447 lines
16 KiB
Java
447 lines
16 KiB
Java
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package org.bouncycastle.crypto.signers;
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import com.google.common.base.Ascii;
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import com.google.common.primitives.UnsignedBytes;
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import java.security.SecureRandom;
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import org.bouncycastle.crypto.AsymmetricBlockCipher;
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import org.bouncycastle.crypto.CryptoException;
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import org.bouncycastle.crypto.Digest;
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import org.bouncycastle.crypto.InvalidCipherTextException;
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import org.bouncycastle.crypto.SignerWithRecovery;
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import org.bouncycastle.util.Arrays;
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/* loaded from: classes6.dex */
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public class ISO9796d2PSSSigner implements SignerWithRecovery {
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public static final int TRAILER_IMPLICIT = 188;
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public static final int TRAILER_RIPEMD128 = 13004;
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public static final int TRAILER_RIPEMD160 = 12748;
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public static final int TRAILER_SHA1 = 13260;
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public static final int TRAILER_SHA256 = 13516;
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public static final int TRAILER_SHA384 = 14028;
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public static final int TRAILER_SHA512 = 13772;
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public static final int TRAILER_WHIRLPOOL = 14284;
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private byte[] block;
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private AsymmetricBlockCipher cipher;
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private Digest digest;
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private boolean fullMessage;
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private int hLen;
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private int keyBits;
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private byte[] mBuf;
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private int messageLength;
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private byte[] preBlock;
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private int preMStart;
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private byte[] preSig;
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private int preTLength;
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private SecureRandom random;
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private byte[] recoveredMessage;
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private int saltLength;
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private byte[] standardSalt;
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private int trailer;
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@Override // org.bouncycastle.crypto.Signer
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public boolean verifySignature(byte[] bArr) {
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int i = this.hLen;
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byte[] bArr2 = new byte[i];
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this.digest.doFinal(bArr2, 0);
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byte[] bArr3 = this.preSig;
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if (bArr3 == null) {
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try {
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updateWithRecoveredMessage(bArr);
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} catch (Exception unused) {
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return false;
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}
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} else if (!Arrays.areEqual(bArr3, bArr)) {
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throw new IllegalStateException("updateWithRecoveredMessage called on different signature");
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}
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byte[] bArr4 = this.preBlock;
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int i2 = this.preMStart;
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int i3 = this.preTLength;
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this.preSig = null;
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this.preBlock = null;
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byte[] bArr5 = new byte[8];
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LtoOSP(this.recoveredMessage.length << 3, bArr5);
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this.digest.update(bArr5, 0, 8);
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byte[] bArr6 = this.recoveredMessage;
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if (bArr6.length != 0) {
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this.digest.update(bArr6, 0, bArr6.length);
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}
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this.digest.update(bArr2, 0, i);
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byte[] bArr7 = this.standardSalt;
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if (bArr7 != null) {
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this.digest.update(bArr7, 0, bArr7.length);
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} else {
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this.digest.update(bArr4, i2 + this.recoveredMessage.length, this.saltLength);
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}
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int digestSize = this.digest.getDigestSize();
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byte[] bArr8 = new byte[digestSize];
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this.digest.doFinal(bArr8, 0);
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int length = bArr4.length;
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boolean z = true;
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for (int i4 = 0; i4 != digestSize; i4++) {
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if (bArr8[i4] != bArr4[((length - i3) - digestSize) + i4]) {
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z = false;
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}
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}
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clearBlock(bArr4);
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clearBlock(bArr8);
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if (!z) {
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this.fullMessage = false;
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clearBlock(this.recoveredMessage);
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return false;
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}
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if (this.messageLength != 0) {
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if (!isSameAs(this.mBuf, this.recoveredMessage)) {
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clearBlock(this.mBuf);
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return false;
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}
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this.messageLength = 0;
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}
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clearBlock(this.mBuf);
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return true;
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}
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@Override // org.bouncycastle.crypto.SignerWithRecovery
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public void updateWithRecoveredMessage(byte[] bArr) throws InvalidCipherTextException {
