From 2c4b904165c76e4a935eb49b1fc889a9254af8cf Mon Sep 17 00:00:00 2001
From: TLINDEN <git@daemon.de>
Date: Sat, 2 Nov 2013 10:55:25 +0100
Subject: [PATCH] bugfix in encryption key computing, added new feature:
 derived public keys

---
 tests/jot        |  3 +++
 tests/pwhashes.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 57 insertions(+)
 create mode 100755 tests/jot
 create mode 100644 tests/pwhashes.c

diff --git a/tests/jot b/tests/jot
new file mode 100755
index 0000000..dbf78d9
--- /dev/null
+++ b/tests/jot
@@ -0,0 +1,3 @@
+#!/usr/bin/perl
+my $rounds = shift;
+foreach (0 .. $rounds) {print "$_\n";}
\ No newline at end of file
diff --git a/tests/pwhashes.c b/tests/pwhashes.c
new file mode 100644
index 0000000..a8239af
--- /dev/null
+++ b/tests/pwhashes.c
@@ -0,0 +1,54 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <sodium.h>
+#include <limits.h>
+
+#include "mem.h"
+#include "defines.h"
+#include "keyprint.h"
+#include "key.h"
+
+struct _pw_t {
+  char hash[65];
+  UT_hash_handle hh;
+};
+typedef struct _pw_t pw;
+
+int main() {
+  int i, t, p;
+  char *pass = ucmalloc(4);
+  unsigned char *h;
+  char tmp[65];
+  pw *item;
+  pw *list = NULL;
+  pw *have = NULL;
+
+  for(i=97; i<126; ++i) {
+    pass[0] = i;
+    pass[1] = 0;
+    h = pcp_derivekey(pass);
+
+    p =0;
+    for(t=0; t<32; ++t) {
+      sprintf(&tmp[p], "%02x", h[t]);
+      p += 2;
+    }
+
+    have = NULL;
+    HASH_FIND_STR(list, tmp, have);
+    if(have == NULL) {
+      item = ucmalloc(sizeof(pw));
+      memcpy(item->hash, tmp, 65);
+      HASH_ADD_STR( list, hash, item ); 
+    }
+    else {
+      fprintf(stderr, "Error: collision found: %s!\n", have->hash);
+      return 1;
+    }
+  }
+
+  fprintf(stderr, "ok\n");
+  return 0;
+}