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https://github.com/wneessen/go-mail.git
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cc4c5bfd04
...
128b2bd32e
18 changed files with 94 additions and 773 deletions
|
|
@ -1,26 +0,0 @@
|
|||
-----BEGIN CERTIFICATE-----
|
||||
MIICAzCCAaqgAwIBAgIUKNWGvPrlzuYHnP4m6nGe60LalYEwCgYIKoZIzj0EAwIw
|
||||
ZTELMAkGA1UEBhMCVVMxDjAMBgNVBAgMBVN0YXRlMQ0wCwYDVQQHDARDaXR5MRcw
|
||||
FQYDVQQKDA5JbnRlcm1lZGlhdGVDQTEeMBwGA1UEAwwVSW50ZXJtZWRpYXRlIEVD
|
||||
RFNBIENBMB4XDTI0MTAxNzEzMDg0N1oXDTI2MTAxNzEzMDg0N1owWzELMAkGA1UE
|
||||
BhMCVVMxDjAMBgNVBAgMBVN0YXRlMQ0wCwYDVQQHDARDaXR5MRIwEAYDVQQKDAlF
|
||||
bmRFbnRpdHkxGTAXBgNVBAMMEEVuZCBFbnRpdHkgRUNEU0EwWTATBgcqhkjOPQIB
|
||||
BggqhkjOPQMBBwNCAATMkQg2RhaDYOWs+Ik/NKgZdwxm4BzagwVou6R73uiwXsRi
|
||||
QgJfhBxp01S3JI4E8AiboFf4uPRnRh0HGl9cUR+po0IwQDAdBgNVHQ4EFgQUz247
|
||||
eAeMuM2We19rA5HnLzyLZEUwHwYDVR0jBBgwFoAU6oYLh690kT1bIB3DUA/SGRim
|
||||
dXswCgYIKoZIzj0EAwIDRwAwRAIgI7cIpGzoiU1IoTYniEGXtK+WXq4Luv8k3BJQ
|
||||
W16RAVsCICnuLaRyH/5nA3mmciAiF5R9PKDzyBnJcPGuCM1tmEpN
|
||||
-----END CERTIFICATE-----
|
||||
-----BEGIN CERTIFICATE-----
|
||||
MIIB/zCCAaSgAwIBAgIURGCUhG09dwZ2DwtWHjQxGTnNT3UwCgYIKoZIzj0EAwIw
|
||||
VTELMAkGA1UEBhMCVVMxDjAMBgNVBAgMBVN0YXRlMQ0wCwYDVQQHDARDaXR5MQ8w
|
||||
DQYDVQQKDAZSb290Q0ExFjAUBgNVBAMMDVJvb3QgRUNEU0EgQ0EwHhcNMjQxMDE3
|
||||
MTMwODMwWhcNMjkxMDE2MTMwODMwWjBlMQswCQYDVQQGEwJVUzEOMAwGA1UECAwF
|
||||
U3RhdGUxDTALBgNVBAcMBENpdHkxFzAVBgNVBAoMDkludGVybWVkaWF0ZUNBMR4w
|
||||
HAYDVQQDDBVJbnRlcm1lZGlhdGUgRUNEU0EgQ0EwWTATBgcqhkjOPQIBBggqhkjO
|
||||
PQMBBwNCAASYjGGvlMFZwnqUc8+jt9I7qRT8IP5gYLPZ7oiV/oaGNinmtzG7UXC/
|
||||
2PEDvdqpMPNw65IaP0d8z+c5lUxneE70o0IwQDAdBgNVHQ4EFgQU6oYLh690kT1b
|
||||
IB3DUA/SGRimdXswHwYDVR0jBBgwFoAUGVvIlDmd/tCejujJcy4xTvgkw3IwCgYI
|
||||
KoZIzj0EAwIDSQAwRgIhAO0rw5JvMu5y8JO958/4FThdjwOsg/IDGryQ3QQM0tw1
|
||||
AiEA07W1o81WIOVLZzwyTJAN8SnpSRIXgV/+ccst2T7s7Zs=
|
||||
-----END CERTIFICATE-----
|
||||
|
|
@ -1,8 +0,0 @@
|
|||
-----BEGIN EC PARAMETERS-----
|
||||
BggqhkjOPQMBBw==
|
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-----END EC PARAMETERS-----
|
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-----BEGIN EC PRIVATE KEY-----
|
||||
MHcCAQEEIG20X4lI7vocwK2W3TYOW+XtQv/bwRWYknvAf2OK8WFJoAoGCCqGSM49
|
||||
AwEHoUQDQgAEzJEINkYWg2DlrPiJPzSoGXcMZuAc2oMFaLuke97osF7EYkICX4Qc
|
||||
adNUtySOBPAIm6BX+Lj0Z0YdBxpfXFEfqQ==
|
||||
-----END EC PRIVATE KEY-----
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|
|
@ -1,3 +0,0 @@
|
|||
// SPDX-FileCopyrightText: Copyright (c) 2022-2024 The go-mail Authors
|
||||
//
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
|
@ -1,3 +0,0 @@
|
|||
// SPDX-FileCopyrightText: Copyright (c) 2022-2024 The go-mail Authors
|
||||
//
|
||||
// SPDX-License-Identifier: MIT
|
||||
3
go.mod
3
go.mod
|
|
@ -7,6 +7,7 @@ module github.com/wneessen/go-mail
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go 1.16
|
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|
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require (
|
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go.mozilla.org/pkcs7 v0.9.0
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golang.org/x/crypto v0.28.0
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golang.org/x/text v0.19.0
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)
|
||||
)
|
||||
|
|
|
|||
2
go.sum
2
go.sum
|
|
@ -20,6 +20,8 @@ golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
|
|||
golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
|
||||
golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44=
|
||||
golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
|
||||
go.mozilla.org/pkcs7 v0.9.0 h1:yM4/HS9dYv7ri2biPtxt8ikvB37a980dg69/pKmS+eI=
|
||||
go.mozilla.org/pkcs7 v0.9.0/go.mod h1:SNgMg+EgDFwmvSmLRTNKC5fegJjB7v23qTQ0XLGUNHk=
|
||||
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
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golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
||||
golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
|
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|
|
|
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42
msg.go
42
msg.go
|
|
@ -7,9 +7,7 @@ package mail
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import (
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"bytes"
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"context"
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"crypto/ecdsa"
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"crypto/rsa"
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"crypto/tls"
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"crypto/x509"
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"embed"
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"errors"
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|
|
@ -340,9 +338,9 @@ func WithNoDefaultUserAgent() MsgOption {
|
|||
}
|
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}
|
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|
||||
