Examples of org.bouncycastle.crypto.DataLengthException

org.bouncycastle.crypto.DataLengthException
this exception is thrown if a buffer that is meant to have output copied into it turns out to be too short, or if we've been given insufficient input. In general this exception will get thrown rather than an ArrayOutOfBounds exception.

        int     inOff,
        int     inLen)
    {
        if (inLen > (getInputBlockSize() + 1))
        {
            throw new DataLengthException("input too large for RSA cipher.\n");
        }
        else if (inLen == (getInputBlockSize() + 1) && (in[inOff] & 0x80) != 0)
        {
            throw new DataLengthException("input too large for RSA cipher.\n");
        }


        byte[]  block;


        if (inOff != 0 || inLen != in.length)

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        int outOff)
        throws DataLengthException, IllegalStateException
    {
        if ((inOff + blockSize) > in.length)
        {
            throw new DataLengthException("input buffer too short");
        }


        if ((outOff + blockSize) > out.length)
        {
            throw new DataLengthException("output buffer too short");
        }
        
        if (count > blockSize)
        {
            FR[blockSize - 2] = out[outOff] = encryptByte(in[inOff], blockSize - 2);

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        int outOff)
        throws DataLengthException, IllegalStateException
    {
        if ((inOff + blockSize) > in.length)
        {
            throw new DataLengthException("input buffer too short");
        }


        if ((outOff + blockSize) > out.length)
        {
            throw new DataLengthException("output buffer too short");
        }
        
        if (count > blockSize)
        {
            // copy in buffer so that this mode works if in and out are the same

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        if (length > 0)
        {
            if ((outOff + length) > out.length)
            {
                throw new DataLengthException("output buffer too short");
            }
        }


    int resultLen = 0;
        int gapLen = buf.length - bufOff;

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        int     outOff)
        throws DataLengthException, IllegalStateException, InvalidCipherTextException
  {
        if (bufOff + outOff > out.length)
        {
            throw new DataLengthException("output buffer to small in doFinal");
        }


        int     blockSize = cipher.getBlockSize();
        int     len = bufOff - blockSize;
        byte[]  block = new byte[blockSize];

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        int         outOff)
        throws DataLengthException, IllegalStateException
    {
        if ((inOff + blockSize) > in.length)
        {
            throw new DataLengthException("input buffer too short");
        }


        if ((outOff + blockSize) > out.length)
        {
            throw new DataLengthException("output buffer too short");
        }


        cipher.processBlock(cfbV, 0, cfbOutV, 0);


        //

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        int         outOff)
        throws DataLengthException, IllegalStateException
    {
        if ((inOff + blockSize) > in.length)
        {
            throw new DataLengthException("input buffer too short");
        }


        if ((outOff + blockSize) > out.length)
        {
            throw new DataLengthException("output buffer too short");
        }


        cipher.processBlock(cfbV, 0, cfbOutV, 0);


        //

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        if (length > 0)
        {
            if ((outOff + length) > out.length)
            {
                throw new DataLengthException("output buffer too short");
            }
        }


    int resultLen = 0;
        int gapLen = buf.length - bufOff;

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        {
            if (bufOff == blockSize)
            {
                if ((outOff + 2 * blockSize) > out.length)
                {
                    throw new DataLengthException("output buffer too short");
                }


                resultLen = cipher.processBlock(buf, 0, out, outOff);
                bufOff = 0;
            }


            //
            // add PKCS7 padding
            //
            byte code = (byte)(blockSize - bufOff);


            while (bufOff < blockSize)
            {
                buf[bufOff] = code;
                bufOff++;
            }


            resultLen += cipher.processBlock(buf, 0, out, outOff + resultLen);
        }
        else
        {
            if (bufOff == blockSize)
            {
                resultLen = cipher.processBlock(buf, 0, buf, 0);
                bufOff = 0;
            }
            else
            {
                throw new DataLengthException("last block incomplete in decryption");
            }


            //
            // remove PKCS7 padding
            //

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        int outOff)
        throws DataLengthException, IllegalStateException
    {
        if ((inOff + blockSize) > in.length)
        {
            throw new DataLengthException("input buffer too short");
        }


        if ((outOff + blockSize) > out.length)
        {
            throw new DataLengthException("output buffer too short");
        }
        
        if (count == 0)
        {
            cipher.processBlock(FR, 0, FRE, 0);

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