X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=libtomcrypt%2Fsrc%2Fencauth%2Feax%2Feax_encrypt.c;fp=libtomcrypt%2Fsrc%2Fencauth%2Feax%2Feax_encrypt.c;h=174f263d86afc32e8f0e339781ce25e6a9d8c6a2;hb=66bc25938679f1d6a1d1200f329093d82a5e99b4;hp=0000000000000000000000000000000000000000;hpb=a52ee0733f420ca20224049260d6fc5cf7d8f621;p=zpackage

diff --git a/libtomcrypt/src/encauth/eax/eax_encrypt.c b/libtomcrypt/src/encauth/eax/eax_encrypt.c
new file mode 100644
index 0000000..174f263
--- /dev/null
+++ b/libtomcrypt/src/encauth/eax/eax_encrypt.c
@@ -0,0 +1,49 @@
+/* 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.
+ */
+
+/**
+   @file eax_encrypt.c
+   EAX implementation, encrypt block by Tom St Denis
+*/
+#include "tomcrypt.h"
+
+#ifdef LTC_EAX_MODE
+
+/**
+   Encrypt with EAX a block of data.
+   @param eax        The EAX state
+   @param pt         The plaintext to encrypt
+   @param ct         [out] The ciphertext as encrypted
+   @param length     The length of the plaintext (octets)
+   @return CRYPT_OK if successful
+*/
+int eax_encrypt(eax_state *eax, const unsigned char *pt, unsigned char *ct,
+                unsigned long length)
+{
+   int err;
+
+   LTC_ARGCHK(eax != NULL);
+   LTC_ARGCHK(pt  != NULL);
+   LTC_ARGCHK(ct  != NULL);
+
+   /* encrypt */
+   if ((err = ctr_encrypt(pt, ct, length, &eax->ctr)) != CRYPT_OK) {
+      return err;
+   }
+
+   /* omac ciphertext */
+   return omac_process(&eax->ctomac, ct, length);
+}
+
+#endif
+
+
+/* ref:         $Format:%D$ */
+/* git commit:  $Format:%H$ */
+/* commit time: $Format:%ai$ */