// SignWithSMimeRSA configures the Msg to be signed with S/MIME
|
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func (m *Msg) SignWithSMimeRSA(privateKey *rsa.PrivateKey, certificate *x509.Certificate, intermediateCertificate *x509.Certificate) error {
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sMime, err := newSMimeWithRSA(privateKey, certificate, intermediateCertificate)
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// SignWithSMime configures the Msg to be signed with S/MIME
|
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func (m *Msg) SignWithSMime(privateKey *rsa.PrivateKey, certificate *x509.Certificate, intermediateCertificate *x509.Certificate) error {
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sMime, err := newSMime(privateKey, certificate, intermediateCertificate)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
|
@ -350,40 +348,6 @@ func (m *Msg) SignWithSMimeRSA(privateKey *rsa.PrivateKey, certificate *x509.Cer
|
|||
return nil
|
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}
|
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|
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// SignWithSMimeECDSA configures the Msg to be signed with S/MIME
|
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func (m *Msg) SignWithSMimeECDSA(privateKey *ecdsa.PrivateKey, certificate *x509.Certificate, intermediateCertificate *x509.Certificate) error {
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sMime, err := newSMimeWithECDSA(privateKey, certificate, intermediateCertificate)
|
||||
if err != nil {
|
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return err
|
||||
}
|
||||
m.sMime = sMime
|
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return nil
|
||||
}
|
||||
|
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// SignWithTLSCertificate signs the Msg with the provided *tls.certificate.
|
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func (m *Msg) SignWithTLSCertificate(keyPairTlS *tls.Certificate) error {
|
||||
intermediateCertificate, err := x509.ParseCertificate(keyPairTlS.Certificate[1])
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to parse intermediate certificate: %w", err)
|
||||
}
|
||||
|
||||
switch keyPairTlS.PrivateKey.(type) {
|
||||
case *rsa.PrivateKey:
|
||||
if intermediateCertificate == nil {
|
||||
return m.SignWithSMimeRSA(keyPairTlS.PrivateKey.(*rsa.PrivateKey), keyPairTlS.Leaf, nil)
|
||||
}
|
||||
return m.SignWithSMimeRSA(keyPairTlS.PrivateKey.(*rsa.PrivateKey), keyPairTlS.Leaf, intermediateCertificate)
|
||||
|
||||
case *ecdsa.PrivateKey:
|
||||
if intermediateCertificate == nil {
|
||||
return m.SignWithSMimeECDSA(keyPairTlS.PrivateKey.(*ecdsa.PrivateKey), keyPairTlS.Leaf, nil)
|
||||
}
|
||||
return m.SignWithSMimeECDSA(keyPairTlS.PrivateKey.(*ecdsa.PrivateKey), keyPairTlS.Leaf, intermediateCertificate)
|
||||
default:
|
||||
return fmt.Errorf("unsupported private key type: %T", keyPairTlS.PrivateKey)
|
||||
}
|
||||
}
|
||||
|
||||
// This method allows you to specify a character set for the email message. The charset is
|
||||
// important for ensuring that the content of the message is correctly interpreted by
|
||||
// mail clients. Common charset values include UTF-8, ISO-8859-1, and others. If a charset
|
||||
|
|
|
|||
68
msg_test.go
68
msg_test.go
|
|
@ -1909,14 +1909,14 @@ func TestMsg_hasAlt(t *testing.T) {
|
|||
|
||||
// TestMsg_hasAlt tests the hasAlt() method of the Msg with active S/MIME
|
||||
func TestMsg_hasAltWithSMime(t *testing.T) {
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyRSACryptoMaterial()
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyCryptoMaterial()
|
||||
if err != nil {
|
||||
t.Errorf("failed to laod dummy crypto material. Cause: %v", err)
|
||||
}
|
||||
m := NewMsg()
|
||||
m.SetBodyString(TypeTextPlain, "Plain")
|
||||
m.AddAlternativeString(TypeTextHTML, "<b>HTML</b>")
|
||||
if err := m.SignWithSMimeRSA(privateKey, certificate, intermediateCertificate); err != nil {
|
||||
if err := m.SignWithSMime(privateKey, certificate, intermediateCertificate); err != nil {
|
||||
t.Errorf("failed to init smime configuration")
|
||||
}
|
||||
if m.hasAlt() {
|
||||
|
|
@ -1926,12 +1926,12 @@ func TestMsg_hasAltWithSMime(t *testing.T) {
|
|||
|
||||
// TestMsg_hasSMime tests the hasSMime() method of the Msg
|
||||
func TestMsg_hasSMime(t *testing.T) {
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyRSACryptoMaterial()
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyCryptoMaterial()
|
||||
if err != nil {
|
||||
t.Errorf("failed to laod dummy crypto material. Cause: %v", err)
|
||||
}
|
||||
m := NewMsg()
|
||||
if err := m.SignWithSMimeRSA(privateKey, certificate, intermediateCertificate); err != nil {
|
||||
if err := m.SignWithSMime(privateKey, certificate, intermediateCertificate); err != nil {
|
||||
t.Errorf("failed to init smime configuration")
|
||||
}
|
||||
m.SetBodyString(TypeTextPlain, "Plain")
|
||||
|
|
@ -2009,7 +2009,7 @@ func TestMsg_WriteToSkipMiddleware(t *testing.T) {
|
|||
|
||||
