ISO9796d2Signer.smali

.class public Lorg/spongycastle/crypto/signers/ISO9796d2Signer;
.super Ljava/lang/Object;
.source "ISO9796d2Signer.java"

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


# static fields
.field public static final TRAILER_IMPLICIT:I = 0xbc

.field public static final TRAILER_RIPEMD128:I = 0x32cc

.field public static final TRAILER_RIPEMD160:I = 0x31cc

.field public static final TRAILER_SHA1:I = 0x33cc

.field public static final TRAILER_SHA256:I = 0x34cc

.field public static final TRAILER_SHA384:I = 0x36cc

.field public static final TRAILER_SHA512:I = 0x35cc

.field public static final TRAILER_WHIRLPOOL:I = 0x37cc


# instance fields
.field private block:[B

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

.field private digest:Lorg/spongycastle/crypto/Digest;

.field private fullMessage:Z

.field private keyBits:I

.field private mBuf:[B

.field private messageLength:I

.field private preBlock:[B

.field private preSig:[B

.field private recoveredMessage:[B

.field private trailer:I


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

    .prologue
    .line 93
    const/4 v0, 0x0

    invoke-direct {p0, p1, p2, v0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;-><init>(Lorg/spongycastle/crypto/AsymmetricBlockCipher;Lorg/spongycastle/crypto/Digest;Z)V

    .line 94
    return-void
.end method

.method public constructor <init>(Lorg/spongycastle/crypto/AsymmetricBlockCipher;Lorg/spongycastle/crypto/Digest;Z)V
    .registers 7

    .prologue
    .line 60
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 61
    iput-object p1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->cipher:Lorg/spongycastle/crypto/AsymmetricBlockCipher;

    .line 62
    iput-object p2, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    .line 64
    if-eqz p3, :cond_e

    .line 66
    const/16 v0, 0xbc

    iput v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->trailer:I

    .line 74
    :goto_d
    return-void

    .line 70
    :cond_e
    invoke-static {p2}, Lorg/spongycastle/crypto/signers/ISOTrailers;->getTrailer(Lorg/spongycastle/crypto/Digest;)Ljava/lang/Integer;

    move-result-object v0

    .line 72
    if-eqz v0, :cond_1b

    .line 74
    invoke-virtual {v0}, Ljava/lang/Integer;->intValue()I

    move-result v0

    iput v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->trailer:I

    goto :goto_d

    .line 78
    :cond_1b
    new-instance v0, Ljava/lang/IllegalArgumentException;

    new-instance v1, Ljava/lang/StringBuilder;

    const-string v2, "no valid trailer for digest: "

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

    invoke-interface {p2}, Lorg/spongycastle/crypto/Digest;->getAlgorithmName()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
.end method

.method private clearBlock([B)V
    .registers 5

    .prologue
    const/4 v1, 0x0

    .line 169
    move v0, v1

    :goto_2
    array-length v2, p1

    if-eq v0, v2, :cond_a

    .line 171
    aput-byte v1, p1, v0

    .line 169
    add-int/lit8 v0, v0, 0x1

    goto :goto_2

    .line 173
    :cond_a
    return-void
.end method

.method private isSameAs([B[B)Z
    .registers 8

    .prologue
    const/4 v1, 0x0

    .line 127
    const/4 v0, 0x1

    .line 129
    iget v2, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    iget-object v3, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    array-length v3, v3

    if-le v2, v3, :cond_21

    .line 131
    iget-object v2, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    array-length v2, v2

    array-length v3, p2

    if-le v2, v3, :cond_10

    move v0, v1

    :cond_10
    move v2, v0

    move v0, v1

    .line 136
    :goto_12
    iget-object v3, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    array-length v3, v3

    if-eq v0, v3, :cond_36

    .line 138
    aget-byte v3, p1, v0

    aget-byte v4, p2, v0

    if-eq v3, v4, :cond_1e

    move v2, v1

    .line 136
    :cond_1e
    add-int/lit8 v0, v0, 0x1

    goto :goto_12

    .line 146
    :cond_21
    iget v2, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    array-length v3, p2

    if-eq v2, v3, :cond_27

    move v0, v1

    :cond_27
    move v2, v0

    move v0, v1

    .line 151
    :goto_29
    array-length v3, p2

    if-eq v0, v3, :cond_36

    .line 153
    aget-byte v3, p1, v0

    aget-byte v4, p2, v0

    if-eq v3, v4, :cond_33

    move v2, v1

    .line 151
    :cond_33
    add-int/lit8 v0, v0, 0x1

    goto :goto_29

    .line 160
    :cond_36
    return v2
.end method

.method private returnFalse([B)Z
    .registers 3

    .prologue
    .line 587
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    invoke-direct {p0, v0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->clearBlock([B)V

