diff options
Diffstat (limited to 'src/megolm.c')
| -rw-r--r-- | src/megolm.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/src/megolm.c b/src/megolm.c index 58fe725..7567894 100644 --- a/src/megolm.c +++ b/src/megolm.c @@ -20,6 +20,7 @@ #include "olm/cipher.h" #include "olm/crypto.h" +#include "olm/pickle.h" const struct _olm_cipher *megolm_cipher() { static const uint8_t CIPHER_KDF_INFO[] = "MEGOLM_KEYS"; @@ -59,12 +60,32 @@ static void rehash_part( -void megolm_init(Megolm *megolm, uint8_t const *random_data, uint32_t counter) -{ +void megolm_init(Megolm *megolm, uint8_t const *random_data, uint32_t counter) { megolm->counter = counter; memcpy(megolm->data, random_data, MEGOLM_RATCHET_LENGTH); } +size_t megolm_pickle_length(const Megolm *megolm) { + size_t length = 0; + length += _olm_pickle_bytes_length(megolm_get_data(megolm), MEGOLM_RATCHET_LENGTH); + length += _olm_pickle_uint32_length(megolm->counter); + return length; + +} + +uint8_t * megolm_pickle(const Megolm *megolm, uint8_t *pos) { + pos = _olm_pickle_bytes(pos, megolm_get_data(megolm), MEGOLM_RATCHET_LENGTH); + pos = _olm_pickle_uint32(pos, megolm->counter); + return pos; +} + +const uint8_t * megolm_unpickle(Megolm *megolm, const uint8_t *pos, + const uint8_t *end) { + pos = _olm_unpickle_bytes(pos, end, (uint8_t *)(megolm->data), + MEGOLM_RATCHET_LENGTH); + pos = _olm_unpickle_uint32(pos, end, &megolm->counter); + return pos; +} /* simplistic implementation for a single step */ void megolm_advance(Megolm *megolm) { |