SHA1# struct SHA1# Public Types using value_type = evp_md_ctx_st# Public Functions SHA1()# SHA1(SHA1&&) = delete# SHA1(const SHA1&) = delete# void clear()# void update(void const *data, size_t length)# template<typename C>inline void update(C const &obj)# std::span<std::byte const> final(void *buffer, size_t length)# template<typename C>inline std::span<std::byte const> final(C &obj)# Public Static Attributes static constexpr size_t DIGEST_LENGTH = 20#