Make tables of standard encryption schemes etc.

[u/mdw/catacomb] / gcipher.h

diff --git a/gcipher.h b/gcipher.h
index b8c34bf..f25fb93 100644 (file)
--- a/gcipher.h
+++ b/gcipher.h
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: gcipher.h,v 1.2 2000/06/17 10:56:00 mdw Exp $
+ * $Id: gcipher.h,v 1.3 2004/04/04 19:42:30 mdw Exp $
  *
  * Generic symmetric cipher interface
  *
@@ -30,6 +30,9 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: gcipher.h,v $
+ * Revision 1.3  2004/04/04 19:42:30  mdw
+ * Make tables of standard encryption schemes etc.
+ *
  * Revision 1.2  2000/06/17 10:56:00  mdw
  * New key size interface.
  *
@@ -75,6 +78,14 @@ typedef struct gccipher {
   gcipher *(*init)(const void */*k*/, size_t /*sz*/);
 } gccipher;
 
+#define GC_INIT(cc, k, sz)     (cc)->init((k), (sz))
+#define GC_CLASS(c)            (c)->ops->c
+#define GC_ENCRYPT(c, s, t, sz)        (c)->ops->encrypt((c), (s), (t), (sz))
+#define GC_DECRYPT(c, s, t, sz)        (c)->ops->decrypt((c), (s), (t), (sz))
+#define GC_DESTROY(c)          (c)->ops->destroy((c))
+#define GC_SETIV(c, iv)                (c)->ops->setiv((c), (iv))
+#define GC_BDRY(c)             (c)->ops->bdry((c))
+
 /*----- Key size management -----------------------------------------------*/
 
 /* --- Key size type constants --- *
@@ -120,6 +131,19 @@ extern size_t keysz(size_t /*sz*/, const octet */*ksz*/);
 #define KSZ_ASSERT(pre, sz)                                            \
   assert(((void)"Bad key size for " #pre, KSZ_CHECK(pre, sz)))
 
+/*----- Tables ------------------------------------------------------------*/
+
+extern const gccipher *const gciphertab[];
+
+/* --- @gcipher_byname@ --- *
+ *
+ * Arguments:  @const char *p@ = pointer to name string
+ *
+ * Returns:    The named cipher class, or null.
+ */
+
+extern const gccipher *gcipher_byname(const char */*p*/);
+
 /*----- That's all, folks -------------------------------------------------*/
 
 #ifdef __cplusplus