    .line 588
    invoke-direct {p0, p1}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->clearBlock([B)V

    .line 590
    const/4 v0, 0x0

    return v0
.end method


# virtual methods
.method public generateSignature()[B
    .registers 8

    .prologue
    const/4 v2, 0x0

    .line 334
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    invoke-interface {v0}, Lorg/spongycastle/crypto/Digest;->getDigestSize()I

    move-result v3

    .line 339
    iget v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->trailer:I

    const/16 v1, 0xbc

    if-ne v0, v1, :cond_5c

    .line 341
    const/16 v1, 0x8

    .line 342
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    array-length v0, v0

    sub-int/2addr v0, v3

    add-int/lit8 v0, v0, -0x1

    .line 343
    iget-object v4, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    iget-object v5, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    invoke-interface {v4, v5, v0}, Lorg/spongycastle/crypto/Digest;->doFinal([BI)I

    .line 344
    iget-object v4, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    iget-object v5, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    array-length v5, v5

    add-int/lit8 v5, v5, -0x1

    const/16 v6, -0x44

    aput-byte v6, v4, v5

    .line 356
    :goto_27
    iget v4, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    add-int/2addr v3, v4

    shl-int/lit8 v3, v3, 0x3

    add-int/2addr v1, v3

    add-int/lit8 v1, v1, 0x4

    iget v3, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->keyBits:I

    sub-int/2addr v1, v3

    .line 358
    if-lez v1, :cond_86

    .line 360
    iget v3, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    add-int/lit8 v1, v1, 0x7

    div-int/lit8 v1, v1, 0x8

    sub-int/2addr v3, v1

    .line 361
    const/16 v1, 0x60

    .line 363
    sub-int/2addr v0, v3

    .line 365
    iget-object v4, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    iget-object v5, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    invoke-static {v4, v2, v5, v0, v3}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 367
    new-array v3, v3, [B

    iput-object v3, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    move v3, v1

    move v1, v0

    .line 379
    :goto_4b
    add-int/lit8 v0, v1, -0x1

    if-lez v0, :cond_dd

    .line 381
    add-int/lit8 v0, v1, -0x1

    :goto_51
    if-eqz v0, :cond_9d

    .line 383
    iget-object v4, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    const/16 v5, -0x45

    aput-byte v5, v4, v0

    .line 381
    add-int/lit8 v0, v0, -0x1

    goto :goto_51

    .line 348
    :cond_5c
    const/16 v1, 0x10

    .line 349
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    array-length v0, v0

    sub-int/2addr v0, v3

    add-int/lit8 v0, v0, -0x2

    .line 350
    iget-object v4, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    iget-object v5, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    invoke-interface {v4, v5, v0}, Lorg/spongycastle/crypto/Digest;->doFinal([BI)I

    .line 351
    iget-object v4, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    iget-object v5, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    array-length v5, v5

    add-int/lit8 v5, v5, -0x2

    iget v6, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->trailer:I

    ushr-int/lit8 v6, v6, 0x8

    int-to-byte v6, v6

    aput-byte v6, v4, v5

    .line 352
    iget-object v4, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    iget-object v5, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    array-length v5, v5

    add-int/lit8 v5, v5, -0x1

    iget v6, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->trailer:I

    int-to-byte v6, v6

    aput-byte v6, v4, v5

    goto :goto_27

    .line 371
    :cond_86
    const/16 v1, 0x40

    .line 372
    iget v3, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    sub-int/2addr v0, v3

