Support SSHSIG and SK verification.

This adds support for OpenSSH SSHSIG signatures, used for signing
arbitrary payloads.

This also adds support for public-key verification from -SK algorithms
so that signatures from security keys can be verified. This enables
using security keys for SSHSIG, as well as using security keys as
SSH-cert CAs.
This commit is contained in:
Kevin Jones 2021-12-02 10:52:07 -05:00
Родитель 1890c4bfc4
Коммит e0c24b2c39
Не найден ключ, соответствующий данной подписи
Идентификатор ключа GPG: A521BED5353FDD4E
45 изменённых файлов: 627 добавлений и 13 удалений

8
.editorconfig Normal file
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@ -0,0 +1,8 @@
root = true
[*]
insert_final_newline = true
[*.rb]
indent_size = 2
indent_style = space

2
.github/workflows/ruby.yml поставляемый
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@ -20,5 +20,5 @@ jobs:
run: |
gem install bundler
bundle install --jobs 4 --retry 3
chmod 600 ./spec/fixtures/*
find ./spec/fixtures -type f -exec chmod 600 -- {} +
bundle exec rspec

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@ -34,3 +34,4 @@ require "ssh_data/certificate"
require "ssh_data/public_key"
require "ssh_data/private_key"
require "ssh_data/encoding"
require "ssh_data/signature"

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@ -3,6 +3,19 @@ module SSHData
# Fields in an OpenSSL private key
# https://github.com/openssh/openssh-portable/blob/master/PROTOCOL.key
OPENSSH_PRIVATE_KEY_MAGIC = "openssh-key-v1\x00"
OPENSSH_SIGNATURE_MAGIC = "SSHSIG"
OPENSSH_SIGNATURE_VERSION = 0x01
OPENSSH_SIGNATURE_FIELDS = [
[:sigversion, :uint32],
[:publickey, :string_public_key],
[:namespace, :string],
[:reserved, :string],
[:hashalgorithm, :string],
[:signature, :string],
]
OPENSSH_PRIVATE_KEY_FIELDS = [
[:ciphername, :string],
[:kdfname, :string],
@ -313,6 +326,21 @@ module SSHData
[key, str_read]
end
def decode_openssh_signature(raw, offset=0)
total_read = 0
magic = raw.byteslice(total_read, OPENSSH_SIGNATURE_MAGIC.bytesize)
unless magic == OPENSSH_SIGNATURE_MAGIC
raise DecodeError, "bad OpenSSH signature"
end
total_read += OPENSSH_SIGNATURE_MAGIC.bytesize
offset = total_read
data, read = decode_fields(raw, OPENSSH_SIGNATURE_FIELDS, offset)
total_read += read
[data, total_read]
end
# Decode the fields in a certificate.
#
# raw - Binary String certificate as described by RFC4253 section 6.6.
@ -680,6 +708,32 @@ module SSHData
[value].pack("L>")
end
# Read a uint8 from the provided raw data.
#
# raw - A binary String.
# offset - The offset into raw at which to read (default 0).
#
# Returns an Array including the decoded uint8 as an Integer and the
# Integer number of bytes read.
def decode_uint8(raw, offset=0)
if raw.bytesize < offset + 1
raise DecodeError, "data too short"
end
uint8 = raw.byteslice(offset, 1).unpack("C").first
[uint8, 1]
end
# Encoding an integer as a uint8.
#
# value - The Integer value to encode.
#
# Returns an encoded representation of the value.
def encode_uint8(value)
[value].pack("C")
end
extend self
end
end

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@ -35,7 +35,33 @@ module SSHData
end
def verify(signed_data, signature)
raise UnsupportedError, "SK-ECDSA verification is not supported."
read = 0
sig_algo, raw_sig, signature_read = Encoding.decode_signature(signature)
read += signature_read
sk_flags, sk_flags_read = Encoding.decode_uint8(signature, read)
read += sk_flags_read
counter, counter_read = Encoding.decode_uint32(signature, read)
read += counter_read
if read != signature.bytesize
raise DecodeError, "unexpected trailing data"
end
self.class.check_algorithm!(sig_algo, curve)
application_hash = OpenSSL::Digest::SHA256.digest(application)
message_hash = OpenSSL::Digest::SHA256.digest(signed_data)
blob =
application_hash +
Encoding.encode_uint8(sk_flags) +
Encoding.encode_uint32(counter) +
message_hash
openssl_sig = self.class.openssl_signature(raw_sig)
digest = DIGEST_FOR_CURVE[curve]
openssl.verify(digest.new, openssl_sig, blob)
end
def ==(other)

