* asschk.c: Added some new features.

* runtest, inittests: New.
* text-1.txt, text-2.txt, text-3.txt: New.
* text-1.osig.pem, text-1.dsig.pem, text-1.osig-bad.pem: New.
* text-2.osig.pem, text-2.osig-bad.pem: New.
* samplekeys : New directory
* sm-verify, sm-sign+verify: The first test scripts.

tests/ChangeLog

@@ -1,3 +1,13 @@
+2002-08-08  Werner Koch  <wk@gnupg.org>
+
+	* asschk.c: Added some new features.
+	* runtest, inittests: New.
+	* text-1.txt, text-2.txt, text-3.txt: New.
+	* text-1.osig.pem, text-1.dsig.pem, text-1.osig-bad.pem: New.
+	* text-2.osig.pem, text-2.osig-bad.pem: New.
+	* samplekeys : New directory
+	* sm-verify, sm-sign+verify: The first test scripts.
+
 2002-08-06  Werner Koch  <wk@gnupg.org>
 
 	* Makefile.am, asschk.c: New.

tests/Makefile.am

@@ -19,15 +19,38 @@
 
 ## Process this file with automake to produce Makefile.in
 
-TESTS_ENVIRONMENT = 
+GPGSM = ../sm/gpgsm
 
-EXTRA_DIST =
+# We can't unset a variable here so we unset GPG_AGENT_INFO in runtest
+TESTS_ENVIRONMENT = GNUPGHOME=`pwd` LC_ALL=C GPGSM=${GPGSM} ./runtest
 
-TESTS = 
+EXTRA_DIST = runtest inittests \
+	     text-1.txt text-2.txt text-3.txt \
+	     text-1.osig.pem text-1.dsig.pem text-1.osig-bad.pem \
+	     text-2.osig.pem text-2.osig-bad.pem
 
-noinst_PROGRAMS = asschk $(TESTS) 
+TESTS = sm-sign+verify sm-verify
+
+CLEANFILES = inittests.stamp x y y z out err 
+	     *.lock .\#lk* 
+
+DISTCLEANFILES = keyring.kbx~ random_seed
+
+noinst_PROGRAMS = asschk
 
 asschk_SOURCES = asschk.c
 
 
+all-local: inittests.stamp
+
+clean-local:
+	$(TESTS_ENVIRONMENT) $(srcdir)/inittests --clean
+
+inittests.stamp: inittests
+	$(TESTS_ENVIRONMENT) $(srcdir)/inittests
+	echo timestamp >./inittests.stamp
+
+
+
+
 

tests/asschk.c

@@ -65,9 +65,8 @@
       Create file FILENAME, open for write access and retrun the file
       descriptor.
 
-   pipeserver [<path>]
-      Connect to an Assuan server with name PATH.  If PATH is not
-      specified the value ../sm/gpgsm is used.
+   pipeserver <program>
+      Connect to the Assuan server PROGRAM.
 
    send <line>
       Send LINE to the server.
@@ -80,6 +79,10 @@
       Expect an ERR response from the server.  Status and data out put
       is ignored.
 
+   count-status <code>
+      Initialize the assigned variable to 0 and assign it as an counter for 
+      status code CODE.  This command must be called with an assignment.
+
    quit
       Terminate the process.
 
@@ -112,6 +115,8 @@
 
 #define spacep(p) (*(p) == ' ' || *(p) == '\t')
 
+#define MAX_LINELEN 2048
+
 typedef enum {
   LINE_OK = 0,
   LINE_ERR,
@@ -120,17 +125,23 @@ typedef enum {
   LINE_END,
 } LINETYPE;
 
+typedef enum {
+  VARTYPE_SIMPLE = 0,
+  VARTYPE_FD,
+  VARTYPE_COUNTER
+} VARTYPE;
+
 
 struct variable_s {
   struct variable_s *next;
-  int is_fd;
+  VARTYPE type;
+  unsigned int count;
   char *value;
   char name[1];
 };
 typedef struct variable_s *VARIABLE;
 
 
-
 static void die (const char *format, ...)  ATTR_PRINTF(1,2);
 
 
@@ -140,6 +151,9 @@ static const char *invocation_name;
 /* Talk a bit about what is going on. */
 static int opt_verbose;
 
