0, v0, 0x1

    goto :goto_9e

    .line 400
    :cond_a6
    const/4 v0, -0x1

    invoke-interface {v2, v0}, Lorg/spongycastle/crypto/Mac;->update(B)V

    .line 401
    const/4 v0, -0x2

    invoke-interface {v2, v0}, Lorg/spongycastle/crypto/Mac;->update(B)V

    .line 402
    shr-int/lit8 v0, v1, 0x18

    invoke-interface {v2, v0}, Lorg/spongycastle/crypto/Mac;->update(B)V

    .line 403
    shr-int/lit8 v0, v1, 0x10

    int-to-byte v0, v0

    invoke-interface {v2, v0}, Lorg/spongycastle/crypto/Mac;->update(B)V

    .line 404
    shr-int/lit8 v0, v1, 0x8

    int-to-byte v0, v0

    invoke-interface {v2, v0}, Lorg/spongycastle/crypto/Mac;->update(B)V

    .line 405
    int-to-byte v0, v1

    invoke-interface {v2, v0}, Lorg/spongycastle/crypto/Mac;->update(B)V

    .line 407
    const/4 v0, 0x6

    goto :goto_76

    .line 432
    :cond_c5
    invoke-interface {v2, p1, p2, p3}, Lorg/spongycastle/crypto/Mac;->update([BII)V

    .line 434
    invoke-interface {v2, p4, v6}, Lorg/spongycastle/crypto/Mac;->doFinal([BI)I

    move-result v0

    return v0
.end method

.method private getAssociatedTextLength()I
    .registers 3

    .prologue
    .line 439
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->associatedText:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    invoke-virtual {v0}, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;->size()I

    move-result v1

    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->initialAssociatedText:[B

    if-nez v0, :cond_d

    const/4 v0, 0x0

    :goto_b
    add-int/2addr v0, v1

    return v0

    :cond_d
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->initialAssociatedText:[B

    array-length v0, v0

    goto :goto_b
.end method

.method private hasAssociatedText()Z
    .registers 2

    .prologue
    .line 444
    invoke-direct {p0}, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->getAssociatedTextLength()I

    move-result v0

    if-lez v0, :cond_8

    const/4 v0, 0x1

    :goto_7
    return v0

    :cond_8
    const/4 v0, 0x0

    goto :goto_7
.end method


# virtual methods
.method public doFinal([BI)I
    .registers 9

    .prologue
    .line 146
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->data:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    invoke-virtual {v0}, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;->getBuffer()[B

    move-result-object v1

    const/4 v2, 0x0

    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->data:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    invoke-virtual {v0}, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;->size()I

    move-result v3

    move-object v0, p0

    move-object v4, p1

    move v5, p2

    invoke-virtual/range {v0 .. v5}, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->processPacket([BII[BI)I

    move-result v0

    .line 148
    invoke-virtual {p0}, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->reset()V

    .line 150
    return v0
.end method

.method public getAlgorithmName()Ljava/lang/String;
    .registers 3

    .prologue
    .line 109
    new-instance v0, Ljava/lang/StringBuilder;

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

    iget-object v1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->cipher:Lorg/spongycastle/crypto/BlockCipher;

    invoke-interface {v1}, Lorg/spongycastle/crypto/BlockCipher;->getAlgorithmName()Ljava/lang/String;

    move-result-object v1

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

    move-result-object v0

    const-string v1, "/CCM"

    invoke-virtual {v0, v1}, 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

    return-object v0
.end method

.method public getMac()[B
    .registers 5

    .prologue
    const/4 v3, 0x0

    .line 168
    iget v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macSize:I

    new-array v0, v0, [B

    .line 170
    iget-object v1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macBlock:[B

    array-length v2, v0

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

    .line 172
    return-object v0
.end method

.method public getOutputSize(I)I
    .registers 4

    .prologue
    .line 182
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->data:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    invoke-virtual {v0}, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;->size()I

    move-result v0

    add-int/2addr v0, p1

    .line 184
    iget-boolean v1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->forEncryption:Z

    if-eqz v1, :cond_f

    .line 186
    iget v1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macSize:I

    add-int/2addr v0, v1

    .line 189
    :goto_e
    return v0

    :cond_f
    iget v1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macSize:I

    if-ge v0, v1, :cond_15

    const/4 v0, 0x0

    goto :goto_e

    :cond_15
    iget v1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macSize:I

    sub-int/2addr v0, v1

    goto :goto_e
.end method

.method public getUnderlyingCipher()Lorg/spongycastle/crypto/BlockCipher;
    .registers 2

