Folgende Konstanten werden von dieser Erweiterung definiert und stehen nur zur Verfügung, wenn die Erweiterung entweder statisch in PHP kompiliert oder dynamisch zur Laufzeit geladen wurde.
RNP_KEYSTORE_GPG
     (string)
    RNP_KEYSTORE_KBX
     (string)
    RNP_KEYSTORE_G10
     (string)
    RNP_LOAD_SAVE_PUBLIC_KEYS
     (integer)
    RNP_LOAD_SAVE_SECRET_KEYS
      to load both public and private keys to the FFI context or save them from the context.
     
    RNP_LOAD_SAVE_SECRET_KEYS
     (integer)
    RNP_LOAD_SAVE_PUBLIC_KEYS
      to load both public and private keys to the FFI context or save them from the context.
     
    RNP_LOAD_SAVE_PERMISSIVE
     (integer)
    RNP_LOAD_SAVE_SINGLE
     (integer)
    RNP_LOAD_SAVE_BASE64
     (integer)
    RNP_FEATURE_SYMM_ALG
     (string)
    RNP_FEATURE_AEAD_ALG
     (string)
    RNP_FEATURE_PROT_MODE
     (string)
    RNP_FEATURE_PK_ALG
     (string)
    RNP_FEATURE_HASH_ALG
     (string)
    RNP_FEATURE_COMP_ALG
     (string)
    RNP_FEATURE_CURVE
     (string)
    RNP_DUMP_MPI
     (integer)
    RNP_DUMP_RAW
     (integer)
    RNP_DUMP_GRIP
     (integer)
    RNP_JSON_DUMP_MPI
     (integer)
    RNP_JSON_DUMP_RAW
     (integer)
    RNP_JSON_DUMP_GRIP
     (integer)
    RNP_ENCRYPT_NOWRAP
     (integer)
    RNP_KEY_EXPORT_ARMORED
     (integer)
    RNP_KEY_EXPORT_PUBLIC
     (integer)
    RNP_KEY_EXPORT_SECRET
     (integer)
    RNP_KEY_EXPORT_SUBKEYS
     (integer)
    RNP_KEY_EXPORT_BASE64
     (integer)
    RNP_KEY_REMOVE_PUBLIC
     (integer)
    RNP_KEY_REMOVE_SECRET
     (integer)
    RNP_KEY_REMOVE_SUBKEYS
     (integer)
    