// TestMsg_WriteToWithSMIME tests the WriteTo() method of the Msg
|
||||
func TestMsg_WriteToWithSMIME(t *testing.T) {
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyRSACryptoMaterial()
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyCryptoMaterial()
|
||||
if err != nil {
|
||||
t.Errorf("failed to laod dummy crypto material. Cause: %v", err)
|
||||
}
|
||||
|
|
@ -2017,7 +2017,7 @@ func TestMsg_WriteToWithSMIME(t *testing.T) {
|
|||
m := NewMsg()
|
||||
m.Subject("This is a test")
|
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m.SetBodyString(TypeTextPlain, "Plain")
|
||||
if err := m.SignWithSMimeRSA(privateKey, certificate, intermediateCertificate); err != nil {
|
||||
if err := m.SignWithSMime(privateKey, certificate, intermediateCertificate); err != nil {
|
||||
t.Errorf("failed to init smime configuration")
|
||||
}
|
||||
|
||||
|
|
@ -3343,35 +3343,17 @@ func TestNewMsgWithNoDefaultUserAgent(t *testing.T) {
|
|||
}
|
||||
}
|
||||
|
||||
// TestSignWithSMime_ValidRSAKeyPair tests WithSMimeSinging with given rsa key pair
|
||||
func TestSignWithSMime_ValidRSAKeyPair(t *testing.T) {
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyRSACryptoMaterial()
|
||||
// TestSignWithSMime_ValidKeyPair tests WithSMimeSinging with given key pair
|
||||
func TestSignWithSMime_ValidKeyPair(t *testing.T) {
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyCryptoMaterial()
|
||||
if err != nil {
|
||||
t.Errorf("failed to laod dummy crypto material. Cause: %v", err)
|
||||
}
|
||||
m := NewMsg()
|
||||
if err := m.SignWithSMimeRSA(privateKey, certificate, intermediateCertificate); err != nil {
|
||||
if err := m.SignWithSMime(privateKey, certificate, intermediateCertificate); err != nil {
|
||||
t.Errorf("failed to set sMime. Cause: %v", err)
|
||||
}
|
||||
if m.sMime.privateKey.rsa == nil {
|
||||
t.Errorf("WithSMimeSinging() - no private key is given")
|
||||
}
|
||||
if m.sMime.certificate == nil {
|
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t.Errorf("WithSMimeSinging() - no certificate is given")
|
||||
}
|
||||
}
|
||||
|
||||
// TestSignWithSMime_ValidRSAKeyPair tests WithSMimeSinging with given ecdsa key pair
|
||||
func TestSignWithSMime_ValidECDSAKeyPair(t *testing.T) {
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyECDSACryptoMaterial()
|
||||
if err != nil {
|
||||
t.Errorf("failed to laod dummy crypto material. Cause: %v", err)
|
||||
}
|
||||
m := NewMsg()
|
||||
if err := m.SignWithSMimeECDSA(privateKey, certificate, intermediateCertificate); err != nil {
|
||||
t.Errorf("failed to set sMime. Cause: %v", err)
|
||||
}
|
||||
if m.sMime.privateKey.ecdsa == nil {
|
||||
if m.sMime.privateKey == nil {
|
||||
t.Errorf("WithSMimeSinging() - no private key is given")
|
||||
}
|
||||
if m.sMime.certificate == nil {
|
||||
|
|
@ -3383,7 +3365,7 @@ func TestSignWithSMime_ValidECDSAKeyPair(t *testing.T) {
|
|||
func TestSignWithSMime_InvalidPrivateKey(t *testing.T) {
|
||||
m := NewMsg()
|
||||
|
||||
err := m.SignWithSMimeRSA(nil, nil, nil)
|
||||
err := m.SignWithSMime(nil, nil, nil)
|
||||
if !errors.Is(err, ErrInvalidPrivateKey) {
|
||||
t.Errorf("failed to pre-check SignWithSMime method values correctly: %s", err)
|
||||
}
|
||||
|
|
@ -3391,18 +3373,32 @@ func TestSignWithSMime_InvalidPrivateKey(t *testing.T) {
|
|||
|
||||
// TestSignWithSMime_InvalidCertificate tests WithSMimeSinging with given invalid certificate
|
||||
func TestSignWithSMime_InvalidCertificate(t *testing.T) {
|
||||
privateKey, _, _, err := getDummyRSACryptoMaterial()
|
||||
privateKey, _, _, err := getDummyCryptoMaterial()
|
||||
if err != nil {
|
||||
t.Errorf("failed to laod dummy crypto material. Cause: %v", err)
|
||||
}
|
||||
m := NewMsg()
|
||||
|
||||
err = m.SignWithSMimeRSA(privateKey, nil, nil)
|
||||
err = m.SignWithSMime(privateKey, nil, nil)
|
||||
if !errors.Is(err, ErrInvalidCertificate) {
|
||||
t.Errorf("failed to pre-check SignWithSMime method values correctly: %s", err)
|
||||
}
|
||||
}
|
||||
|
||||
// TestSignWithSMime_InvalidIntermediateCertificate tests WithSMimeSinging with given invalid intermediate certificate
|
||||
func TestSignWithSMime_InvalidIntermediateCertificate(t *testing.T) {
|
||||
privateKey, certificate, _, err := getDummyCryptoMaterial()
|
||||
if err != nil {
|
||||
t.Errorf("failed to laod dummy crypto material. Cause: %v", err)
|
||||
}
|
||||
m := NewMsg()
|
||||
|
||||
err = m.SignWithSMime(privateKey, certificate, nil)
|
||||
if !errors.Is(err, ErrInvalidIntermediateCertificate) {
|
||||
t.Errorf("failed to pre-check SignWithSMime method values correctly: %s", err)
|
||||
}
|
||||
}
|
||||
|
||||
// Fuzzing tests
|
||||
func FuzzMsg_Subject(f *testing.F) {
|
||||
f.Add("Testsubject")
|
||||
|
|
@ -3433,12 +3429,12 @@ func FuzzMsg_From(f *testing.F) {
|
|||
|
||||
// TestMsg_createSignaturePart tests the Msg.createSignaturePart method
|
||||
func TestMsg_createSignaturePart(t *testing.T) {
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyRSACryptoMaterial()
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyCryptoMaterial()
|
