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iceman1001 2021-12-31 10:55:16 +01:00
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# EMV commands
<a id="top"></a>
### EMV Implemented parts:
Notes on EMV works on Proxmark3
# Table of Contents
- [EMV commands](#emv-commands)
- [Table of Contents](#table-of-contents)
- [EMV Implemented parts](#emv-implemented-parts)
- [Working parts of qVSDC](#working-parts-of-qvsdc)
- [`not implemented` parts of EMV](#not-implemented-parts-of-emv)
- [Commands](#commands)
- [VISA(r) transactions](#visar-transactions)
- [Mastercard(r) transactions](#mastercardr-transactions)
- [all commands](#all-commands)
- [Useful links](#useful-links)
- [EMV kernels](#emv-kernels)
### EMV Implemented parts
^[Top](#top)
- Get ATR|ATS
- Get AID by PSE (`emv pse`)
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- Check ARQC cryptogram (`not implemented`)
- Issuer scripts processing (`not implemented`)
### Working parts of qVSDC:
### Working parts of qVSDC
^[Top](#top)
- Get ATR|ATS
@ -58,7 +76,7 @@ command `emv exec` executes EMV transaction. it have parameters:
```
It works for VISA(r) and Mastercard(r) transactions. It may work with other EMV payment system's card (and it works in general cases that is described in EMV).
### VISA(r) transactions:
### VISA(r) transactions
^[Top](#top)
MSD - Magnetic Stripe mode
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Different cards have different modes on/of and different behavior in them. So needs to check card in all this modes.
MSD - compatibility mode. Now it work always. But it less secure and in near future it will be slowly) disabled.
### all commands:
### all commands
^[Top](#top)
```
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`emv test` - test all crypto code from emv part of proxmark.
### Useful links:
### Useful links
^[Top](#top)
EMV specifications

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# External flash
<a id="Top"></a>
External 256kbytes flash is a unique feature of the RDV4 edition.
# Table of Contents
- [External flash](#external-flash)
- [Table of Contents](#table-of-contents)
- [Addresses](#addresses)
- [Layout](#layout)
- [Page3 Layout](#page3-layout)
- [RSA signature](#rsa-signature)
- [backup first!](#backup-first)
## Addresses
^[Top](#top)
Flash memory is
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```
## Layout
^[Top](#top)
Page 0:
* available for user data
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* Updating keys dictionaries doesn't require to erase page 3.
## Page3 Layout
^[Top](#top)
Page3 is used as follows by the Proxmark3 RDV4 firmware:
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* offset should have been 0x3FF80 but historically it's one byte off and therefore the last byte of the flash is unused
## RSA signature
^[Top](#top)
To ensure your Proxmark3 RDV4 is not a counterfeit product, its external flash contains a RSA signature of the flash unique ID.
You can verify it with: `mem info`
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```
# backup first!
^[Top](#top)
To make a backup of the signature to file:
`mem dump p f flash_signature_dump o 262015 l 128`