Added support for SCRAM-SHA-1, SCRAM-SHA-256 and SCRAM-SHA-512

src/common/scram.h

@@ -0,0 +1,51 @@
+/* HexChat
+ * Copyright (C) 2023 Patrick Okraku
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+#ifndef HEXCHAT_SCRAM_H
+#define HEXCHAT_SCRAM_H
+
+#include "config.h"
+#ifdef USE_OPENSSL
+#include <openssl/evp.h>
+
+typedef struct
+{
+	const EVP_MD *digest;
+	size_t digest_size;
+	char *username;
+	char *password;
+	char *client_nonce_b64;
+	char *client_first_message_bare;
+	unsigned char *salted_password;
+	char *auth_message;
+	char *error;
+	int step;
+} scram_session;
+
+typedef enum
+{
+	SCRAM_ERROR = 0,
+	SCRAM_IN_PROGRESS,
+	SCRAM_SUCCESS
+} scram_status;
+
+scram_session *scram_create_session (const char *digset, const char *username, const char *password);
+void scram_free_session (scram_session *session);
+scram_status scram_process (scram_session *session, const char *input, char **output, size_t *output_len);
+
+#endif
+#endif