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/trusted-firmware-m-3.7.0/lib/ext/cryptocell-312-runtime/codesafe/src/crypto_api/rnd_dma/
Dllf_rnd.c249 uint32_t n2, pp, od; in LLF_RND_EntropyEstimate() local
255 pp = SQR(m) + SQR(n-m); /* related to theoretical "autocorrelation" probability */ in LLF_RND_EntropyEstimate()
259 if (n2 > pp) in LLF_RND_EntropyEstimate()
260 od = n2 - pp; in LLF_RND_EntropyEstimate()
262 od = pp - n2; in LLF_RND_EntropyEstimate()
266 var = Mult32x32(pp,(n2-pp)); in LLF_RND_EntropyEstimate()