+/* Option to ignore the echo command. */
+static int opt_no_echo;
+
 /* File descriptors used to communicate with the current server. */
 static int server_send_fd = -1;
 static int server_recv_fd = -1;
@@ -147,7 +161,7 @@ static int server_recv_fd = -1;
 /* The Assuan protocol limits the line length to 1024, so we can
    safely use a (larger) buffer.  The buffer is filled using the
    read_assuan(). */
-static char recv_line[2048];
+static char recv_line[MAX_LINELEN];
 /* Tell the status of the current line. */
 static LINETYPE recv_type;
 
@@ -245,6 +259,8 @@ writen (int fd, const char *buffer, size_t length)
 static char *
 read_assuan (int fd)
 {
+  static char pending[MAX_LINELEN];
+  static size_t pending_len;
   size_t nleft = sizeof recv_line;
   char *buf = recv_line;
   char *p;
@@ -252,7 +268,18 @@ read_assuan (int fd)
 
   while (nleft > 0)
     {
-      int n = read (fd, buf, nleft);
+      int n;
+
+      if (pending_len)
+        {
+          if (pending_len >= nleft)
+            die ("received line too large");
+          memcpy (buf, pending, pending_len);
+          n = pending_len;
+          pending_len = 0;
+        }
+      else
+        n = read (fd, buf, nleft);
       if (n < 0)
         {
           if (errno == EINTR)
@@ -270,7 +297,12 @@ read_assuan (int fd)
         ;
       if (n)
         {
-          /* fixme: keep pending bytes for next read. */
+          if (n>1)
+            {
+              n--;
+              memcpy (pending, p+1, n);
+              pending_len = n;
+            }
           break;
         }
     }
@@ -375,6 +407,15 @@ start_server (const char *pgmname)
               die ("dup2 failed in child: %s", strerror (errno));
           close (rp[1]);
         }
+      if (!opt_verbose)
+        {
+	  int fd = open ("/dev/null", O_WRONLY);
+	  if (fd == -1)
+	    die ("can't open `/dev/null': %s", strerror (errno));
+          if (dup2 (fd, STDERR_FILENO) == -1)
+            die ("dup2 failed in child: %s", strerror (errno));
+	  close (fd);
+        }
 
       execl (pgmname, arg0, "--server", NULL); 
       die ("exec failed for `%s': %s", pgmname, strerror (errno));
@@ -406,7 +447,7 @@ unset_var (const char *name)
     return;
 /*    fprintf (stderr, "unsetting `%s'\n", name); */
 
-  if (var->is_fd && var->value)
+  if (var->type == VARTYPE_FD && var->value)
     {
       int fd;
 
@@ -417,12 +458,13 @@ unset_var (const char *name)
 
   free (var->value);
   var->value = NULL;
-  var->is_fd = 0;
+  var->type = 0;
+  var->count = 0;
 }
 
 
 static void
-set_fd_var (const char *name, const char *value, int is_fd)
+set_type_var (const char *name, const char *value, VARTYPE type)
 {
   VARIABLE var;
 
@@ -440,7 +482,7 @@ set_fd_var (const char *name, const char *value, int is_fd)
   else
     free (var->value);
 
-  if (var->is_fd && var->value)
+  if (var->type == VARTYPE_FD && var->value)
     {
       int fd;
 
@@ -449,16 +491,22 @@ set_fd_var (const char *name, const char *value, int is_fd)
           close (fd);
     }
   
-  var->is_fd = is_fd;
+  var->type = type;
+  var->count = 0;
+  if (var->type == VARTYPE_COUNTER)
+    {
+      /* We need some extra sapce as scratch area for get_var. */
+      var->value = xmalloc (strlen (value) + 1 + 20);
+      strcpy (var->value, value);
+    }
+  else
     var->value = xstrdup (value);
-/*    fprintf (stderr, "setting `%s' to `%s'\n", var->name, var->value); */
-
 }
 
 static void
 set_var (const char *name, const char *value)
 {
-  set_fd_var (name, value, 0);
+  set_type_var (name, value, 0);
 }
 
 
@@ -469,10 +517,35 @@ get_var (const char *name)
 
   for (var=variable_list; var && strcmp (var->name, name); var = var->next)
     ;
-  return var? var->value:NULL;
+  if (!var)
+    return NULL;
+  if (var->type == VARTYPE_COUNTER && var->value)
+    { /* Use the scratch space allocated by set_var. */
+      char *p = var->value + strlen(var->value)+1;
+      sprintf (p, "%u", var->count);
+      return p;
+    }
+  else
+    return var->value;
 }
 
