library(crypt)
crypt_open(
+FileName,
+Password,
+Mode,
-Stream)
open(
FileName,
Mode,
Stream)
except that the
external file is encrypted, using Password as the key.
crypt_open(
+FileName,
+Mode,
-Stream)
crypt_open/4
.
These predicates do not use any of the encryption features of the operating system, so a separate C program for managing encrypted files is included.