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@ -7,7 +7,7 @@ module SSHData
@application = application
super(algo: algo, pk: pk)
end
def self.algorithm_identifier
ALGO_SKED25519
end
@ -24,7 +24,38 @@ module SSHData
end
def verify(signed_data, signature)
raise UnsupportedError, "SK-Ed25519 verification is not supported."
self.class.ed25519_gem_required!
read = 0
sig_algo, raw_sig, signature_read = Encoding.decode_signature(signature)
read += signature_read
sk_flags, sk_flags_read = Encoding.decode_uint8(signature, read)
read += sk_flags_read
counter, counter_read = Encoding.decode_uint32(signature, read)
read += counter_read
if read != signature.bytesize
raise DecodeError, "unexpected trailing data"
end
if sig_algo != self.class.algorithm_identifier
raise DecodeError, "bad signature algorithm: #{sig_algo.inspect}"
end
application_hash = OpenSSL::Digest::SHA256.digest(application)
message_hash = OpenSSL::Digest::SHA256.digest(signed_data)
blob =
application_hash +
Encoding.encode_uint8(sk_flags) +
Encoding.encode_uint32(counter) +
message_hash
begin
ed25519_key.verify(raw_sig, blob)
rescue Ed25519::VerifyError
false
end
end
def ==(other)

105
lib/ssh_data/signature.rb Normal file
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@ -0,0 +1,105 @@
# frozen_string_literal: true
module SSHData
class Signature
PEM_TYPE = "SSH SIGNATURE"
SIGNATURE_PREAMBLE = "SSHSIG"
MIN_SUPPORTED_VERSION = 1
MAX_SUPPORTED_VERSION = 1
# Spec: no SHA1 or SHA384. In practice, OpenSSH is always going to use SHA512.
# Note the actual signing / verify primitive may use a different hash algorithm.
# https://github.com/openssh/openssh-portable/blob/b7ffbb17e37f59249c31f1ff59d6c5d80888f689/PROTOCOL.sshsig#L67
SUPPORTED_HASH_ALGORITHMS = {
"sha256" => OpenSSL::Digest::SHA256,
"sha512" => OpenSSL::Digest::SHA512,
}
PERMITTED_RSA_SIGNATURE_ALGORITHMS = [
PublicKey::ALGO_RSA_SHA2_256,
PublicKey::ALGO_RSA_SHA2_512,
]
attr_reader :sigversion, :namespace, :signature, :reserved, :hashalgorithm
# Parses a PEM armored SSH signature.
# pem - A PEM encoded SSH signature.
#
# Returns a Signature instance.
def self.parse_pem(pem)
pem_type = Encoding.pem_type(pem)
if pem_type != PEM_TYPE
raise DecodeError, "Mismatched PEM type. Expecting '#{PEM_TYPE}', actually '#{pem_type}'."
end
blob = Encoding.decode_pem(pem, pem_type)
self.parse_blob(blob)
end
def self.parse_blob(blob)
data, read = Encoding.decode_openssh_signature(blob)
if read != blob.bytesize
raise DecodeError, "unexpected trailing data"
end
new(**data)
end
def initialize(sigversion:, publickey:, namespace:, reserved:, hashalgorithm:, signature:)
if sigversion > MAX_SUPPORTED_VERSION || sigversion < MIN_SUPPORTED_VERSION
raise UnsupportedError, "Signature version is not supported"
end
unless SUPPORTED_HASH_ALGORITHMS.has_key?(hashalgorithm)
raise UnsupportedError, "Hash algorithm #{hashalgorithm} is not supported."
end
# Spec: empty namespaces are not permitted.
# https://github.com/openssh/openssh-portable/blob/b7ffbb17e37f59249c31f1ff59d6c5d80888f689/PROTOCOL.sshsig#L57
raise UnsupportedError, "A namespace is required." if namespace.empty?
# Spec: ignore 'reserved', don't need to validate that it is empty.
@sigversion = sigversion
@publickey = publickey
@namespace = namespace
@reserved = reserved
@hashalgorithm = hashalgorithm
@signature = signature
end
def verify(signed_data)
key = public_key
digest_algorithm = SUPPORTED_HASH_ALGORITHMS[@hashalgorithm]
if key.is_a?(PublicKey::RSA)
sig_algo, * = Encoding.decode_signature(@signature)
# Spec: If the signature is an RSA signature, the legacy 'ssh-rsa'
# identifer is not permitted.
# https://github.com/openssh/openssh-portable/blob/b7ffbb17e37f59249c31f1ff59d6c5d80888f689/PROTOCOL.sshsig#L72
unless PERMITTED_RSA_SIGNATURE_ALGORITHMS.include?(sig_algo)
raise UnsupportedError, "RSA signature #{sig_algo} is not supported."
end
end
raise AlgorithmError, "Unsupported digest algorithm #{@hashalgorithm}" if digest_algorithm.nil?
message_digest = digest_algorithm.digest(signed_data)
blob =
SIGNATURE_PREAMBLE +
Encoding.encode_string(@namespace) +
Encoding.encode_string(@reserved || "") +
Encoding.encode_string(@hashalgorithm) +
Encoding.encode_string(message_digest)
key.verify(blob, @signature)
end
def public_key
PublicKey.from_data(@publickey)
end
end
end

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@ -281,6 +281,22 @@ describe SSHData::Certificate do
SSHData::PublicKey::RSA # ca key type
]
test_cases << [
:rsa_leaf_for_skecdsa_ca, # name
"rsa_leaf_for_skecdsa_ca-cert.pub", # fixture
SSHData::Certificate::ALGO_RSA, # algo
SSHData::PublicKey::RSA, # public key type
SSHData::PublicKey::SKECDSA # ca key type
]
test_cases << [
:rsa_leaf_for_sked25519_ca, # name
"rsa_leaf_for_sked25519_ca-cert.pub", # fixture
SSHData::Certificate::ALGO_RSA, # algo
SSHData::PublicKey::RSA, # public key type
SSHData::PublicKey::SKED25519 # ca key type
]
test_cases.each do |name, fixture_name, algo, public_key_class, ca_key_class|
describe(name) do
let(:openssh) { fixture(fixture_name).strip }

