diff libtomcrypt/src/modes/ecb/ecb_encrypt.c @ 391:00fcf5045160

propagate from branch 'au.asn.ucc.matt.ltc.dropbear' (head c1db4398d56c56c6d06ae1e20c1e0d04dbb598ed) to branch 'au.asn.ucc.matt.dropbear' (head d26d5eb2837f46b56a33fb0e7573aa0201abd4d5)
author Matt Johnston <matt@ucc.asn.au>
date Thu, 11 Jan 2007 04:29:08 +0000
parents 0cbe8f6dbf9e
children f849a5ca2efc
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libtomcrypt/src/modes/ecb/ecb_encrypt.c	Thu Jan 11 04:29:08 2007 +0000
@@ -0,0 +1,61 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ *
+ * Tom St Denis, [email protected], http://libtomcrypt.com
+ */
+#include "tomcrypt.h"
+
+/**
+  @file ecb_encrypt.c
+  ECB implementation, encrypt a block, Tom St Denis
+*/
+
+#ifdef LTC_ECB_MODE
+
+/**
+  ECB encrypt
+  @param pt     Plaintext
+  @param ct     [out] Ciphertext
+  @param len    The number of octets to process (must be multiple of the cipher block size)
+  @param ecb    ECB state
+  @return CRYPT_OK if successful
+*/
+int ecb_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_ECB *ecb)
+{
+   int err;
+   LTC_ARGCHK(pt != NULL);
+   LTC_ARGCHK(ct != NULL);
+   LTC_ARGCHK(ecb != NULL);
+   if ((err = cipher_is_valid(ecb->cipher)) != CRYPT_OK) {
+       return err;
+   }
+   if (len % cipher_descriptor[ecb->cipher].block_length) {
+      return CRYPT_INVALID_ARG;
+   }
+
+   /* check for accel */
+   if (cipher_descriptor[ecb->cipher].accel_ecb_encrypt != NULL) {
+      return cipher_descriptor[ecb->cipher].accel_ecb_encrypt(pt, ct, len / cipher_descriptor[ecb->cipher].block_length, &ecb->key);
+   } else {
+      while (len) {
+         if ((err = cipher_descriptor[ecb->cipher].ecb_encrypt(pt, ct, &ecb->key)) != CRYPT_OK) {
+            return err;
+         }
+         pt  += cipher_descriptor[ecb->cipher].block_length;
+         ct  += cipher_descriptor[ecb->cipher].block_length;
+         len -= cipher_descriptor[ecb->cipher].block_length;
+      }
+   }
+   return CRYPT_OK;
+}
+
+#endif
+
+/* $Source: /cvs/libtom/libtomcrypt/src/modes/ecb/ecb_encrypt.c,v $ */
+/* $Revision: 1.9 $ */
+/* $Date: 2006/06/29 01:51:34 $ */