    .prologue
    .line 60
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->cipher:Lorg/spongycastle/crypto/BlockCipher;

    return-object v0
.end method

.method public getUpdateOutputSize(I)I
    .registers 3

    .prologue
    .line 177
    const/4 v0, 0x0

    return v0
.end method

.method public init(ZLorg/spongycastle/crypto/CipherParameters;)V
    .registers 6

    .prologue
    .line 67
    iput-boolean p1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->forEncryption:Z

    .line 70
    instance-of v0, p2, Lorg/spongycastle/crypto/params/AEADParameters;

    if-eqz v0, :cond_3d

    .line 72
    check-cast p2, Lorg/spongycastle/crypto/params/AEADParameters;

    .line 74
    invoke-virtual {p2}, Lorg/spongycastle/crypto/params/AEADParameters;->getNonce()[B

    move-result-object v0

    iput-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->nonce:[B

    .line 75
    invoke-virtual {p2}, Lorg/spongycastle/crypto/params/AEADParameters;->getAssociatedText()[B

    move-result-object v0

    iput-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->initialAssociatedText:[B

    .line 76
    invoke-virtual {p2}, Lorg/spongycastle/crypto/params/AEADParameters;->getMacSize()I

    move-result v0

    div-int/lit8 v0, v0, 0x8

    iput v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macSize:I

    .line 77
    invoke-virtual {p2}, Lorg/spongycastle/crypto/params/AEADParameters;->getKey()Lorg/spongycastle/crypto/params/KeyParameter;

    move-result-object v0

    .line 94
    :goto_20
    if-eqz v0, :cond_24

    .line 96
    iput-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->keyParam:Lorg/spongycastle/crypto/CipherParameters;

    .line 99
    :cond_24
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->nonce:[B

    if-eqz v0, :cond_35

    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->nonce:[B

    array-length v0, v0

    const/4 v1, 0x7

    if-lt v0, v1, :cond_35

    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->nonce:[B

    array-length v0, v0

    const/16 v1, 0xd

    if-le v0, v1, :cond_75

    .line 101
    :cond_35
    new-instance v0, Ljava/lang/IllegalArgumentException;

    const-string v1, "nonce must have length from 7 to 13 octets"

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

    throw v0

    .line 79
    :cond_3d
    instance-of v0, p2, Lorg/spongycastle/crypto/params/ParametersWithIV;

    if-eqz v0, :cond_58

    .line 81
    check-cast p2, Lorg/spongycastle/crypto/params/ParametersWithIV;

    .line 83
    invoke-virtual {p2}, Lorg/spongycastle/crypto/params/ParametersWithIV;->getIV()[B

    move-result-object v0

    iput-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->nonce:[B

    .line 84
    const/4 v0, 0x0

    iput-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->initialAssociatedText:[B

    .line 85
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macBlock:[B

    array-length v0, v0

    div-int/lit8 v0, v0, 0x2

    iput v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macSize:I

    .line 86
    invoke-virtual {p2}, Lorg/spongycastle/crypto/params/ParametersWithIV;->getParameters()Lorg/spongycastle/crypto/CipherParameters;

    move-result-object v0

    goto :goto_20

    .line 90
    :cond_58
    new-instance v0, Ljava/lang/IllegalArgumentException;

    new-instance v1, Ljava/lang/StringBuilder;

    const-string v2, "invalid parameters passed to CCM: "

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

    invoke-virtual {p2}, Ljava/lang/Object;->getClass()Ljava/lang/Class;

    move-result-object v2

    invoke-virtual {v2}, Ljava/lang/Class;->getName()Ljava/lang/String;

    move-result-object v2

    invoke-virtual {v1, v2}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    move-result-object v1

    invoke-virtual {v1}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object v1

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

    throw v0

    .line 104
    :cond_75
    invoke-virtual {p0}, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->reset()V

    .line 105
    return-void
.end method

.method public processAADByte(B)V
    .registers 3

    .prologue
    .line 114
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->associatedText:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    invoke-virtual {v0, p1}, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;->write(I)V

    .line 115
    return-void
.end method

.method public processAADBytes([BII)V
    .registers 5

    .prologue
    .line 120
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->associatedText:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    invoke-virtual {v0, p1, p2, p3}, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;->write([BII)V

    .line 121
    return-void
.end method

.method public processByte(B[BI)I
    .registers 5

    .prologue
    .line 126
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->data:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    invoke-virtual {v0, p1}, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;->write(I)V

    .line 128
    const/4 v0, 0x0

    return v0
.end method

.method public processBytes([BII[BI)I
    .registers 8

    .prologue
    .line 134
    array-length v0, p1

    add-int v1, p2, p3

    if-ge v0, v1, :cond_d

    .line 136
    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 138
    :cond_d
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->data:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    invoke-virtual {v0, p1, p2, p3}, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;->write([BII)V

    .line 140
    const/4 v0, 0x0

    return v0
.end method

.method public processPacket([BII[BI)I
    .registers 14

    .prologue
    const/4 v3, 0x1

    const/4 v7, 0x0

    .line 243
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->keyParam:Lorg/spongycastle/crypto/CipherParameters;

    if-nez v0, :cond_e

    .line 245
    new-instance v0, Ljava/lang/IllegalStateException;

    const-string v1, "CCM cipher unitialized."

