1 files changed, 77 insertions, 0 deletions
diff --git a/libmariadb/libmariadb/secure/gnutls_crypt.c b/libmariadb/libmariadb/secure/gnutls_crypt.c
new file mode 100644
index 00000000..a669e88e
--- /dev/null
+++ b/libmariadb/libmariadb/secure/gnutls_crypt.c
@@ -0,0 +1,77 @@
+/*
+    Copyright (C) 2018 MariaDB Corporation AB
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not see <http://www.gnu.org/licenses>
+   or write to the Free Software Foundation, Inc.,
+   51 Franklin St., Fifth Floor, Boston, MA 02110, USA
+*/
+#include <ma_crypt.h>
+#include <gnutls/gnutls.h>
+#include <gnutls/crypto.h>
+
+static gnutls_digest_algorithm_t ma_hash_get_algorithm(unsigned int alg)
+{
+  switch(alg)
+  {
+  case MA_HASH_MD5:
+    return GNUTLS_DIG_MD5;
+  case MA_HASH_SHA1:
+    return GNUTLS_DIG_SHA1;
+  case MA_HASH_SHA256:
+    return GNUTLS_DIG_SHA256;
+  case MA_HASH_SHA384:
+    return GNUTLS_DIG_SHA384;
+  case MA_HASH_SHA512:
+    return GNUTLS_DIG_SHA512;
+  case MA_HASH_RIPEMD160:
+    return GNUTLS_DIG_RMD160;
+  default:
+    return GNUTLS_DIG_UNKNOWN;
+  }
+}
+
+MA_HASH_CTX *ma_hash_new(unsigned int algorithm)
+{
+  gnutls_hash_hd_t ctx= NULL;
+  gnutls_digest_algorithm_t hash_alg= ma_hash_get_algorithm(algorithm);
+
+  /* unknown or unsupported hash algorithm */
+  if (hash_alg == GNUTLS_DIG_UNKNOWN)
+    return NULL;
+
+  if (gnutls_hash_init(&ctx, hash_alg) < 0)
+    return NULL;
+
+  return (MA_HASH_CTX *)ctx;
+}
+
+void ma_hash_free(MA_HASH_CTX *ctx)
+{
+  if (ctx)
+    gnutls_hash_deinit((gnutls_hash_hd_t)ctx, NULL);
+}
+
+void ma_hash_input(MA_HASH_CTX *ctx,
+                    const unsigned char *buffer,
+                    size_t len)
+{
+  gnutls_hash((gnutls_hash_hd_t)ctx, (const void *)buffer, len);
+}
+
+void ma_hash_result(MA_HASH_CTX *ctx, unsigned char *digest)
+{
+  gnutls_hash_output((gnutls_hash_hd_t)ctx, digest);
+}
+
+