14
spec/fixtures/gen.sh поставляемый
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@ -1,7 +1,7 @@
#!/bin/bash
generate_security_keys=0
read -p "Generated security key-backed keys (Requires key and user interaction)? [yN] " -n 1 -r
read -p "Generate security key-backed keys (Requires key and user interaction)? [yN] " -n 1 -r
echo
if [[ $REPLY =~ ^[Yy]$ ]]
then
@ -15,6 +15,18 @@ ssh-keygen -tdsa -N "" -f ./dsa_ca
ssh-keygen -tecdsa -N "" -f ./ecdsa_ca
ssh-keygen -ted25519 -N "" -f ./ed25519_ca
if [[ $generate_security_keys -eq 1 ]]
then
ssh-keygen -ted25519-sk -N "" -f ./sked25519_ca
ssh-keygen -tecdsa-sk -N "" -f ./skecdsa_ca
ssh-keygen -trsa -N "" -f ./rsa_leaf_for_sked25519_ca
ssh-keygen -s sked25519_ca -z 123 -n p1,p2 -O clear -I my-ident -O critical:foo=bar -O extension:baz=qwer -O permit-X11-forwarding rsa_leaf_for_sked25519_ca.pub
ssh-keygen -trsa -N "" -f ./rsa_leaf_for_skecdsa_ca
ssh-keygen -s skecdsa_ca -z 123 -n p1,p2 -O clear -I my-ident -O critical:foo=bar -O extension:baz=qwer -O permit-X11-forwarding rsa_leaf_for_skecdsa_ca.pub
fi
ssh-keygen -trsa -N "" -f ./rsa_leaf_for_rsa_ca
ssh-keygen -s rsa_ca -z 123 -n p1,p2 -O clear -I my-ident -O critical:foo=bar -O extension:baz=qwer -O permit-X11-forwarding rsa_leaf_for_rsa_ca.pub

38
spec/fixtures/rsa_leaf_for_skecdsa_ca поставляемый Normal file
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@ -0,0 +1,38 @@
-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAABlwAAAAdzc2gtcn
NhAAAAAwEAAQAAAYEAxzIj0SZz5rXQdCys5Z4A8m7EQ3AIoXm0CGJ8yjgITB0M8HtvM4aV
BeDe/u+nzU1D24CfLqRFvMUQRhWAERJcla+zwSMmBg1qz92SNa+QYOttiuBhWwgzramO1F
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ls9cdC3JJSejbFTBcqpEJwgkkFltzW6NDoT/oDc3bXtsLo6dEiIrwaiqBCzUI6YWv/8/53
DtwdpunO+w/m/d2fsMOD7hBCsJq9F8bqjFYS+RmgltKecTnwJ2UmVBjXsxgxQxviKdfGjn
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idQYsG+n67hKLOcwAAABN2Y3Nqb25lc0BLZXZpbnMtTUJQAQIDBAUG
-----END OPENSSH PRIVATE KEY-----

1
spec/fixtures/rsa_leaf_for_skecdsa_ca-cert.pub поставляемый Normal file
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@ -0,0 +1 @@
ssh-rsa-cert-v01@openssh.com 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 vcsjones@Kevins-MBP

1
spec/fixtures/rsa_leaf_for_skecdsa_ca.pub поставляемый Normal file
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@ -0,0 +1 @@
ssh-rsa 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 vcsjones@Kevins-MBP

38
spec/fixtures/rsa_leaf_for_sked25519_ca поставляемый Normal file
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@ -0,0 +1,38 @@
-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAABlwAAAAdzc2gtcn
NhAAAAAwEAAQAAAYEAuDxsZAjV3QkUVhrYF78JRt7e/kDAQLlcmuLNN/GcvD3R1d0r0eV1
RnDrWtt8kT3WcDxHxVeyyvAa3S1VAUhQOnXbAmc6klEvhf8kd9r/KJbsqKdcyEOhSTlT69
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9+7TKEMTO5K1KFMazye2PAQs0Ni0ZD+dTBvYeCUzEIHtRWXwY4ZW3+SGoKF1jnyjcIIAQT
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9iWs9YQ+OfXE8fGRdXtZMCRuX1g5SkyO/Z5wmOVBg0vUgL92taB/Fc155FlWA3K5R/piEO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-----END OPENSSH PRIVATE KEY-----

1
spec/fixtures/rsa_leaf_for_sked25519_ca-cert.pub поставляемый Normal file
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@ -0,0 +1 @@
ssh-rsa-cert-v01@openssh.com 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 vcsjones@Kevins-MBP

1
spec/fixtures/rsa_leaf_for_sked25519_ca.pub поставляемый Normal file
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@ -0,0 +1 @@
ssh-rsa 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 vcsjones@Kevins-MBP

