char *silc_encode_pem_file(unsigned char *data, uint32 data_len);
unsigned char *silc_decode_pem(unsigned char *pem, uint32 pem_len,
uint32 *ret_len);
char *silc_encode_pem_file(unsigned char *data, uint32 data_len);
unsigned char *silc_decode_pem(unsigned char *pem, uint32 pem_len,
uint32 *ret_len);