Inspec keywords: telecommunication security; authorisation; magnetic fields; transaction processing; near-field communication; loop antennas; electronic money; telecommunication standards

Other keywords: eavesdropping attack; ISO 14443 transmission; near-field contactless payment eavesdropping; low-cost electronics; shopping trolley; inductive loop antenna; official maximum operating distance; quantitative analysis; bit error rates; concealable antenna; near-field communication inductive loop antenna; data frame recovery; frame error rates; ISO 14443 standard; contactless payment transaction; magnetic field strength

Subjects: Data security; Financial computing; Single antennas; Other radio links