1 files changed, 52 insertions, 0 deletions
diff --git a/doc/man3/DSA_do_sign.pod b/doc/man3/DSA_do_sign.pod
new file mode 100644
index 0000000000..5e56d20944
--- /dev/null
+++ b/doc/man3/DSA_do_sign.pod
@@ -0,0 +1,52 @@
+=pod
+
+=head1 NAME
+
+DSA_do_sign, DSA_do_verify - raw DSA signature operations
+
+=head1 SYNOPSIS
+
+ #include <openssl/dsa.h>
+
+ DSA_SIG *DSA_do_sign(const unsigned char *dgst, int dlen, DSA *dsa);
+
+ int DSA_do_verify(const unsigned char *dgst, int dgst_len,
+             DSA_SIG *sig, DSA *dsa);
+
+=head1 DESCRIPTION
+
+DSA_do_sign() computes a digital signature on the B<len> byte message
+digest B<dgst> using the private key B<dsa> and returns it in a
+newly allocated B<DSA_SIG> structure.
+
+L<DSA_sign_setup(3)> may be used to precompute part
+of the signing operation in case signature generation is
+time-critical.
+
+DSA_do_verify() verifies that the signature B<sig> matches a given
+message digest B<dgst> of size B<len>.  B<dsa> is the signer's public
+key.
+
+=head1 RETURN VALUES
+
+DSA_do_sign() returns the signature, NULL on error.  DSA_do_verify()
+returns 1 for a valid signature, 0 for an incorrect signature and -1
+on error. The error codes can be obtained by
+L<ERR_get_error(3)>.
+
+=head1 SEE ALSO
+
+L<dsa(3)>, L<ERR_get_error(3)>, L<rand(3)>,
+L<DSA_SIG_new(3)>,
+L<DSA_sign(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License").  You may not use
+this file except in compliance with the License.  You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut