ISO/IEC 14443-4
<\/script>\n';
},
get iframeSnippet() {
const domain = '{ SITE_DOMAIN }';
const type = '{ embed_type }';
const slug = '{ embed_slug }';
return '';
},
get activeSnippet() {
return this.method === 'script' ? this.scriptSnippet : this.iframeSnippet;
},
copySnippet() {
navigator.clipboard.writeText(this.activeSnippet).then(() => {
this.copied = true;
setTimeout(() => { this.copied = false; }, 2000);
});
}
}"
@keydown.escape.window="open = false"
@click.outside="open = false">
ISO/IEC 14443-4 defines the transmission protocol layer for proximity contactless cards, establishing the half-duplex block exchange mechanism used by NFC Forum Type 4 tags. This protocol enables APDU (Application Protocol Data Unit) command exchange as defined in ISO 7816-4, supporting multi-application file systems, access control lists, and cryptographic operations. It is the foundation for MIFARE DESFire, NTAG 424, and all contactless payment card communication.
ISO/IEC
|
14443-4
|
Published 2001
|
Rev. 2018
Scope
Transmission protocol — defines the half-duplex block transmission protocol for contactless cards, enabling APDU command exchange.