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int i;
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byte[] processBlock = this.cipher.processBlock(bArr, 0, bArr.length);
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int length = processBlock.length;
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int i2 = (this.keyBits + 7) / 8;
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if (length < i2) {
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byte[] bArr2 = new byte[i2];
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System.arraycopy(processBlock, 0, bArr2, i2 - processBlock.length, processBlock.length);
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clearBlock(processBlock);
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processBlock = bArr2;
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}
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if (((processBlock[processBlock.length - 1] & UnsignedBytes.MAX_VALUE) ^ 188) == 0) {
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i = 1;
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} else {
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i = 2;
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int i3 = ((processBlock[processBlock.length - 2] & UnsignedBytes.MAX_VALUE) << 8) | (processBlock[processBlock.length - 1] & UnsignedBytes.MAX_VALUE);
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Integer trailer = ISOTrailers.getTrailer(this.digest);
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if (trailer == null) {
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throw new IllegalArgumentException("unrecognised hash in signature");
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}
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if (i3 != trailer.intValue()) {
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throw new IllegalStateException("signer initialised with wrong digest for trailer ".concat(String.valueOf(i3)));
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}
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}
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this.digest.doFinal(new byte[this.hLen], 0);
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int length2 = processBlock.length;
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int i4 = this.hLen;
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byte[] maskGeneratorFunction1 = maskGeneratorFunction1(processBlock, (length2 - i4) - i, i4, (processBlock.length - i4) - i);
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for (int i5 = 0; i5 != maskGeneratorFunction1.length; i5++) {
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processBlock[i5] = (byte) (processBlock[i5] ^ maskGeneratorFunction1[i5]);
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}
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processBlock[0] = (byte) (processBlock[0] & Ascii.DEL);
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int i6 = 0;
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while (i6 != processBlock.length && processBlock[i6] != 1) {
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i6++;
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}
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int i7 = i6 + 1;
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if (i7 >= processBlock.length) {
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clearBlock(processBlock);
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}
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this.fullMessage = i7 > 1;
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int length3 = (maskGeneratorFunction1.length - i7) - this.saltLength;
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byte[] bArr3 = new byte[length3];
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this.recoveredMessage = bArr3;
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System.arraycopy(processBlock, i7, bArr3, 0, length3);
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byte[] bArr4 = this.recoveredMessage;
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System.arraycopy(bArr4, 0, this.mBuf, 0, bArr4.length);
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this.preSig = bArr;
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this.preBlock = processBlock;
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this.preMStart = i7;
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this.preTLength = i;
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}
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@Override // org.bouncycastle.crypto.Signer
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public void update(byte[] bArr, int i, int i2) {
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if (this.preSig == null) {
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while (i2 > 0 && this.messageLength < this.mBuf.length) {
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update(bArr[i]);
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i++;
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i2--;
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}
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}
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if (i2 > 0) {
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this.digest.update(bArr, i, i2);
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}
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}
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@Override // org.bouncycastle.crypto.Signer
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public void update(byte b) {
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if (this.preSig == null) {
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int i = this.messageLength;
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byte[] bArr = this.mBuf;
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if (i < bArr.length) {
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this.messageLength = i + 1;
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bArr[i] = b;
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return;
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}
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}
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this.digest.update(b);
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}
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@Override // org.bouncycastle.crypto.Signer
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public void reset() {
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this.digest.reset();
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this.messageLength = 0;
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byte[] bArr = this.mBuf;
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if (bArr != null) {
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clearBlock(bArr);
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}
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byte[] bArr2 = this.recoveredMessage;
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if (bArr2 != null) {
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clearBlock(bArr2);
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this.recoveredMessage = null;
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}
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this.fullMessage = false;
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if (this.preSig != null) {
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this.preSig = null;
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clearBlock(this.preBlock);
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this.preBlock = null;
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}
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}
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/* JADX WARN: Removed duplicated region for block: B:13:0x006f */
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/* JADX WARN: Removed duplicated region for block: B:9:0x0060 */
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@Override // org.bouncycastle.crypto.Signer
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/*
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Code decompiled incorrectly, please refer to instructions dump.
