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Merge branch 'master' into logging_enabled

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This commit is contained in:
Richard van der Hoff 2016-06-30 14:10:55 +01:00
commit a8d0ac436e
4 changed files with 172 additions and 6 deletions
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3
include/olm/ratchet.hh
View file

@ -179,7 +179,8 @@ std::uint8_t * pickle(
std::uint8_t const * unpickle(
std::uint8_t const * pos, std::uint8_t const * end,
Ratchet & value
Ratchet & value,
bool includes_chain_index
);

9
src/ratchet.cpp
View file

@ -398,12 +398,19 @@ std::uint8_t * olm::pickle(
std::uint8_t const * olm::unpickle(
std::uint8_t const * pos, std::uint8_t const * end,
olm::Ratchet & value
olm::Ratchet & value,
bool includes_chain_index
) {
pos = unpickle(pos, end, value.root_key);
pos = unpickle(pos, end, value.sender_chain);
pos = unpickle(pos, end, value.receiver_chains);
pos = unpickle(pos, end, value.skipped_message_keys);
// pickle v 0x80000001 includes a chain index; pickle v1 does not.
if (includes_chain_index) {
std::uint32_t dummy;
pos = unpickle(pos, end, dummy);
}
return pos;
}

18
src/session.cpp
View file

@ -452,6 +452,8 @@ std::size_t olm::Session::decrypt(
}
namespace {
// the master branch writes pickle version 1; the logging_enabled branch writes
// 0x80000001.
static const std::uint32_t SESSION_PICKLE_VERSION = 1;
}
@ -489,14 +491,26 @@ std::uint8_t const * olm::unpickle(
) {
uint32_t pickle_version;
pos = olm::unpickle(pos, end, pickle_version);
if (pickle_version != SESSION_PICKLE_VERSION) {
bool includes_chain_index;
switch (pickle_version) {
case 1:
includes_chain_index = false;
break;
case 0x80000001UL:
includes_chain_index = true;
break;
default:
value.last_error = OlmErrorCode::OLM_UNKNOWN_PICKLE_VERSION;
return end;
}
pos = olm::unpickle(pos, end, value.received_message);
pos = olm::unpickle(pos, end, value.alice_identity_key);
pos = olm::unpickle(pos, end, value.alice_base_key);
pos = olm::unpickle(pos, end, value.bob_one_time_key);
pos = olm::unpickle(pos, end, value.ratchet);
pos = olm::unpickle(pos, end, value.ratchet, includes_chain_index);
return pos;
}

