Changeset 745 for trunk/server/lib/crypto/aes.c

Timestamp:

Nov 27, 2012, 4:43:17 PM (13 years ago)

Author:

Silvan Scherrer

Message:

Samba Server: updated trunk to 3.6.0

Location:

trunk/server

Files:

• . (modified) (1 prop)
• lib/crypto/aes.c (modified) (1 diff)

trunk/server/lib/crypto/aes.c

@@ -113 +113 @@
     }
 }
+
+void aes_cfb8_encrypt(const uint8_t *in, uint8_t *out,
+                      size_t length, const AES_KEY *key,
+                      uint8_t *iv, int forward)
+{
+        size_t i;
+
+        for (i=0; i < length; i++) {
+                uint8_t tiv[AES_BLOCK_SIZE*2];
+
+                memcpy(tiv, iv, AES_BLOCK_SIZE);
+                AES_encrypt(iv, iv, key);
+                if (!forward) {
+                        tiv[AES_BLOCK_SIZE] = in[i];
+                }
+                out[i] = in[i] ^ iv[0];
+                if (forward) {
+                        tiv[AES_BLOCK_SIZE] = out[i];
+                }
+                memcpy(iv, tiv+1, AES_BLOCK_SIZE);
+        }
+}