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To view partially-correct add '--show-bad-code' argument
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*/
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public void init(boolean r4, org.bouncycastle.crypto.CipherParameters r5) {
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/*
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r3 = this;
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int r0 = r3.saltLength
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boolean r1 = r5 instanceof org.bouncycastle.crypto.params.ParametersWithRandom
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if (r1 == 0) goto L15
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org.bouncycastle.crypto.params.ParametersWithRandom r5 = (org.bouncycastle.crypto.params.ParametersWithRandom) r5
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org.bouncycastle.crypto.CipherParameters r1 = r5.getParameters()
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org.bouncycastle.crypto.params.RSAKeyParameters r1 = (org.bouncycastle.crypto.params.RSAKeyParameters) r1
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if (r4 == 0) goto L43
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java.security.SecureRandom r5 = r5.getRandom()
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goto L41
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L15:
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boolean r1 = r5 instanceof org.bouncycastle.crypto.params.ParametersWithSalt
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if (r1 == 0) goto L37
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org.bouncycastle.crypto.params.ParametersWithSalt r5 = (org.bouncycastle.crypto.params.ParametersWithSalt) r5
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org.bouncycastle.crypto.CipherParameters r0 = r5.getParameters()
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r1 = r0
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org.bouncycastle.crypto.params.RSAKeyParameters r1 = (org.bouncycastle.crypto.params.RSAKeyParameters) r1
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byte[] r5 = r5.getSalt()
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r3.standardSalt = r5
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int r0 = r5.length
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int r5 = r5.length
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int r2 = r3.saltLength
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if (r5 != r2) goto L2f
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goto L43
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L2f:
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java.lang.IllegalArgumentException r4 = new java.lang.IllegalArgumentException
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java.lang.String r5 = "Fixed salt is of wrong length"
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r4.<init>(r5)
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throw r4
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L37:
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r1 = r5
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org.bouncycastle.crypto.params.RSAKeyParameters r1 = (org.bouncycastle.crypto.params.RSAKeyParameters) r1
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if (r4 == 0) goto L43
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java.security.SecureRandom r5 = new java.security.SecureRandom
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r5.<init>()
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L41:
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r3.random = r5
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L43:
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org.bouncycastle.crypto.AsymmetricBlockCipher r5 = r3.cipher
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r5.init(r4, r1)
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java.math.BigInteger r4 = r1.getModulus()
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int r4 = r4.bitLength()
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r3.keyBits = r4
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int r4 = r4 + 7
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int r4 = r4 / 8
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byte[] r5 = new byte[r4]
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r3.block = r5
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int r5 = r3.trailer
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r1 = 188(0xbc, float:2.63E-43)
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if (r5 != r1) goto L6f
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org.bouncycastle.crypto.Digest r5 = r3.digest