    .line 374
    iget-object v3, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    iget-object v4, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    iget v5, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    invoke-static {v3, v2, v4, v0, v5}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 376
    iget v3, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    new-array v3, v3, [B

    iput-object v3, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    move v3, v1

    move v1, v0

    goto :goto_4b

    .line 385
    :cond_9d
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    add-int/lit8 v1, v1, -0x1

    aget-byte v4, v0, v1

    xor-int/lit8 v4, v4, 0x1

    int-to-byte v4, v4

    aput-byte v4, v0, v1

    .line 386
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    const/16 v1, 0xb

    aput-byte v1, v0, v2

    .line 387
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    aget-byte v1, v0, v2

    or-int/2addr v1, v3

    int-to-byte v1, v1

    aput-byte v1, v0, v2

    .line 395
    :goto_b6
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->cipher:Lorg/spongycastle/crypto/AsymmetricBlockCipher;

    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    iget-object v4, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    array-length v4, v4

    invoke-interface {v0, v1, v2, v4}, Lorg/spongycastle/crypto/AsymmetricBlockCipher;->processBlock([BII)[B

    move-result-object v1

    .line 397
    and-int/lit8 v0, v3, 0x20

    if-nez v0, :cond_ec

    const/4 v0, 0x1

    :goto_c6
    iput-boolean v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->fullMessage:Z

    .line 398
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    iget-object v3, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    iget-object v4, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    array-length v4, v4

    invoke-static {v0, v2, v3, v2, v4}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 400
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    invoke-direct {p0, v0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->clearBlock([B)V

    .line 401
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    invoke-direct {p0, v0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->clearBlock([B)V

    .line 403
    return-object v1

    .line 391
    :cond_dd
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    const/16 v1, 0xa

    aput-byte v1, v0, v2

    .line 392
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    aget-byte v1, v0, v2

    or-int/2addr v1, v3

    int-to-byte v1, v1

    aput-byte v1, v0, v2

    goto :goto_b6

    :cond_ec
    move v0, v2

    .line 397
    goto :goto_c6
.end method

.method public getRecoveredMessage()[B
    .registers 2

    .prologue
    .line 613
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    return-object v0
.end method

.method public hasFullMessage()Z
    .registers 2

    .prologue
    .line 601
    iget-boolean v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->fullMessage:Z

    return v0
.end method

.method public init(ZLorg/spongycastle/crypto/CipherParameters;)V
    .registers 5

    .prologue
    .line 100
    check-cast p2, Lorg/spongycastle/crypto/params/RSAKeyParameters;

    .line 102
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->cipher:Lorg/spongycastle/crypto/AsymmetricBlockCipher;

    invoke-interface {v0, p1, p2}, Lorg/spongycastle/crypto/AsymmetricBlockCipher;->init(ZLorg/spongycastle/crypto/CipherParameters;)V

    .line 104
    invoke-virtual {p2}, Lorg/spongycastle/crypto/params/RSAKeyParameters;->getModulus()Ljava/math/BigInteger;

    move-result-object v0

    invoke-virtual {v0}, Ljava/math/BigInteger;->bitLength()I

    move-result v0

    iput v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->keyBits:I

    .line 106
    iget v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->keyBits:I

    add-int/lit8 v0, v0, 0x7

    div-int/lit8 v0, v0, 0x8

    new-array v0, v0, [B

    iput-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    .line 108
    iget v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->trailer:I

    const/16 v1, 0xbc

    if-ne v0, v1, :cond_35

    .line 110
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    array-length v0, v0

    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    invoke-interface {v1}, Lorg/spongycastle/crypto/Digest;->getDigestSize()I

    move-result v1

    sub-int/2addr v0, v1

    add-int/lit8 v0, v0, -0x2

    new-array v0, v0, [B

    iput-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    .line 117
    :goto_31
    invoke-virtual {p0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->reset()V

    .line 118
    return-void

    .line 114
    :cond_35
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->block:[B

    array-length v0, v0

    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    invoke-interface {v1}, Lorg/spongycastle/crypto/Digest;->getDigestSize()I

    move-result v1

    sub-int/2addr v0, v1

    add-int/lit8 v0, v0, -0x3

    new-array v0, v0, [B

    iput-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    goto :goto_31
.end method

