4 ms·
Contactless uses a cryptographic operation to secure the transaction, both reader and chip are active participants. Compare with magstripes which are passively
by devman0 4y ago
Contactless uses a cryptographic operation to secure the transaction, both reader and chip are active participants. Compare with magstripes which are passively read and thus trivially subject to replay attacks.
- gcanyon 4y agoThanks, I figured this was likely the case, but I didn't know the details.