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

    throw v0

    .line 248
    :cond_e
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->nonce:[B

    array-length v0, v0

    .line 249
    rsub-int/lit8 v0, v0, 0xf

    .line 250
    const/4 v1, 0x4

    if-ge v0, v1, :cond_24

    .line 252
    shl-int/lit8 v1, v0, 0x3

    shl-int v1, v3, v1

    .line 253
    if-lt p3, v1, :cond_24

    .line 255
    new-instance v0, Ljava/lang/IllegalStateException;

    const-string v1, "CCM packet too large for choice of q."

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

    throw v0

    .line 259
    :cond_24
    iget v1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->blockSize:I

    new-array v1, v1, [B

    .line 260
    add-int/lit8 v0, v0, -0x1

    and-int/lit8 v0, v0, 0x7

    int-to-byte v0, v0

    aput-byte v0, v1, v7

    .line 261
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->nonce:[B

    iget-object v2, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->nonce:[B

    array-length v2, v2

    invoke-static {v0, v7, v1, v3, v2}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 263
    new-instance v3, Lorg/spongycastle/crypto/modes/SICBlockCipher;

    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->cipher:Lorg/spongycastle/crypto/BlockCipher;

    invoke-direct {v3, v0}, Lorg/spongycastle/crypto/modes/SICBlockCipher;-><init>(Lorg/spongycastle/crypto/BlockCipher;)V

    .line 264
    iget-boolean v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->forEncryption:Z

    new-instance v2, Lorg/spongycastle/crypto/params/ParametersWithIV;

    iget-object v4, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->keyParam:Lorg/spongycastle/crypto/CipherParameters;

    invoke-direct {v2, v4, v1}, Lorg/spongycastle/crypto/params/ParametersWithIV;-><init>(Lorg/spongycastle/crypto/CipherParameters;[B)V

    invoke-interface {v3, v0, v2}, Lorg/spongycastle/crypto/BlockCipher;->init(ZLorg/spongycastle/crypto/CipherParameters;)V

    .line 270
    iget-boolean v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->forEncryption:Z

    if-eqz v0, :cond_9d

    .line 272
    iget v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macSize:I

    add-int v2, p3, v0

    .line 273
    array-length v0, p4

    add-int v1, v2, p5

    if-ge v0, v1, :cond_5f

    .line 275
    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 278
    :cond_5f
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macBlock:[B

    invoke-direct {p0, p1, p2, p3, v0}, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->calculateMac([BII[B)I

    .line 280
    iget v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->blockSize:I

    new-array v4, v0, [B

    .line 282
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macBlock:[B

    invoke-interface {v3, v0, v7, v4, v7}, Lorg/spongycastle/crypto/BlockCipher;->processBlock([BI[BI)I

    move v0, p5

    move v1, p2

    .line 284
    :goto_6f
    add-int v5, p2, p3

    iget v6, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->blockSize:I

    sub-int/2addr v5, v6

    if-ge v1, v5, :cond_80

    .line 286
    invoke-interface {v3, p1, v1, p4, v0}, Lorg/spongycastle/crypto/BlockCipher;->processBlock([BI[BI)I

    .line 287
    iget v5, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->blockSize:I

    add-int/2addr v0, v5

    .line 288
    iget v5, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->blockSize:I

    add-int/2addr v1, v5

    goto :goto_6f

    .line 291
    :cond_80
    iget v5, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->blockSize:I

    new-array v5, v5, [B

    .line 293
    add-int v6, p3, p2

    sub-int/2addr v6, v1

    invoke-static {p1, v1, v5, v7, v6}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 295
    invoke-interface {v3, v5, v7, v5, v7}, Lorg/spongycastle/crypto/BlockCipher;->processBlock([BI[BI)I

    .line 297
    add-int v3, p3, p2

    sub-int v1, v3, v1

    invoke-static {v5, v7, p4, v0, v1}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 299
    add-int v0, p5, p3

    iget v1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macSize:I

    invoke-static {v4, v7, p4, v0, v1}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    move v0, v2

