github.com/hsanjuan/go-nfctype4

Go-nfctype4

Package go-nfctype4 implements the NFC Forum Type 4 Tag Operation Specification Version 2.0.

The implementation acts as an NFC Forum Device (an application that can read and write NFC Forum Tags) via a provided Device type which can perform Read, Update and Format operations.

The module and submodules contain all the pieces to implement software-based NFC Type 4 Tags as well. For more information about this check the documentation. You can also check out this snippet showing how this is done using the static tag implementation provided.

nfctype4-tool

nfctype4-tool is a command-line tool to read and write NFC Type 4 tags. It can be installed with:

go get -u github.com/hsanjuan/go-nfctype4/nfctype4-tool

You can then run nfctype4-tool -h to get going.

Note: to turn a Mifare Desfire EV2 (4k) card into an NFC Type 4 Tag check: https://gitlab.com/snippets/18476 .

Packages

go-nfctype4 and its subpackages offer access to the implementation of all the entities described in the NFC Forum Type 4 Tag specification. These are the links to the reference documentation of the most relevant packages:

• https://godoc.org/github.com/hsanjuan/go-nfctype4 : Provides the Device, CommandDriver and Commander. They are the main entry point to interact with NFC tags.
• https://godoc.org/github.com/hsanjuan/go-nfctype4/apdu : Provides support for creating and serializing Command APDUs and Response APDUs.
• https://godoc.org/github.com/hsanjuan/go-nfctype4/capabilitycontainer : Provides support for creating and serializing Capability Containers and TLV Blocks.
• https://godoc.org/github.com/hsanjuan/go-nfctype4/drivers/libnfc : Provides libnfc support to read and write to hardware tags with an NFC reader.
• https://godoc.org/github.com/hsanjuan/go-nfctype4/drivers/swtag : Provides a binary interface for a software Tag.
• https://godoc.org/github.com/hsanjuan/go-nfctype4/tags : Provides the Tag interface, on which software tags that use this library should be based-on.
• https://godoc.org/github.com/hsanjuan/go-nfctype4/tags/static : Provides the implementation of a software-based static NFC Type 4 tag.