||||
if err != nil {
|
||||
t.Errorf("failed to laod dummy crypto material. Cause: %v", err)
|
||||
}
|
||||
m := NewMsg()
|
||||
if err := m.SignWithSMimeRSA(privateKey, certificate, intermediateCertificate); err != nil {
|
||||
if err := m.SignWithSMime(privateKey, certificate, intermediateCertificate); err != nil {
|
||||
t.Errorf("failed to init smime configuration")
|
||||
}
|
||||
body := []byte("This is the body")
|
||||
|
|
@ -3463,14 +3459,14 @@ func TestMsg_createSignaturePart(t *testing.T) {
|
|||
|
||||
// TestMsg_signMessage tests the Msg.signMessage method
|
||||
func TestMsg_signMessage(t *testing.T) {
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyRSACryptoMaterial()
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyCryptoMaterial()
|
||||
if err != nil {
|
||||
t.Errorf("failed to laod dummy crypto material. Cause: %v", err)
|
||||
}
|
||||
body := []byte("This is the body")
|
||||
m := NewMsg()
|
||||
m.SetBodyString(TypeTextPlain, string(body))
|
||||
if err := m.SignWithSMimeRSA(privateKey, certificate, intermediateCertificate); err != nil {
|
||||
if err := m.SignWithSMime(privateKey, certificate, intermediateCertificate); err != nil {
|
||||
t.Errorf("failed to init smime configuration")
|
||||
}
|
||||
msg, err := m.signMessage(m)
|
||||
|
|
|
|||
|
|
@ -157,13 +157,13 @@ func TestMsgWriter_writeMsg_PGP(t *testing.T) {
|
|||
|
||||
// TestMsgWriter_writeMsg_SMime tests the writeMsg method of the msgWriter with S/MIME types set
|
||||
func TestMsgWriter_writeMsg_SMime(t *testing.T) {
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyRSACryptoMaterial()
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyCryptoMaterial()
|
||||
if err != nil {
|
||||
t.Errorf("failed to laod dummy crypto material. Cause: %v", err)
|
||||
}
|
||||
|
||||
m := NewMsg()
|
||||
if err := m.SignWithSMimeRSA(privateKey, certificate, intermediateCertificate); err != nil {
|
||||
if err := m.SignWithSMime(privateKey, certificate, intermediateCertificate); err != nil {
|
||||
t.Errorf("failed to init smime configuration")
|
||||
}
|
||||
_ = m.From(`"Toni Tester" <test@example.com>`)
|
||||
|
|
|
|||
388
pkcs7.go
388
pkcs7.go
|
|
@ -1,388 +0,0 @@
|
|||
// SPDX-FileCopyrightText: 2022-2023 The go-mail Authors
|
||||
//
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
package mail
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"crypto"
|
||||
"crypto/rand"
|
||||
"crypto/rsa"
|
||||
"crypto/x509"
|
||||
"crypto/x509/pkix"
|
||||
"encoding/asn1"
|
||||
"errors"
|
||||
"fmt"
|
||||
"math/big"
|
||||
"sort"
|
||||
"time"
|
||||
|
||||
_ "crypto/sha1" // for crypto.SHA1
|
||||
)
|
||||
|
||||
// PKCS7 Represents a PKCS7 structure
|
||||
type PKCS7 struct {
|
||||
Content []byte
|
||||
Certificates []*x509.Certificate
|
||||
CRLs []x509.RevocationList
|
||||
Signers []signerInfo
|
||||
raw interface{}
|
||||
}
|
||||
|
||||
type contentInfo struct {
|
||||
ContentType asn1.ObjectIdentifier
|
||||
Content asn1.RawValue `asn1:"explicit,optional,tag:0"`
|
||||
}
|
||||
|
||||
var (
|
||||
oidData = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 7, 1}
|
||||
oidSignedData = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 7, 2}
|
||||
oidAttributeContentType = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 9, 3}
|
||||
oidAttributeMessageDigest = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 9, 4}
|
||||
oidAttributeSigningTime = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 9, 5}
|
||||
)
|
||||
|
||||
type signedData struct {
|
||||
Version int `asn1:"default:1"`
|
||||
DigestAlgorithmIdentifiers []pkix.AlgorithmIdentifier `asn1:"set"`
|
||||
ContentInfo contentInfo
|
||||
Certificates rawCertificates `asn1:"optional,tag:0"`
|
||||
CRLs []x509.RevocationList `asn1:"optional,tag:1"`
|
||||
SignerInfos []signerInfo `asn1:"set"`
|
||||
}
|
||||
|
||||
type rawCertificates struct {
|
||||
Raw asn1.RawContent
|
||||
}
|
||||
|
||||
type attribute struct {
|
||||
Type asn1.ObjectIdentifier
|
||||
Value asn1.RawValue `asn1:"set"`
|
||||
}
|
||||
|
||||
type issuerAndSerial struct {
|
||||
IssuerName asn1.RawValue
|
||||
SerialNumber *big.Int
|
||||
}
|
||||
|
||||
// MessageDigestMismatchError is returned when the signer data digest does not
|
||||
// match the computed digest for the contained content
|
||||
type MessageDigestMismatchError struct {
|
||||
ExpectedDigest []byte
|
||||
ActualDigest []byte
|
||||
}
|
||||
|
||||
func (err *MessageDigestMismatchError) Error() string {
|
||||
return fmt.Sprintf("pkcs7: Message digest mismatch\n\tExpected: %X\n\tActual : %X", err.ExpectedDigest, err.ActualDigest)
|
||||
}
|
||||
|
||||
type signerInfo struct {
|
||||
Version int `asn1:"default:1"`
|
||||
IssuerAndSerialNumber issuerAndSerial
|
||||
DigestAlgorithm pkix.AlgorithmIdentifier
|
||||
AuthenticatedAttributes []attribute `asn1:"optional,tag:0"`
|
||||
DigestEncryptionAlgorithm pkix.AlgorithmIdentifier
|
||||
EncryptedDigest []byte
|
||||
UnauthenticatedAttributes []attribute `asn1:"optional,tag:1"`
|
||||
}
|
||||
|
||||
