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authorMatt Johnston <matt@ucc.asn.au>2007-02-22 14:53:49 +0000
committerMatt Johnston <matt@ucc.asn.au>2007-02-22 14:53:49 +0000
commitb01a74a9d757ce2b83465214bde1fa07d3e2d3ea (patch)
tree092cac6797947f7b23fcdcc2c081b19c390c5bc4 /libtomcrypt/src/modes/f8/f8_setiv.c
parent66643fa5c723da2dc781c5eeae2e008c280a7b1c (diff)
parent7f12251fbb2acefac04e13a7c6a95ca4dd4b5578 (diff)
merge of 'a9b0496634cdd25647b65e585cc3240f3fa699ee'
and 'c22be8b8f570b48e9662dac32c7b3e7148a42206' --HG-- extra : convert_revision : 066f6aef2791d54b9ec6a0c3033fd28fa946251f
Diffstat (limited to 'libtomcrypt/src/modes/f8/f8_setiv.c')
-rw-r--r--libtomcrypt/src/modes/f8/f8_setiv.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/libtomcrypt/src/modes/f8/f8_setiv.c b/libtomcrypt/src/modes/f8/f8_setiv.c
new file mode 100644
index 0000000..469cc15
--- /dev/null
+++ b/libtomcrypt/src/modes/f8/f8_setiv.c
@@ -0,0 +1,52 @@
+/* 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.com
+ */
+#include "tomcrypt.h"
+
+/**
+ @file f8_setiv.c
+ F8 implementation, set IV, Tom St Denis
+*/
+
+#ifdef LTC_F8_MODE
+
+/**
+ Set an initial vector
+ @param IV The initial vector
+ @param len The length of the vector (in octets)
+ @param f8 The F8 state
+ @return CRYPT_OK if successful
+*/
+int f8_setiv(const unsigned char *IV, unsigned long len, symmetric_F8 *f8)
+{
+ int err;
+
+ LTC_ARGCHK(IV != NULL);
+ LTC_ARGCHK(f8 != NULL);
+
+ if ((err = cipher_is_valid(f8->cipher)) != CRYPT_OK) {
+ return err;
+ }
+
+ if (len != (unsigned long)f8->blocklen) {
+ return CRYPT_INVALID_ARG;
+ }
+
+ /* force next block */
+ f8->padlen = 0;
+ return cipher_descriptor[f8->cipher].ecb_encrypt(IV, f8->IV, &f8->key);
+}
+
+#endif
+
+
+/* $Source: /cvs/libtom/libtomcrypt/src/modes/f8/f8_setiv.c,v $ */
+/* $Revision: 1.2 $ */
+/* $Date: 2006/06/16 22:49:25 $ */