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int r5 = r5.getDigestSize()
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int r4 = r4 - r5
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int r4 = r4 - r0
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int r4 = r4 + (-2)
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byte[] r4 = new byte[r4]
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r3.mBuf = r4
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goto L7d
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L6f:
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org.bouncycastle.crypto.Digest r5 = r3.digest
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int r5 = r5.getDigestSize()
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int r4 = r4 - r5
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int r4 = r4 - r0
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int r4 = r4 + (-3)
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byte[] r4 = new byte[r4]
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r3.mBuf = r4
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L7d:
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r3.reset()
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return
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*/
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throw new UnsupportedOperationException("Method not decompiled: org.bouncycastle.crypto.signers.ISO9796d2PSSSigner.init(boolean, org.bouncycastle.crypto.CipherParameters):void");
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}
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@Override // org.bouncycastle.crypto.SignerWithRecovery
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public boolean hasFullMessage() {
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return this.fullMessage;
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}
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@Override // org.bouncycastle.crypto.SignerWithRecovery
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public byte[] getRecoveredMessage() {
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return this.recoveredMessage;
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}
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@Override // org.bouncycastle.crypto.Signer
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public byte[] generateSignature() throws CryptoException {
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int digestSize = this.digest.getDigestSize();
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byte[] bArr = new byte[digestSize];
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this.digest.doFinal(bArr, 0);
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byte[] bArr2 = new byte[8];
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LtoOSP(this.messageLength << 3, bArr2);
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this.digest.update(bArr2, 0, 8);
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this.digest.update(this.mBuf, 0, this.messageLength);
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this.digest.update(bArr, 0, digestSize);
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byte[] bArr3 = this.standardSalt;
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if (bArr3 == null) {
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bArr3 = new byte[this.saltLength];
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this.random.nextBytes(bArr3);
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}
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this.digest.update(bArr3, 0, bArr3.length);
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int digestSize2 = this.digest.getDigestSize();
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byte[] bArr4 = new byte[digestSize2];
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this.digest.doFinal(bArr4, 0);
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int i = this.trailer == 188 ? 1 : 2;
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byte[] bArr5 = this.block;
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int length = bArr5.length;
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int i2 = this.messageLength;
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int length2 = (((length - i2) - bArr3.length) - this.hLen) - i;
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bArr5[length2 - 1] = 1;
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System.arraycopy(this.mBuf, 0, bArr5, length2, i2);
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System.arraycopy(bArr3, 0, this.block, length2 + this.messageLength, bArr3.length);