35
spec/fixtures/signatures/create-signatures.sh поставляемый Executable file
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@ -0,0 +1,35 @@
#!/usr/bin/env bash
filedir=`dirname $0`
pushd $filedir
message=$filedir/message
if [ ! -f "$message" ]; then
dd if=/dev/urandom count=1 bs=64 | base64 > $message
fi
create_key_and_sign() {
local alg=$1
local keysize=$2
local key=$filedir/$alg-$keysize.key
yes | ssh-keygen -q -N "" -t $alg -b $keysize -C "" -f $key
cat $message | ssh-keygen -Y sign -n file -f $key > $message.$alg-$keysize.sig
}
create_key_and_sign "rsa" 2048
create_key_and_sign "ecdsa" 256
create_key_and_sign "ecdsa" 384
create_key_and_sign "ecdsa" 521
create_key_and_sign "ed25519" 256
generate_security_keys=0
read -p "Generate security key-backed keys (Requires key and user interaction)? [yN] " -n 1 -r
echo
if [[ $REPLY =~ ^[Yy]$ ]]
then
create_key_and_sign "ed25519-sk" 256
create_key_and_sign "ecdsa-sk" 256
fi
popd

8
spec/fixtures/signatures/ecdsa-256.key поставляемый Normal file
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@ -0,0 +1,8 @@
-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAaAAAABNlY2RzYS
1zaGEyLW5pc3RwMjU2AAAACG5pc3RwMjU2AAAAQQTkKAxi+7mnAzaQPnO+xPMVEI7WdZ8+
Tj0r1WXib7od+ej6H5eXInlH4CF8HZvqOpk8+Wk1KwXXfJvFD21XhQdaAAAAoLiMlKW4jJ
SlAAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBOQoDGL7uacDNpA+
c77E8xUQjtZ1nz5OPSvVZeJvuh356Pofl5cieUfgIXwdm+o6mTz5aTUrBdd8m8UPbVeFB1
oAAAAhALUq9AgkV1MDJNzxQ4zm1mawBoA19l+GJCN4XnR5b+NYAAAAAAECAwQFBgc=
-----END OPENSSH PRIVATE KEY-----

1
spec/fixtures/signatures/ecdsa-256.key.pub поставляемый Normal file
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@ -0,0 +1 @@
ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBOQoDGL7uacDNpA+c77E8xUQjtZ1nz5OPSvVZeJvuh356Pofl5cieUfgIXwdm+o6mTz5aTUrBdd8m8UPbVeFB1o=

10
spec/fixtures/signatures/ecdsa-384.key поставляемый Normal file
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@ -0,0 +1,10 @@
-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAiAAAABNlY2RzYS
1zaGEyLW5pc3RwMzg0AAAACG5pc3RwMzg0AAAAYQSzFqfqbQRq+bNApN3otjDR6mmal8tZ
wkOB0lP/H5/pWKdq2Mxxyq9t4x1M/zBvY+xfo0xjGheaOERP6GRcBNsntgA7VFZ9B35Ujf
pyIAGz5AzndcVVIQM27kzgo2VBHJQAAADII8whciPMIXIAAAATZWNkc2Etc2hhMi1uaXN0
cDM4NAAAAAhuaXN0cDM4NAAAAGEEsxan6m0EavmzQKTd6LYw0eppmpfLWcJDgdJT/x+f6V
inatjMccqvbeMdTP8wb2PsX6NMYxoXmjhET+hkXATbJ7YAO1RWfQd+VI36ciABs+QM53XF
VSEDNu5M4KNlQRyUAAAAMFYlo7mBX43tYzygVhtlwdmCHyAZjwfKZwrZPajz3N/cPopsdN
o9ajUQQtoi3NN1sAAAAAA=
-----END OPENSSH PRIVATE KEY-----

1
spec/fixtures/signatures/ecdsa-384.key.pub поставляемый Normal file
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@ -0,0 +1 @@
ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBLMWp+ptBGr5s0Ck3ei2MNHqaZqXy1nCQ4HSU/8fn+lYp2rYzHHKr23jHUz/MG9j7F+jTGMaF5o4RE/oZFwE2ye2ADtUVn0HflSN+nIgAbPkDOd1xVUhAzbuTOCjZUEclA==

12
spec/fixtures/signatures/ecdsa-521.key поставляемый Normal file
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@ -0,0 +1,12 @@
-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAArAAAABNlY2RzYS
1zaGEyLW5pc3RwNTIxAAAACG5pc3RwNTIxAAAAhQQBTqIGKF5+kaZFLt2ETYan7Wy2PNPY
a8m2bE89xuTwN/GGB0QYQM9H5YhgK4WZGllCw7h9upS8RTpvH9TmEfxgHo0ASsfqz5/wui
UvGvQU7MQl6fK+1hxl6v6gAB8EXr5jaVCPhNWhCOSjMAmPgqgcNYZUXZG/qWg1bPwoGkJG
OmLc9PgAAAEAK/PNRivzzUYAAAATZWNkc2Etc2hhMi1uaXN0cDUyMQAAAAhuaXN0cDUyMQ
AAAIUEAU6iBihefpGmRS7dhE2Gp+1stjzT2GvJtmxPPcbk8DfxhgdEGEDPR+WIYCuFmRpZ
QsO4fbqUvEU6bx/U5hH8YB6NAErH6s+f8LolLxr0FOzEJenyvtYcZer+oAAfBF6+Y2lQj4
TVoQjkozAJj4KoHDWGVF2Rv6loNWz8KBpCRjpi3PT4AAAAQWh55sQ+fBI4LQLUDN5RLT4C
LubO51jTCIVDkykksnNHfyZB0CNlxSbpAwKUjbchT7DuF9h8TeZ94EKb3a8GWUkXAAAAAA
ECAw==
-----END OPENSSH PRIVATE KEY-----

