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PAGOS ‘CONTACTLESS’
@amandaguglieri
Clasificación de red wireless según alcance
Source: https://www.purevpn.com/blog/types-of-network/ Source: https://www.nxp.com/design/training/nfc-essentials:TIP-NFC-ESSENTIALS-WEBINAR
Source: https://www.nxp.com/design/training/nfc-essentials:TIP-NFC-ESSENTIALS-WEBINAR
NFC Principios físicos (dibujo)
Etiquetas, tarjetas, fabricantes
NXP
Mifare
ST Microelectronics SA France
Triodos - Curve - Revolut
Sony
Felicia
Infineon Technologies
SLE78CLFX408AP
https://www.mifare.net/wp-content/uploads/2020/10/NXP_SMR-z-card_8-October-2020_MIFARE_WEB.pdf
Encriptado CRYPTO1
DES (Data
Encryption
Standard)
2K3DES
3K3DES
AES
(Advanced
Encryption
Standard)
LRP
(Leakage
Resilient
Primitive)
En mi cabeza había…
La realidad de colores
Transacción EMV
Negociación - handshake
1
SELECT PAYMENT ENVIRONMENT
Id APPs
2
SELECT APP ID
OK APP Selected + PDOL
3
GPO (Get Processing Options)
4 records locations (PDOL)
4
REQUEST RECORD
Return record
5
ASK TO GENERATE CRYPTOGRAM
6
Application
Datagram
Generator Send cryptogram
Vulnerabilidades y ataques
Eavesdropping + Sniffing
Data modification
Relay attacks
SERVER
Toolkit
• Dos androids: con NFC support + Android 11 + NFCGate + Xposed: Xpoded Module repository
• + HCE: Relay tag mode, replay tag mode, clone mode.
• Máquina virtual kali con NFCGate Server.
• Una tarjeta emv
• Un TPV
Por qué no
https://www.youtube.com/watch?v=oW1BNsYTQTk
Sí funciona cuando puedes configurarlo bien
https://www.youtube.com/watch?v=qMQc_snB_yE
#Quémellevodeestebootcamp + #Bonustrack

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