83 lines
2.2 KiB
Java
83 lines
2.2 KiB
Java
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package org.bouncycastle.crypto;
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/* loaded from: classes6.dex */
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public class BufferedAsymmetricBlockCipher {
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protected byte[] buf;
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protected int bufOff;
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private final AsymmetricBlockCipher cipher;
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public void reset() {
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if (this.buf != null) {
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int i = 0;
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while (true) {
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byte[] bArr = this.buf;
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if (i >= bArr.length) {
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break;
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}
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bArr[i] = 0;
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i++;
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}
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}
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this.bufOff = 0;
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}
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public void processBytes(byte[] bArr, int i, int i2) {
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if (i2 == 0) {
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return;
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}
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if (i2 < 0) {
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throw new IllegalArgumentException("Can't have a negative input length!");
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}
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int i3 = this.bufOff;
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byte[] bArr2 = this.buf;
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if (i3 + i2 > bArr2.length) {
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throw new DataLengthException("attempt to process message too long for cipher");
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}
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System.arraycopy(bArr, i, bArr2, i3, i2);
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this.bufOff += i2;
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}
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public void processByte(byte b) {
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int i = this.bufOff;
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byte[] bArr = this.buf;
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if (i >= bArr.length) {
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throw new DataLengthException("attempt to process message too long for cipher");
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}
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this.bufOff = i + 1;
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bArr[i] = b;
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}
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public void init(boolean z, CipherParameters cipherParameters) {
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reset();
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this.cipher.init(z, cipherParameters);
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this.buf = new byte[this.cipher.getInputBlockSize() + (z ? 1 : 0)];
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this.bufOff = 0;
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}
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public AsymmetricBlockCipher getUnderlyingCipher() {
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return this.cipher;
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}
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public int getOutputBlockSize() {
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return this.cipher.getOutputBlockSize();
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}
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public int getInputBlockSize() {
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return this.cipher.getInputBlockSize();
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}
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public int getBufferPosition() {
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return this.bufOff;
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}
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public byte[] doFinal() throws InvalidCipherTextException {
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byte[] processBlock = this.cipher.processBlock(this.buf, 0, this.bufOff);
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reset();
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return processBlock;
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}
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public BufferedAsymmetricBlockCipher(AsymmetricBlockCipher asymmetricBlockCipher) {
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this.cipher = asymmetricBlockCipher;
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}
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}
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