From 63104f0716dc2d60842f19fc145ea4bcb096292d Mon Sep 17 00:00:00 2001
From: Thomas Schmucker <ts@its1.de>
Date: Mon, 6 Jul 2026 23:20:17 +0200
Subject: initial commit

---
 .gitignore        |  2 ++
 argon-test.c      | 39 +++++++++++++++++++++++++++++++++++++++
 compile_flags.txt |  6 ++++++
 makefile          | 14 ++++++++++++++
 4 files changed, 61 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 argon-test.c
 create mode 100644 compile_flags.txt
 create mode 100644 makefile

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..d8cf8ef
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+argon-test
+argon-test.o
diff --git a/argon-test.c b/argon-test.c
new file mode 100644
index 0000000..cd2dcff
--- /dev/null
+++ b/argon-test.c
@@ -0,0 +1,39 @@
+// Standard C
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+
+// PW-Hashing
+#include <argon2.h>
+
+int
+main(void)
+{
+	const char pwd[] = "Hallo Welt";
+	char salt[24];
+	uint32_t t_cost = 20;
+	uint32_t m_cost = 1600;
+	uint32_t parallelism = 4;
+	uint32_t hashlength = 24;
+	char encoded[256] = { 0 };
+
+	arc4random_buf(salt, sizeof salt);
+	int res = argon2id_hash_encoded(t_cost, m_cost, parallelism, pwd, strlen(pwd), salt, sizeof salt, hashlength, encoded, sizeof encoded);
+	if ( res == ARGON2_OK ) {
+		printf("hash: %s\n", encoded);
+
+		res = argon2id_verify(encoded, "Hallo Welt", 10);
+		if ( res == ARGON2_OK ) {
+			puts("Alles OK!");
+		}
+		else {
+			fprintf(stderr, "Error: %s\n", argon2_error_message(res));
+		}
+	}
+	else {
+		fprintf(stderr, "Error: %s\n", argon2_error_message(res));
+	}
+
+	return EXIT_SUCCESS;
+}
diff --git a/compile_flags.txt b/compile_flags.txt
new file mode 100644
index 0000000..ac8ad67
--- /dev/null
+++ b/compile_flags.txt
@@ -0,0 +1,6 @@
+-Wall
+-Werror
+-std=c99
+-pedantic
+-g
+-I/usr/local/include
diff --git a/makefile b/makefile
new file mode 100644
index 0000000..ff2440a
--- /dev/null
+++ b/makefile
@@ -0,0 +1,14 @@
+.PHONY: clean all
+
+all: argon-test
+
+CFLAGS =-Wall -Werror -std=c99 -pedantic -g
+
+argon-test: argon-test.o
+	cc $(LDFLAGS) argon-test.o -largon2 -o $@
+
+argon-test.o: argon-test.c
+	cc $(CFLAGS) -c $< -o $@
+
+clean:
+	rm -f argon-test.o argon-test
-- 
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