1
spec/fixtures/signatures/ecdsa-521.key.pub поставляемый Normal file
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@ -0,0 +1 @@
ecdsa-sha2-nistp521 AAAAE2VjZHNhLXNoYTItbmlzdHA1MjEAAAAIbmlzdHA1MjEAAACFBAFOogYoXn6RpkUu3YRNhqftbLY809hrybZsTz3G5PA38YYHRBhAz0fliGArhZkaWULDuH26lLxFOm8f1OYR/GAejQBKx+rPn/C6JS8a9BTsxCXp8r7WHGXq/qAAHwRevmNpUI+E1aEI5KMwCY+CqBw1hlRdkb+paDVs/CgaQkY6Ytz0+A==

10
spec/fixtures/signatures/ecdsa-sk-256.key поставляемый Normal file
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@ -0,0 +1,10 @@
-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAfwAAACJzay1lY2
RzYS1zaGEyLW5pc3RwMjU2QG9wZW5zc2guY29tAAAACG5pc3RwMjU2AAAAQQRE7ETUY6t4
+fiDnVI5Vs3jAh4oaiQ8IWof2H+o3zpVebQf+7qNosSnYOGDxN0xednWrSddWjSFHYhsB5
9thXSQAAAABHNzaDoAAADYB2rdHAdq3RwAAAAic2stZWNkc2Etc2hhMi1uaXN0cDI1NkBv
cGVuc3NoLmNvbQAAAAhuaXN0cDI1NgAAAEEEROxE1GOrePn4g51SOVbN4wIeKGokPCFqH9
h/qN86VXm0H/u6jaLEp2Dhg8TdMXnZ1q0nXVo0hR2IbAefbYV0kAAAAARzc2g6AQAAAEDE
1Wdgu/Rt+nqEddM9XVIvZgNwC3bgu0xLH1kiOqPkUi/ZFkC2MHx+16coYegqlgZMreBP8+
jKvGQysdwE+PchAAAAAAAAAAABAgME
-----END OPENSSH PRIVATE KEY-----

1
spec/fixtures/signatures/ecdsa-sk-256.key.pub поставляемый Normal file
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@ -0,0 +1 @@
sk-ecdsa-sha2-nistp256@openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBETsRNRjq3j5+IOdUjlWzeMCHihqJDwhah/Yf6jfOlV5tB/7uo2ixKdg4YPE3TF52datJ11aNIUdiGwHn22FdJAAAAAEc3NoOg==

7
spec/fixtures/signatures/ed25519-256.key поставляемый Normal file
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@ -0,0 +1,7 @@
-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
QyNTUxOQAAACCheCDZeB6kTAGvcJDOQdeKDLxPy6+zr0O+jHl+CcaA8wAAAIi66rVYuuq1
WAAAAAtzc2gtZWQyNTUxOQAAACCheCDZeB6kTAGvcJDOQdeKDLxPy6+zr0O+jHl+CcaA8w
AAAEAylVdyV3Kct67/xo1exqxiMqVaB3Zcji+s5VB7PQ7S5qF4INl4HqRMAa9wkM5B14oM
vE/Lr7OvQ76MeX4JxoDzAAAAAAECAwQF
-----END OPENSSH PRIVATE KEY-----

1
spec/fixtures/signatures/ed25519-256.key.pub поставляемый Normal file
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@ -0,0 +1 @@
ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKF4INl4HqRMAa9wkM5B14oMvE/Lr7OvQ76MeX4JxoDz

9
spec/fixtures/signatures/ed25519-sk-256.key поставляемый Normal file
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@ -0,0 +1,9 @@
-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAASgAAABpzay1zc2
gtZWQyNTUxOUBvcGVuc3NoLmNvbQAAACC5TzTioebDxDVFQicHX1JSKLhoGgLBi/f/qkCD
XaXBUAAAAARzc2g6AAAA4CjqYlwo6mJcAAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY2
9tAAAAILlPNOKh5sPENUVCJwdfUlIouGgaAsGL9/+qQINdpcFQAAAABHNzaDoBAAAAgENU
XbPTSRo6B9x8UzfEjRpdp4wZrhLAphZPVGi1qZIdZ9mSWjW4II11Fv9F8h5QtP9dmUTeKb
Azr07lTcy92cGLngr5PjHM904yLBCg61zQL75YNZ3FReVG8SZhg7YD7MER1thy1t7ItWR0
vQf65700K+QGBF7WhtznGms0A6oXAAAAAAAAAAAB
-----END OPENSSH PRIVATE KEY-----

