<defines> FFI -> 20210220 </defines> <header:internal> ffi_mp.h ffi_pkey.h ffi_rng.h ffi_util.h </header:internal> <header:public> ffi.h </header:public> <requires> block stream hash aead kdf pbkdf pubkey pem bigint sha2_32 #x509 #tls system_rng auto_rng </requires>