taylorvorti.blogg.se - Serial cloner portable

#SERIAL CLONER PORTABLE SERIAL#
#SERIAL CLONER PORTABLE PORTABLE#
#SERIAL CLONER PORTABLE FOR ANDROID#
#SERIAL CLONER PORTABLE ISO#
#SERIAL CLONER PORTABLE FREE#

It is designed to handle all the data in a single interface which makes it easy to use when manipulating sequences.

You can use this tool for analyzing the datasets, selecting certain fragments and calculate Tm values with just a few clicks. It deals with the analysis and visualization of sequences in the field of molecular biology.

#SERIAL CLONER PORTABLE SERIAL#

Serial Cloner is a powerful tool for the laboratory staff and the students who work with nucleotide and peptide sequences. When a client reads the data, they should contain required variables, eg.

Configure the chip to inject UID, counter, signature to the URL stored on the chip.

Store UID, public-key, last-counter on the server.

Read the tag UID (serial number) and the actual counter value (should be 0 on an unused tag).

So the solution will be like (I am waiting for delivery of NFC tags right now, so I don't know for sure yet):

The chip can dynamicaly inject the data above into a URL that is stored in the readable memory.

The chip can generate an AES-128 signature of string UID (chip serial number) + counter using the private key in the inaccessible part of the memory.

It increments everytime the data are read through NFC.

The chip has a memory, which is not readable through NFC.

There might be multiple chips that offers this, but probably the most available chip is NTAG 424 DNA TT. I was looking for a solution that enables strong authentication using NFC data. Although this might be possible it is definitely not the best way to achieve the target. The answer a was looking for is not a chip which runs a custom code. While a power supply of its own would solve the issue in principle, it is not what ISO-14443 was designed for. This severely limits the distance between card and phone and may even require direct touch. If not involved in the authorized action, provision of a random number is not sufficient reason.Īsymmetric key operations have a comparatively high power consumption, and this power has to be supplied via the electric field. I don't see, where the server comes into play.

#SERIAL CLONER PORTABLE PORTABLE#

(To have a portable card somehow fixed to a wall, just to get the location so you know where somebody is, but not who? While I don't consider cloning to be an issue, you somehow must ensure destruction in case of a theft attempt, which may collide with the distance topic below.) Your approach looks unusual, which might become a problem.

Real smart cards can't be cloned, since you are not able to dump them especially keys can't be read.

After triggering the "card enters field" event, then the app receives a handle, via which further communication can take place.

#SERIAL CLONER PORTABLE FOR ANDROID#

Unfortunately this is strongly dependent on the OS of the smart phone, for Android the relevant class to use is IsoDep, which gives you the APDU interface. Any smart phone sporting a NFC chip can address such a card in principle.Note, that a card with native OS may be a viable alternative to a JavaCard, since the functionality to sign a random number is pretty standard.

#SERIAL CLONER PORTABLE ISO#

Any ISO 14443 (one of the NFC flavours) compliant smart card with crypto functionality should be usable.

NFC is a very broad term, just finding that on both sides does not ensure interoperability.

#SERIAL CLONER PORTABLE FREE#

I suspect that Mifare DESfire might be able to meet my requirements, but I am not sure.įeel free to respond with an advertisement, because relevant advertisement is exactly what I look for :) I have tried about 10 producers without luck.Ĭan a commonly available chip meet my requirements? I mean a chip from the Mifare familly. When I try to explain my requirements to a NFC tags producer he looks like he has never heard of NFC JavaCards. But do these NFC JavaCards actually exist? I wasn't able to find a company which would be able to produce such NFC tags for me. This should be achievable using NFC JavaCard. When the user wants to perform the action, he will ask server for the challenge, then he lets the chip to sign it, and then he sends the signed challenge back to the server which will verify the signature using known public key. The NFC chip must contain an app, that can receive some data (cryptographic challenge) and signs them using secure built-in private key (which must be unreadable through NFC interface). It also means that the NFC chip must not contain only static data. It means that the NFC tag must be impossible to clone without physical damage to the plastics around the NFC chip. Easy but I need it to be reasonably hackerproof. The user have to put his smartphone by a NFC tag in order to be authorized to perform the action. I need to verify that a user of my app is on a specific place in order to be authirized to perform an action.

I am complete noob in this area and many of my thoughts are probably misleading.