 
+/* Incremente all counter type variables with NAME in their VALUE. */
+static void
+inc_counter (const char *name)
+{
+  VARIABLE var;
+
+  if (!*name)
+    return;
+  for (var=variable_list; var; var = var->next)
+    {
+      if (var->type == VARTYPE_COUNTER
+          && var->value && !strcmp (var->value, name))
+        var->count++;
+    }
+}
+
 
 /* Expand variables in LINE and return a new allocated buffer if
    required.  The function might modify LINE if the expanded version
@@ -568,6 +641,7 @@ cmd_let (const char *assign_to, char *arg)
 static void
 cmd_echo (const char *assign_to, char *arg)
 {
+  if (!opt_no_echo)
     printf ("%s\n", arg);
 }
 
@@ -579,6 +653,24 @@ cmd_send (const char *assign_to, char *arg)
   write_assuan (server_send_fd, arg); 
 }
 
+static void
+handle_status_line (char *arg)
+{
+  char *p;
+
+  for (p=arg; *p && !spacep (p); p++)
+    ;
+  if (*p)
+    {
+      int save = *p;
+      *p = 0;
+      inc_counter (arg);
+      *p = save;
+    }
+  else
+    inc_counter (arg);
+}
+
 static void
 cmd_expect_ok (const char *assign_to, char *arg)
 {
@@ -586,9 +678,11 @@ cmd_expect_ok (const char *assign_to, char *arg)
     fprintf (stderr, "expecting OK\n");
   do
     {
-      read_assuan (server_recv_fd);
-      if (opt_verbose)
+      char *p = read_assuan (server_recv_fd);
+      if (opt_verbose > 1)
         fprintf (stderr, "got line `%s'\n", recv_line);
+      if (recv_type == LINE_STAT)
+        handle_status_line (p);
     }
   while (recv_type != LINE_OK && recv_type != LINE_ERR);
   if (recv_type != LINE_OK)
@@ -602,15 +696,37 @@ cmd_expect_err (const char *assign_to, char *arg)
     fprintf (stderr, "expecting ERR\n");
   do
     {
-      read_assuan (server_recv_fd);
-      if (opt_verbose)
+      char *p = read_assuan (server_recv_fd);
+      if (opt_verbose > 1)
         fprintf (stderr, "got line `%s'\n", recv_line);
+      if (recv_type == LINE_STAT)
+        handle_status_line (p);
     }
   while (recv_type != LINE_OK && recv_type != LINE_ERR);
   if (recv_type != LINE_ERR)
     die ("expected ERR but got `%s'", recv_line);
 }
 
+static void
+cmd_count_status (const char *assign_to, char *arg)
+{
+  char *p;
+
+  if (!*assign_to || !*arg)
+    die ("syntax error: count-status requires an argument and a variable");
+
+  for (p=arg; *p && !spacep (p); p++)
+    ;
+  if (*p)
+    {
+      for (*p++ = 0; spacep (p); p++)
+        ;
+      if (*p)
+        die ("cmpfiles: syntax error");
+    }
+  set_type_var (assign_to, arg, VARTYPE_COUNTER);
+}
+
 static void
 cmd_openfile (const char *assign_to, char *arg)
 {
@@ -624,7 +740,7 @@ cmd_openfile (const char *assign_to, char *arg)
     die ("error opening `%s': %s", arg, strerror (errno));
   
   sprintf (numbuf, "%d", fd);
-  set_fd_var (assign_to, numbuf, 1);
+  set_type_var (assign_to, numbuf, VARTYPE_FD);
 }
 
 static void
@@ -640,7 +756,7 @@ cmd_createfile (const char *assign_to, char *arg)
     die ("error creating `%s': %s", arg, strerror (errno));
 
   sprintf (numbuf, "%d", fd);
-  set_fd_var (assign_to, numbuf, 1);
+  set_type_var (assign_to, numbuf, VARTYPE_FD);
 }
 
