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![Junio C Hamano](/assets/img/avatar_default.png)
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
179 lines
7.1 KiB
Bash
179 lines
7.1 KiB
Bash
# We always set GNUPGHOME, even if no usable GPG was found, as
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#
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# - It does not hurt, and
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#
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# - we cannot set global environment variables in lazy prereqs because they are
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# executed in an eval'ed subshell that changes the working directory to a
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# temporary one.
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GNUPGHOME="$PWD/gpghome"
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export GNUPGHOME
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test_lazy_prereq GPG '
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gpg_version=$(gpg --version 2>&1)
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test $? != 127 || exit 1
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# As said here: http://www.gnupg.org/documentation/faqs.html#q6.19
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# the gpg version 1.0.6 did not parse trust packets correctly, so for
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# that version, creation of signed tags using the generated key fails.
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case "$gpg_version" in
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"gpg (GnuPG) 1.0.6"*)
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say "Your version of gpg (1.0.6) is too buggy for testing"
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exit 1
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;;
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*)
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# Available key info:
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# * Type DSA and Elgamal, size 2048 bits, no expiration date,
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# name and email: C O Mitter <committer@example.com>
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# * Type RSA, size 2048 bits, no expiration date,
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# name and email: Eris Discordia <discord@example.net>
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# No password given, to enable non-interactive operation.
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# To generate new key:
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# gpg --homedir /tmp/gpghome --gen-key
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# To write armored exported key to keyring:
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# gpg --homedir /tmp/gpghome --export-secret-keys \
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# --armor 0xDEADBEEF >> lib-gpg/keyring.gpg
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# gpg --homedir /tmp/gpghome --export \
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# --armor 0xDEADBEEF >> lib-gpg/keyring.gpg
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# To export ownertrust:
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# gpg --homedir /tmp/gpghome --export-ownertrust \
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# > lib-gpg/ownertrust
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mkdir "$GNUPGHOME" &&
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chmod 0700 "$GNUPGHOME" &&
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(gpgconf --kill gpg-agent || : ) &&
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gpg --homedir "${GNUPGHOME}" --import \
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"$TEST_DIRECTORY"/lib-gpg/keyring.gpg &&
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gpg --homedir "${GNUPGHOME}" --import-ownertrust \
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"$TEST_DIRECTORY"/lib-gpg/ownertrust &&
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gpg --homedir "${GNUPGHOME}" </dev/null >/dev/null \
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--sign -u committer@example.com
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;;
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esac
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'
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test_lazy_prereq GPGSM '
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test_have_prereq GPG &&
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# Available key info:
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# * see t/lib-gpg/gpgsm-gen-key.in
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# To generate new certificate:
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# * no passphrase
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# gpgsm --homedir /tmp/gpghome/ \
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# -o /tmp/gpgsm.crt.user \
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# --generate-key \
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# --batch t/lib-gpg/gpgsm-gen-key.in
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# To import certificate:
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# gpgsm --homedir /tmp/gpghome/ \
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# --import /tmp/gpgsm.crt.user
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# To export into a .p12 we can later import:
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# gpgsm --homedir /tmp/gpghome/ \
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# -o t/lib-gpg/gpgsm_cert.p12 \
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# --export-secret-key-p12 "committer@example.com"
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echo | gpgsm --homedir "${GNUPGHOME}" \
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--passphrase-fd 0 --pinentry-mode loopback \
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--import "$TEST_DIRECTORY"/lib-gpg/gpgsm_cert.p12 &&
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gpgsm --homedir "${GNUPGHOME}" -K |
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grep fingerprint: |
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cut -d" " -f4 |
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tr -d "\\n" >"${GNUPGHOME}/trustlist.txt" &&
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echo " S relax" >>"${GNUPGHOME}/trustlist.txt" &&
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echo hello | gpgsm --homedir "${GNUPGHOME}" >/dev/null \
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-u committer@example.com -o /dev/null --sign -
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'
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test_lazy_prereq RFC1991 '
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test_have_prereq GPG &&
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echo | gpg --homedir "${GNUPGHOME}" -b --rfc1991 >/dev/null
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'
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GPGSSH_KEY_PRIMARY="${GNUPGHOME}/ed25519_ssh_signing_key"
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GPGSSH_KEY_SECONDARY="${GNUPGHOME}/rsa_2048_ssh_signing_key"
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GPGSSH_KEY_UNTRUSTED="${GNUPGHOME}/untrusted_ssh_signing_key"
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GPGSSH_KEY_EXPIRED="${GNUPGHOME}/expired_ssh_signing_key"
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GPGSSH_KEY_NOTYETVALID="${GNUPGHOME}/notyetvalid_ssh_signing_key"
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GPGSSH_KEY_TIMEBOXEDVALID="${GNUPGHOME}/timeboxed_valid_ssh_signing_key"
