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gnupg/tests/tpm2dtests/longpassphrase.scm
James Bottomley 6720f1343a
tpm2d: add tests for the tpm2daemon
* configure.ac: Detect TPM emulator and enable tests.
* tests/tpm2dtests/: New test suite.
* tests/Makefile.am: Run tests.

--
Add a set of tests that exercise tpm2daemon handling of keys and
verify compatibility with non-tpm based keys.

Running this test infrastructure requires a tpm emulator, which is
tested for during configuration.  If an emulator is not found, the
tests won't be run since they require the presence of a TPM (although
the TPM handling code will still be built).

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

- Fixed tests/Makefile.am for make distcheck.

Signed-off-by: Werner Koch <wk@gnupg.org>
2021-03-10 14:29:50 +01:00

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#!/usr/bin/env gpgscm
;; Copyright (C) 2021 James.Bottomley@HansenPartnership.com
;;
;; SPDX-License-Identifier: GPL-3.0-or-later
;;
(load (in-srcdir "tests" "tpm2dtests" "defs.scm"))
(setup-environment)
;;
;; Check that a key with a long passphrase can be created and check
;; the passphrase can be truncated and still work
;;
(define name "ecc <ecc@example.com>")
(define name1 "ecc1 <ecc1@example.com>")
(define algo "nistp256")
(setenv "PINENTRY_USER_DATA" "this is a password longer than the TPM max of the name algorithm (i.e. 32)" #t)
(quick-gen name algo)
(setenv "PINENTRY_USER_DATA" "this is a password longer than the TPM max of the name" #t)
(check-sig name)
;; exactly the TPM limit (sha256 hash name algorithm: 32)
(setenv "PINENTRY_USER_DATA" "12345678901234567890123456789012" #t)
(quick-gen name1 algo)
(info "checking TPM signing failure with truncated passphrase")
;; passphrase one character shorter, should fail with bad passphrase
(setenv "PINENTRY_USER_DATA" "1234567890123456789012345678901" #t)
(let ((result (call-with-io `(,@GPG --default-key ,name1 --sign msg.txt) "")))
(if (= 0 (:retcode result))
(throw "Signing Key succeeded with wrong passphrase")
(unless (string-contains? (:stderr result) "Bad passphrase")
(throw "Unexpected signing error:" (:stderr result)))))