* DESCRIPTION
*
* Encodes data into Base 64 (PEM) encoding. Returns NULL terminated
- * Base 64 encoded data string.
+ * Base 64 encoded data string. Returns NULL if system is out of memory.
*
* If `stack' is non-NULL the returned buffer is allocated from `stack'.
*
* DESCRIPTION
*
* Same as silc_base64_encode() but puts newline ('\n') every 72
- * characters.
+ * characters. Returns NULL if system is out of memory.
*
* If `stack' is non-NULL the returned buffer is allocated from `stack'.
*
*
* DESCRIPTION
*
- * Decodes Base 64 (PEM) into data. Returns the decoded data.
+ * Decodes Base 64 (PEM) into data. Returns the decoded data. Returns
+ * NULL if the data is not valid Base 64 encoded data.
*
* If `stack' is non-NULL the returned buffer is allocated from `stack'.
*