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for pdcp security

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BEARER should be RB identity - 1
secondly half of 256 bit key is used for 128 bit key

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4640 818b1a75-f10b-46b9-bf7c-635c3b92a50f
This commit is contained in:
xuhl
2013-12-09 01:07:02 +00:00
parent e9f32950de
commit 218b9162f1
1 changed files with 8 additions and 8 deletions
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openair2/LAYER2/PDCP_v10.1.0/pdcp_security.c
+8 -8
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@@ -100,7 +100,7 @@ int pdcp_apply_security(pdcp_t *pdcp_entity, rb_id_t rb_id,
vcd_signal_dumper_dump_function_by_name(VCD_SIGNAL_DUMPER_FUNCTIONS_PDCP_APPLY_SECURITY, VCD_FUNCTION_IN);
encrypt_params.direction = (pdcp_entity->is_ue == 1) ? SECU_DIRECTION_UPLINK : SECU_DIRECTION_DOWNLINK;
encrypt_params.bearer = rb_id;
encrypt_params.bearer = rb_id - 1;
encrypt_params.count = pdcp_get_next_count_tx(pdcp_entity, pdcp_header_len, current_sn);
encrypt_params.key_length = 16;
@@ -113,7 +113,7 @@ int pdcp_apply_security(pdcp_t *pdcp_entity, rb_id_t rb_id,
encrypt_params.message = pdcp_pdu_buffer;
encrypt_params.blength = (pdcp_header_len + sdu_buffer_size) << 3;
encrypt_params.key = pdcp_entity->kRRCint;
encrypt_params.key = pdcp_entity->kRRCint + 128;
mac_i = &pdcp_pdu_buffer[pdcp_header_len + sdu_buffer_size];
@@ -122,12 +122,12 @@ int pdcp_apply_security(pdcp_t *pdcp_entity, rb_id_t rb_id,
stream_compute_integrity(pdcp_entity->integrityProtAlgorithm, &encrypt_params,
mac_i);
encrypt_params.key = pdcp_entity->kRRCenc;
encrypt_params.key = pdcp_entity->kRRCenc + 128;
} else {
LOG_D(PDCP, "[OSA][RB %d] %s Applying user-plane security\n",
rb_id, (pdcp_entity->is_ue != 0) ? "UE -> eNB" : "eNB -> UE");
encrypt_params.key = pdcp_entity->kUPenc;
encrypt_params.key = pdcp_entity->kUPenc + 128;
}
encrypt_params.message = &pdcp_pdu_buffer[pdcp_header_len];
@@ -161,7 +161,7 @@ int pdcp_validate_security(pdcp_t *pdcp_entity, rb_id_t rb_id,
buffer_decrypted = (u8*)&pdcp_pdu_buffer[pdcp_header_len];
decrypt_params.direction = (pdcp_entity->is_ue == 1) ? SECU_DIRECTION_DOWNLINK : SECU_DIRECTION_UPLINK ;
decrypt_params.bearer = rb_id;
decrypt_params.bearer = rb_id - 1;
decrypt_params.count = pdcp_get_next_count_rx(pdcp_entity, pdcp_header_len, current_sn);
decrypt_params.message = &pdcp_pdu_buffer[pdcp_header_len];
decrypt_params.blength = (sdu_buffer_size - pdcp_header_len) << 3;
@@ -170,11 +170,11 @@ int pdcp_validate_security(pdcp_t *pdcp_entity, rb_id_t rb_id,
if (rb_id < DTCH) {
LOG_D(PDCP, "[OSA][RB %d] %s Validating control-plane security\n",
rb_id, (pdcp_entity->is_ue != 0) ? "eNB -> UE" : "UE -> eNB");
decrypt_params.key = pdcp_entity->kRRCenc;
decrypt_params.key = pdcp_entity->kRRCenc + 128;
} else {
LOG_D(PDCP, "[OSA][RB %d] %s Validating user-plane security\n",
rb_id, (pdcp_entity->is_ue != 0) ? "eNB -> UE" : "UE -> eNB");
decrypt_params.key = pdcp_entity->kUPenc;
decrypt_params.key = pdcp_entity->kUPenc + 128;
}
/* Uncipher the block */
@@ -184,7 +184,7 @@ int pdcp_validate_security(pdcp_t *pdcp_entity, rb_id_t rb_id,
/* Now check the integrity of the complete PDU */
decrypt_params.message = pdcp_pdu_buffer;
decrypt_params.blength = sdu_buffer_size << 3;
decrypt_params.key = pdcp_entity->kRRCint;
decrypt_params.key = pdcp_entity->kRRCint + 128;
if (stream_check_integrity(pdcp_entity->integrityProtAlgorithm,
&decrypt_params, &pdcp_pdu_buffer[sdu_buffer_size]) != 0)