.method public reset()V
    .registers 4

    .prologue
    const/4 v2, 0x0

    const/4 v1, 0x0

    .line 307
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

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

    .line 308
    iput v2, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    .line 309
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    invoke-direct {p0, v0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->clearBlock([B)V

    .line 311
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    if-eqz v0, :cond_17

    .line 313
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    invoke-direct {p0, v0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->clearBlock([B)V

    .line 316
    :cond_17
    iput-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    .line 317
    iput-boolean v2, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->fullMessage:Z

    .line 319
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->preSig:[B

    if-eqz v0, :cond_28

    .line 321
    iput-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->preSig:[B

    .line 322
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->preBlock:[B

    invoke-direct {p0, v0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->clearBlock([B)V

    .line 323
    iput-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->preBlock:[B

    .line 325
    :cond_28
    return-void
.end method

.method public update(B)V
    .registers 4

    .prologue
    .line 273
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    invoke-interface {v0, p1}, Lorg/spongycastle/crypto/Digest;->update(B)V

    .line 275
    iget v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    array-length v1, v1

    if-ge v0, v1, :cond_12

    .line 277
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    iget v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    aput-byte p1, v0, v1

    .line 280
    :cond_12
    iget v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    add-int/lit8 v0, v0, 0x1

    iput v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    .line 281
    return-void
.end method

.method public update([BII)V
    .registers 6

    .prologue
    .line 291
    :goto_0
    if-lez p3, :cond_13

    iget v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    array-length v1, v1

    if-ge v0, v1, :cond_13

    .line 293
    aget-byte v0, p1, p2

    invoke-virtual {p0, v0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->update(B)V

    .line 294
    add-int/lit8 p2, p2, 0x1

    .line 295
    add-int/lit8 p3, p3, -0x1

    goto :goto_0

    .line 298
    :cond_13
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    invoke-interface {v0, p1, p2, p3}, Lorg/spongycastle/crypto/Digest;->update([BII)V

    .line 299
    iget v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    add-int/2addr v0, p3

    iput v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    .line 300
    return-void
.end method

.method public updateWithRecoveredMessage([B)V
    .registers 8

    .prologue
    const/4 v1, 0x1

    const/4 v3, 0x0

    .line 178
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->cipher:Lorg/spongycastle/crypto/AsymmetricBlockCipher;

    array-length v2, p1

    invoke-interface {v0, p1, v3, v2}, Lorg/spongycastle/crypto/AsymmetricBlockCipher;->processBlock([BII)[B

    move-result-object v4

    .line 180
    aget-byte v0, v4, v3

    and-int/lit16 v0, v0, 0xc0

    xor-int/lit8 v0, v0, 0x40

    if-eqz v0, :cond_19

    .line 182
    new-instance v0, Lorg/spongycastle/crypto/InvalidCipherTextException;

    const-string v1, "malformed signature"

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

    throw v0

    .line 185
    :cond_19
    array-length v0, v4

    add-int/lit8 v0, v0, -0x1

    aget-byte v0, v4, v0

    and-int/lit8 v0, v0, 0xf

    xor-int/lit8 v0, v0, 0xc

    if-eqz v0, :cond_2c

    .line 187
    new-instance v0, Lorg/spongycastle/crypto/InvalidCipherTextException;

    const-string v1, "malformed signature"

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

    throw v0

    .line 192
    :cond_2c
    array-length v0, v4

    add-int/lit8 v0, v0, -0x1

    aget-byte v0, v4, v0

    and-int/lit16 v0, v0, 0xff

    xor-int/lit16 v0, v0, 0xbc

    if-nez v0, :cond_47

    move v0, v1

    :goto_38
    move v2, v3

    .line 221
    :goto_39
    array-length v5, v4

    if-eq v2, v5, :cond_85

    .line 223
    aget-byte v5, v4, v2

    and-int/lit8 v5, v5, 0xf

    xor-int/lit8 v5, v5, 0xa

    if-eqz v5, :cond_85

    .line 221
    add-int/lit8 v2, v2, 0x1

    goto :goto_39

    .line 198
    :cond_47
    array-length v0, v4

    add-int/lit8 v0, v0, -0x2

    aget-byte v0, v4, v0

    and-int/lit16 v0, v0, 0xff

    shl-int/lit8 v0, v0, 0x8

    array-length v2, v4

    add-int/lit8 v2, v2, -0x1

    aget-byte v2, v4, v2

    and-int/lit16 v2, v2, 0xff

    or-int/2addr v0, v2

    .line 199
    iget-object v2, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    invoke-static {v2}, Lorg/spongycastle/crypto/signers/ISOTrailers;->getTrailer(Lorg/spongycastle/crypto/Digest;)Ljava/lang/Integer;

