diff --git a/openpgp/keys.go b/openpgp/keys.go index a071353e..6eb88499 100644 --- a/openpgp/keys.go +++ b/openpgp/keys.go @@ -32,6 +32,7 @@ type Entity struct { Subkeys []Subkey SelfSignature *packet.Signature // Direct-key self signature of the PrimaryKey (contains primary key properties in v6) Signatures []*packet.Signature // all (potentially unverified) self-signatures, revocations, and third-party signatures + UserAttribute []*UserAttribute } // An Identity represents an identity claimed by an Entity and zero or more @@ -44,6 +45,13 @@ type Identity struct { Signatures []*packet.Signature // all (potentially unverified) self-signatures, revocations, and third-party signatures } +type UserAttribute struct { + UserAttribute *packet.UserAttribute + SelfSignature *packet.Signature + Revocations []*packet.Signature + Signatures []*packet.Signature // all (potentially unverified) self-signatures, revocations, and third-party signatures +} + // A Subkey is an additional public key in an Entity. Subkeys can be used for // encryption. type Subkey struct { @@ -491,6 +499,10 @@ EachPacket: } switch pkt := p.(type) { + case *packet.UserAttribute: + if err := addUserAttribute(e, packets, pkt); err != nil { + return nil, err + } case *packet.UserId: if err := addUserID(e, packets, pkt); err != nil { return nil, err @@ -726,6 +738,37 @@ func (e *Entity) serializePrivate(w io.Writer, config *packet.Config, reSign boo } } } + + for _, uat := range e.UserAttribute { + if reSign { + UserAttribute := uat.UserAttribute + + err = UserAttribute.Serialize(w) + if err != nil { + return + } + + if uat.SelfSignature == nil { + return goerrors.New("openpgp: can't re-sign identity without valid self-signature") + } + err = uat.SelfSignature.SignUserAttribute(UserAttribute, e.PrimaryKey, e.PrivateKey, config) + if err != nil { + return + } + } else { + err = uat.UserAttribute.Serialize(w) + if err != nil { + return + } + } + for _, sig := range uat.Signatures { + err = sig.Serialize(w) + if err != nil { + return err + } + } + } + for _, subkey := range e.Subkeys { err = subkey.PrivateKey.Serialize(w) if err != nil { @@ -789,6 +832,20 @@ func (e *Entity) Serialize(w io.Writer) error { } } } + + for _, uat := range e.UserAttribute { + err = uat.UserAttribute.Serialize(w) + if err != nil { + return err + } + for _, sig := range uat.Signatures { + err = sig.Serialize(w) + if err != nil { + return err + } + } + } + for _, subkey := range e.Subkeys { err = subkey.PublicKey.Serialize(w) if err != nil { diff --git a/openpgp/packet/public_key.go b/openpgp/packet/public_key.go index f279789d..f3e6fb6e 100644 --- a/openpgp/packet/public_key.go +++ b/openpgp/packet/public_key.go @@ -5,6 +5,7 @@ package packet import ( + "crypto" "crypto/dsa" "crypto/rsa" "crypto/sha1" @@ -991,6 +992,33 @@ func (pk *PublicKey) VerifyUserIdHashTag(id string, sig *Signature) (err error) return VerifyHashTag(preparedHash, sig) } +// userAttributeSignatureHash returns a Hash of the message that needs to be signed +// to assert that pk is a valid key for id. +func userAttributeSignatureHash(uat *UserAttribute, pk *PublicKey, hashFunc crypto.Hash) (h hash.Hash, err error) { + + if !hashFunc.Available() { + return nil, errors.UnsupportedError("hash function") + } + h = hashFunc.New() + + // RFC 4880, section 5.2.4 + pk.SerializeSignaturePrefix(h) + pk.serializeWithoutHeaders(h) + + data := uat.Data() + + var buf [5]byte + buf[0] = 0xd1 + buf[1] = byte(len(data) >> 