Changeset 350

Timestamp:

02/01/06 10:58:24

Author:

ben

Message:

Add IDEA.

Files:

• openpgpsdk/trunk/src/symmetric.c (modified) (5 diffs)

openpgpsdk/trunk/src/symmetric.c

@@ -3 +3 @@
-#include <assert.h>
-#include <openssl/cast.h>
+#include <openssl/idea.h>
-
-typedef struct
@@ -115 +116 @@
-    { memcpy(decrypt->key,key,decrypt->keysize); }
-
+static void std_finish(ops_decrypt_t *decrypt)
+    {
+    free(decrypt->data);
+    decrypt->data=NULL;
+    }
+
-static void cast5_init(ops_decrypt_t *decrypt)
-    {
@@ -131 +138 @@
-
-    return count;
-    }
-
-static void std_finish(ops_decrypt_t *decrypt)
-    {
-    free(decrypt->data);
-    decrypt->data=NULL;
-    }
-
@@ -154 +155 @@
-    };
-
+static void idea_init(ops_decrypt_t *decrypt)
+    {
+    IDEA_KEY_SCHEDULE ks;
+
+    assert(decrypt->keysize == IDEA_KEY_LENGTH);
+
+    free(decrypt->data);
+    decrypt->data=malloc(sizeof(IDEA_KEY_SCHEDULE));
+
+    idea_set_encrypt_key(decrypt->key,&ks);
+    idea_set_decrypt_key(&ks,decrypt->data);
+
+    memcpy(decrypt->civ,decrypt->iv,decrypt->blocksize);
+    decrypt->num=0;
+    }
+
+static size_t idea_decrypt(ops_decrypt_t *decrypt,void *out,const void *in,
+                            int count)
+    {
+    idea_cfb64_encrypt(in,out,count,decrypt->data,decrypt->civ,&decrypt->num,
+                       0);
+
+    return count;
+    }
+
+static ops_decrypt_t idea=
+    {
+    OPS_SA_IDEA,
+    IDEA_BLOCK,
+    IDEA_KEY_LENGTH,
+    std_set_iv,
+    std_set_key,
+    idea_init,
+    idea_decrypt,
+    std_finish,
+    TRAILER
+    };
+
-static ops_decrypt_t *get_proto(ops_symmetric_algorithm_t alg)
-    {
@@ -161 +200 @@
-        return &cast5;
-
+    case OPS_SA_IDEA:
+        return &idea;
+
-    default:
-        assert(0);