35 void osdp_compute_scbk(struct osdp_pd *pd, uint8_t *master_key, uint8_t *scbk)  in osdp_compute_scbk()  argument
39 	memcpy(scbk, pd->sc.pd_client_uid, 8);  in osdp_compute_scbk()
46 void osdp_compute_session_keys(struct osdp_pd *pd)  in osdp_compute_session_keys()  argument
49 	struct osdp *ctx = pd_to_osdp(pd);  in osdp_compute_session_keys()
52 	if (ISSET_FLAG(pd, PD_FLAG_SC_USE_SCBKD)) {  in osdp_compute_session_keys()
55 		if (is_cp_mode(pd) && !ISSET_FLAG(pd, PD_FLAG_HAS_SCBK)) {  in osdp_compute_session_keys()
56 			osdp_compute_scbk(pd, ctx->sc_master_key, scbk);  in osdp_compute_session_keys()
58 			memcpy(scbk, pd->sc.scbk, 16);  in osdp_compute_session_keys()
62 	memset(pd->sc.s_enc, 0, 16);  in osdp_compute_session_keys()
63 	memset(pd->sc.s_mac1, 0, 16);  in osdp_compute_session_keys()
64 	memset(pd->sc.s_mac2, 0, 16);  in osdp_compute_session_keys()
66 	pd->sc.s_enc[0] = 0x01;  in osdp_compute_session_keys()
67 	pd->sc.s_enc[1] = 0x82;  in osdp_compute_session_keys()
68 	pd->sc.s_mac1[0] = 0x01;  in osdp_compute_session_keys()
69 	pd->sc.s_mac1[1] = 0x01;  in osdp_compute_session_keys()
70 	pd->sc.s_mac2[0] = 0x01;  in osdp_compute_session_keys()
71 	pd->sc.s_mac2[1] = 0x02;  in osdp_compute_session_keys()
74 		pd->sc.s_enc[i] = pd->sc.cp_random[i - 2];  in osdp_compute_session_keys()
75 		pd->sc.s_mac1[i] = pd->sc.cp_random[i - 2];  in osdp_compute_session_keys()
76 		pd->sc.s_mac2[i] = pd->sc.cp_random[i - 2];  in osdp_compute_session_keys()
79 	osdp_encrypt(scbk, NULL, pd->sc.s_enc, 16);  in osdp_compute_session_keys()
80 	osdp_encrypt(scbk, NULL, pd->sc.s_mac1, 16);  in osdp_compute_session_keys()
81 	osdp_encrypt(scbk, NULL, pd->sc.s_mac2, 16);  in osdp_compute_session_keys()
84 void osdp_compute_cp_cryptogram(struct osdp_pd *pd)  in osdp_compute_cp_cryptogram()  argument
87 	memcpy(pd->sc.cp_cryptogram + 0, pd->sc.pd_random, 8);  in osdp_compute_cp_cryptogram()
88 	memcpy(pd->sc.cp_cryptogram + 8, pd->sc.cp_random, 8);  in osdp_compute_cp_cryptogram()
89 	osdp_encrypt(pd->sc.s_enc, NULL, pd->sc.cp_cryptogram, 16);  in osdp_compute_cp_cryptogram()
110 int osdp_verify_cp_cryptogram(struct osdp_pd *pd)  in osdp_verify_cp_cryptogram()  argument
115 	memcpy(cp_crypto + 0, pd->sc.pd_random, 8);  in osdp_verify_cp_cryptogram()
116 	memcpy(cp_crypto + 8, pd->sc.cp_random, 8);  in osdp_verify_cp_cryptogram()
117 	osdp_encrypt(pd->sc.s_enc, NULL, cp_crypto, 16);  in osdp_verify_cp_cryptogram()
119 	if (osdp_ct_compare(pd->sc.cp_cryptogram, cp_crypto, 16) != 0) {  in osdp_verify_cp_cryptogram()
125 void osdp_compute_pd_cryptogram(struct osdp_pd *pd)  in osdp_compute_pd_cryptogram()  argument
128 	memcpy(pd->sc.pd_cryptogram + 0, pd->sc.cp_random, 8);  in osdp_compute_pd_cryptogram()
129 	memcpy(pd->sc.pd_cryptogram + 8, pd->sc.pd_random, 8);  in osdp_compute_pd_cryptogram()
130 	osdp_encrypt(pd->sc.s_enc, NULL, pd->sc.pd_cryptogram, 16);  in osdp_compute_pd_cryptogram()