    move-result-object v2

    .line 201
    if-eqz v2, :cond_7b

    .line 203
    invoke-virtual {v2}, Ljava/lang/Integer;->intValue()I

    move-result v2

    if-eq v0, v2, :cond_83

    .line 205
    new-instance v1, Ljava/lang/IllegalStateException;

    new-instance v2, Ljava/lang/StringBuilder;

    const-string v3, "signer initialised with wrong digest for trailer "

    invoke-direct {v2, v3}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V

    invoke-virtual {v2, v0}, Ljava/lang/StringBuilder;->append(I)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 210
    :cond_7b
    new-instance v0, Ljava/lang/IllegalArgumentException;

    const-string v1, "unrecognised hash in signature"

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

    throw v0

    .line 213
    :cond_83
    const/4 v0, 0x2

    goto :goto_38

    .line 229
    :cond_85
    add-int/lit8 v2, v2, 0x1

    .line 231
    array-length v5, v4

    sub-int v0, v5, v0

    iget-object v5, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    invoke-interface {v5}, Lorg/spongycastle/crypto/Digest;->getDigestSize()I

    move-result v5

    sub-int/2addr v0, v5

    .line 236
    sub-int v5, v0, v2

    if-gtz v5, :cond_9d

    .line 238
    new-instance v0, Lorg/spongycastle/crypto/InvalidCipherTextException;

    const-string v1, "malformed block"

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

    throw v0

    .line 244
    :cond_9d
    aget-byte v5, v4, v3

    and-int/lit8 v5, v5, 0x20

    if-nez v5, :cond_d0

    .line 246
    iput-boolean v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->fullMessage:Z

    .line 248
    sub-int/2addr v0, v2

    new-array v0, v0, [B

    iput-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    .line 249
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    array-length v1, v1

    invoke-static {v4, v2, v0, v3, v1}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 259
    :goto_b2
    iput-object p1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->preSig:[B

    .line 260
    iput-object v4, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->preBlock:[B

    .line 262
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    iget-object v2, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    array-length v2, v2

    invoke-interface {v0, v1, v3, v2}, Lorg/spongycastle/crypto/Digest;->update([BII)V

    .line 263
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    array-length v0, v0

    iput v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    .line 264
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    iget-object v2, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    array-length v2, v2

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

    .line 265
    return-void

    .line 253
    :cond_d0
    iput-boolean v3, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->fullMessage:Z

    .line 255
    sub-int/2addr v0, v2

    new-array v0, v0, [B

    iput-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    .line 256
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    array-length v1, v1

    invoke-static {v4, v2, v0, v3, v1}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    goto :goto_b2
.end method

.method public verifySignature([B)Z
    .registers 13

    .prologue
    const/4 v1, 0x0

    const/4 v2, 0x1

    const/4 v4, 0x0

    .line 415
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->preSig:[B

    if-nez v0, :cond_1c

    .line 419
    :try_start_7
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->cipher:Lorg/spongycastle/crypto/AsymmetricBlockCipher;

    const/4 v1, 0x0

    array-length v3, p1

    invoke-interface {v0, p1, v1, v3}, Lorg/spongycastle/crypto/AsymmetricBlockCipher;->processBlock([BII)[B
    :try_end_e
    .catch Ljava/lang/Exception; {:try_start_7 .. :try_end_e} :catch_160

    move-result-object v0

    .line 439
    :goto_f
    aget-byte v1, v0, v4

    and-int/lit16 v1, v1, 0xc0

    xor-int/lit8 v1, v1, 0x40

    if-eqz v1, :cond_33

    .line 441
    invoke-direct {p0, v0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->returnFalse([B)Z

    move-result v4

    .line 582
    :goto_1b
    return v4

    .line 428
    :cond_1c
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->preSig:[B

    invoke-static {v0, p1}, Lorg/spongycastle/util/Arrays;->areEqual([B[B)Z

    move-result v0

    if-nez v0, :cond_2c

    .line 430
    new-instance v0, Ljava/lang/IllegalStateException;

    const-string v1, "updateWithRecoveredMessage called on different signature"

