X-Git-Url: https://git.distorted.org.uk/~mdw/tripe/blobdiff_plain/e9fcf28eed6a6e44d2e2b963b06bad2ae76309e1..0c1cede3374c0e3110303fc031698c37d2450469:/server/tripe.h

diff --git a/server/tripe.h b/server/tripe.h
index 5550c1fd..940e3d61 100644
--- a/server/tripe.h
+++ b/server/tripe.h
@@ -1801,6 +1801,42 @@ extern void ratelim_init(ratelim */*r*/,
 
 extern int ratelim_withdraw(ratelim */*r*/, unsigned /*n*/);
 
+/* --- @ies_encrypt@ --- *
+ *
+ * Arguments:	@kdata *kpub@ = recipient's public key
+ *		@unsigned ty@ = message type octet
+ *		@buf *b@ = input message buffer
+ *		@buf *bb@ = output buffer for the ciphertext
+ *
+ * Returns:	On error, returns a @KSERR_...@ code or breaks the buffer;
+ *		on success, returns zero and the buffer is good.
+ *
+ * Use:		Encrypts a message for a recipient, given their public key.
+ *		This does not (by itself) provide forward secrecy or sender
+ *		authenticity.  The ciphertext is self-delimiting (unlike
+ *		@ks_encrypt@).
+ */
+
+extern int ies_encrypt(kdata */*kpub*/, unsigned /*ty*/,
+		       buf */*b*/, buf */*bb*/);
+
+/* --- @ies_decrypt@ --- *
+ *
+ * Arguments:	@kdata *kpub@ = private key key
+ *		@unsigned ty@ = message type octet
+ *		@buf *b@ = input ciphertext buffer
+ *		@buf *bb@ = output buffer for the message
+ *
+ * Returns:	On error, returns a @KSERR_...@ code; on success, returns
+ *		zero and the buffer is good.
+ *
+ * Use:		Decrypts a message encrypted using @ies_encrypt@, given our
+ *		private key.
+ */
+
+extern int ies_decrypt(kdata */*kpriv*/, unsigned /*ty*/,
+		       buf */*b*/, buf */*bb*/);
+
 /*----- That's all, folks -------------------------------------------------*/
 
 #ifdef __cplusplus