brp_Desfire_ChangeKey()

brp_errcode brp_Desfire_ChangeKey	(	brp_protocol	protocol,
		bool	IsKeySet,
		bool	IsMasterKey,
		bool	IsChangeKey,
		unsigned	KeyNr,
		brp_Desfire_ChangeKey_NewKeyDivMode	NewKeyDivMode,
		bool	NewKeyHasDivData,
		bool	NewKeyHasExtIdx,
		unsigned	NewKeyIdx,
		brp_Desfire_ChangeKey_CurKeyDivMode	CurKeyDivMode,
		bool	CurKeyHasDivData,
		bool	CurKeyHasExtIdx,
		unsigned	CurKeyIdx,
		brp_buf	NewKeyDivData,
		size_t	NewKeyDivData_len,
		brp_buf	CurKeyDivData,
		size_t	CurKeyDivData_len,
		unsigned	NewKeyExtIdx,
		unsigned	CurKeyExtIdx,
		unsigned	KeySet
	)

Modifies a DESFire card key defined in the SAM or crypto memory.

Parameters

[in]	protocol	used to execute the command
[in]	IsKeySet	Only needed for Desfire EV2 with multiple Keysets. If true ,the reader executes the Desfire "ChangeKeyEV2" command instead of the Desfire "ChangeKey" command.
[in]	IsMasterKey	Has to be set if the key to change is the PICC Master Key.
[in]	IsChangeKey	Has to be set if the key used to authenticate the card is the key that needs to be changed (as specified in KeyNo). In this case, the parameter CurKeyIdx has to be omitted.
[in]	KeyNr	Number of card key (0-13) to change.
[in]	NewKeyDivMode	Specifies diversification algorithm.
[in]	NewKeyHasDivData	Activates key diversification according to NXP AN10922.
[in]	NewKeyHasExtIdx	Activates key memory expansion.
[in]	NewKeyIdx	Index of key in the reader's SAM or crypto memory (configuration range 0x00-0xBF).
[in]	CurKeyDivMode	Specifies diversification algorithm.
[in]	CurKeyHasDivData	Activates key diversification according to NXP AN10922.
[in]	CurKeyHasExtIdx	Activates key memory expansion.
[in]	CurKeyIdx	Index of key in the reader's SAM or crypto memory (configuration range 0x00-0xBF).
[in]	NewKeyDivData	Diversification data of the new key.
[in]	NewKeyDivData_len
[in]	CurKeyDivData	Diversification data of the current key.
[in]	CurKeyDivData_len
[in]	NewKeyExtIdx	Crypto Memory Index (SAM or CryptoMemory) of new key * SAM: Key version (0..0xFF) * Crypto Memory: Page (0..15)
[in]	CurKeyExtIdx	Crypto Memory Index (SAM or CryptoMemory) of current key * SAM: Key version (0..0xFF) * Crypto Memory: Page (0..15)
[in]	KeySet	specifies a KeySet (needed for multiple keysets - EV2 extension).