Our Favorite Access Control Credentials report covers this in depth.
"A proximity reader whoch suppports 31 bits or equivalent format and that is readily avaialbale in and not proprietary to any manufacturer or vendor"
Is it means 125Khz card and reader can support multiple technologies
I just wants to understand this statement about the reader which I found in one of the ACS document
" A proximity reader which supports 31 bits or equivalent format and readily available and not prorietary to any manufacturer or vendor"
13.56 MHz (Mifare) indeed offers higher security than "plain-vanilla" 125 KHz stuff (which is very old techology that has been around since the 1990s); but for really REALLY HIGH security requirements, NOT even 13.56 Mifare is enough.
You are not saying how secure the new hospital facility demands in their request for proposals, but I guess that if it is a military/federal site with strict clearances requirements, you may consider DESfire for really serious mutual authentication (meaning that it has AES 128, DES/Triple-DES Data Encryption with Unique 56-Bit Serial Numbers).
Thanks a lot for your replies.
As mentioned in Brian's reply ,I wish to know the classification of cards based on the number of bits used for the communication .
Some body help me