func (raw rawCertificates) Parse() ([]*x509.Certificate, error) {
|
||||
if len(raw.Raw) == 0 {
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
var val asn1.RawValue
|
||||
if _, err := asn1.Unmarshal(raw.Raw, &val); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return x509.ParseCertificates(val.Bytes)
|
||||
}
|
||||
|
||||
func marshalAttributes(attrs []attribute) ([]byte, error) {
|
||||
encodedAttributes, err := asn1.Marshal(struct {
|
||||
A []attribute `asn1:"set"`
|
||||
}{A: attrs})
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// Remove the leading sequence octets
|
||||
var raw asn1.RawValue
|
||||
if _, err := asn1.Unmarshal(encodedAttributes, &raw); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return raw.Bytes, nil
|
||||
}
|
||||
|
||||
var (
|
||||
oidDigestAlgorithmSHA1 = asn1.ObjectIdentifier{1, 3, 14, 3, 2, 26}
|
||||
oidSignatureSHA1WithRSA = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 5}
|
||||
)
|
||||
|
||||
func getCertFromCertsByIssuerAndSerial(certs []*x509.Certificate, ias issuerAndSerial) *x509.Certificate {
|
||||
for _, cert := range certs {
|
||||
if isCertMatchForIssuerAndSerial(cert, ias) {
|
||||
return cert
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// GetOnlySigner returns an x509.Certificate for the first signer of the signed
|
||||
// data payload. If there are more or less than one signer, nil is returned
|
||||
func (p7 *PKCS7) GetOnlySigner() *x509.Certificate {
|
||||
if len(p7.Signers) != 1 {
|
||||
return nil
|
||||
}
|
||||
signer := p7.Signers[0]
|
||||
return getCertFromCertsByIssuerAndSerial(p7.Certificates, signer.IssuerAndSerialNumber)
|
||||
}
|
||||
|
||||
// ErrUnsupportedAlgorithm tells you when our quick dev assumptions have failed
|
||||
var ErrUnsupportedAlgorithm = errors.New("pkcs7: cannot decrypt data: only RSA, DES, DES-EDE3, AES-256-CBC and AES-128-GCM supported")
|
||||
|
||||
func isCertMatchForIssuerAndSerial(cert *x509.Certificate, ias issuerAndSerial) bool {
|
||||
return cert.SerialNumber.Cmp(ias.SerialNumber) == 0 && bytes.Equal(cert.RawIssuer, ias.IssuerName.FullBytes)
|
||||
}
|
||||
|
||||
func unmarshalAttribute(attrs []attribute, attributeType asn1.ObjectIdentifier, out interface{}) error {
|
||||
for _, attr := range attrs {
|
||||
if attr.Type.Equal(attributeType) {
|
||||
_, err := asn1.Unmarshal(attr.Value.Bytes, out)
|
||||
return err
|
||||
}
|
||||
}
|
||||
return errors.New("pkcs7: attribute type not in attributes")
|
||||
}
|
||||
|
||||
// UnmarshalSignedAttribute decodes a single attribute from the signer info
|
||||
func (p7 *PKCS7) UnmarshalSignedAttribute(attributeType asn1.ObjectIdentifier, out interface{}) error {
|
||||
sd, ok := p7.raw.(signedData)
|
||||
if !ok {
|
||||
return errors.New("pkcs7: payload is not signedData content")
|
||||
}
|
||||
if len(sd.SignerInfos) < 1 {
|
||||
return errors.New("pkcs7: payload has no signers")
|
||||
}
|
||||
attributes := sd.SignerInfos[0].AuthenticatedAttributes
|
||||
return unmarshalAttribute(attributes, attributeType, out)
|
||||
}
|
||||
|
||||
// SignedData is an opaque data structure for creating signed data payloads
|
||||
type SignedData struct {
|
||||
sd signedData
|
||||
certs []*x509.Certificate
|
||||
messageDigest []byte
|
||||
}
|
||||
|
||||
// Attribute represents a key value pair attribute. Value must be marshalable byte
|
||||
// `encoding/asn1`
|
||||
type Attribute struct {
|
||||
Type asn1.ObjectIdentifier
|
||||
Value interface{}
|
||||
}
|
||||
|
||||
// SignerInfoConfig are optional values to include when adding a signer
|
||||
type SignerInfoConfig struct {
|
||||
ExtraSignedAttributes []Attribute
|
||||
}
|
||||
|
||||
// newSignedData initializes a SignedData with content
|
||||
func newSignedData(data []byte) (*SignedData, error) {
|
||||
content, err := asn1.Marshal(data)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
ci := contentInfo{
|
||||
ContentType: oidData,
|
||||
Content: asn1.RawValue{Class: 2, Tag: 0, Bytes: content, IsCompound: true},
|
||||
}
|
||||
digAlg := pkix.AlgorithmIdentifier{
|
||||
Algorithm: oidDigestAlgorithmSHA1,
|
||||
}
|
||||
h := crypto.SHA1.New()
|
||||
h.Write(data)
|
||||
md := h.Sum(nil)
|
||||
sd := signedData{
|
||||
ContentInfo: ci,
|
||||
Version: 1,
|
||||
DigestAlgorithmIdentifiers: []pkix.AlgorithmIdentifier{digAlg},
|
||||
}
|
||||
return &SignedData{sd: sd, messageDigest: md}, nil
|
||||
}
|
||||
|
||||
type attributes struct {
|
||||
types []asn1.ObjectIdentifier
|
||||
values []interface{}
|
||||
}
|
||||
|
||||
// Add adds the attribute, maintaining insertion order
|
||||
func (attrs *attributes) Add(attrType asn1.ObjectIdentifier, value interface{}) {
|
||||
attrs.types = append(attrs.types, attrType)
|
||||
attrs.values = append(attrs.values, value)
|
||||
}
|
||||
|
||||
type sortableAttribute struct {
|
||||
SortKey []byte
|
||||
Attribute attribute
|
||||
}
|
||||
|
||||
type attributeSet []sortableAttribute
|
||||
|
||||
func (sa attributeSet) Len() int {
|
||||
return len(sa)
|
||||
}
|
||||
|
||||
func (sa attributeSet) Less(i, j int) bool {
