diff --git a/gnupg-2.0.25-file-is-digest.patch b/gnupg-2.0.25-file-is-digest.patch
new file mode 100644
index 0000000..dda2635
--- /dev/null
+++ b/gnupg-2.0.25-file-is-digest.patch
@@ -0,0 +1,173 @@
+diff -up gnupg-2.0.25/g10/gpg.c.file-is-digest gnupg-2.0.25/g10/gpg.c
+--- gnupg-2.0.25/g10/gpg.c.file-is-digest	2014-08-05 16:46:28.865869320 +0200
++++ gnupg-2.0.25/g10/gpg.c	2014-08-05 16:49:27.520063937 +0200
+@@ -345,6 +345,7 @@ enum cmd_and_opt_values
+     oTTYtype,
+     oLCctype,
+     oLCmessages,
++    oFileIsDigest,
+     oXauthority,
+     oGroup,
+     oUnGroup,
+@@ -711,6 +712,7 @@ static ARGPARSE_OPTS opts[] = {
+   ARGPARSE_s_s (oPersonalDigestPreferences, "personal-digest-preferences","@"),
+   ARGPARSE_s_s (oPersonalCompressPreferences,
+                                          "personal-compress-preferences", "@"),
++  ARGPARSE_s_n (oFileIsDigest, "file-is-digest", "@"),
+ 
+   /* Aliases.  I constantly mistype these, and assume other people do
+      as well. */
+@@ -2003,6 +2005,7 @@ main (int argc, char **argv)
+     set_homedir ( default_homedir () );
+     opt.passphrase_repeat=1;
+     opt.emit_version = 1; /* Limit to the major number.  */
++    opt.file_is_digest=0;
+ 
+     opt.list_options   |= LIST_SHOW_UID_VALIDITY;
+     opt.verify_options |= LIST_SHOW_UID_VALIDITY;
+@@ -2493,6 +2496,7 @@ main (int argc, char **argv)
+ 	  case oPhotoViewer: opt.photo_viewer = pargs.r.ret_str; break;
+ 	  case oForceV3Sigs: opt.force_v3_sigs = 1; break;
+ 	  case oNoForceV3Sigs: opt.force_v3_sigs = 0; break;
++	  case oFileIsDigest: opt.file_is_digest = 1; break;
+           case oForceV4Certs: opt.force_v4_certs = 1; break;
+           case oNoForceV4Certs: opt.force_v4_certs = 0; break;
+ 	  case oForceMDC: opt.force_mdc = 1; break;
+diff -up gnupg-2.0.25/g10/options.h.file-is-digest gnupg-2.0.25/g10/options.h
+--- gnupg-2.0.25/g10/options.h.file-is-digest	2014-06-30 17:28:52.000000000 +0200
++++ gnupg-2.0.25/g10/options.h	2014-08-05 16:46:28.869869414 +0200
+@@ -198,6 +198,7 @@ struct
+   int no_auto_check_trustdb;
+   int preserve_permissions;
+   int no_homedir_creation;
++  int file_is_digest;
+   struct groupitem *grouplist;
+   int mangle_dos_filenames;
+   int enable_progress_filter;
+diff -up gnupg-2.0.25/g10/sign.c.file-is-digest gnupg-2.0.25/g10/sign.c
+--- gnupg-2.0.25/g10/sign.c.file-is-digest	2014-06-30 17:28:52.000000000 +0200
++++ gnupg-2.0.25/g10/sign.c	2014-08-05 16:46:28.870869438 +0200
+@@ -665,8 +665,12 @@ write_signature_packets (SK_LIST sk_list
+             mk_notation_policy_etc (sig, NULL, sk);
+           }
+ 
++	if (!opt.file_is_digest) {
+         hash_sigversion_to_magic (md, sig);
+ 	gcry_md_final (md);
++	} else if (sig->version >= 4) {
++	    log_bug("file-is-digest doesn't work with v4 sigs\n");
++	}
+ 
+ 	rc = do_sign( sk, sig, md, hash_for (sk) );
+ 	gcry_md_close (md);
+@@ -723,6 +727,8 @@ sign_file( strlist_t filenames, int deta
+     SK_LIST sk_rover = NULL;
+     int multifile = 0;
+     u32 duration=0;
++    int sigclass = 0x00;
++    u32 timestamp = 0;
+ 
+     pfx = new_progress_context ();
+     afx = new_armor_context ();
+@@ -739,7 +745,16 @@ sign_file( strlist_t filenames, int deta
+ 	fname = NULL;
+ 
+     if( fname && filenames->next && (!detached || encryptflag) )
+-	log_bug("multiple files can only be detached signed");
++	log_bug("multiple files can only be detached signed\n");
++
++    if (opt.file_is_digest && (multifile || !fname))
++	log_bug("file-is-digest only works with one file\n");
++    if (opt.file_is_digest && !detached)
++	log_bug("file-is-digest can only write detached signatures\n");
++    if (opt.file_is_digest && !opt.def_digest_algo)
++	log_bug("file-is-digest needs --digest-algo\n");
++    if (opt.file_is_digest && opt.textmode)
