init repo.

third_party/curl/lib/curl_hmac.h

@@ -0,0 +1,78 @@
+#ifndef HEADER_CURL_HMAC_H
+#define HEADER_CURL_HMAC_H
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ * SPDX-License-Identifier: curl
+ *
+ ***************************************************************************/
+
+#if (defined(USE_CURL_NTLM_CORE) && !defined(USE_WINDOWS_SSPI))         \
+  || !defined(CURL_DISABLE_AWS) || !defined(CURL_DISABLE_DIGEST_AUTH)   \
+  || defined(USE_LIBSSH2)
+
+#include <curl/curl.h>
+
+#define HMAC_MD5_LENGTH 16
+
+typedef CURLcode (* HMAC_hinit_func)(void *context);
+typedef void    (* HMAC_hupdate_func)(void *context,
+                                      const unsigned char *data,
+                                      unsigned int len);
+typedef void    (* HMAC_hfinal_func)(unsigned char *result, void *context);
+
+
+/* Per-hash function HMAC parameters. */
+struct HMAC_params {
+  HMAC_hinit_func
+  hmac_hinit;     /* Initialize context procedure. */
+  HMAC_hupdate_func     hmac_hupdate;   /* Update context with data. */
+  HMAC_hfinal_func      hmac_hfinal;    /* Get final result procedure. */
+  unsigned int          hmac_ctxtsize;  /* Context structure size. */
+  unsigned int          hmac_maxkeylen; /* Maximum key length (bytes). */
+  unsigned int          hmac_resultlen; /* Result length (bytes). */
+};
+
+
+/* HMAC computation context. */
+struct HMAC_context {
+  const struct HMAC_params *hmac_hash; /* Hash function definition. */
+  void *hmac_hashctxt1;         /* Hash function context 1. */
+  void *hmac_hashctxt2;         /* Hash function context 2. */
+};
+
+
+/* Prototypes. */
+struct HMAC_context *Curl_HMAC_init(const struct HMAC_params *hashparams,
+                                    const unsigned char *key,
+                                    unsigned int keylen);
+int Curl_HMAC_update(struct HMAC_context *context,
+                     const unsigned char *data,
+                     unsigned int len);
+int Curl_HMAC_final(struct HMAC_context *context, unsigned char *result);
+
+CURLcode Curl_hmacit(const struct HMAC_params *hashparams,
+                     const unsigned char *key, const size_t keylen,
+                     const unsigned char *data, const size_t datalen,
+                     unsigned char *output);
+
+#endif
+
+#endif /* HEADER_CURL_HMAC_H */