|
||||
return bytes.Compare(sa[i].SortKey, sa[j].SortKey) < 0
|
||||
}
|
||||
|
||||
func (sa attributeSet) Swap(i, j int) {
|
||||
sa[i], sa[j] = sa[j], sa[i]
|
||||
}
|
||||
|
||||
func (sa attributeSet) attributes() []attribute {
|
||||
attrs := make([]attribute, len(sa))
|
||||
for i, attr := range sa {
|
||||
attrs[i] = attr.Attribute
|
||||
}
|
||||
return attrs
|
||||
}
|
||||
|
||||
func (attrs *attributes) forMarshaling() ([]attribute, error) {
|
||||
sortables := make(attributeSet, len(attrs.types))
|
||||
for i := range sortables {
|
||||
attrType := attrs.types[i]
|
||||
attrValue := attrs.values[i]
|
||||
asn1Value, err := asn1.Marshal(attrValue)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
attr := attribute{
|
||||
Type: attrType,
|
||||
Value: asn1.RawValue{Tag: 17, IsCompound: true, Bytes: asn1Value}, // 17 == SET tag
|
||||
}
|
||||
encoded, err := asn1.Marshal(attr)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
sortables[i] = sortableAttribute{
|
||||
SortKey: encoded,
|
||||
Attribute: attr,
|
||||
}
|
||||
}
|
||||
sort.Sort(sortables)
|
||||
return sortables.attributes(), nil
|
||||
}
|
||||
|
||||
// addSigner signs attributes about the content and adds certificate to payload
|
||||
func (sd *SignedData) addSigner(cert *x509.Certificate, pkey crypto.PrivateKey, config SignerInfoConfig) error {
|
||||
attrs := &attributes{}
|
||||
attrs.Add(oidAttributeContentType, sd.sd.ContentInfo.ContentType)
|
||||
attrs.Add(oidAttributeMessageDigest, sd.messageDigest)
|
||||
attrs.Add(oidAttributeSigningTime, time.Now())
|
||||
for _, attr := range config.ExtraSignedAttributes {
|
||||
attrs.Add(attr.Type, attr.Value)
|
||||
}
|
||||
finalAttrs, err := attrs.forMarshaling()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
signature, err := signAttributes(finalAttrs, pkey, crypto.SHA1)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
ias, err := cert2issuerAndSerial(cert)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
signer := signerInfo{
|
||||
AuthenticatedAttributes: finalAttrs,
|
||||
DigestAlgorithm: pkix.AlgorithmIdentifier{Algorithm: oidDigestAlgorithmSHA1},
|
||||
DigestEncryptionAlgorithm: pkix.AlgorithmIdentifier{Algorithm: oidSignatureSHA1WithRSA},
|
||||
IssuerAndSerialNumber: ias,
|
||||
EncryptedDigest: signature,
|
||||
Version: 1,
|
||||
}
|
||||
// create signature of signed attributes
|
||||
sd.certs = append(sd.certs, cert)
|
||||
sd.sd.SignerInfos = append(sd.sd.SignerInfos, signer)
|
||||
return nil
|
||||
}
|
||||
|
||||
// addCertificate adds the certificate to the payload. Useful for parent certificates
|
||||
func (sd *SignedData) addCertificate(cert *x509.Certificate) {
|
||||
sd.certs = append(sd.certs, cert)
|
||||
}
|
||||
|
||||
// detach removes content from the signed data struct to make it a detached signature.
|
||||
// This must be called right before Finish()
|
||||
func (sd *SignedData) detach() {
|
||||
sd.sd.ContentInfo = contentInfo{ContentType: oidData}
|
||||
}
|
||||
|
||||
// finish marshals the content and its signers
|
||||
func (sd *SignedData) finish() ([]byte, error) {
|
||||
sd.sd.Certificates = marshalCertificates(sd.certs)
|
||||
inner, err := asn1.Marshal(sd.sd)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
outer := contentInfo{
|
||||
ContentType: oidSignedData,
|
||||
Content: asn1.RawValue{Class: 2, Tag: 0, Bytes: inner, IsCompound: true},
|
||||
}
|
||||
return asn1.Marshal(outer)
|
||||
}
|
||||
|
||||
func cert2issuerAndSerial(cert *x509.Certificate) (issuerAndSerial, error) {
|
||||
var ias issuerAndSerial
|
||||
// The issuer RDNSequence has to match exactly the sequence in the certificate
|
||||
// We cannot use cert.Issuer.ToRDNSequence() here since it mangles the sequence
|
||||
ias.IssuerName = asn1.RawValue{FullBytes: cert.RawIssuer}
|
||||
ias.SerialNumber = cert.SerialNumber
|
||||
|
||||
return ias, nil
|
||||
}
|
||||
|
||||
// signs the DER encoded form of the attributes with the private key
|
||||
func signAttributes(attrs []attribute, pkey crypto.PrivateKey, hash crypto.Hash) ([]byte, error) {
|
||||
attrBytes, err := marshalAttributes(attrs)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
h := hash.New()
|
||||
h.Write(attrBytes)
|
||||
hashed := h.Sum(nil)
|
||||
switch priv := pkey.(type) {
|
||||
case *rsa.PrivateKey:
|
||||
return rsa.SignPKCS1v15(rand.Reader, priv, crypto.SHA1, hashed)
|
||||
}
|
||||
return nil, ErrUnsupportedAlgorithm
|
||||
}
|
||||
|
||||
// concats and wraps the certificates in the RawValue structure
|
||||
func marshalCertificates(certs []*x509.Certificate) rawCertificates {
|
||||
var buf bytes.Buffer
|
||||
for _, cert := range certs {
|
||||
buf.Write(cert.Raw)
|
||||
}
|
||||
rawCerts, _ := marshalCertificateBytes(buf.Bytes())
|
||||
return rawCerts
|
||||
}
|
||||
|
||||
// Even though, the tag & length are stripped out during marshalling the
|
||||
// RawContent, we have to encode it into the RawContent. If its missing,
|
||||
// then `asn1.Marshal()` will strip out the certificate wrapper instead.