24) + buf[2] = byte(len(data) >> 16) + buf[3] = byte(len(data) >> 8) + buf[4] = byte(len(data)) + h.Write(buf[:]) + h.Write(data) + + return +} + // VerifyUserIdSignature returns nil iff sig is a valid signature, made by this // public key, that id is the identity of pub. func (pk *PublicKey) VerifyUserIdSignature(id string, pub *PublicKey, sig *Signature) (err error) { @@ -1017,6 +1045,16 @@ func (pk *PublicKey) VerifyDirectKeySignature(sig *Signature) (err error) { return pk.VerifySignature(h, sig) } +// VerifyUserAttributeSignature returns nil iff sig is a valid signature, made by this +// public key, that id is the identity of pub. +func (pk *PublicKey) VerifyUserAttributeSignature(pkt *UserAttribute, pub *PublicKey, sig *Signature) (err error) { + h, err := userAttributeSignatureHash(pkt, pub, sig.Hash) + if err != nil { + return err + } + return pk.VerifySignature(h, sig) +} + // KeyIdString returns the public key's fingerprint in capital hex // (e.g. "6C7EE1B8621CC013"). func (pk *PublicKey) KeyIdString() string { diff --git a/openpgp/packet/signature.go b/openpgp/packet/signature.go index 90097951..a2b33fb6 100644 --- a/openpgp/packet/signature.go +++ b/openpgp/packet/signature.go @@ -996,6 +996,21 @@ func (sig *Signature) SignDirectKeyBinding(pub *PublicKey, priv *PrivateKey, con return sig.Sign(prepareHash, priv, config) } +// SignUserAttribute computes a signature from priv, asserting that pub is a valid +// key for the identity id. On success, the signature is stored in sig. Call +// Serialize to write it out. +// If config is nil, sensible defaults will be used. +func (sig *Signature) SignUserAttribute(uat *UserAttribute, pub *PublicKey, priv *PrivateKey, config *Config) error { + if priv.Dummy() { + return errors.ErrDummyPrivateKey("dummy key found") + } + h, err := userAttributeSignatureHash(uat, pub, sig.Hash) + if err != nil { + return err + } + return sig.Sign(h, priv, config) +} + // CrossSignKey computes a signature from signingKey on pub hashed using hashKey. On success, // the signature is stored in sig. Call Serialize to write it out. // If config is nil, sensible defaults will be used. diff --git a/openpgp/packet/userattribute.go b/openpgp/packet/userattribute.go index 63814ed1..423b20e8 100644 --- a/openpgp/packet/userattribute.go +++ b/openpgp/packet/userattribute.go @@ -9,6 +9,8 @@ import ( "image" "image/jpeg" "io" + + "github.com/ProtonMail/go-crypto/openpgp/errors" ) const UserAttrImageSubpacket = 1 @@ -24,8 +26,32 @@ type UserAttribute struct { // NewUserAttributePhoto creates a user attribute packet // containing the given images. func NewUserAttributePhoto(photos ...image.Image) (uat *UserAttribute, err error) { + var imgBytes [][]byte + for _, photo := range photos { + var buf bytes.Buffer + if err = jpeg.Encode(&buf, photo, nil); err != nil { + return + } + imgBytes = append(imgBytes, buf.Bytes()) + } + return newUserAttributePhotoBytes(imgBytes) +} + +func NewUserAttributePhotoBytes(photos [][]byte) (uat *UserAttribute, err error) { + for _, photo := range photos { + //check jpeg + _, err = jpeg.Decode(bytes.NewBuffer(photo)) + if err != nil { + return nil, errors.InvalidArgumentError("jpeg data err") + } + } + return newUserAttributePhotoBytes(photos) +} + +func newUserAttributePhotoBytes(photos [][]byte) (uat *UserAttribute, err error) { uat = new(UserAttribute) for _, photo := range photos { + var buf bytes.Buffer // RFC 4880, Section 5.12.1. data := []byte{ @@ -38,17 +64,15 @@ func NewUserAttributePhoto(photos ...image.Image) (uat *UserAttribute, err error if _, err = buf.Write(data); err != nil { return } - if err = jpeg.Encode(&buf, photo, nil); err != nil { - return - } + buf.Write(photo) - lengthBuf := make([]byte, 5) - n := serializeSubpacketLength(lengthBuf, len(buf.Bytes())+1) - lengthBuf = lengthBuf[:n] + encodedLength := make([]byte, 5) + n := serializeSubpacketLength(encodedLength, len(buf.Bytes())+1) + encodedLength = encodedLength[:n] uat.Contents = append(uat.Contents, &OpaqueSubpacket{ SubType: UserAttrImageSubpacket, - EncodedLength: lengthBuf, + EncodedLength: encodedLength, Contents: buf.Bytes(), }) } @@ -59,7 +83,13 @@ func NewUserAttributePhoto(photos ...image.Image) (uat *UserAttribute, err error func NewUserAttribute(contents ...*OpaqueSubpacket) *UserAttribute { return &UserAttribute{Contents: contents} } - +func (uat *UserAttribute) Data() []byte { + buf := bytes.NewBuffer(nil) + for _, osp := range uat.Contents { + osp.Serialize(buf) + } + return buf.Bytes() +} func (uat *UserAttribute) parse(r io.Reader) (err error) { // RFC 4880, section 5.13 b, err := io.ReadAll(r) @@ -73,6 +103,7 @@ func (uat *UserAttribute) parse(r io.Reader) (err error) { // Serialize marshals the user attribute to w in the form of an OpenPGP packet, including // header. func (uat *UserAttribute) Serialize(w io.Writer) (err error) { + var buf bytes.Buffer for _, sp := range uat.Contents { err = sp.Serialize(&buf) diff --git a/openpgp/read_write_test_data.go b/openpgp/read_write_test_data.go index 670d6022..33aabf37 100644 --- a/openpgp/read_write_test_data.go +++ b/openpgp/read_write_test_data.go @@ -455,3 +455,697 @@ byVJHvLO/XErtC+GNIJeMg== =liRq -----END PGP MESSAGE----- ` + +// Generated with the above private key +const pgpPhotoPublicOpenPGP2_2_34 = `-----BEGIN PGP PUBLIC KEY BLOCK----- + +mQINBGMAOJkBEADnwgFNWjMe5/JkJ8ItTKsAzZpIbkpL3evG3PKMuP5zJDfLSA4I +Nbfp6ztT13pwAJViFyjT6nDdo2IxCXeTY62CO7dy12sEqMPIuH3/ejh2PP7Y5918 +Dc1Ga1FbX5jlDRyG6E9b6OQ5cItsxj61Kgq/n1Yi5nC/k+k/6cVn8UF8ZkxL74SS +J4aiGopxSFsZlUH4eGsAT8iSudZmRljpaS8c0AoNPI+UgliQufC4yXFSxPNfhLu/ +l9zElYP1HiwaSF/TRPFQxuDjNkVCtgSWwNgnuHN6ddjqyz+EWw7hUGDLGAOeKK9W +J3y9qmjYwAoQR5AQhngKYIHry/RNk/iRmSSzCX0MUPzubzrRwaDmie4Mz0elBfLL +Twzk0MJCSdC6BpKTDHmOAVk/0mjjeByrOM8kvta82KXfaKpmYHlGZaUjDsIvWXF7 +AWYvx57EyyiK6m4kedFF01AcEhsrvUK8fiIjVBDdx69BHtUy9KJFLIGqsjnGa3tN +9dmWcHMVw7jK/IfKbSt6yxK11RceUDlo/VK0vmGrI9PsZuuUcqrJQCFuV6e15ug3 +J/4trosZACIdIGIwzxeix/qPxo3OOH8xWqJ9na4SQ3SFbxcAghXHqkAGmJXeD2VD 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+y6I3G1jAelMCuYsLyH0qvWbZBqWtjm4uyhZGViuszlIsaZCU/rmCvrCrY7OY8iF5 +DMaCrV1hi9yz6IAJeX5Y4hGOZJ3UHtBfj6RcHvM0s+gwDbNCXLqL4dzU+/0lUC6n +GyZNTJ3jYzDojMBSdR4hp1dFZ1xRdsIsNpALCm/X0gwA4gEHZw/MzvHA+Rz2g3H7 +Sswdd0fiAZo4mnEoLXMyt3lIt7hKHSE4ZSzsy3iLKTmBU//ZiQJOBBMBCAA4FiEE +kN9GxwJwGVWgTKu08C9ICv4XF9QFAmMCNHcCGwMFCwkIBwIGFQoJCAsCBBYCAwEC +HgECF4AACgkQ8C9ICv4XF9RGHhAAixXyihflVMNh3i0m1NPqcbQZquLu0SoughFZ +jchkGhziujVQQkr4cQwiCJ5QV3+3onOxtjrqoAwrMKnWsfafVxbBboZyU1t5B4YJ +nUCQr0R5uVPTZ/6vq7PFjWEmORMZHcv6lz+dREfQWN1c29b76fGOuy2G5tzkACoZ +7YYA03oXZsMbU5kxAjLxF7FRKuglFdRQYXC41QuUPIuKppny8q6rM40KvTQT8Hzr +PaNo+3intF3Ygu9aKc92tL5wa42siTREEeDBu0nt1tPLv7ElGLD7pLm8tSSCEPf2 +gvg1jXyXXOxPtfAfKY6tJ0V6u4bW3iR03iAea4uRdzM2aNJp+z0vfYFUcISMmz4s +lmuSMDGDMH9EpdCkBA+vyQpbmPUZaI6fDCbgKHd7HYrT4cWdFXGCDyJ7p3VxeoYz +RuLXmRKiRccXBtF1F/6HzbSpggHBRFT/zkpAG9mrVzUnDuU9BImWI51wPVEkLDuz +K/ITNZy3NE0ayD6yCx/jMnzurQKsjTzNsFbuoZq8eU0JYt1c+mnmEMvuRne4sly5 +WcYaSYOPv6gYVRilfehJYRSYlF9QZ758lsyHLWUeAdnRC5uK9dodUVY2FFBFsOaS 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+dvGF7+ItP32Wg8Zb89oaKpq7WrwaIX8a42yTXiFhFD2SnTuGO8y4eAWq3Lbb8ymm +EWO5KmNwKRyW9plMmudxCW+kGsfQEOHEHmGHMMNTMwEKbjsIw2McNmYWO30EBMkQ +y6I3G1jAelMCuYsLyH0qvWbZBqWtjm4uyhZGViuszlIsaZCU/rmCvrCrY7OY8iF5 +DMaCrV1hi9yz6IAJeX5Y4hGOZJ3UHtBfj6RcHvM0s+gwDbNCXLqL4dzU+/0lUC6n +GyZNTJ3jYzDojMBSdR4hp1dFZ1xRdsIsNpALCm/X0gwA4gEHZw/MzvHA+Rz2g3H7 +Sswdd0fiAZo4mnEoLXMyt3lIt7hKHSE4ZSzsy3iLKTmBU//ZiJkEExYKAEEWIQQt +/1rIQwoCvhlznp31J3BvaZrFogUCYwMEQwIbAwUJA8JnAAULCQgHAgIiAgYVCgkI +CwIEFgIDAQIeBwIXgAAKCRD1J3BvaZrFok/SAP9fP1jYvH1C0iIJzFjNDwyKVWA0 +lDyjDHZP4d0zjBz6FQD/e3c/nTnIMOLacxzBQZz3t3+UII2I0ci1dPd57DbSXQa4 +OARjAwQREgorBgEEAZdVAQUBAQdA8c7lzMCO8qModhUq0t7sgTwsMwY/A9JenOY6 +ncdGPzoDAQgHiH4EGBYKACYWIQQt/1rIQwoCvhlznp31J3BvaZrFogUCYwMEEQIb +DAUJA8JnAAAKCRD1J3BvaZrFol09AP9dlZ5yrouNEpfwpIGlkcZjtqa8fWnBBOMZ +z829BTssIwEA8JPOgk+yssCWu08ksLEY9rvQrVX6cQuSg2KihdLM3gQ= +=vfpo +-----END PGP PUBLIC KEY BLOCK----- +` diff --git a/openpgp/uat.go b/openpgp/uat.go new file mode 100644 index 00000000..3ae1778c --- /dev/null +++ b/openpgp/uat.go @@ -0,0 +1,125 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package openpgp + +import ( + "crypto" + "io" + + "github.com/ProtonMail/go-crypto/openpgp/errors" + "github.com/ProtonMail/go-crypto/openpgp/packet" +) + +func (t *Entity) AddPhoto(jpegBytes []byte, config *packet.Config) error { + creationTime := config.Now() + keyLifetimeSecs := config.KeyLifetime() + + uat, err := packet.NewUserAttributePhotoBytes([][]byte{jpegBytes}) + if err != nil { + return errors.InvalidArgumentError("add photo field contained invalid characters") + } + + primary := t.PrivateKey + + isPrimaryId := len(t.Identities) == 0 + + selfSignature := &packet.Signature{ + Version: primary.PublicKey.Version, + SigType: packet.SigTypePositiveCert, + PubKeyAlgo: primary.PublicKey.PubKeyAlgo, + Hash: config.Hash(), + CreationTime: creationTime, + KeyLifetimeSecs: &keyLifetimeSecs, + IssuerKeyId: &primary.PublicKey.KeyId, + IssuerFingerprint: primary.PublicKey.Fingerprint, + IsPrimaryId: &isPrimaryId, + FlagsValid: true, + FlagSign: true, + FlagCertify: true, + } + + // Set the PreferredHash for the SelfSignature from the packet.Config. + // If it is not the must-implement algorithm from rfc4880bis, append that. + selfSignature.PreferredHash = []uint8{hashToHashId(config.Hash())} + if config.Hash() != crypto.SHA256 { + selfSignature.PreferredHash = append(selfSignature.PreferredHash, hashToHashId(crypto.SHA256)) + } + + // Likewise for DefaultCipher. + selfSignature.PreferredSymmetric = []uint8{uint8(config.Cipher())} + if config.Cipher() != packet.CipherAES128 { + selfSignature.PreferredSymmetric = append(selfSignature.PreferredSymmetric, uint8(packet.CipherAES128)) + } + + // We set CompressionNone as the preferred compression algorithm because + // of compression side channel attacks, then append the configured + // DefaultCompressionAlgo if any is set (to signal support for cases + // where the application knows that using compression is safe). + selfSignature.PreferredCompression = []uint8{uint8(packet.CompressionNone)} + if config.Compression() != packet.CompressionNone { + selfSignature.PreferredCompression = append(selfSignature.PreferredCompression, uint8(config.Compression())) + } + + // User ID binding signature + err = selfSignature.SignUserAttribute(uat, &primary.PublicKey, primary, config) + if