diff -r 3e55bed345f9 -r a95ee94b9204 libidav/crypto.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libidav/crypto.h	Mon Mar 17 18:42:01 2014 +0100
@@ -0,0 +1,79 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2013 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef DAV_CRYPTO_H
+#define	DAV_CRYPTO_H
+
+#include "webdav.h"
+#include <openssl/evp.h>
+#include <ucx/string.h>
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+    EVP_CIPHER_CTX ctx;
+    void           *stream;
+    dav_write_func write;
+    DavKey         *key;
+    int            init;
+    unsigned char  ivtmp[16];
+    size_t         ivpos;
+} AESDecrypter;
+
+typedef struct {
+    EVP_CIPHER_CTX ctx;
+    void           *iv;
+    size_t         ivlen;
+    void           *stream;
+    dav_read_func  read;
+    char           *tmp;
+    size_t         tmplen;
+    size_t         tmpoff;
+    int            end;
+} AESEncrypter;
+
+AESDecrypter* aes_decrypter_new(DavKey *key, void *stream, dav_write_func write_func);
+size_t aes_write(const void *buf, size_t s, size_t n, AESDecrypter *dec);
+void aes_decrypter_close(AESDecrypter *dec);
+void aes_decrypter_close2(EVP_CIPHER_CTX *ctx);
+
+AESEncrypter* aes_encrypter_new(DavKey *key, void *stream, dav_read_func read_func);
+size_t aes_read(void *buf, size_t s, size_t n, AESEncrypter *enc);
+void aes_encrypter_close(AESEncrypter *enc);
+
+char* aes_encrypt(char *in, DavKey *key);
+char* aes_decrypt(char *in, DavKey *key);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* DAV_CRYPTO_H */
+