src/emv_dda.c File Reference

#include <ccid.h>
#include <list.h>
#include <emv.h>
#include <ber.h>
#include "emv-internal.h"

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Data Structures
struct	dda_req
Functions
static int	get_required_data (struct _emv *e, struct dda_req *req)
static RSA *	get_ca_key (unsigned int idx, emv_mod_cb_t mod, emv_exp_cb_t exp, size_t *key_len, void *priv)
static int	recover (uint8_t *ptr, size_t len, RSA *key)
static int	check_pk_cert (struct _emv *e, struct dda_req *req)
static RSA *	make_issuer_pk (struct _emv *e, struct dda_req *req)
static RSA *	get_issuer_pk (struct _emv *e, struct dda_req *req, RSA *ca_key, size_t key_len)
static RSA *	make_icc_pk (struct _emv *e, struct dda_req *req)
static int	check_icc_cert (struct _emv *e, struct dda_req *req)
static RSA *	get_icc_pk (struct _emv *e, struct dda_req *req, RSA *iss_key, size_t key_len)
static int	dol_cb (uint16_t tag, uint8_t *ptr, size_t len, void *priv)
static int	verify_dynamic_sig (emv_t e, size_t icc_pk_len, const uint8_t *ddol, size_t ddol_len)
int	emv_authenticate_dynamic (emv_t e, emv_mod_cb_t mod, emv_exp_cb_t exp, void *priv)
int	emv_dda_ok (emv_t e)

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Function Documentation

static int check_icc_cert	(	struct _emv *	e,
		struct dda_req *	req
	)			[static]

Definition at line 321 of file emv_dda.c.

References _emsa_pss_decode(), _emv_error(), _emv_sys_error(), _emv_data::d_data, _emv_data::d_len, _emv_db::db_numsda, _emv_db::db_sda, _emv::e_aip, _emv::e_db, _emv::e_sda_ok, EMV_ERR_CERTIFICATE, dda_req::icc_cert, dda_req::icc_cert_len, dda_req::icc_exp, dda_req::icc_exp_len, dda_req::icc_r, dda_req::icc_r_len, and dda_req::pan.

Referenced by get_icc_pk().

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static int check_pk_cert	(	struct _emv *	e,
		struct dda_req *	req
	)			[static]

Definition at line 172 of file emv_dda.c.

References _emsa_pss_decode(), _emv_error(), _emv_sys_error(), EMV_ERR_CERTIFICATE, dda_req::pk_cert, dda_req::pk_cert_len, dda_req::pk_exp, dda_req::pk_exp_len, dda_req::pk_r, and dda_req::pk_r_len.

Referenced by get_issuer_pk().

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static int dol_cb	(	uint16_t	tag,
		uint8_t *	ptr,
		size_t	len,
		void *	priv
	)			[static]

Definition at line 412 of file emv_dda.c.

References EMV_TAG_UNPREDICTABLE_NUMBER.

int emv_authenticate_dynamic	(	emv_t	e,
		emv_mod_cb_t	mod,
		emv_exp_cb_t	exp,
		void *	priv
	)

Definition at line 497 of file emv_dda.c.

References _emv_error(), dda_req::ca_pk_idx, dda_req::ddol, dda_req::ddol_len, _emv::e_aip, _emv::e_ca_pk, _emv::e_dda_ok, _emv::e_icc_pk, _emv::e_iss_pk, EMV_AIP_DDA, EMV_ERR_DATA_ELEMENT_NOT_FOUND, EMV_ERR_FUNC_NOT_SUPPORTED, EMV_ERR_KEY_NOT_FOUND, get_ca_key(), get_icc_pk(), get_issuer_pk(), get_required_data(), dda_req::icc_mod_len, and verify_dynamic_sig().

Referenced by cp_dda(), and do_emv_stuff().

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int emv_dda_ok

(

emv_t

e

)

Definition at line 540 of file emv_dda.c.

