1 files changed, 43 insertions, 0 deletions
diff --git a/hash.c b/hash.c
new file mode 100644
index 0000000..b4f8f6c
--- /dev/null
+++ b/hash.c
@@ -0,0 +1,43 @@
+/* $OpenBSD: hash.c,v 1.6 2019/11/29 00:11:21 djm Exp $ */
+/*
+ * Public domain. Author: Christian Weisgerber <naddy@openbsd.org>
+ * API compatible reimplementation of function from nacl
+ */
+
+#include "includes.h"
+
+#include "crypto_api.h"
+
+#include <stdarg.h>
+
+#ifdef WITH_OPENSSL
+#include <openssl/evp.h>
+
+int
+crypto_hash_sha512(unsigned char *out, const unsigned char *in,
+    unsigned long long inlen)
+{
+
+	if (!EVP_Digest(in, inlen, out, NULL, EVP_sha512(), NULL))
+		return -1;
+	return 0;
+}
+
+#else
+# ifdef HAVE_SHA2_H
+#  include <sha2.h>
+# endif
+
+int
+crypto_hash_sha512(unsigned char *out, const unsigned char *in,
+    unsigned long long inlen)
+{
+
+	SHA2_CTX ctx;
+
+	SHA512Init(&ctx);
+	SHA512Update(&ctx, in, inlen);
+	SHA512Final(out, &ctx);
+	return 0;
+}
+#endif /* WITH_OPENSSL */