#!/bin/sh

# Copyright (C) 2014 Nikos Mavrogiannopoulos

#

# This file is part of GnuTLS.

#

# GnuTLS is free software; you can redistribute it and/or modify it

# under the terms of the GNU General Public License as published by the

# Free Software Foundation; either version 3 of the License, or (at

# your option) any later version.

#

# GnuTLS is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with GnuTLS; if not, write to the Free Software Foundation,

# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

#set -e

srcdir="${srcdir:-.}"

CERTTOOL="${CERTTOOL:-../../src/certtool${EXEEXT}}"

DIFF="${DIFF:-diff -b -B}"

OUTFILE=cert-pss-privkey.$$.tmp

TMPFILE=cert-pss.$$.tmp

if ! test -x "${CERTTOOL}"; then

	exit 77

fi

if ! test -z "${VALGRIND}"; then

	VALGRIND="${LIBTOOL:-libtool} --mode=execute ${VALGRIND}"

fi

for i in sha256 sha384 sha512;do

if test "${GNUTLS_FORCE_FIPS_MODE}" = 1 && test "$i" != sha384;then

	continue

fi

# Create an RSA-PSS private key, restricted to the use with RSA-PSS

${VALGRIND} "${CERTTOOL}" --generate-privkey --pkcs8 --password '' \

        --key-type rsa-pss --hash $i --outfile "$OUTFILE"

rc=$?

if test "${rc}" != "0"; then

	echo "Could not generate an RSA-PSS key ($i)"

	exit 1

fi

${VALGRIND} "${CERTTOOL}" -k --password '' --infile "$OUTFILE"

rc=$?

if test "${rc}" != "0"; then

	echo "Could not read generated an RSA-PSS key ($i)"

	exit 1

fi

# Create an RSA-PSS certificate from an RSA-PSS private key

${VALGRIND} "${CERTTOOL}" --generate-self-signed \

	--pkcs8 --load-privkey "$OUTFILE" --password '' \

	--template "${srcdir}/templates/template-test.tmpl" \

	--outfile "${TMPFILE}" --hash $i 2>/dev/null

rc=$?

if test "${rc}" != "0"; then

	echo "Could not generate an RSA-PSS certificate from an RSA-PSS key ($i)"

	exit 1

fi

# Create an RSA-PSS certificate from an RSA-PSS private key, with

# mismatched parameters

for j in sha256 sha384 sha512;do

${VALGRIND} "${CERTTOOL}" --generate-self-signed \

	--pkcs8 --load-privkey "$OUTFILE" --password '' \

	--template "${srcdir}/templates/template-test.tmpl" \

	--outfile "${TMPFILE}" --hash $j 2>/dev/null

rc=$?

if test "$j" != "$j" && "${rc}" = "0"; then

	echo "Unexpectedly succeeded to generate an RSA-PSS certificate ($j != $i)"

	exit 1

fi

done

# Create an RSA-PSS certificate from an RSA key

${VALGRIND} "${CERTTOOL}" --generate-certificate --key-type rsa-pss \

	    --load-privkey "${srcdir}/../../doc/credentials/x509/key-rsa.pem" \

	    --load-ca-privkey "${srcdir}/../../doc/credentials/x509/ca-key.pem" \

	    --load-ca-certificate "${srcdir}/../../doc/credentials/x509/ca.pem" \

	    --template "${srcdir}/templates/template-test.tmpl" \

	    --outfile "${TMPFILE}" --hash $i 2>/dev/null

rc=$?

if test "${rc}" != "0"; then

	echo "Could not generate an RSA-PSS certificate $i"

	exit 1

fi

# Create an RSA certificate from an RSA key, and sign it with RSA-PSS

${VALGRIND} "${CERTTOOL}" --generate-certificate --rsa --sign-params rsa-pss \

	    --load-privkey "${srcdir}/../../doc/credentials/x509/key-rsa.pem" \

	    --load-ca-privkey "${srcdir}/../../doc/credentials/x509/ca-key.pem" \

	    --load-ca-certificate "${srcdir}/../../doc/credentials/x509/ca.pem" \

	    --template "${srcdir}/templates/template-test.tmpl" \

	    --outfile "${TMPFILE}" --hash $i 2>/dev/null

rc=$?

if test "${rc}" != "0"; then

	echo "Could not generate an RSA-PSS certificate"

	exit 1

fi

done

# Convert an RSA-PSS key to an RSA key

#

${VALGRIND} "${CERTTOOL}" --to-rsa --infile "${srcdir}/data/key-rsa-pss.pem" --outfile ${TMPFILE}

rc=$?

if test "${rc}" != "0"; then

	echo "Could not convert an RSA-PSS certificate"

	exit 1

fi

${DIFF} "${srcdir}/data/key-rsa-pss-raw.pem" ${TMPFILE}

rc=$?

if test "${rc}" != "0"; then

	echo "RSA-PSS decoding failed"

	exit ${rc}

fi

echo "RSA-PSS to RSA conversion was successful"

export TZ="UTC"

. ${srcdir}/../scripts/common.sh

check_for_datefudge

datefudge "2012-11-22" \

${VALGRIND} "${CERTTOOL}" --verify --load-ca-certificate "${srcdir}/data/cert-rsa-pss.pem" --infile "${srcdir}/data/cert-rsa-pss.pem"

rc=$?

if test "${rc}" != "0"; then

	echo "There was an issue verifying the certificate"

	exit 1

fi

rm -f "${TMPFILE}"

exit 0