Examples of org.bouncycastle.crypto.BlockCipher.processBlock()

Class org.bouncycastle.crypto.BlockCipher

Examples of org.bouncycastle.crypto.BlockCipher.processBlock()

org.bouncycastle.crypto.BlockCipher.processBlock()
Process one block of input from the array in and write it to the out array. @param in the array containing the input data. @param inOff offset into the in array the data starts at. @param out the array the output data will be copied into. @param outOff the offset into the out array the output will start at. @exception DataLengthException if there isn't enough data in in, orspace in out. @exception IllegalStateException if the cipher isn't initialised. @return the number of bytes processed and produced.


            if (cipher instanceof CBCBlockCipher)
            {
                BlockCipher c = ((CBCBlockCipher)cipher).getUnderlyingCipher();


                c.processBlock(buf, blockSize, out, outOff);
            }
            else
            {
                cipher.processBlock(buf, blockSize, out, outOff);
            }

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            if (cipher instanceof CBCBlockCipher)
            {
                BlockCipher c = ((CBCBlockCipher)cipher).getUnderlyingCipher();


                c.processBlock(buf, 0, block, 0);
            }
            else
            {
                cipher.processBlock(buf, 0, block, 0);
            }

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            out = new byte[inLen + macSize];
            
            calculateMac(in, inOff, inLen, macBlock);
            
            ctrCipher.processBlock(macBlock, 0, macBlock, 0);   // S0
            
            while (index < inLen - blockSize)                   // S1...
            {
                ctrCipher.processBlock(in, index, out, outOff);
                outOff += blockSize;

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            ctrCipher.processBlock(macBlock, 0, macBlock, 0);   // S0
            
            while (index < inLen - blockSize)                   // S1...
            {
                ctrCipher.processBlock(in, index, out, outOff);
                outOff += blockSize;
                index += blockSize;
            }
            
            byte[] block = new byte[blockSize];

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            byte[] block = new byte[blockSize];
            
            System.arraycopy(in, index, block, 0, inLen - index);
            
            ctrCipher.processBlock(block, 0, block, 0);
            
            System.arraycopy(block, 0, out, outOff, inLen - index);
            
            outOff += inLen - index;

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            out = new byte[inLen - macSize];
            
            System.arraycopy(in, inOff + inLen - macSize, macBlock, 0, macSize);
            
            ctrCipher.processBlock(macBlock, 0, macBlock, 0);
            
            for (int i = macSize; i != macBlock.length; i++)
            {
                macBlock[i] = 0;
            }

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                macBlock[i] = 0;
            }
            
            while (outOff < out.length - blockSize)
            {
                ctrCipher.processBlock(in, index, out, outOff);
                outOff += blockSize;
                index += blockSize;
            }
            
            byte[] block = new byte[blockSize];

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            byte[] block = new byte[blockSize];
            
            System.arraycopy(in, index, block, 0, out.length - outOff);
            
            ctrCipher.processBlock(block, 0, block, 0);
            
            System.arraycopy(block, 0, out, outOff, out.length - outOff);
            
            byte[] calculatedMacBlock = new byte[blockSize];

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            if (cipher instanceof CBCBlockCipher)
            {
                BlockCipher c = ((CBCBlockCipher)cipher).getUnderlyingCipher();


                c.processBlock(buf, blockSize, out, outOff);
            }
            else
            {
                cipher.processBlock(buf, blockSize, out, outOff);
            }

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            if (cipher instanceof CBCBlockCipher)
            {
                BlockCipher c = ((CBCBlockCipher)cipher).getUnderlyingCipher();


                c.processBlock(buf, 0, block, 0);
            }
            else
            {
                cipher.processBlock(buf, 0, block, 0);
            }

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