Is it possible to encrypt a stream on the fly ?

[BOITEUX, Frederic]

	Hello,

  I've a program producing some sound records,  I'd like to use GPGME to encrypt this records (using RSA key) and I have some questions about this :

- the records are produced continuously and handled regurlarly through  small data blocks (in memory), and I have to encrypt data before to write it in a file. I wonder if I could encrypt data on the fly, small blocks by small blocks, or if all input data should be here to run encryption (using gpgme_op_encrypt() or gpgme_op_encrypt_start() functions) ? I've read "Callback Based Data Buffers" page in documentation, but it seems gpgme_data_read_cb_t function should be blocking when if data isn't available...

- moreover, this program is multi-threaded and can process multiple records in the same time : could these encryptions be done asynchronously, using only one gpgme_wait() call (by a specific thread I guess) ? Do you have some sample codes doing this kind of stuff ? I've read the GPGME documentation, but I'm confused about how to do this.

	Any help would be appreciated, thanks !
		Fred.

This message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message.