    .line 347
    :goto_9c
    return v0

    .line 303
    :cond_9d
    iget v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macSize:I

    if-ge p3, v0, :cond_a9

    .line 305
    new-instance v0, Lorg/spongycastle/crypto/InvalidCipherTextException;

    const-string v1, "data too short"

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

    throw v0

    .line 307
    :cond_a9
    iget v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macSize:I

    sub-int v2, p3, v0

    .line 308
    array-length v0, p4

    add-int v1, v2, p5

    if-ge v0, v1, :cond_ba

    .line 310
    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 313
    :cond_ba
    add-int v0, p2, v2

    iget-object v1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macBlock:[B

    iget v4, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macSize:I

    invoke-static {p1, v0, v1, v7, v4}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 315
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macBlock:[B

    iget-object v1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macBlock:[B

    invoke-interface {v3, v0, v7, v1, v7}, Lorg/spongycastle/crypto/BlockCipher;->processBlock([BI[BI)I

    .line 317
    iget v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macSize:I

    :goto_cc
    iget-object v1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macBlock:[B

    array-length v1, v1

    if-eq v0, v1, :cond_116

    .line 319
    iget-object v1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macBlock:[B

    aput-byte v7, v1, v0

    .line 317
    add-int/lit8 v0, v0, 0x1

    goto :goto_cc

    .line 322
    :goto_d8
    add-int v4, p2, v2

    iget v5, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->blockSize:I

    sub-int/2addr v4, v5

    if-ge v1, v4, :cond_e9

    .line 324
    invoke-interface {v3, p1, v1, p4, v0}, Lorg/spongycastle/crypto/BlockCipher;->processBlock([BI[BI)I

    .line 325
    iget v4, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->blockSize:I

    add-int/2addr v0, v4

    .line 326
    iget v4, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->blockSize:I

    add-int/2addr v1, v4

    goto :goto_d8

    .line 329
    :cond_e9
    iget v4, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->blockSize:I

    new-array v4, v4, [B

    .line 331
    sub-int v5, v1, p2

    sub-int v5, v2, v5

    invoke-static {p1, v1, v4, v7, v5}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 333
    invoke-interface {v3, v4, v7, v4, v7}, Lorg/spongycastle/crypto/BlockCipher;->processBlock([BI[BI)I

    .line 335
    sub-int/2addr v1, p2

    sub-int v1, v2, v1

    invoke-static {v4, v7, p4, v0, v1}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 337
    iget v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->blockSize:I

    new-array v0, v0, [B

    .line 339
    invoke-direct {p0, p4, p5, v2, v0}, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->calculateMac([BII[B)I

    .line 341
    iget-object v1, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macBlock:[B

    invoke-static {v1, v0}, Lorg/spongycastle/util/Arrays;->constantTimeAreEqual([B[B)Z

    move-result v0

    if-nez v0, :cond_114

    .line 343
    new-instance v0, Lorg/spongycastle/crypto/InvalidCipherTextException;

    const-string v1, "mac check in CCM failed"

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

    throw v0

    :cond_114
    move v0, v2

    goto :goto_9c

    :cond_116
    move v0, p5

    move v1, p2

    goto :goto_d8
.end method

.method public processPacket([BII)[B
    .registers 10

    .prologue
    .line 207
    iget-boolean v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->forEncryption:Z

    if-eqz v0, :cond_12

    .line 209
    iget v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macSize:I

    add-int/2addr v0, p3

    new-array v4, v0, [B

    .line 220
    :goto_9
    const/4 v5, 0x0

    move-object v0, p0

    move-object v1, p1

    move v2, p2

    move v3, p3

    invoke-virtual/range {v0 .. v5}, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->processPacket([BII[BI)I

    .line 222
    return-object v4

    .line 213
    :cond_12
    iget v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macSize:I

    if-ge p3, v0, :cond_1e

    .line 215
    new-instance v0, Lorg/spongycastle/crypto/InvalidCipherTextException;

    const-string v1, "data too short"

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

    throw v0

    .line 217
    :cond_1e
    iget v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->macSize:I

    sub-int v0, p3, v0

    new-array v4, v0, [B

    goto :goto_9
.end method

.method public reset()V
    .registers 2

    .prologue
    .line 155
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->cipher:Lorg/spongycastle/crypto/BlockCipher;

    invoke-interface {v0}, Lorg/spongycastle/crypto/BlockCipher;->reset()V

    .line 156
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->associatedText:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    invoke-virtual {v0}, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;->reset()V

    .line 157
    iget-object v0, p0, Lorg/spongycastle/crypto/modes/CCMBlockCipher;->data:Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;

    invoke-virtual {v0}, Lorg/spongycastle/crypto/modes/CCMBlockCipher$ExposedByteArrayOutputStream;->reset()V

    .line 158
    return-void
.end method