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authorMatt Johnston <matt@ucc.asn.au>2006-03-08 12:58:00 +0000
committerMatt Johnston <matt@ucc.asn.au>2006-03-08 12:58:00 +0000
commitc57e1d8def6e38d350da8b098a91806d405e952e (patch)
treedbd7bff4e514b7bfd2f2fe365eeaaea77ebafffd /src/modes/ecb/ecb_encrypt.c
Re-import libtomcrypt 1.05 for cleaner propagating.
From crypt-1.05.tar.bz2, SHA1 of 88250202bb51570dc64f7e8f1c943cda9479258f --HG-- branch : libtomcrypt-orig extra : convert_revision : 5c0c50e93111636ccf8deb758a689ad713797baf
Diffstat (limited to 'src/modes/ecb/ecb_encrypt.c')
-rw-r--r--src/modes/ecb/ecb_encrypt.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/src/modes/ecb/ecb_encrypt.c b/src/modes/ecb/ecb_encrypt.c
new file mode 100644
index 0000000..21e0385
--- /dev/null
+++ b/src/modes/ecb/ecb_encrypt.c
@@ -0,0 +1,59 @@
+/* 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, tomstdenis@gmail.com, http://libtomcrypt.org
+ */
+#include "tomcrypt.h"
+
+/**
+ @file ecb_encrypt.c
+ ECB implementation, encrypt a block, Tom St Denis
+*/
+
+#ifdef ECB
+
+/**
+ 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) {
+ cipher_descriptor[ecb->cipher].accel_ecb_encrypt(pt, ct, len / cipher_descriptor[ecb->cipher].block_length, &ecb->key);
+ } else {
+ while (len) {
+ cipher_descriptor[ecb->cipher].ecb_encrypt(pt, ct, &ecb->key);
+ 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: 1.5 $ */
+/* $Date: 2005/05/05 14:35:59 $ */