144
tests/test_session.cpp Normal file
View file

@ -0,0 +1,144 @@
#include "olm/session.hh"
#include "olm/pickle_encoding.h"
#include "unittest.hh"
/* decode into a buffer, which is returned */
std::uint8_t *decode_hex(
const char * input
) {
static std::uint8_t buf[256];
std::uint8_t *p = buf;
while (*input != '\0') {
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');
*p++ = value;
}
return buf;
}
void check_session(const olm::Session &session) {
assert_equals(
decode_hex("49d640dc96b80176694af69fc4b8ca9fac49aecbd697d01fd8bee1ed2693b6c9"),
session.ratchet.root_key, 32
);
assert_equals(
std::size_t(1),
session.ratchet.sender_chain.size()
);
assert_equals(
decode_hex("f77a03eaa9b301fa7d2a5aa6b50286906de12cc96044f526dbbcb12839ad7003"),
session.ratchet.sender_chain[0].ratchet_key.public_key, 32
);
assert_equals(
decode_hex("d945c6ed4c7c277117adf11fb133a7936d287afe97c0b3ac989644b4490d4f31"),
session.ratchet.sender_chain[0].ratchet_key.private_key, 32
);
assert_equals(
std::uint32_t(0),
session.ratchet.sender_chain[0].chain_key.index
);
assert_equals(
std::size_t(0),
session.ratchet.receiver_chains.size()
);
assert_equals(
std::size_t(0),
session.ratchet.skipped_message_keys.size()
);
assert_equals(OLM_SUCCESS, session.last_error);
assert_equals(false, session.received_message);
assert_equals(
decode_hex("7326b58623a3f7bd8da11a1bab51f432c02a7430241b326e9fc8916a21eb257e"),
session.alice_identity_key.public_key, 32
);
assert_equals(
decode_hex("0ab4b30bde20bd374ceccc72861660f0fd046f7516900796c3e5de41c598316c"),
session.alice_base_key.public_key, 32
);
assert_equals(
decode_hex("585dba930b10d90d81702c715f4085d07c42b0cd2d676010bb6086c86c4cc618"),
session.bob_one_time_key.public_key, 32
);
}
int main() {
{
TestCase test_case("V1 session pickle");
const uint8_t *PICKLE_KEY=(uint8_t *)"secret_key";
uint8_t pickled[] =
"wkEpwMgiAqD7B1/Lw2cKYYDcUZVOd9QHes7ZroWxr/Rp/nWEAySgRsIu/a54YhO67rwitr"
"Lpos7tFxxK9IZ7pKB1qrR1coVWIt78V9lp9WgmBAvxHBSY+tu1lkL/JjLi963/yFdPancZ"
"+WHMVfaKlV3gWGpo7EfNK6qAOxI1Ea/eCsE2sYrsHEDvLLGlKAA9E56rmmoe2w6TKzsQjs"
"ZM2/XT2eJ82EgMO9pL02iLElXWmGNv72Ut7DouR0pQIT50HIEEKcFxYcoTb3WCfJD76Coe"
"sE4kx+TA6d45Xu1bwQNNkTGF+nCCu/GmKY+sECXbz9U6WhxG0YdF9Z4T8YkWYAgpKNS0FW"
"RV";
size_t pickle_len = _olm_enc_input(
PICKLE_KEY, strlen((char *)PICKLE_KEY),
pickled, strlen((char *)pickled), NULL
);
olm::Session session;
const uint8_t *unpickle_res = olm::unpickle(pickled, pickled+sizeof(pickled), session);
assert_equals(
pickle_len, (size_t)(unpickle_res - pickled)
);
check_session(session);
#if 0
size_t rawlen = olm::pickle_length(session);
uint8_t *r1 = _olm_enc_output_pos(pickled, rawlen);
olm::pickle(r1, session);
_olm_enc_output(
PICKLE_KEY, strlen((char *)PICKLE_KEY),
pickled, rawlen);
printf("%s\n", pickled);
#endif
}
{
TestCase test_case("V2 session pickle");
const uint8_t *PICKLE_KEY=(uint8_t *)"secret_key";
uint8_t pickled[] =
"m+DS/q34MXpw2xp50ZD0B7val1mlMpQXo0mx+VPje0weFYRRuuZQBdJgcFPEpi2MVSpA4c"
"qgqHyj2/bU7/lz+BXkEBrCFVx0BJidxXfOLDW4TNtRhLS1YHJNGP8GvTg1+dCytBTLsCdm"
"5f945Eq1U/pY3Cg96YTUufFP6EYrfRoDbAsRHc+h+wKKftQv+W44yUmRhcCemGHtpxk3UQ"
"AMCI7EBv9BvveyZMy3p9qZ3xvFK34Hef+R7gjtFycz7Nk/4UF46sT3cTmUlXz9iFW4uz2F"
"rTI1Wjym+l0DadsbSpHSUjmp9zt4qRP2UjwfZ5QNLv+cdObIfqFsiThGu/PlKigdF4SLHr"
"nG";
size_t pickle_len = _olm_enc_input(
PICKLE_KEY, strlen((char *)PICKLE_KEY),
pickled, strlen((char *)pickled), NULL
);
olm::Session session;
const uint8_t *unpickle_res = olm::unpickle(pickled, pickled+sizeof(pickled), session);
assert_equals(
pickle_len, (size_t)(unpickle_res - pickled)
);
check_session(session);
}
return 0;
}