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

    throw v0

    .line 433
    :cond_2c
    iget-object v0, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->preBlock:[B

    .line 435
    iput-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->preSig:[B

    .line 436
    iput-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->preBlock:[B

    goto :goto_f

    .line 444
    :cond_33
    array-length v1, v0

    add-int/lit8 v1, v1, -0x1

    aget-byte v1, v0, v1

    and-int/lit8 v1, v1, 0xf

    xor-int/lit8 v1, v1, 0xc

    if-eqz v1, :cond_43

    .line 446
    invoke-direct {p0, v0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->returnFalse([B)Z

    move-result v4

    goto :goto_1b

    .line 451
    :cond_43
    array-length v1, v0

    add-int/lit8 v1, v1, -0x1

    aget-byte v1, v0, v1

    and-int/lit16 v1, v1, 0xff

    xor-int/lit16 v1, v1, 0xbc

    if-nez v1, :cond_5e

    move v1, v2

    :goto_4f
    move v3, v4

    .line 480
    :goto_50
    array-length v5, v0

    if-eq v3, v5, :cond_9c

    .line 482
    aget-byte v5, v0, v3

    and-int/lit8 v5, v5, 0xf

    xor-int/lit8 v5, v5, 0xa

    if-eqz v5, :cond_9c

    .line 480
    add-int/lit8 v3, v3, 0x1

    goto :goto_50

    .line 457
    :cond_5e
    array-length v1, v0

    add-int/lit8 v1, v1, -0x2

    aget-byte v1, v0, v1

    and-int/lit16 v1, v1, 0xff

    shl-int/lit8 v1, v1, 0x8

    array-length v3, v0

    add-int/lit8 v3, v3, -0x1

    aget-byte v3, v0, v3

    and-int/lit16 v3, v3, 0xff

    or-int/2addr v1, v3

    .line 458
    iget-object v3, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    invoke-static {v3}, Lorg/spongycastle/crypto/signers/ISOTrailers;->getTrailer(Lorg/spongycastle/crypto/Digest;)Ljava/lang/Integer;

    move-result-object v3

    .line 460
    if-eqz v3, :cond_92

    .line 462
    invoke-virtual {v3}, Ljava/lang/Integer;->intValue()I

    move-result v3

    if-eq v1, v3, :cond_9a

    .line 464
    new-instance v0, Ljava/lang/IllegalStateException;

    new-instance v2, Ljava/lang/StringBuilder;

    const-string v3, "signer initialised with wrong digest for trailer "

    invoke-direct {v2, v3}, Ljava/lang/StringBuilder;-><init>(Ljava/lang/String;)V

    invoke-virtual {v2, v1}, Ljava/lang/StringBuilder;->append(I)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/IllegalStateException;-><init>(Ljava/lang/String;)V

    throw v0

    .line 469
    :cond_92
    new-instance v0, Ljava/lang/IllegalArgumentException;

    const-string v1, "unrecognised hash in signature"

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

    throw v0

    .line 472
    :cond_9a
    const/4 v1, 0x2

    goto :goto_4f

    .line 488
    :cond_9c
    add-int/lit8 v5, v3, 0x1

    .line 493
    iget-object v3, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    invoke-interface {v3}, Lorg/spongycastle/crypto/Digest;->getDigestSize()I

    move-result v3

    new-array v6, v3, [B

    .line 495
    array-length v3, v0

    sub-int v1, v3, v1

    array-length v3, v6

    sub-int v7, v1, v3

    .line 500
    sub-int v1, v7, v5

    if-gtz v1, :cond_b6

    .line 502
    invoke-direct {p0, v0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->returnFalse([B)Z

    move-result v4

    goto/16 :goto_1b

    .line 508
    :cond_b6
    aget-byte v1, v0, v4

    and-int/lit8 v1, v1, 0x20

    if-nez v1, :cond_11e

    .line 510
    iput-boolean v2, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->fullMessage:Z

