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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>
This commit is contained in:
Fabian Stelzer 2021-12-09 09:52:47 +01:00 committed by Junio C Hamano
parent 4bbf3780ff
commit dd3aa418aa
2 changed files with 43 additions and 0 deletions
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42
t/t7031-verify-tag-signed-ssh.sh
View File

@ -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 &&

1
tag.c
View File

@ -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);