prfSha256

private fnubyte[] prfSha256(const(ubyte)[] secret, const(ubyte)[] seed, size_t length)

TLS 1.2 PRF-SHA256 (P_SHA256) implementation for SRTP key derivation.

Parameters

secretThe PRF secret (master secret).
seedThe PRF seed (label + randoms).
lengthNumber of bytes to derive.

Returns

Derived key material bytes.