1
spec/fixtures/signatures/ed25519-sk-256.key.pub поставляемый Normal file
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@ -0,0 +1 @@
sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAILlPNOKh5sPENUVCJwdfUlIouGgaAsGL9/+qQINdpcFQAAAABHNzaDo=

1
spec/fixtures/signatures/message поставляемый Normal file
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@ -0,0 +1 @@
Z0dzRu/AfSjNd7H1LlEk/vxw/tuGVeY3NSzb8wxSw6lAN9o+nefDntF9Ij3u9oj6Jhis6aQP6iCv3YHHcKfd9A==

7
spec/fixtures/signatures/message.ecdsa-256.sig поставляемый Normal file
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@ -0,0 +1,7 @@
-----BEGIN SSH SIGNATURE-----
U1NIU0lHAAAAAQAAAGgAAAATZWNkc2Etc2hhMi1uaXN0cDI1NgAAAAhuaXN0cDI1NgAAAE
EE5CgMYvu5pwM2kD5zvsTzFRCO1nWfPk49K9Vl4m+6Hfno+h+XlyJ5R+AhfB2b6jqZPPlp
NSsF13ybxQ9tV4UHWgAAAARmaWxlAAAAAAAAAAZzaGE1MTIAAABkAAAAE2VjZHNhLXNoYT
ItbmlzdHAyNTYAAABJAAAAIQCV+yVd666huw+0MMotdB+b00loaCYY8yWVU3KuVgHe3AAA
ACBYDwDWqTlIMFJZBCyu61VVAxJzp2A/v1iYQ0vzp4x7mA==
-----END SSH SIGNATURE-----

8
spec/fixtures/signatures/message.ecdsa-384.sig поставляемый Normal file
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@ -0,0 +1,8 @@
-----BEGIN SSH SIGNATURE-----
U1NIU0lHAAAAAQAAAIgAAAATZWNkc2Etc2hhMi1uaXN0cDM4NAAAAAhuaXN0cDM4NAAAAG
EEsxan6m0EavmzQKTd6LYw0eppmpfLWcJDgdJT/x+f6VinatjMccqvbeMdTP8wb2PsX6NM
YxoXmjhET+hkXATbJ7YAO1RWfQd+VI36ciABs+QM53XFVSEDNu5M4KNlQRyUAAAABGZpbG
UAAAAAAAAABnNoYTUxMgAAAIUAAAATZWNkc2Etc2hhMi1uaXN0cDM4NAAAAGoAAAAxAJXR
bcuPoyo2MeNmFZsgusb2J2NQRPRmVV4xg1zMMN45THkiSasC3KVxXpSCe6GWYgAAADEA4L
utlhNdNB5r19u9unohEnJuWJh9F07tDcFwnux0MCmiQHSo6R06q4W0/BZVqrsI
-----END SSH SIGNATURE-----

10
spec/fixtures/signatures/message.ecdsa-521.sig поставляемый Normal file
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@ -0,0 +1,10 @@
-----BEGIN SSH SIGNATURE-----
U1NIU0lHAAAAAQAAAKwAAAATZWNkc2Etc2hhMi1uaXN0cDUyMQAAAAhuaXN0cDUyMQAAAI
UEAU6iBihefpGmRS7dhE2Gp+1stjzT2GvJtmxPPcbk8DfxhgdEGEDPR+WIYCuFmRpZQsO4
fbqUvEU6bx/U5hH8YB6NAErH6s+f8LolLxr0FOzEJenyvtYcZer+oAAfBF6+Y2lQj4TVoQ
jkozAJj4KoHDWGVF2Rv6loNWz8KBpCRjpi3PT4AAAABGZpbGUAAAAAAAAABnNoYTUxMgAA
AKcAAAATZWNkc2Etc2hhMi1uaXN0cDUyMQAAAIwAAABCAa+hJCcamPsA0jIzbb+OMmL047
II6+6SaD/zcjSwSELgvI0uf7ogyjYl04/7VHWJZqOHpgGKS5UmlBB1Pe+njGxQAAAAQgCm
Z1H5TH+KyimsHGn+ibpLcjjYGiRKwFDW/Rred8Isukja6DFf/X1iNTpMKYxCNXYsYPHbj4
cnClYpIovywgiA5A==
-----END SSH SIGNATURE-----

8
spec/fixtures/signatures/message.ecdsa-sk-256.sig поставляемый Normal file
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@ -0,0 +1,8 @@
-----BEGIN SSH SIGNATURE-----
U1NIU0lHAAAAAQAAAH8AAAAic2stZWNkc2Etc2hhMi1uaXN0cDI1NkBvcGVuc3NoLmNvbQ
AAAAhuaXN0cDI1NgAAAEEEROxE1GOrePn4g51SOVbN4wIeKGokPCFqH9h/qN86VXm0H/u6
jaLEp2Dhg8TdMXnZ1q0nXVo0hR2IbAefbYV0kAAAAARzc2g6AAAABGZpbGUAAAAAAAAABn
NoYTUxMgAAAHgAAAAic2stZWNkc2Etc2hhMi1uaXN0cDI1NkBvcGVuc3NoLmNvbQAAAEkA
AAAgHiBNWuPpUEMyt2bz8vn3ehtbaHVPDeyDornotDMuY2AAAAAhAPTzwayZ2djj+Xjplc
+t9+mKd8xZH5teyTyeEtzVlfstBQAAAAg=
-----END SSH SIGNATURE-----

