Textile waste water treatment for industrial reuse remains as a complicated problem due to several reasons. Among them are: 1) Higher levels of Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD) and Total Dissolved Solids (TDS) content of the waste water; 2) Non-biodegradable nature of organic dye stuffs present in the effluent. Thus, any adopted treatment system, especially with resp...

This bulletin describes a recently devised attack on PKCS #1 v1.5, the RSA Encryption Standard [3]. This attack affects only the digital envelope portion of PKCS #1. In the following sections we describe the digital enveloping method in PKCS #1 and the new attack. We also describe a variety of countermeasures that successfully thwart the attack, in particular, we describe the countermeasure to ...