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Merge pull request #189 from axpe95/decrypt_fix

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fix nxdn scramber roll on facch1 after superframe
This commit is contained in:
lwvmobile
2024-02-14 13:17:16 -05:00
committed by GitHub
parent de5b99dbb9 ad592cdc59
commit 4324afc593
1 changed files with 10 additions and 0 deletions
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10
src/nxdn_frame.c
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@@ -419,6 +419,11 @@ void nxdn_frame (dsd_opts * opts, dsd_state * state)
//roll the voice scrambler LFSR here if key available to advance seed (usually just needed on NXDN96)
if (state->nxdn_cipher_type == 0x1 && state->R != 0)
{
if (state->payload_miN == 0)
{
state->payload_miN = state->R;
}
char ambe_temp[49] = {0};
char ambe_d[49] = {0};
for (int i = 0; i < 4; i++)
@@ -436,6 +441,11 @@ void nxdn_frame (dsd_opts * opts, dsd_state * state)
//roll the voice scrambler LFSR here if key available to advance seed -- half rotation on a facch steal
if (state->nxdn_cipher_type == 0x1 && state->R != 0)
{
if (state->payload_miN == 0)
{
state->payload_miN = state->R;
}
char ambe_temp[49] = {0};
char ambe_d[49] = {0};
for (int i = 0; i < 2; i++)