 
@@ -648,7 +764,7 @@ static void
 cmd_pipeserver (const char *assign_to, char *arg)
 {
   if (!*arg)
-    arg = "../sm/gpgsm";
+    die ("syntax error: servername missing");
 
   start_server (arg);
 }
@@ -751,6 +867,7 @@ interpreter (char *line)
     { "send"      , cmd_send },
     { "expect-ok" , cmd_expect_ok },
     { "expect-err", cmd_expect_err },
+    { "count-status", cmd_count_status },
     { "openfile"  , cmd_openfile },
     { "createfile", cmd_createfile },
     { "pipeserver", cmd_pipeserver },
@@ -783,7 +900,6 @@ interpreter (char *line)
           return 0; /* empty or comment */
         }
     }
-
   for (p=line; *p && !spacep (p) && *p != '='; p++)
     ;
   if (*p == '=')
@@ -871,7 +987,9 @@ main (int argc, char **argv)
       if (*p != '-')
         break;
       if (!strcmp (p, "--verbose"))
-        opt_verbose = 1;
+        opt_verbose++;
+      else if (!strcmp (p, "--no-echo"))
+        opt_no_echo++;
       else if (*p == '-' && p[1] == 'D')
         {
           p += 2;

tests/inittests

@@ -0,0 +1,89 @@
+#!/bin/sh
+#     	Copyright (C) 2002 Free Software Foundation, Inc.
+#
+# This file is free software; as a special exception the author gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+#
+# This file is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+set -e
+
+sample_cert='
+cert_g10code_test1.pem
+cert_g10code_pete1.pem
+cert_g10code_theo1.pem
+'
+
+private_keys='
+32100C27173EF6E9C4E9A25D3D69F86D37A4F939
+'
+
+clean_files='
+gpgsm.conf gpg-agent.conf trustlist.txt keyring.kbx
+msg msg.sig msg.unsig
+'
+
+
+[ -z "$srcdir" ] && srcdir=.
+[ -z "$GPGSM" ] && GPGSM=../sm/gpgsm
+
+if [ -d $srcdir/samplekeys ] \
+   && grep TESTS_ENVIRONMENT Makefile >/dev/null 2>&1; then
+ :
+else
+    echo "inittests: please cd to the tests directory first" >&2
+    exit 1
+fi
+
+if [ "$1" = "--clean" ]; then
+    if [ -d private-keys-v1.d ]; then
+       rm private-keys-v1.d/* 2>/dev/null || true
+       rmdir private-keys-v1.d
+    fi
+    rm ${clean_files} 2>/dev/null || true
+    exit 0
+fi
+
+if [ "$GNUPGHOME" != "`pwd`" ]; then
+    echo "inittests: please set GNUPGHOME to the test directory" >&2
+    exit 1
+fi
+
+if [ -n "$GPG_AGENT_INFO" ]; then
+    echo "inittests: please unset GPG_AGENT_INFO" >&2
+    exit 1
+fi
+
+
+
+# Create the private key directy if it does not exists and copy 
+# the sample keys.
+[ -d private-keys-v1.d ] || mkdir private-keys-v1.d
+for i in ${private_keys}; do 
+    cp ${srcdir}/samplekeys/$i.key private-keys-v1.d/$i.key
+done
+
+# Create the configuration scripts
+cat > gpgsm.conf <<EOF
+no-secmem-warning
+disable-crl-checks
+agent-program ../agent/gpg-agent
+EOF
+
+cat > gpg-agent.conf <<EOF
+no-grab
+pinentry-program /home/wk/work/pinentry/gtk/pinentry-gtk
+EOF
+
+cat > trustlist.txt <<EOF
+# CN=test cert 1,OU=Aegypten Project,O=g10 Code GmbH,L=Düsseldorf,C=DE
+3CF405464F66ED4A7DF45BBDD1E4282E33BDB76E S
+EOF
+
+# Make sure that the sample certs are available
+for i in ${sample_certs}; do 
+    $GPGSM --import ${srcdir}/samplekeys/$i.pem 
+done

tests/runtest

@@ -0,0 +1,5 @@
+#!/bin/sh
+unset GPG_AGENT_INFO
+[ -x "$1" ] && exec "$1"
+exec ./asschk --no-echo -DGPGSM=${GPGSM} <"$1"
+

