-the encryption algorithm to use. DES (56 bits), triple DES (168 bits),
-40, 64 or 128 bit RC2, 128, 192 or 256 bit AES, or 128, 192 or 256 bit Camellia respectively. If not
-specified 40 bit RC2 is used. Only used with B<-encrypt>.
+the encryption algorithm to use. DES (56 bits), triple DES (168 bits), 40, 64
+or 128 bit RC2, 128, 192 or 256 bit AES, or 128, 192 or 256 bit Camellia
+respectively. Any other cipher name (as recognized by the
+EVP_get_cipherbyname() function) can also be used preceded by a dash, for
+example B<-aes_128_cbc>.
+
+If not specified 40 bit RC2 is used. Only used with B<-encrypt>.