133 int osdp_verify_pd_cryptogram(struct osdp_pd *pd)  in osdp_verify_pd_cryptogram()  argument
138 	memcpy(pd_crypto + 0, pd->sc.cp_random, 8);  in osdp_verify_pd_cryptogram()
139 	memcpy(pd_crypto + 8, pd->sc.pd_random, 8);  in osdp_verify_pd_cryptogram()
140 	osdp_encrypt(pd->sc.s_enc, NULL, pd_crypto, 16);  in osdp_verify_pd_cryptogram()
142 	if (osdp_ct_compare(pd->sc.pd_cryptogram, pd_crypto, 16) != 0) {  in osdp_verify_pd_cryptogram()
148 void osdp_compute_rmac_i(struct osdp_pd *pd)  in osdp_compute_rmac_i()  argument
151 	memcpy(pd->sc.r_mac, pd->sc.cp_cryptogram, 16);  in osdp_compute_rmac_i()
152 	osdp_encrypt(pd->sc.s_mac1, NULL, pd->sc.r_mac, 16);  in osdp_compute_rmac_i()
153 	osdp_encrypt(pd->sc.s_mac2, NULL, pd->sc.r_mac, 16);  in osdp_compute_rmac_i()
156 int osdp_decrypt_data(struct osdp_pd *pd, int is_cmd, uint8_t *data, int length)  in osdp_decrypt_data()  argument
165 	memcpy(iv, is_cmd ? pd->sc.r_mac : pd->sc.c_mac, 16);  in osdp_decrypt_data()
170 	osdp_decrypt(pd->sc.s_enc, iv, data, length);  in osdp_decrypt_data()
184 int osdp_encrypt_data(struct osdp_pd *pd, int is_cmd, uint8_t *data, int length)  in osdp_encrypt_data()  argument
194 	memcpy(iv, is_cmd ? pd->sc.r_mac : pd->sc.c_mac, 16);  in osdp_encrypt_data()
199 	osdp_encrypt(pd->sc.s_enc, iv, data, pad_len);  in osdp_encrypt_data()
204 int osdp_compute_mac(struct osdp_pd *pd, int is_cmd,  in osdp_compute_mac()  argument
223 	memcpy(iv, is_cmd ? pd->sc.r_mac : pd->sc.c_mac, 16);  in osdp_compute_mac()
226 		osdp_encrypt(pd->sc.s_mac1, iv, buf, pad_len - 16);  in osdp_compute_mac()
232 	osdp_encrypt(pd->sc.s_mac2, iv, buf + pad_len - 16, 16);  in osdp_compute_mac()
233 	memcpy(is_cmd ? pd->sc.c_mac : pd->sc.r_mac, buf + pad_len - 16, 16);  in osdp_compute_mac()
238 void osdp_sc_setup(struct osdp_pd *pd)  in osdp_sc_setup()  argument
241 	bool preserve_scbk = is_pd_mode(pd) || ISSET_FLAG(pd, PD_FLAG_HAS_SCBK);  in osdp_sc_setup()
244 		memcpy(scbk, pd->sc.scbk, 16);  in osdp_sc_setup()
246 	memset(&pd->sc, 0, sizeof(struct osdp_secure_channel));  in osdp_sc_setup()
248 		memcpy(pd->sc.scbk, scbk, 16);  in osdp_sc_setup()
251 	if (is_pd_mode(pd)) {  in osdp_sc_setup()
252 		pd->sc.pd_client_uid[0] = BYTE_0(pd->id.vendor_code);  in osdp_sc_setup()
253 		pd->sc.pd_client_uid[1] = BYTE_1(pd->id.vendor_code);  in osdp_sc_setup()
254 		pd->sc.pd_client_uid[2] = BYTE_0(pd->id.model);  in osdp_sc_setup()
255 		pd->sc.pd_client_uid[3] = BYTE_1(pd->id.version);  in osdp_sc_setup()
256 		pd->sc.pd_client_uid[4] = BYTE_0(pd->id.serial_number);  in osdp_sc_setup()
257 		pd->sc.pd_client_uid[5] = BYTE_1(pd->id.serial_number);  in osdp_sc_setup()
258 		pd->sc.pd_client_uid[6] = BYTE_2(pd->id.serial_number);  in osdp_sc_setup()
259 		pd->sc.pd_client_uid[7] = BYTE_3(pd->id.serial_number);  in osdp_sc_setup()
261 		osdp_fill_random(pd->sc.cp_random, 8);  in osdp_sc_setup()