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byte[] maskGeneratorFunction1 = maskGeneratorFunction1(bArr4, 0, digestSize2, (this.block.length - this.hLen) - i);
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for (int i3 = 0; i3 != maskGeneratorFunction1.length; i3++) {
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byte[] bArr6 = this.block;
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bArr6[i3] = (byte) (bArr6[i3] ^ maskGeneratorFunction1[i3]);
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}
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byte[] bArr7 = this.block;
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int length3 = bArr7.length;
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int i4 = this.hLen;
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System.arraycopy(bArr4, 0, bArr7, (length3 - i4) - i, i4);
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int i5 = this.trailer;
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if (i5 == 188) {
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byte[] bArr8 = this.block;
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|
|
bArr8[bArr8.length - 1] = PSSSigner.TRAILER_IMPLICIT;
|
||
|
|
} else {
|
||
|
|
byte[] bArr9 = this.block;
|
||
|
|
bArr9[bArr9.length - 2] = (byte) (i5 >>> 8);
|
||
|
|
bArr9[bArr9.length - 1] = (byte) i5;
|
||
|
|
}
|
||
|
|
byte[] bArr10 = this.block;
|
||
|
|
bArr10[0] = (byte) (bArr10[0] & Ascii.DEL);
|
||
|
|
byte[] processBlock = this.cipher.processBlock(bArr10, 0, bArr10.length);
|
||
|
|
int i6 = this.messageLength;
|
||
|
|
byte[] bArr11 = new byte[i6];
|
||
|
|
this.recoveredMessage = bArr11;
|
||
|
|
byte[] bArr12 = this.mBuf;
|
||
|
|
this.fullMessage = i6 <= bArr12.length;
|
||
|
|
System.arraycopy(bArr12, 0, bArr11, 0, i6);
|
||
|
|
clearBlock(this.mBuf);
|
||
|
|
clearBlock(this.block);
|
||
|
|
this.messageLength = 0;
|
||
|
|
return processBlock;
|
||
|
|
}
|
||
|
|
|
||
|
|
private byte[] maskGeneratorFunction1(byte[] bArr, int i, int i2, int i3) {
|
||
|
|
int i4;
|
||
|
|
byte[] bArr2 = new byte[i3];
|
||
|
|
byte[] bArr3 = new byte[this.hLen];
|
||
|
|
byte[] bArr4 = new byte[4];
|
||
|
|
this.digest.reset();
|
||
|
|
int i5 = 0;
|
||
|
|
while (true) {
|
||
|
|
i4 = this.hLen;
|
||
|
|
if (i5 >= i3 / i4) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
ItoOSP(i5, bArr4);
|
||
|
|
this.digest.update(bArr, i, i2);
|
||
|
|
this.digest.update(bArr4, 0, 4);
|
||
|
|
this.digest.doFinal(bArr3, 0);
|
||
|
|
int i6 = this.hLen;
|
||
|
|
System.arraycopy(bArr3, 0, bArr2, i5 * i6, i6);
|
||
|
|
i5++;
|
||
|
|
}
|
||
|
|
if (i4 * i5 < i3) {
|
||
|
|
ItoOSP(i5, bArr4);
|
||
|
|
this.digest.update(bArr, i, i2);
|
||
|
|
this.digest.update(bArr4, 0, 4);
|
||
|
|
this.digest.doFinal(bArr3, 0);
|
||
|
|
int i7 = i5 * this.hLen;
|
||
|
|
System.arraycopy(bArr3, 0, bArr2, i7, i3 - i7);
|
||
|
|
}
|
||
|
|
return bArr2;
|
||
|
|
}
|
||
|
|
|
||
|
|
private boolean isSameAs(byte[] bArr, byte[] bArr2) {
|
||
|
|
boolean z = this.messageLength == bArr2.length;
|
||
|
|
for (int i = 0; i != bArr2.length; i++) {
|
||
|
|
if (bArr[i] != bArr2[i]) {
|
||
|
|
z = false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return z;
|
||
|
|
}
|
||
|
|
|
||
|
|
private void clearBlock(byte[] bArr) {
|
||
|
|
for (int i = 0; i != bArr.length; i++) {
|
||
|
|
bArr[i] = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
private void LtoOSP(long j, byte[] bArr) {
|
||
|
|
bArr[0] = (byte) (j >>> 56);
|
||
|
|
bArr[1] = (byte) (j >>> 48);
|
||
|
|
bArr[2] = (byte) (j >>> 40);
|
||
|
|
bArr[3] = (byte) (j >>> 32);
|
||
|
|
bArr[4] = (byte) (j >>> 24);
|
||
|
|
bArr[5] = (byte) (j >>> 16);
|
||
|
|
bArr[6] = (byte) (j >>> 8);
|
||
|
|
bArr[7] = (byte) j;
|
||
|
|
}
|
||
|
|
|
||
|
|
private void ItoOSP(int i, byte[] bArr) {
|
||
|
|
bArr[0] = (byte) (i >>> 24);
|
||
|
|
bArr[1] = (byte) (i >>> 16);
|
||
|
|
bArr[2] = (byte) (i >>> 8);
|
||
|
|
bArr[3] = (byte) i;
|
||
|
|
}
|
||
|
|
|
||
|
|
public ISO9796d2PSSSigner(AsymmetricBlockCipher asymmetricBlockCipher, Digest digest, int i, boolean z) {
|
||
|
|
int intValue;
|
||
|
|
this.cipher = asymmetricBlockCipher;
|
||
|
|
this.digest = digest;
|
||
|
|
this.hLen = digest.getDigestSize();
|
||
|
|
this.saltLength = i;
|
||
|
|
if (z) {
|
||
|
|
intValue = 188;
|
||
|
|
} else {
|
||
|
|
Integer trailer = ISOTrailers.getTrailer(digest);
|
||
|
|
if (trailer == null) {
|
||
|
|
StringBuilder sb = new StringBuilder("no valid trailer for digest: ");
|
||
|
|
sb.append(digest.getAlgorithmName());
|
||
|
|
throw new IllegalArgumentException(sb.toString());
|
||
|
|
}
|
||
|
|
intValue = trailer.intValue();
|
||
|
|
}
|
||
|
|
this.trailer = intValue;
|
||
|
|
}
|
||
|
|
|
||
|
|
public ISO9796d2PSSSigner(AsymmetricBlockCipher asymmetricBlockCipher, Digest digest, int i) {
|
||
|
|
this(asymmetricBlockCipher, digest, i, false);
|
||
|
|
}
|
||
|
|
}
|