    .line 513
    iget v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    sub-int v3, v7, v5

    if-le v1, v3, :cond_ca

    .line 515
    invoke-direct {p0, v0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->returnFalse([B)Z

    move-result v4

    goto/16 :goto_1b

    .line 518
    :cond_ca
    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    invoke-interface {v1}, Lorg/spongycastle/crypto/Digest;->reset()V

    .line 519
    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    sub-int v3, v7, v5

    invoke-interface {v1, v0, v5, v3}, Lorg/spongycastle/crypto/Digest;->update([BII)V

    .line 520
    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    invoke-interface {v1, v6, v4}, Lorg/spongycastle/crypto/Digest;->doFinal([BI)I

    move v1, v4

    move v3, v2

    .line 524
    :goto_dd
    array-length v8, v6

    if-eq v1, v8, :cond_f4

    .line 526
    add-int v8, v7, v1

    aget-byte v9, v0, v8

    aget-byte v10, v6, v1

    xor-int/2addr v9, v10

    int-to-byte v9, v9

    aput-byte v9, v0, v8

    .line 527
    add-int v8, v7, v1

    aget-byte v8, v0, v8

    if-eqz v8, :cond_f1

    move v3, v4

    .line 524
    :cond_f1
    add-int/lit8 v1, v1, 0x1

    goto :goto_dd

    .line 533
    :cond_f4
    if-nez v3, :cond_fc

    .line 535
    invoke-direct {p0, v0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->returnFalse([B)Z

    move-result v4

    goto/16 :goto_1b

    .line 538
    :cond_fc
    sub-int v1, v7, v5

    new-array v1, v1, [B

    iput-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    .line 539
    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    iget-object v3, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    array-length v3, v3

    invoke-static {v0, v5, v1, v4, v3}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    .line 571
    :goto_10a
    iget v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->messageLength:I

    if-eqz v1, :cond_155

    .line 573
    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    iget-object v3, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    invoke-direct {p0, v1, v3}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->isSameAs([B[B)Z

    move-result v1

    if-nez v1, :cond_155

    .line 575
    invoke-direct {p0, v0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->returnFalse([B)Z

    move-result v4

    goto/16 :goto_1b

    .line 543
    :cond_11e
    iput-boolean v4, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->fullMessage:Z

    .line 545
    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->digest:Lorg/spongycastle/crypto/Digest;

    invoke-interface {v1, v6, v4}, Lorg/spongycastle/crypto/Digest;->doFinal([BI)I

    move v1, v4

    move v3, v2

    .line 549
    :goto_127
    array-length v8, v6

    if-eq v1, v8, :cond_13e

    .line 551
    add-int v8, v7, v1

    aget-byte v9, v0, v8

    aget-byte v10, v6, v1

    xor-int/2addr v9, v10

    int-to-byte v9, v9

    aput-byte v9, v0, v8

    .line 552
    add-int v8, v7, v1

    aget-byte v8, v0, v8

    if-eqz v8, :cond_13b

    move v3, v4

    .line 549
    :cond_13b
    add-int/lit8 v1, v1, 0x1

    goto :goto_127

    .line 558
    :cond_13e
    if-nez v3, :cond_146

    .line 560
    invoke-direct {p0, v0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->returnFalse([B)Z

    move-result v4

    goto/16 :goto_1b

    .line 563
    :cond_146
    sub-int v1, v7, v5

    new-array v1, v1, [B

    iput-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    .line 564
    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    iget-object v3, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->recoveredMessage:[B

    array-length v3, v3

    invoke-static {v0, v5, v1, v4, v3}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    goto :goto_10a

    .line 579
    :cond_155
    iget-object v1, p0, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->mBuf:[B

    invoke-direct {p0, v1}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->clearBlock([B)V

    .line 580
    invoke-direct {p0, v0}, Lorg/spongycastle/crypto/signers/ISO9796d2Signer;->clearBlock([B)V

    move v4, v2

    .line 582
    goto/16 :goto_1b

    .line 423
    :catch_160
    move-exception v0

    goto/16 :goto_1b
.end method