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MF2DL1000DA4/02 Datasheet(PDF) 55 Page - NXP Semiconductors |
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MF2DL1000DA4/02 Datasheet(HTML) 55 Page - NXP Semiconductors |
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55 / 132 page  NXP Semiconductors MF2DL(H)x0 MIFARE DESFire Light contactless application IC MF2DL_H_x0 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2019. All rights reserved. Product data sheet Rev. 3.3 — 5 April 2019 COMPANY PUBLIC 430733 55 / 132 11.4.2 AuthenticateEV2NonFirst The AuthenticateEV2NonFirst command can be used only if there is a valid authentication with AuthenticateEV2First. It continues the transaction with the transaction started by previous AuthenticateEV2First command. It starts a new session. The scheme of transaction and sessions within the transaction have been designed to protect any possible sophisticated replay attacks aaa-032197 PICC to PCD PCD to PICC CLA 90 Response data E(Kx, RndA') CMD AF P1 00 P2 00 Lc 20 1 2nd Part 1 1 1 1 Le 00 1 32 32 Data E(Kx, RndA || RndB') SW1 status 1 SW2 1 PICC to PCD PCD to PICC CLA 90 Response data E(Kx, RndB) CMD 77 P1 00 P2 00 Lc 01 1 1st Part 1 1 1 1 1 Le 00 1 Data KeyNo 16 SW1 status 1 SW2 1 Figure 14. AuthenticateEV2NonFirst command protocol Table 28. Command parameters description - AuthenticateEV2NonFirst - Part1 Name Length Value Description Command Header Parameters CMD 1 77h Command code. 1 Targeted authentication key Bit 7-6 0 RFU KeyNo Bit 5-0 0h to 04h Key number Command Data Parameters - - - No data parameters Table 29. Response data parameters description - AuthenticateEV2NonFirst - Part1 Name Length Value Description E(Kx, RndB) 16 Full range Encrypted PICC challenge The following data, encrypted with the key Kx referenced by KeyNo: - RndB (16 byte): Random number from the PICC. SW1SW2 2 91AFh 91XXh successful execution Refer to Table 30 |
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