From: Junio C Hamano Date: Tue, 21 Dec 2021 23:03:16 +0000 (-0800) Subject: Merge branch 'fs/ssh-signing-other-keytypes' X-Git-Tag: v2.35.0-rc0~60 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ee1dc493d10d814ceba1a551d9a185b9da627ad8;p=thirdparty%2Fgit.git Merge branch 'fs/ssh-signing-other-keytypes' The cryptographic signing using ssh keys can specify literal keys for keytypes whose name do not begin with the "ssh-" prefix by using the "key::" prefix mechanism (e.g. "key::ecdsa-sha2-nistp256"). * fs/ssh-signing-other-keytypes: ssh signing: make sign/amend test more resilient ssh signing: support non ssh-* keytypes --- ee1dc493d10d814ceba1a551d9a185b9da627ad8 diff --cc t/lib-gpg.sh index 3fadfcb306,6434feb6c1..3e7ee1386a --- a/t/lib-gpg.sh +++ b/t/lib-gpg.sh @@@ -90,11 -90,8 +90,12 @@@ test_lazy_prereq RFC1991 GPGSSH_KEY_PRIMARY="${GNUPGHOME}/ed25519_ssh_signing_key" GPGSSH_KEY_SECONDARY="${GNUPGHOME}/rsa_2048_ssh_signing_key" GPGSSH_KEY_UNTRUSTED="${GNUPGHOME}/untrusted_ssh_signing_key" +GPGSSH_KEY_EXPIRED="${GNUPGHOME}/expired_ssh_signing_key" +GPGSSH_KEY_NOTYETVALID="${GNUPGHOME}/notyetvalid_ssh_signing_key" +GPGSSH_KEY_TIMEBOXEDVALID="${GNUPGHOME}/timeboxed_valid_ssh_signing_key" +GPGSSH_KEY_TIMEBOXEDINVALID="${GNUPGHOME}/timeboxed_invalid_ssh_signing_key" GPGSSH_KEY_WITH_PASSPHRASE="${GNUPGHOME}/protected_ssh_signing_key" + GPGSSH_KEY_ECDSA="${GNUPGHOME}/ecdsa_ssh_signing_key" GPGSSH_KEY_PASSPHRASE="super_secret" GPGSSH_ALLOWED_SIGNERS="${GNUPGHOME}/ssh.all_valid.allowedSignersFile" @@@ -114,56 -115,14 +115,58 @@@ test_lazy_prereq GPGSSH chmod 0700 "${GNUPGHOME}" && (setfacl -k "${GNUPGHOME}" 2>/dev/null || true) && ssh-keygen -t ed25519 -N "" -C "git ed25519 key" -f "${GPGSSH_KEY_PRIMARY}" >/dev/null && - echo "\"principal with number 1\" $(cat "${GPGSSH_KEY_PRIMARY}.pub")" >> "${GPGSSH_ALLOWED_SIGNERS}" && ssh-keygen -t rsa -b 2048 -N "" -C "git rsa2048 key" -f "${GPGSSH_KEY_SECONDARY}" >/dev/null && - echo "\"principal with number 2\" $(cat "${GPGSSH_KEY_SECONDARY}.pub")" >> "${GPGSSH_ALLOWED_SIGNERS}" && ssh-keygen -t ed25519 -N "${GPGSSH_KEY_PASSPHRASE}" -C "git ed25519 encrypted key" -f "${GPGSSH_KEY_WITH_PASSPHRASE}" >/dev/null && - echo "\"principal with number 3\" $(cat "${GPGSSH_KEY_WITH_PASSPHRASE}.pub")" >> "${GPGSSH_ALLOWED_SIGNERS}" && - ssh-keygen -t ecdsa -N "" -f "${GPGSSH_KEY_ECDSA}" >/dev/null - echo "\"principal with number 4\" $(cat "${GPGSSH_KEY_ECDSA}.pub")" >> "${GPGSSH_ALLOWED_SIGNERS}" && - ssh-keygen -t ed25519 -N "" -f "${GPGSSH_KEY_UNTRUSTED}" >/dev/null ++ ssh-keygen -t ecdsa -N "" -f "${GPGSSH_KEY_ECDSA}" >/dev/null && + ssh-keygen -t ed25519 -N "" -C "git ed25519 key" -f "${GPGSSH_KEY_UNTRUSTED}" >/dev/null && + + cat >"${GPGSSH_ALLOWED_SIGNERS}" <<-EOF && + "principal with number 1" $(cat "${GPGSSH_KEY_PRIMARY}.pub")" + "principal with number 2" $(cat "${GPGSSH_KEY_SECONDARY}.pub")" + "principal with number 3" $(cat "${GPGSSH_KEY_WITH_PASSPHRASE}.pub")" ++ "principal with number 4" $(cat "${GPGSSH_KEY_ECDSA}.pub")" + EOF + + # Verify if at least one key and ssh-keygen works as expected + echo "testpayload" | + ssh-keygen -Y sign -n "git" -f "${GPGSSH_KEY_PRIMARY}" >gpgssh_prereq.sig && + ssh-keygen -Y find-principals -f "${GPGSSH_ALLOWED_SIGNERS}" -s gpgssh_prereq.sig && + echo "testpayload" | + ssh-keygen -Y verify -n "git" -f "${GPGSSH_ALLOWED_SIGNERS}" -I "principal with number 1" -s gpgssh_prereq.sig +' + +test_lazy_prereq GPGSSH_VERIFYTIME ' + # Check if ssh-keygen has a verify-time option by passing an invalid date to it + ssh-keygen -Overify-time=INVALID -Y check-novalidate -s doesnotmatter 2>&1 | grep -q -F "Invalid \"verify-time\"" && + + # Set up keys with key lifetimes + ssh-keygen -t ed25519 -N "" -C "timeboxed valid key" -f "${GPGSSH_KEY_TIMEBOXEDVALID}" >/dev/null && + key_valid=$(cat "${GPGSSH_KEY_TIMEBOXEDVALID}.pub") && + ssh-keygen -t ed25519 -N "" -C "timeboxed invalid key" -f "${GPGSSH_KEY_TIMEBOXEDINVALID}" >/dev/null && + key_invalid=$(cat "${GPGSSH_KEY_TIMEBOXEDINVALID}.pub") && + ssh-keygen -t ed25519 -N "" -C "expired key" -f "${GPGSSH_KEY_EXPIRED}" >/dev/null && + key_expired=$(cat "${GPGSSH_KEY_EXPIRED}.pub") && + ssh-keygen -t ed25519 -N "" -C "not yet valid key" -f "${GPGSSH_KEY_NOTYETVALID}" >/dev/null && + key_notyetvalid=$(cat "${GPGSSH_KEY_NOTYETVALID}.pub") && + + # Timestamps outside of test_tick span + ts2005a=20050401000000 ts2005b=200504020000 && + # Timestamps within test_tick span + ts2005c=20050407000000 ts2005d=200504100000 && + # Definitely not yet valid / expired timestamps + ts2000=20000101000000 ts2999=29990101000000 && + + cat >>"${GPGSSH_ALLOWED_SIGNERS}" <<-EOF && + "timeboxed valid key" valid-after="$ts2005c",valid-before="$ts2005d" $key_valid" + "timeboxed invalid key" valid-after="$ts2005a",valid-before="$ts2005b" $key_invalid" + "principal with expired key" valid-before="$ts2000" $key_expired" + "principal with not yet valid key" valid-after="$ts2999" $key_notyetvalid" + EOF + + # and verify ssh-keygen verifies the key lifetime + echo "testpayload" | + ssh-keygen -Y sign -n "git" -f "${GPGSSH_KEY_EXPIRED}" >gpgssh_verifytime_prereq.sig && + ! (ssh-keygen -Y verify -n "git" -f "${GPGSSH_ALLOWED_SIGNERS}" -I "principal with expired key" -s gpgssh_verifytime_prereq.sig) ' sanitize_pgp() { diff --cc t/t7528-signed-commit-ssh.sh index dae76ded0c,0ec5a6d764..f47e995179 --- a/t/t7528-signed-commit-ssh.sh +++ b/t/t7528-signed-commit-ssh.sh @@@ -73,26 -73,31 +73,48 @@@ test_expect_success GPGSSH 'create sign git tag eleventh-signed $(cat oid) && echo 12 | git commit-tree --gpg-sign="${GPGSSH_KEY_UNTRUSTED}" HEAD^{tree} >oid && test_line_count = 1 oid && - git tag twelfth-signed-alt $(cat oid) + git tag twelfth-signed-alt $(cat oid) && + + echo 13>file && test_tick && git commit -a -m thirteenth -S"${GPGSSH_KEY_ECDSA}" && + git tag thirteenth-signed-ecdsa + ' + + test_expect_success GPGSSH 'sign commits using literal public keys with ssh-agent' ' + test_when_finished "test_unconfig commit.gpgsign" && + test_config gpg.format ssh && + eval $(ssh-agent) && + test_when_finished "kill ${SSH_AGENT_PID}" && + ssh-add "${GPGSSH_KEY_PRIMARY}" && + echo 1 >file && git add file && + git commit -a -m rsa-inline -S"$(cat "${GPGSSH_KEY_PRIMARY}.pub")" && + echo 2 >file && + test_config user.signingkey "$(cat "${GPGSSH_KEY_PRIMARY}.pub")" && + git commit -a -m rsa-config -S && + ssh-add "${GPGSSH_KEY_ECDSA}" && + echo 3 >file && + git commit -a -m ecdsa-inline -S"key::$(cat "${GPGSSH_KEY_ECDSA}.pub")" && + echo 4 >file && + test_config user.signingkey "key::$(cat "${GPGSSH_KEY_ECDSA}.pub")" && + git commit -a -m ecdsa-config -S ' +test_expect_success GPGSSH,GPGSSH_VERIFYTIME 'create signed commits with keys having defined lifetimes' ' + test_when_finished "test_unconfig commit.gpgsign" && + test_config gpg.format ssh && + + echo expired >file && test_tick && git commit -a -m expired -S"${GPGSSH_KEY_EXPIRED}" && + git tag expired-signed && + + echo notyetvalid >file && test_tick && git commit -a -m notyetvalid -S"${GPGSSH_KEY_NOTYETVALID}" && + git tag notyetvalid-signed && + + echo timeboxedvalid >file && test_tick && git commit -a -m timeboxedvalid -S"${GPGSSH_KEY_TIMEBOXEDVALID}" && + git tag timeboxedvalid-signed && + + echo timeboxedinvalid >file && test_tick && git commit -a -m timeboxedinvalid -S"${GPGSSH_KEY_TIMEBOXEDINVALID}" && + git tag timeboxedinvalid-signed +' + test_expect_success GPGSSH 'verify and show signatures' ' test_config gpg.ssh.allowedSignersFile "${GPGSSH_ALLOWED_SIGNERS}" && test_config gpg.mintrustlevel UNDEFINED &&