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@@ -8154,17 +8154,30 @@ mg_websocket_client_write(struct mg_connection *conn,
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int retval = -1;
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size_t i = 0;
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static uint64_t lfsr = 0;
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+ static uint64_t lcg = 0;
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uint32_t masking_key;
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char *masked_data = (char *)mg_malloc(((dataLen + 7) / 4) * 4);
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+ struct timespec now;
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+
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+ memset(&now, 0, sizeof(now));
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+ clock_gettime(CLOCK_MONOTONIC, &now);
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if (lfsr == 0) {
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- lfsr = (uint64_t)time(NULL);
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+ lfsr = (((uint64_t)now.tv_sec) << 21) ^ (uint64_t)now.tv_nsec
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+ ^ (uint64_t)&dataLen;
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} else {
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lfsr = (lfsr >> 1)
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| ((((lfsr >> 0) ^ (lfsr >> 1) ^ (lfsr >> 3) ^ (lfsr >> 4)) & 1)
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<< 63);
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}
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- masking_key = (uint32_t)lfsr;
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+ if (lcg == 0) {
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+ lcg = (((uint64_t)now.tv_sec) << 25) + (uint64_t)now.tv_nsec
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+ + (uint64_t)data;
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+ } else {
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+ lcg = lcg * 6364136223846793005 + 1442695040888963407;
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+ }
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+
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+ masking_key = (uint32_t)lfsr ^ (uint32_t)lcg ^ now.tv_nsec;
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if (masked_data == NULL) {
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/* Return -1 in an error case */
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