pub fn default_random_fill() -> [u8; 1528]Expand description
A fixed, non-cryptographic 1528-byte fill pattern for a server’s own S1
random bytes when the caller has no specific bytes to supply. Per
§5.2.3 the field only needs to “distinguish this handshake from the
peer’s” — no cryptographic randomness is required, so a deterministic
repeating byte pattern is spec-conformant and keeps this crate free of a
rand-style dependency.