ssh signing: make verify-tag consider key lifetime
Set the payload_type for check_signature() when calling verify-tag. Implements the same tests as for verify-commit. Signed-off-by: Fabian Stelzer <fs@gigacodes.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Fabian Stelzer committed
Dec 9, 2021 at 09:52 UTC
dd3aa418aa109ff3697290ba89b626c3a4b36883
2 files changed
+43
t/t7031-verify-tag-signed-ssh.sh
+42
index 06c9dd6c93..1cb36b9ab8 100755
--- a/t/t7031-verify-tag-signed-ssh.sh
+++ b/t/t7031-verify-tag-signed-ssh.sh
@@ -48,6 +48,23 @@ test_expect_success GPGSSH 'create signed tags ssh' '
git tag -u"${GPGSSH_KEY_UNTRUSTED}" -m eighth eighth-signed-alt
'
+test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'create signed tags with keys having defined lifetimes' '
+ test_when_finished "test_unconfig commit.gpgsign" &&
+ test_config gpg.format ssh &&
+
+ echo expired >file && test_tick && git commit -a -m expired -S"${GPGSSH_KEY_EXPIRED}" &&
+ git tag -s -u "${GPGSSH_KEY_EXPIRED}" -m expired-signed expired-signed &&
+
+ echo notyetvalid >file && test_tick && git commit -a -m notyetvalid -S"${GPGSSH_KEY_NOTYETVALID}" &&
+ git tag -s -u "${GPGSSH_KEY_NOTYETVALID}" -m notyetvalid-signed notyetvalid-signed &&
+
+ echo timeboxedvalid >file && test_tick && git commit -a -m timeboxedvalid -S"${GPGSSH_KEY_TIMEBOXEDVALID}" &&
+ git tag -s -u "${GPGSSH_KEY_TIMEBOXEDVALID}" -m timeboxedvalid-signed timeboxedvalid-signed &&
+
+ echo timeboxedinvalid >file && test_tick && git commit -a -m timeboxedinvalid -S"${GPGSSH_KEY_TIMEBOXEDINVALID}" &&
+ git tag -s -u "${GPGSSH_KEY_TIMEBOXEDINVALID}" -m timeboxedinvalid-signed timeboxedinvalid-signed
+'
+
test_expect_success GPGSSH 'verify and show ssh signatures' '
test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
(
@@ -80,6 +97,31 @@ test_expect_success GPGSSH 'verify and show ssh signatures' '
)
'
+test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'verify-tag exits failure on expired signature key' '
+ test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
+ test_must_fail git verify-tag expired-signed 2>actual &&
+ ! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual
+'
+
+test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'verify-tag exits failure on not yet valid signature key' '
+ test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
+ test_must_fail git verify-tag notyetvalid-signed 2>actual &&
+ ! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual
+'
+
+test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'verify-tag succeeds with tag date and key validity matching' '
+ test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
+ git verify-tag timeboxedvalid-signed 2>actual &&
+ grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual &&
+ ! grep "${GPGSSH_BAD_SIGNATURE}" actual
+'
+
+test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'verify-tag failes with tag date outside of key validity' '
+ test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
+ test_must_fail git verify-tag timeboxedinvalid-signed 2>actual &&
+ ! grep "${GPGSSH_GOOD_SIGNATURE_TRUSTED}" actual
+'
+
test_expect_success GPGSSH 'detect fudged ssh signature' '
test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" &&
git cat-file tag seventh-signed >raw &&
tag.c
+1
index 62fb09f5a5..dfbcd7fcc2 100644
--- a/tag.c
+++ b/tag.c
@@ -25,6 +25,7 @@ static int run_gpg_verify(const char *buf, unsigned long size, unsigned flags)
return error("no signature found");
}
+ sigc.payload_type = SIGNATURE_PAYLOAD_TAG;
sigc.payload = strbuf_detach(&payload, &sigc.payload_len);
ret = check_signature(&sigc, signature.buf, signature.len);