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[TAS-117] implement first test

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This commit is contained in:
Cesare G. Martínez 2024-01-18 14:00:36 +01:00
parent f7d7f5a784
commit 13cc59c5fa
2 changed files with 30 additions and 16 deletions
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17
src/core/libs/osnma_msg_receiver.cc
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@ -535,7 +535,6 @@ void osnma_msg_receiver::read_mack_header()
void osnma_msg_receiver::read_mack_body()
{
uint8_t lt_bits = 0;
const auto it = OSNMA_TABLE_11.find(d_osnma_data.d_dsm_kroot_message.ts);
if (it != OSNMA_TABLE_11.cend())
@ -703,10 +702,6 @@ void osnma_msg_receiver::read_mack_body()
d_osnma_data.d_mack_message.tag_and_info[k].tag_info.ADKD = ADKD;
d_osnma_data.d_mack_message.tag_and_info[k].tag_info.cop = cop;
}
// TODO - [TAS-110]
// retrieve TESLA key: index i is [479-MH(l_t)-(nt-1)*(16+l_t), i+l_k]
// compute I (GST_SFi,GST_Kroot)
// perform recursive hash calls until base case: i = 10...1
// retrieve tesla key
uint8_t start_index_bytes = ( 480 - (lt_bits + 16) - (nt - 1) * ( lt_bits + 16 ) - 1 ) / 8; // includes -1 to start at [i-1]
@ -798,12 +793,6 @@ void osnma_msg_receiver::process_mack_message(const std::shared_ptr<OSNMA_msg>&
// MACSEQ validation - case no FLX Tags
// C: TODO check ADKD-MACLT for match, also identify which tags are FLX
// d_osnma_data.d_dsm_kroot_message.maclt
// d_osnma_data.d_mack_message.tag_and_info[k].tag
// retrieve data to verify MACK tags
uint8_t msg {0};
uint8_t nt {0};
@ -840,21 +829,17 @@ void osnma_msg_receiver::process_mack_message(const std::shared_ptr<OSNMA_msg>&
std::cout << "Galileo OSNMA: Number of retrieved tags does not match MACLT sequence size!" << std::endl;
return;
}
bool allOk = true; // one being invalid spoils the entire MACK
std::vector<uint8_t> flxTags {};
std::string tempADKD;
for (uint8_t i = 0; i < d_osnma_data.d_mack_message.tag_and_info.size(); i++)
{
// TODO - logic for asserting if if sq[i] == "FLX" (string) or "00X" (int built with first two digits)
tempADKD = sequence[i];
if(tempADKD == "FLX")
{
flxTags.push_back(i); // C: just need to save the index in the sequence
}
else if(d_osnma_data.d_mack_message.tag_and_info[i].tag_info.ADKD != std::stoi(sequence[i]))
{
allOk = false;
std::cout << "Galileo OSNMA: Unsuccessful verification of received ADKD against MAC Look-up table. " << std::endl;
{ std::cout << "Galileo OSNMA: Unsuccessful verification of received ADKD against MAC Look-up table. " << std::endl;
return; // C: suffices one incorrect to abort and not process the rest of the tags
}
}

29
src/tests/unit-tests/signal-processing-blocks/osnma/osnma_sha2_test.cpp Normal file
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@ -0,0 +1,29 @@
//
// Created by cghio on 17.01.24.
//
#include "gtest/gtest.h"
#include "gnss_crypto.h"
//#include "std"
#ifndef GNSS_SDR_GNSS_CRYPTO_SHA2_TEST_H
#define GNSS_SDR_GNSS_CRYPTO_SHA2_TEST_H
class OsnmaCryptoTest : public :: testing ::Test{
};
TEST_F(OsnmaCryptoTest, basicTest)
{
std::unique_ptr<Gnss_Crypto> d_crypto;
auto str = "Hello World!";
std::vector<uint8_t> input (str, str + strlen(str));
auto expectedOutputStr = "86933b0b147ac4c010266b99004158fa17937db89a03dd7bb2ca5ef7f43c325a";
std::vector<uint8_t> expectedOutput(expectedOutputStr, expectedOutputStr + strlen(expectedOutputStr));
std::vector<uint8_t> computedOutput = d_crypto->computeSHA256(input);
ASSERT_TRUE(computedOutput == expectedOutput);
}
#endif // GNSS_SDR_GNSS_CRYPTO_SHA2_TEST_H