6
spec/fixtures/signatures/message.ed25519-256.sig поставляемый Normal file
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@ -0,0 +1,6 @@
-----BEGIN SSH SIGNATURE-----
U1NIU0lHAAAAAQAAADMAAAALc3NoLWVkMjU1MTkAAAAgoXgg2XgepEwBr3CQzkHXigy8T8
uvs69Dvox5fgnGgPMAAAAEZmlsZQAAAAAAAAAGc2hhNTEyAAAAUwAAAAtzc2gtZWQyNTUx
OQAAAECRxENUPwmbRveDvNFOc36EuyMIa6jXWbCVkEQ2dtORyFAnChmr1kHMFX4B9TQm6U
ssvYRRUo6ePL5DuAjLP+kD
-----END SSH SIGNATURE-----

7
spec/fixtures/signatures/message.ed25519-sk-256.sig поставляемый Normal file
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@ -0,0 +1,7 @@
-----BEGIN SSH SIGNATURE-----
U1NIU0lHAAAAAQAAAEoAAAAac2stc3NoLWVkMjU1MTlAb3BlbnNzaC5jb20AAAAguU804q
Hmw8Q1RUInB19SUii4aBoCwYv3/6pAg12lwVAAAAAEc3NoOgAAAARmaWxlAAAAAAAAAAZz
aGE1MTIAAABnAAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAQDecacfTcsDHHy
ijGxCojJhUbT+KMznT868J7BQy/FQPL3adiFTiuhJnOcd7d3fPp7ZGl5IAykn01vHN/qk4
KwkFAAAABg==
-----END SSH SIGNATURE-----

14
spec/fixtures/signatures/message.rsa-2048.sig поставляемый Normal file
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@ -0,0 +1,14 @@
-----BEGIN SSH SIGNATURE-----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-----END SSH SIGNATURE-----

27
spec/fixtures/signatures/rsa-2048.key поставляемый Normal file
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@ -0,0 +1,27 @@
-----BEGIN OPENSSH PRIVATE KEY-----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-----END OPENSSH PRIVATE KEY-----

1
spec/fixtures/signatures/rsa-2048.key.pub поставляемый Normal file
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@ -0,0 +1 @@
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCwICaSQsu4ee8psg/ksGZDITeUGI16O3iykS3yBHCobWkHW87F12yTNStb8VOC9MKX49anMM5mwcAGcJynlsozi7TBXhQXePdUp5w43hi/FHSxOJ8uKyupSb62tJ/trvdf/klZedWgJErJn35uCJyrr3uOAYt962ChbSeW6joWu+x8aKQT9ticDCU/aYCEsaHi+8r5Zo+u0SZgZgVot8z9+OX9oFt/kNtgD8uh2S7RFhdwMGpUoUXnLMBqgoaODPXmds8ZKLALPvCj11pWn5TNnHSVzPA+trHJpuybo3OSmbJVdpFoEuLDaPiqoOaLRWoyb1RitgrJtiECSsNaoncr

10
spec/fixtures/skecdsa_ca поставляемый Normal file
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@ -0,0 +1,10 @@
-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAfwAAACJzay1lY2
RzYS1zaGEyLW5pc3RwMjU2QG9wZW5zc2guY29tAAAACG5pc3RwMjU2AAAAQQSq1e4+3xiV
+8J31I26lSu/RFyqx5RvMWSI0S22tIJm4PUooO4OW5T+Di3/jZgko9uwFzr/zDZTy6uWyD
Qhk9G8AAAABHNzaDoAAADoeklfLnpJXy4AAAAic2stZWNkc2Etc2hhMi1uaXN0cDI1NkBv
cGVuc3NoLmNvbQAAAAhuaXN0cDI1NgAAAEEEqtXuPt8YlfvCd9SNupUrv0RcqseUbzFkiN
EttrSCZuD1KKDuDluU/g4t/42YJKPbsBc6/8w2U8urlsg0IZPRvAAAAARzc2g6AQAAAECE
3HUalOjXfOTrfIRFnJIzVmj1Oq1o5vaGZdevL12Ue8oy01QAMvDLhu7tenBtwzXb65N6aH
n21rJShWK/Nc6EAAAAAAAAABN2Y3Nqb25lc0BLZXZpbnMtTUJQAQ==
-----END OPENSSH PRIVATE KEY-----

1
spec/fixtures/skecdsa_ca.pub поставляемый Normal file
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@ -0,0 +1 @@
sk-ecdsa-sha2-nistp256@openssh.com AAAAInNrLWVjZHNhLXNoYTItbmlzdHAyNTZAb3BlbnNzaC5jb20AAAAIbmlzdHAyNTYAAABBBKrV7j7fGJX7wnfUjbqVK79EXKrHlG8xZIjRLba0gmbg9Sig7g5blP4OLf+NmCSj27AXOv/MNlPLq5bINCGT0bwAAAAEc3NoOg== vcsjones@Kevins-MBP