err != nil { + return err + } + userAttribute := &UserAttribute{ + UserAttribute: uat, + SelfSignature: selfSignature, + Signatures: []*packet.Signature{selfSignature}, + } + t.UserAttribute = append(t.UserAttribute, userAttribute) + return nil +} + +func addUserAttribute(e *Entity, packets *packet.Reader, pkt *packet.UserAttribute) error { + // Make a new Identity object, that we might wind up throwing away. + // We'll only add it if we get a valid self-signature over this + // userID. + uat := new(UserAttribute) + uat.UserAttribute = pkt + e.UserAttribute = append(e.UserAttribute, uat) + + for { + p, err := packets.Next() + if err == io.EOF { + break + } else if err != nil { + return err + } + + sig, ok := p.(*packet.Signature) + if !ok { + packets.Unread(p) + break + } + + if sig.SigType != packet.SigTypeGenericCert && + sig.SigType != packet.SigTypePersonaCert && + sig.SigType != packet.SigTypeCasualCert && + sig.SigType != packet.SigTypePositiveCert && + sig.SigType != packet.SigTypeCertificationRevocation { + return errors.StructuralError("user ID signature with wrong type") + } + + if sig.CheckKeyIdOrFingerprint(e.PrimaryKey) { + if err = e.PrimaryKey.VerifyUserAttributeSignature(pkt, e.PrimaryKey, sig); err != nil { + return errors.StructuralError("user attribute self-signature invalid: " + err.Error()) + } + if sig.SigType == packet.SigTypeCertificationRevocation { + uat.Revocations = append(uat.Revocations, sig) + } else if uat.SelfSignature == nil || sig.CreationTime.After(uat.SelfSignature.CreationTime) { + uat.SelfSignature = sig + } + uat.Signatures = append(uat.Signatures, sig) + } else { + uat.Signatures = append(uat.Signatures, sig) + } + } + + return nil +} diff --git a/openpgp/uat_test.go b/openpgp/uat_test.go new file mode 100644 index 00000000..30239715 --- /dev/null +++ b/openpgp/uat_test.go @@ -0,0 +1,73 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package openpgp + +import ( + "bytes" + "encoding/base64" + "testing" + + "github.com/ProtonMail/go-crypto/openpgp/armor" + "github.com/ProtonMail/go-crypto/openpgp/packet" +) + +func TestUserattribute_CompatibleGunPG2_3_6(t *testing.T) { + + _, err := ReadArmoredKeyRing(bytes.NewBufferString((pgpPhotoPublicOpenPGP2_3_6))) + if err != nil { + t.Fatal(err) + } +} + +func TestAddPhoto(t *testing.T) { + entity, err := NewEntity("Golang Gopher", "Test Key", "no-reply@golang.com", nil) + if err != nil { + t.Fatal(err) + } + + jpegBase64 := "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" + jpegBytes, err := base64.RawStdEncoding.DecodeString(jpegBase64) + if err != nil { + t.Fatal(err) + } + + err = entity.AddPhoto(jpegBytes, nil) + if err != nil { + t.Fatal(err) + } + + serializedEntity := bytes.NewBuffer(nil) + entity.SerializePrivate(serializedEntity, nil) + + entity2, err := ReadEntity(packet.NewReader(bytes.NewBuffer(serializedEntity.Bytes()))) + if err != nil { + t.Fatal(err) + } + + if len(entity2.UserAttribute) != 1 { + t.Fatal("data err, entity have no uat") + } + + imgBytes := entity2.UserAttribute[0].UserAttribute.ImageData() + if !bytes.Equal(imgBytes[0], jpegBytes) { + t.Fatal("image data not equal") + } + + if true { + + keybuf := bytes.NewBuffer(nil) + writer, err := armor.Encode(keybuf, PrivateKeyType, nil) + if err != nil { + return + } + err = entity.SerializePrivate(writer, nil) + if err != nil { + return + } + writer.Close() + gpgpstr := keybuf.String() + t.Logf("data: %v\n", gpgpstr) + } +}