tests/samplekeys/32100C27173EF6E9C4E9A25D3D69F86D37A4F939.key

@@ -0,0 +1,18 @@
+(private-key
+ (oid.1.2.840.113549.1.1.1
+  (n #00e0ce96f90b6c9e02f3922beada93fe50a875eac6bcc18bb9a9cf2e84965caa2d1ff95a7f542465c6c0c19d276e4526ce048868a7a914fd343cc3a87dd74291ffc565506d5bbb25cbac6a0e2dd1f8bcaab0d4a29c2f37c950f363484bf269f7891440464baf79827e03a36e70b814938eebdc63e964247be75dc58b014b7ea251#)
+  (e #010001#)
+  (d #046129F2489D71579BE0A75FE029BD6CDB574EBF57EA8A5B0FDA942CAB943B117D7BB95E5D28875E0F9FC5FCC06A72F6D502464DABDED78EF6B716177B83D5BDC543DC5D3FED932E59F5897E92E6F58A0F33424106A3B6FA2CBF877510E4AC21C3EE47851E97D12996222AC3566D4CCB0B83D164074ABF7DE655FC2446DA1781#)
+  (p #00e861b700e17e8afe6837e7512e35b6ca11d0ae47d8b85161c67baf64377213fe52d772f2035b3ca830af41d8a4120e1c1c70d12cc22f00d28d31dd48a8d424f1#)
+  (q #00f7a7ca5367c661f8e62df34f0d05c10c88e5492348dd7bddc942c9a8f369f935a07785d2db805215ed786e4285df1658eed3ce84f469b81b50d358407b4ad361#)
+  (u #304559a9ead56d2309d203811a641bb1a09626bc8eb36fffa23c968ec5bd891eebbafc73ae666e01ba7c8990bae06cc2bbe10b75e69fcacb353a6473079d8e9b#)
+ )
+)
+
+
+
+
+
+
+
+

tests/sm-sign+verify

@@ -1,15 +1,16 @@
 # sm-sign+verify 
 #
-# Requirements: a plain file "msg" and standard key setup
+# Creating a signature and verifying it
+# Requirements: a plain file "text-1.txt" 
 
-echo Creating a signature and verifying it
+plaintext = text-1.txt
 
-in  = openfile msg
+in  = openfile $plaintext
 out = createfile msg.sig
 in2 = openfile msg.sig
 out2 = createfile msg.unsig
 
-pipeserver /usr/local/bin/gpgsm
+pipeserver $GPGSM
 send INPUT FD=$in
 expect-ok
 send OUTPUT FD=$out
@@ -23,9 +24,13 @@ send INPUT FD=$in2
 expect-ok
 send OUTPUT FD=$out2
 expect-ok
+goodsig = count-status GOODSIG
+trusted = count-status TRUST_FULLY
 send VERIFY
 expect-ok
-
+echo goodsig=$goodsig trusted=$trusted
+fail-if !$goodsig
+fail-if !$trusted
 send BYE
 expect-ok
 
@@ -35,24 +40,33 @@ out =
 in2 = 
 out2=
 
-cmpfiles msg msg.unsig
+cmpfiles $plaintext msg.unsig
 fail-if !$?
 
-# Lets check it again with a new server instance.
+# Lets check it again with a new server instance, this time we keep
+# the server running to check whether the entire message has been
+# output after the VERIFY.
 in = openfile msg.sig
 out = createfile msg.unsig
-pipeserver /usr/local/bin/gpgsm
+pipeserver $GPGSM
 send INPUT FD=$in
 expect-ok
 send OUTPUT FD=$out
 expect-ok
+goodsig = count-status GOODSIG
+trusted = count-status TRUST_FULLY
 send VERIFY
 expect-ok
+echo goodsig=$goodsig trusted=$trusted
+fail-if !$goodsig
+fail-if !$trusted
 
-cmpfiles msg msg.unsig
+cmpfiles $plaintext msg.unsig
 fail-if !$?
 