10
spec/fixtures/sked25519_ca поставляемый Normal file
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@ -0,0 +1,10 @@
-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAASgAAABpzay1zc2
gtZWQyNTUxOUBvcGVuc3NoLmNvbQAAACAdGSyAfB35x92DVqxGxRKs27JpPioJZxuX5O09
YJG23AAAAARzc2g6AAAA+DJHBAkyRwQJAAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY2
9tAAAAIB0ZLIB8HfnH3YNWrEbFEqzbsmk+KglnG5fk7T1gkbbcAAAABHNzaDoBAAAAgDKR
R3sjWdfZ4HVt6ZDoCzSuoF24bmrztloIUdysTpc/LQWjeH/fS5ob6glvnSNVF+ilFd2nct
hvUvDSemVXYBVc54je/gsTzTCRpnQ/557G3ABOXCYvH/C3w0D8Ogkh2e7JTrpYIJjkurlG
Ctg2SteEN1Mms/5fQXmK0nwW3rB1AAAAAAAAABN2Y3Nqb25lc0BLZXZpbnMtTUJQAQIDBA
UG
-----END OPENSSH PRIVATE KEY-----

1
spec/fixtures/sked25519_ca.pub поставляемый Normal file
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@ -0,0 +1 @@
sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIB0ZLIB8HfnH3YNWrEbFEqzbsmk+KglnG5fk7T1gkbbcAAAABHNzaDo= vcsjones@Kevins-MBP

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@ -109,10 +109,6 @@ describe SSHData::PublicKey::SKECDSA do
expect(round_tripped).to eq(openssl_sig)
end
it "can not verify signatures" do
expect { subject.verify(msg, sig) }.to raise_error(SSHData::UnsupportedError)
end
it "blows up parsing malformed keys" do
malformed = [algo, Base64.strict_encode64([
SSHData::Encoding.encode_string(algo),

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@ -57,10 +57,6 @@ describe SSHData::PublicKey::SKED25519 do
expect(subject.ed25519_key.to_bytes).to eq(verify_key.to_bytes)
end
it "can not verify signatures" do
expect { subject.verify(msg, sig) }.to raise_error(SSHData::UnsupportedError)
end
it "can be rencoded" do
expect(openssh_key.rfc4253).to eq(fixture("sked25519_leaf_for_rsa_ca.pub", binary: true))
end

81
spec/signature_spec.rb Normal file
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@ -0,0 +1,81 @@
require_relative "./spec_helper"
describe SSHData::Signature do
describe "end to end" do
it "can verify an Ed25519-SK git signature" do
message= "tree ed9f16d32a89e48289d9d4becc4ff47cbd11f58c\nparent 7c6364502eceecc87b276d8b49d8eb0ae96fd9e3\nauthor Kevin Jones <octocat@github.com> 1638815753 -0500\ncommitter Kevin Jones <octocat@github.com> 1638815828 -0500\n\ntest\n"
signature = <<~SIG
-----BEGIN SSH SIGNATURE-----
U1NIU0lHAAAAAQAAAEoAAAAac2stc3NoLWVkMjU1MTlAb3BlbnNzaC5jb20AAAAgnXUo8l
URoToCMzr+Rxeia/9yy+Rn+VwTTOqXdIgf7TUAAAAEc3NoOgAAAANnaXQAAAAAAAAABnNo
YTUxMgAAAGcAAAAac2stc3NoLWVkMjU1MTlAb3BlbnNzaC5jb20AAABAud+P+aC7yCEcgy
smyAyN5iokI0T+dKuhl7Ml7XB/wPBlefSamMXoHE7k3BbAXBNXJQH0TtHo/aX0gZxLy44D
DgUAAAAG
-----END SSH SIGNATURE-----
SIG
subject = described_class.parse_pem(signature)
expect(subject.verify(message)).to be(true)
end
it "can verify an RSA git signature" do
message = "tree 4b825dc642cb6eb9a060e54bf8d69288fbee4904\nparent 339ca5fd2a41e29236ea793772308bb054b9d81b\nauthor Kevin Jones <vcsjones@github.com> 1637774236 -0500\ncommitter Kevin Jones <vcsjones@github.com> 1637774236 -0500\n\nWHAT\n"
signature = <<~SIG
-----BEGIN SSH SIGNATURE-----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-----END SSH SIGNATURE-----
SIG
subject = described_class.parse_pem(signature)
expect(subject.verify(message)).to be(true)
end
end
describe "#verify" do
Dir["spec/fixtures/signatures/message.*.sig"].each do |path|
name = File.basename(path)
describe name do
let(:signature) { File.read(path) }
let(:data) { File.read("spec/fixtures/signatures/message") }
it "verifies with data" do
subject = described_class.parse_pem(signature)
expect(subject.verify(data)).to be(true)
end
it "does not verify with tampered data" do
bad_data = data + "bad"
subject = described_class.parse_pem(signature)
expect(subject.verify(bad_data)).to be(false)
end
it "parses correctly" do
subject = described_class.parse_pem(signature)
expect(subject.sigversion).to eq(1)
expect(subject.namespace).to eq("file")
expect(subject.reserved).to be_empty
expect(subject.hashalgorithm).to eq("sha512")
end
end
end
end
end