olm/tests/test_olm_decrypt.cpp

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#include "olm/olm.h"
#include "unittest.hh"
const char * test_cases[] = {
"41776f",
"7fff6f0101346d671201",
"ee776f41496f674177804177778041776f6716670a677d6f670a67c2677d",
"e9e9c9c1e9e9c9e9c9c1e9e9c9c1",
};
const char * session_data =
"E0p44KO2y2pzp9FIjv0rud2wIvWDi2dx367kP4Fz/9JCMrH+aG369HGymkFtk0+PINTLB9lQRt"
"ohea5d7G/UXQx3r5y4IWuyh1xaRnojEZQ9a5HRZSNtvmZ9NY1f1gutYa4UtcZcbvczN8b/5Bqg"
"e16cPUH1v62JKLlhoAJwRkH1wU6fbyOudERg5gdXA971btR+Q2V8GKbVbO5fGKL5phmEPVXyMs"
"rfjLdzQrgjOTxN8Pf6iuP+WFPvfnR9lDmNCFxJUVAdLIMnLuAdxf1TGcS+zzCzEE8btIZ99mHF"
"dGvPXeH8qLeNZA";
void decode_hex(
const char * input,
std::uint8_t * output, std::size_t output_length
) {
std::uint8_t * end = output + output_length;
while (output != end) {
char high = *(input++);
char low = *(input++);
if (high >= 'a') high -= 'a' - ('9' + 1);
if (low >= 'a') low -= 'a' - ('9' + 1);
uint8_t value = ((high - '0') << 4) | (low - '0');
*(output++) = value;
}
}
void decrypt_case(int message_type, const char * test_case) {
std::uint8_t session_memory[olm_session_size()];
::OlmSession * session = ::olm_session(session_memory);
std::uint8_t pickled[strlen(session_data)];
::memcpy(pickled, session_data, sizeof(pickled));
::olm_unpickle_session(session, "", 0, pickled, sizeof(pickled));
std::size_t message_length = strlen(test_case) / 2;
std::uint8_t * message = (std::uint8_t *) ::malloc(message_length);
decode_hex(test_case, message, message_length);
size_t max_length = olm_decrypt_max_plaintext_length(
session, message_type, message, message_length
);
if (max_length == std::size_t(-1)) {
free(message);
return;
}
uint8_t plaintext[max_length];
decode_hex(test_case, message, message_length);
olm_decrypt(
session, message_type,
message, message_length,
plaintext, max_length
);
free(message);
}
int main() {
{
TestCase my_test("Olm decrypt test");
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for (unsigned int i = 0; i < sizeof(test_cases)/ sizeof(const char *); ++i) {
decrypt_case(0, test_cases[i]);
}
}
}