Replaced system SQLite with SQLCipher to support encrypted database

Sources/DataLiteC/libtomcrypt/encauth/eax/eax_encrypt.c

@@ -0,0 +1,39 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
+/* SPDX-License-Identifier: Unlicense */
+
+/**
+   @file eax_encrypt.c
+   EAX implementation, encrypt block by Tom St Denis
+*/
+#include "tomcrypt_private.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
+