++	log_bug("file-is-digest doesn't work with --textmode\n");
+ 
+     if(encryptflag==2
+        && (rc=setup_symkey(&efx.symkey_s2k,&efx.symkey_dek)))
+@@ -767,7 +782,7 @@ sign_file( strlist_t filenames, int deta
+       goto leave;
+ 
+     /* prepare iobufs */
+-    if( multifile )  /* have list of filenames */
++    if( multifile || opt.file_is_digest)  /* have list of filenames */
+ 	inp = NULL; /* we do it later */
+     else {
+       inp = iobuf_open(fname);
+@@ -900,7 +915,7 @@ sign_file( strlist_t filenames, int deta
+ 	gcry_md_enable (mfx.md, hash_for(sk));
+     }
+ 
+-    if( !multifile )
++    if( !multifile && !opt.file_is_digest )
+ 	iobuf_push_filter( inp, md_filter, &mfx );
+ 
+     if( detached && !encryptflag && !RFC1991 )
+@@ -955,6 +970,8 @@ sign_file( strlist_t filenames, int deta
+ 
+     write_status_begin_signing (mfx.md);
+ 
++    sigclass = opt.textmode && !outfile? 0x01 : 0x00;
++
+     /* Setup the inner packet. */
+     if( detached ) {
+ 	if( multifile ) {
+@@ -995,6 +1012,45 @@ sign_file( strlist_t filenames, int deta
+ 	    if( opt.verbose )
+ 		putc( '\n', stderr );
+ 	}
++	else if (opt.file_is_digest) {
++	    byte *mdb, ts[5];
++	    size_t mdlen;
++	    const char *fp;
++	    int c, d;
++
++	    gcry_md_final(mfx.md);
++	    /* this assumes gcry_md_read returns the same buffer */
++	    mdb = gcry_md_read(mfx.md, opt.def_digest_algo);
++		mdlen = gcry_md_get_algo_dlen(opt.def_digest_algo);
++	    if (strlen(fname) != mdlen * 2 + 11)
++	        log_bug("digests must be %zu + @ + 5 bytes\n", mdlen);
++	    d = -1;
++	    for (fp = fname ; *fp; ) {
++		c = *fp++;
++		if (c >= '0' && c <= '9')
++		    c -= '0';
++		else if (c >= 'a' && c <= 'f')
++		    c -= 'a' - 10;
++		else if (c >= 'A' && c <= 'F')
++		    c -= 'A' - 10;
++		else
++		    log_bug("filename is not hex\n");
++		if (d >= 0) {
++		    *mdb++ = d << 4 | c;
++		    c = -1;
++		    if (--mdlen == 0) {
++			mdb = ts;
++			if (*fp++ != '@')
++			    log_bug("missing time separator\n");
++		    }
++		}
++		d = c;
++	    }
++	    sigclass = ts[0];
++	    if (sigclass != 0x00 && sigclass != 0x01)
++		log_bug("bad cipher class\n");
++	    timestamp = buffer_to_u32(ts + 1);
++	}
+ 	else {
+ 	    /* read, so that the filter can calculate the digest */
+ 	    while( iobuf_get(inp) != -1 )
+@@ -1012,8 +1068,8 @@ sign_file( strlist_t filenames, int deta
+ 
+     /* write the signatures */
+     rc = write_signature_packets (sk_list, out, mfx.md,
+-                                  opt.textmode && !outfile? 0x01 : 0x00,
+-				  0, duration, detached ? 'D':'S');
++                                  sigclass,
++				  timestamp, duration, detached ? 'D':'S');
+     if( rc )
+         goto leave;
+ 
diff --git a/gnupg2.spec b/gnupg2.spec
index 544d248..d84da8f 100644
--- a/gnupg2.spec
+++ b/gnupg2.spec
@@ -11,6 +11,8 @@ Source1: ftp://ftp.gnupg.org/gcrypt/%{?pre:alpha/}gnupg/gnupg-%{version}%{?pre}.
 #Source0: gnupg2-20090809svn.tar.bz2
 Patch1:  gnupg-2.0.20-insttools.patch
 Patch3:  gnupg-2.0.20-secmem.patch
+# non-upstreamable patch adding file-is-digest option needed for Copr
+Patch4:  gnupg-2.0.25-file-is-digest.patch
 Patch5:  gnupg-2.0.20-ocsp-keyusage.patch
 Patch6:  gnupg-2.0.19-fips-algo.patch
 
@@ -76,6 +78,7 @@ to the base GnuPG package
 %patch1 -p1 -b .insttools
 %endif
 %patch3 -p1 -b .secmem
+%patch4 -p1 -b .file-is-digest
 %patch5 -p1 -b .keyusage
 %patch6 -p1 -b .fips
 
@@ -193,6 +196,7 @@ fi
 %changelog
 * Tue Aug  5 2014 Tomáš Mráz <tmraz@redhat.com> - 2.0.25-1
 - new upstream release fixing a minor regression introduced by the previous one
+- add --file-is-digest option needed for copr
 
 * Wed Jun 25 2014 Tomáš Mráz <tmraz@redhat.com> - 2.0.24-1
 - new upstream release fixing CVE-2014-4617