|
||||
func marshalCertificateBytes(certs []byte) (rawCertificates, error) {
|
||||
val := asn1.RawValue{Bytes: certs, Class: 2, Tag: 0, IsCompound: true}
|
||||
b, err := asn1.Marshal(val)
|
||||
if err != nil {
|
||||
return rawCertificates{}, err
|
||||
}
|
||||
return rawCertificates{Raw: b}, nil
|
||||
}
|
||||
123
pkcs7_test.go
123
pkcs7_test.go
|
|
@ -1,123 +0,0 @@
|
|||
// SPDX-FileCopyrightText: 2022-2023 The go-mail Authors
|
||||
//
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
package mail
|
||||
|
||||
import (
|
||||
"crypto"
|
||||
"crypto/rand"
|
||||
"crypto/rsa"
|
||||
"crypto/x509"
|
||||
"crypto/x509/pkix"
|
||||
"encoding/pem"
|
||||
"fmt"
|
||||
"math/big"
|
||||
"os"
|
||||
"testing"
|
||||
"time"
|
||||
)
|
||||
|
||||
// TestSign_E2E tests S/MIME singing as e2e
|
||||
func TestSign_E2E(t *testing.T) {
|
||||
cert, err := createTestCertificate()
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
content := []byte("Hello World")
|
||||
for _, testDetach := range []bool{false, true} {
|
||||
toBeSigned, err := newSignedData(content)
|
||||
if err != nil {
|
||||
t.Fatalf("Cannot initialize signed data: %s", err)
|
||||
}
|
||||
if err := toBeSigned.addSigner(cert.Certificate, cert.PrivateKey, SignerInfoConfig{}); err != nil {
|
||||
t.Fatalf("Cannot add signer: %s", err)
|
||||
}
|
||||
if testDetach {
|
||||
t.Log("Testing detached signature")
|
||||
toBeSigned.detach()
|
||||
} else {
|
||||
t.Log("Testing attached signature")
|
||||
}
|
||||
signed, err := toBeSigned.finish()
|
||||
if err != nil {
|
||||
t.Fatalf("Cannot finish signing data: %s", err)
|
||||
}
|
||||
if err := pem.Encode(os.Stdout, &pem.Block{Type: "PKCS7", Bytes: signed}); err != nil {
|
||||
t.Fatalf("Cannot write signed data: %s", err)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type certKeyPair struct {
|
||||
Certificate *x509.Certificate
|
||||
PrivateKey *rsa.PrivateKey
|
||||
}
|
||||
|
||||
func createTestCertificate() (*certKeyPair, error) {
|
||||
signer, err := createTestCertificateByIssuer("Eddard Stark", nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
fmt.Println("Created root cert")
|
||||
if err := pem.Encode(os.Stdout, &pem.Block{Type: "CERTIFICATE", Bytes: signer.Certificate.Raw}); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
pair, err := createTestCertificateByIssuer("Jon Snow", signer)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
fmt.Println("Created signer cert")
|
||||
if err := pem.Encode(os.Stdout, &pem.Block{Type: "CERTIFICATE", Bytes: pair.Certificate.Raw}); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return pair, nil
|
||||
}
|
||||
|
||||
func createTestCertificateByIssuer(name string, issuer *certKeyPair) (*certKeyPair, error) {
|
||||
priv, err := rsa.GenerateKey(rand.Reader, 1024)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
serialNumberLimit := new(big.Int).Lsh(big.NewInt(1), 32)
|
||||
serialNumber, err := rand.Int(rand.Reader, serialNumberLimit)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
template := x509.Certificate{
|
||||
SerialNumber: serialNumber,
|
||||
SignatureAlgorithm: x509.SHA256WithRSA,
|
||||
Subject: pkix.Name{
|
||||
CommonName: name,
|
||||
Organization: []string{"Acme Co"},
|
||||
},
|
||||
NotBefore: time.Now(),
|
||||
NotAfter: time.Now().AddDate(1, 0, 0),
|
||||
KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
|
||||
ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageEmailProtection},
|
||||
}
|
||||
var issuerCert *x509.Certificate
|
||||
var issuerKey crypto.PrivateKey
|
||||
if issuer != nil {
|
||||
issuerCert = issuer.Certificate
|
||||
issuerKey = issuer.PrivateKey
|
||||
} else {
|
||||
template.IsCA = true
|
||||
template.KeyUsage |= x509.KeyUsageCertSign
|
||||
issuerCert = &template
|
||||
issuerKey = priv
|
||||
}
|
||||
cert, err := x509.CreateCertificate(rand.Reader, &template, issuerCert, priv.Public(), issuerKey)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
leaf, err := x509.ParseCertificate(cert)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &certKeyPair{
|
||||
Certificate: leaf,
|
||||
PrivateKey: priv,
|
||||
}, nil
|
||||
}
|
||||
96
smime.go
96
smime.go
|
|
@ -6,14 +6,14 @@ package mail
|
|||
|
||||
import (
|
||||
"bytes"
|
||||
"crypto"
|
||||
"crypto/ecdsa"
|
||||
"crypto/rsa"
|
||||
"crypto/x509"
|
||||
"encoding/pem"
|
||||
"errors"
|
||||
"fmt"
|
||||
"strings"
|
||||
|
||||
"go.mozilla.org/pkcs7"
|
||||
)
|
||||
|
||||
var (
|
||||
|
|
@ -22,34 +22,35 @@ var (
|
|||
|
||||
// ErrInvalidCertificate should be used if the certificate is invalid
|
||||
ErrInvalidCertificate = errors.New("invalid certificate")
|
||||
|
||||
// ErrInvalidIntermediateCertificate should be used if the intermediate certificate is invalid
|
||||
ErrInvalidIntermediateCertificate = errors.New("invalid intermediate certificate")
|
||||
|
||||
// ErrCouldNotInitialize should be used if the signed data could not initialize