References _emv::e_dda_ok.

static RSA* get_ca_key	(	unsigned int	idx,
		emv_mod_cb_t	mod,
		emv_exp_cb_t	exp,
		size_t *	key_len,
		void *	priv
	)			[static]

Definition at line 114 of file emv_dda.c.

References exp_len, and mod_len.

Referenced by emv_authenticate_dynamic().

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static RSA* get_icc_pk	(	struct _emv *	e,
		struct dda_req *	req,
		RSA *	iss_key,
		size_t	key_len
	)			[static]

Definition at line 390 of file emv_dda.c.

References _emv_error(), check_icc_cert(), EMV_ERR_KEY_SIZE_MISMATCH, EMV_ERR_RSA_RECOVERY, dda_req::icc_cert, dda_req::icc_cert_len, make_icc_pk(), and recover().

Referenced by emv_authenticate_dynamic().

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static RSA* get_issuer_pk	(	struct _emv *	e,
		struct dda_req *	req,
		RSA *	ca_key,
		size_t	key_len
	)			[static]

Definition at line 258 of file emv_dda.c.

References _emv_error(), check_pk_cert(), EMV_ERR_KEY_SIZE_MISMATCH, EMV_ERR_RSA_RECOVERY, make_issuer_pk(), dda_req::pk_cert, dda_req::pk_cert_len, and recover().

Referenced by emv_authenticate_dynamic().

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static int get_required_data	(	struct _emv *	e,
		struct dda_req *	req
	)			[static]

Definition at line 35 of file emv_dda.c.

References _emv_retrieve_data(), dda_req::ca_pk_idx, _emv_data::d_data, _emv_data::d_len, dda_req::ddol, dda_req::ddol_len, emv_data_int(), EMV_TAG_CA_PK_INDEX, EMV_TAG_DDOL, EMV_TAG_ICC_PK_CERT, EMV_TAG_ICC_PK_EXP, EMV_TAG_ICC_PK_R, EMV_TAG_ISS_PK_CERT, EMV_TAG_ISS_PK_EXP, EMV_TAG_ISS_PK_R, EMV_TAG_PAN, dda_req::icc_cert, dda_req::icc_cert_len, dda_req::icc_exp, dda_req::icc_exp_len, dda_req::icc_r, dda_req::icc_r_len, dda_req::pan, dda_req::pk_cert, dda_req::pk_cert_len, dda_req::pk_exp, dda_req::pk_exp_len, dda_req::pk_r, and dda_req::pk_r_len.

Referenced by emv_authenticate_dynamic().

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static RSA* make_icc_pk	(	struct _emv *	e,
		struct dda_req *	req
	)			[static]

Definition at line 281 of file emv_dda.c.

References _emv_sys_error(), dda_req::icc_cert, dda_req::icc_cert_len, dda_req::icc_exp, dda_req::icc_exp_len, dda_req::icc_mod_len, dda_req::icc_r, and dda_req::icc_r_len.

Referenced by get_icc_pk().

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static RSA* make_issuer_pk	(	struct _emv *	e,
		struct dda_req *	req
	)			[static]

Definition at line 219 of file emv_dda.c.

References _emv_sys_error(), dda_req::pk_cert, dda_req::pk_cert_len, dda_req::pk_exp, dda_req::pk_exp_len, dda_req::pk_r, and dda_req::pk_r_len.

Referenced by get_issuer_pk().

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static int recover	(	uint8_t *	ptr,
		size_t	len,
		RSA *	key
	)			[static]

Definition at line 151 of file emv_dda.c.

Referenced by get_icc_pk(), get_issuer_pk(), and verify_dynamic_sig().

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static int verify_dynamic_sig	(	emv_t	e,
		size_t	icc_pk_len,
		const uint8_t *	ddol,
		size_t	ddol_len
	)			[static]

Definition at line 432 of file emv_dda.c.

References _emv_construct_dol(), _emv_error(), _emv_int_authenticate(), _emv::e_icc_pk, _emv::e_xfr, EMV_ERR_BER_DECODE, EMV_ERR_CERTIFICATE, recover(), and xfr_rx_data().

Referenced by emv_authenticate_dynamic().

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