Make SLE 5542 Smart Cards Read Only After Binary Write Using APDU : <p>Excited to ask my first question over here... so here goes.. </p>

<p>I am Currently working with the Composite Smart Cards (one with both the NFC MIFARE 1k And Chip Encode ) SLE 5542,</p>

<p>So far i have  managed to perform the following task with the MIFARE</p>

<ol>
<li><p>Read write of values in Blocks of the sector </p></li>
<li><p>changing the access bits and  authentication key A and B for the sector trails so as manage the access control of the sector of the block in which i have written so that i can make my values read only.</p></li>
</ol>

<p>As for the Chip Encode i have managed to .</p>

<p>Performing read write in the Contact Chip using READ BINARY AND WRITE BINARY APDU commands.</p>

<p>But Now i am stuck in the process of making the values written in the chip to be readonly , </p>

<p>I found a <a href="http://www.acs.com.hk/download-manual/6009/TDS_SLE5542.pdf" rel="nofollow">document</a> over the internet in which under the Circuit Description it is telling about the need of PSC And Protection Memory for the read protection of the Data Memory</p>

<p>But can not find the exact APDU Commands and the right way of the read write protection of the data memory.</p>

<p>P.S Let me know if you need any further clarifications</p>