+send BYE
+expect-ok
+
 
-echo fine, it works
 quit
 

tests/sm-verify

@@ -0,0 +1,112 @@
+# sm-verify 
+#
+# Verify a few distributed signatures.
+# Requirements: 
+#
+
+# Check an opaque signature
+sig = openfile text-1.osig.pem
+out = createfile msg.unsig
+pipeserver $GPGSM
+send INPUT FD=$sig
+expect-ok
+send OUTPUT FD=$out
+expect-ok
+badsig  = count-status BADSIG
+goodsig = count-status GOODSIG
+trusted = count-status TRUST_FULLY
+send VERIFY
+expect-ok
+echo badsig=$badsig goodsig=$goodsig trusted=$trusted
+fail-if $badsig
+fail-if !$goodsig
+fail-if !$trusted
+send BYE
+expect-ok
+
+sig =
+out =
+cmpfiles text-1.txt msg.unsig
+fail-if !$?
+
+# Check a detached signature.
+sig = openfile text-1.dsig.pem
+plain = openfile text-1.txt
+pipeserver $GPGSM
+send INPUT FD=$sig
+expect-ok
+send MESSAGE FD=$plain
+expect-ok
+badsig  = count-status BADSIG
+goodsig = count-status GOODSIG
+trusted = count-status TRUST_FULLY
+send VERIFY
+expect-ok
+echo badsig=$badsig goodsig=$goodsig trusted=$trusted
+fail-if $badsig
+fail-if !$goodsig
+fail-if !$trusted
+send BYE
+expect-ok
+
+# Check a tampered opaque message
+sig = openfile text-1.osig-bad.pem
+out = createfile msg.unsig
+
+pipeserver $GPGSM
+send INPUT FD=$sig
+expect-ok
+send OUTPUT FD=$out
+expect-ok
+badsig  = count-status BADSIG
+goodsig = count-status GOODSIG
+trusted = count-status TRUST_FULLY
+send VERIFY
+expect-ok
+echo badsig=$badsig goodsig=$goodsig trusted=$trusted
+fail-if $goodsig
+fail-if !$badsig
+fail-if $trusted
+send BYE
+expect-ok
+
+# Check another opaque signature but without asking for the output.
+sig = openfile text-2.osig.pem
+
+pipeserver $GPGSM
+send INPUT FD=$sig
+expect-ok
+badsig  = count-status BADSIG
+goodsig = count-status GOODSIG
+trusted = count-status TRUST_FULLY
+send VERIFY
+expect-ok
+echo badsig=$badsig goodsig=$goodsig trusted=$trusted
+fail-if $badsig
+fail-if !$goodsig
+fail-if !$trusted
+send BYE
+expect-ok
+
+# We als have tampered version.
+sig = openfile text-2.osig-bad.pem
+
+pipeserver $GPGSM
+send INPUT FD=$sig
+expect-ok
+badsig  = count-status BADSIG
+goodsig = count-status GOODSIG
+trusted = count-status TRUST_FULLY
+send VERIFY
+expect-ok
+echo badsig=$badsig goodsig=$goodsig trusted=$trusted
+fail-if $goodsig
+fail-if !$badsig
+fail-if $trusted
+send BYE
+expect-ok
+
+
+quit
+
+

tests/text-1.dsig.pem

@@ -0,0 +1,27 @@
+-----BEGIN SIGNED MESSAGE-----
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tests/text-1.txt

@@ -0,0 +1,17 @@
+High Priest:	Armaments Chapter One, verses nine through twenty-seven:
+Bro. Maynard:	And Saint Attila raised the Holy Hand Grenade up on high
+	saying, "Oh Lord, Bless us this Holy Hand Grenade, and with it
+	smash our enemies to tiny bits."  And the Lord did grin, and the
+	people did feast upon the lambs, and stoats, and orangutans, and
+	breakfast cereals, and lima bean-
+High Priest:	Skip a bit, brother.
+Bro. Maynard:	And then the Lord spake, saying: "First, shalt thou take
+	out the holy pin.  Then shalt thou count to three.  No more, no less.
+	*Three* shall be the number of the counting, and the number of the
+	counting shall be three.  *Four* shalt thou not count, and neither
+	count thou two, excepting that thou then goest on to three.  Five is
+	RIGHT OUT.  Once the number three, being the third number be reached,
+	then lobbest thou thy Holy Hand Grenade towards thy foe, who, being
+	naughty in my sight, shall snuff it.  Amen.
+All:	Amen.
+		-- Monty Python, "The Holy Hand Grenade"

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+-----END SIGNED MESSAGE-----

tests/text-2.txt

@@ -0,0 +1,2 @@
+Military intelligence is a contradiction in terms.
+                -- Groucho Marx

tests/text-3.txt

@@ -0,0 +1,2 @@
+Military justice is to justice what military music is to music.
+		-- Groucho Marx