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GPGSSH_KEY_TIMEBOXEDINVALID="${GNUPGHOME}/timeboxed_invalid_ssh_signing_key"
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GPGSSH_KEY_WITH_PASSPHRASE="${GNUPGHOME}/protected_ssh_signing_key"
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GPGSSH_KEY_ECDSA="${GNUPGHOME}/ecdsa_ssh_signing_key"
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GPGSSH_KEY_PASSPHRASE="super_secret"
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GPGSSH_ALLOWED_SIGNERS="${GNUPGHOME}/ssh.all_valid.allowedSignersFile"
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GPGSSH_GOOD_SIGNATURE_TRUSTED='Good "git" signature for'
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GPGSSH_GOOD_SIGNATURE_UNTRUSTED='Good "git" signature with'
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GPGSSH_KEY_NOT_TRUSTED="No principal matched"
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GPGSSH_BAD_SIGNATURE="Signature verification failed"
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test_lazy_prereq GPGSSH '
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ssh_version=$(ssh-keygen -Y find-principals -n "git" 2>&1)
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test $? != 127 || exit 1
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echo $ssh_version | grep -q "find-principals:missing signature file"
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test $? = 0 || exit 1;
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# Setup some keys and an allowed signers file
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mkdir -p "${GNUPGHOME}" &&
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chmod 0700 "${GNUPGHOME}" &&
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(setfacl -k "${GNUPGHOME}" 2>/dev/null || true) &&
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ssh-keygen -t ed25519 -N "" -C "git ed25519 key" -f "${GPGSSH_KEY_PRIMARY}" >/dev/null &&
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ssh-keygen -t rsa -b 2048 -N "" -C "git rsa2048 key" -f "${GPGSSH_KEY_SECONDARY}" >/dev/null &&
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ssh-keygen -t ed25519 -N "${GPGSSH_KEY_PASSPHRASE}" -C "git ed25519 encrypted key" -f "${GPGSSH_KEY_WITH_PASSPHRASE}" >/dev/null &&
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ssh-keygen -t ecdsa -N "" -f "${GPGSSH_KEY_ECDSA}" >/dev/null &&
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ssh-keygen -t ed25519 -N "" -C "git ed25519 key" -f "${GPGSSH_KEY_UNTRUSTED}" >/dev/null &&
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cat >"${GPGSSH_ALLOWED_SIGNERS}" <<-EOF &&
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"principal with number 1" $(cat "${GPGSSH_KEY_PRIMARY}.pub")"
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"principal with number 2" $(cat "${GPGSSH_KEY_SECONDARY}.pub")"
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"principal with number 3" $(cat "${GPGSSH_KEY_WITH_PASSPHRASE}.pub")"
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"principal with number 4" $(cat "${GPGSSH_KEY_ECDSA}.pub")"
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EOF
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# Verify if at least one key and ssh-keygen works as expected
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echo "testpayload" |
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ssh-keygen -Y sign -n "git" -f "${GPGSSH_KEY_PRIMARY}" >gpgssh_prereq.sig &&
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ssh-keygen -Y find-principals -f "${GPGSSH_ALLOWED_SIGNERS}" -s gpgssh_prereq.sig &&
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echo "testpayload" |
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ssh-keygen -Y verify -n "git" -f "${GPGSSH_ALLOWED_SIGNERS}" -I "principal with number 1" -s gpgssh_prereq.sig
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'
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test_lazy_prereq GPGSSH_VERIFYTIME '
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# Check if ssh-keygen has a verify-time option by passing an invalid date to it
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ssh-keygen -Overify-time=INVALID -Y check-novalidate -s doesnotmatter 2>&1 | grep -q -F "Invalid \"verify-time\"" &&
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# Set up keys with key lifetimes
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ssh-keygen -t ed25519 -N "" -C "timeboxed valid key" -f "${GPGSSH_KEY_TIMEBOXEDVALID}" >/dev/null &&
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key_valid=$(cat "${GPGSSH_KEY_TIMEBOXEDVALID}.pub") &&
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ssh-keygen -t ed25519 -N "" -C "timeboxed invalid key" -f "${GPGSSH_KEY_TIMEBOXEDINVALID}" >/dev/null &&
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key_invalid=$(cat "${GPGSSH_KEY_TIMEBOXEDINVALID}.pub") &&
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ssh-keygen -t ed25519 -N "" -C "expired key" -f "${GPGSSH_KEY_EXPIRED}" >/dev/null &&
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key_expired=$(cat "${GPGSSH_KEY_EXPIRED}.pub") &&
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ssh-keygen -t ed25519 -N "" -C "not yet valid key" -f "${GPGSSH_KEY_NOTYETVALID}" >/dev/null &&
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key_notyetvalid=$(cat "${GPGSSH_KEY_NOTYETVALID}.pub") &&
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# Timestamps outside of test_tick span
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ts2005a=20050401000000 ts2005b=200504020000 &&
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# Timestamps within test_tick span
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ts2005c=20050407000000 ts2005d=200504100000 &&
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# Definitely not yet valid / expired timestamps
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ts2000=20000101000000 ts2999=29990101000000 &&
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cat >>"${GPGSSH_ALLOWED_SIGNERS}" <<-EOF &&
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"timeboxed valid key" valid-after="$ts2005c",valid-before="$ts2005d" $key_valid"
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"timeboxed invalid key" valid-after="$ts2005a",valid-before="$ts2005b" $key_invalid"
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"principal with expired key" valid-before="$ts2000" $key_expired"
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"principal with not yet valid key" valid-after="$ts2999" $key_notyetvalid"
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EOF
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# and verify ssh-keygen verifies the key lifetime
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echo "testpayload" |
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ssh-keygen -Y sign -n "git" -f "${GPGSSH_KEY_EXPIRED}" >gpgssh_verifytime_prereq.sig &&
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! (ssh-keygen -Y verify -n "git" -f "${GPGSSH_ALLOWED_SIGNERS}" -I "principal with expired key" -s gpgssh_verifytime_prereq.sig)
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'
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sanitize_pgp() {
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perl -ne '
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/^-----END PGP/ and $in_pgp = 0;
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print unless $in_pgp;
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/^-----BEGIN PGP/ and $in_pgp = 1;
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'
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}
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