|
||||
ErrCouldNotInitialize = errors.New("could not initialize signed data")
|
||||
|
||||
// ErrCouldNotAddSigner should be used if the signer could not be added
|
||||
ErrCouldNotAddSigner = errors.New("could not add signer message")
|
||||
|
||||
// ErrCouldNotFinishSigning should be used if the signing could not be finished
|
||||
ErrCouldNotFinishSigning = errors.New("could not finish signing")
|
||||
|
||||
// ErrCouldNoEncodeToPEM should be used if the signature could not be encoded to PEM
|
||||
ErrCouldNoEncodeToPEM = errors.New("could not encode to PEM")
|
||||
)
|
||||
|
||||
// privateKeyHolder is the representation of a private key
|
||||
type privateKeyHolder struct {
|
||||
ecdsa *ecdsa.PrivateKey
|
||||
rsa *rsa.PrivateKey
|
||||
}
|
||||
|
||||
// get returns the private key of the privateKeyHolder
|
||||
func (p privateKeyHolder) get() crypto.PrivateKey {
|
||||
if p.ecdsa != nil {
|
||||
return p.ecdsa
|
||||
}
|
||||
return p.rsa
|
||||
}
|
||||
|
||||
// SMime is used to sign messages with S/MIME
|
||||
type SMime struct {
|
||||
privateKey privateKeyHolder
|
||||
privateKey *rsa.PrivateKey
|
||||
certificate *x509.Certificate
|
||||
intermediateCertificate *x509.Certificate
|
||||
}
|
||||
|
||||
// newSMimeWithRSA construct a new instance of SMime with provided parameters
|
||||
// NewSMime construct a new instance of SMime with provided parameters
|
||||
// privateKey as *rsa.PrivateKey
|
||||
// certificate as *x509.Certificate
|
||||
// intermediateCertificate (optional) as *x509.Certificate
|
||||
func newSMimeWithRSA(privateKey *rsa.PrivateKey, certificate *x509.Certificate, intermediateCertificate *x509.Certificate) (*SMime, error) {
|
||||
// intermediateCertificate as *x509.Certificate
|
||||
func newSMime(privateKey *rsa.PrivateKey, certificate *x509.Certificate, intermediateCertificate *x509.Certificate) (*SMime, error) {
|
||||
if privateKey == nil {
|
||||
return nil, ErrInvalidPrivateKey
|
||||
}
|
||||
|
|
@ -58,28 +59,12 @@ func newSMimeWithRSA(privateKey *rsa.PrivateKey, certificate *x509.Certificate,
|
|||
return nil, ErrInvalidCertificate
|
||||
}
|
||||
|
||||
return &SMime{
|
||||
privateKey: privateKeyHolder{rsa: privateKey},
|
||||
certificate: certificate,
|
||||
intermediateCertificate: intermediateCertificate,
|
||||
}, nil
|
||||
}
|
||||
|
||||
// newSMimeWithECDSA construct a new instance of SMime with provided parameters
|
||||
// privateKey as *ecdsa.PrivateKey
|
||||
// certificate as *x509.Certificate
|
||||
// intermediateCertificate (optional) as *x509.Certificate
|
||||
func newSMimeWithECDSA(privateKey *ecdsa.PrivateKey, certificate *x509.Certificate, intermediateCertificate *x509.Certificate) (*SMime, error) {
|
||||
if privateKey == nil {
|
||||
return nil, ErrInvalidPrivateKey
|
||||
}
|
||||
|
||||
if certificate == nil {
|
||||
return nil, ErrInvalidCertificate
|
||||
if intermediateCertificate == nil {
|
||||
return nil, ErrInvalidIntermediateCertificate
|
||||
}
|
||||
|
||||
return &SMime{
|
||||
privateKey: privateKeyHolder{ecdsa: privateKey},
|
||||
privateKey: privateKey,
|
||||
certificate: certificate,
|
||||
intermediateCertificate: intermediateCertificate,
|
||||
}, nil
|
||||
|
|
@ -90,29 +75,26 @@ func (sm *SMime) signMessage(message string) (*string, error) {
|
|||
lines := parseLines([]byte(message))
|
||||
toBeSigned := lines.bytesFromLines([]byte("\r\n"))
|
||||
|
||||
signedData, err := newSignedData(toBeSigned)
|
||||
if err != nil || signedData == nil {
|
||||
return nil, fmt.Errorf("could not initialize signed data: %w", err)
|
||||
}
|
||||
|
||||
if err = signedData.addSigner(sm.certificate, sm.privateKey.get(), SignerInfoConfig{}); err != nil {
|
||||
return nil, fmt.Errorf("could not add signer message: %w", err)
|
||||
}
|
||||
|
||||
if sm.intermediateCertificate != nil {
|
||||
signedData.addCertificate(sm.intermediateCertificate)
|
||||
}
|
||||
|
||||
signedData.detach()
|
||||
|
||||
signatureDER, err := signedData.finish()
|
||||
signedData, err := pkcs7.NewSignedData(toBeSigned)
|
||||
signedData.SetDigestAlgorithm(pkcs7.OIDDigestAlgorithmSHA256)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("could not finish signing: %w", err)
|
||||
return nil, ErrCouldNotInitialize
|
||||
}
|
||||
|
||||
if err = signedData.AddSignerChain(sm.certificate, sm.privateKey, []*x509.Certificate{sm.intermediateCertificate}, pkcs7.SignerInfoConfig{}); err != nil {
|
||||
return nil, ErrCouldNotAddSigner
|
||||
}
|
||||
|
||||
signedData.Detach()
|
||||
|
||||
signatureDER, err := signedData.Finish()
|
||||
if err != nil {
|
||||
return nil, ErrCouldNotFinishSigning
|
||||
}
|
||||
|
||||
pemMsg, err := encodeToPEM(signatureDER)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("could not encode to PEM: %w", err)
|
||||
return nil, ErrCouldNoEncodeToPEM
|
||||
}
|
||||
|
||||
return pemMsg, nil
|
||||
|
|
|
|||
|
|
@ -6,72 +6,25 @@ package mail
|
|||
|
||||
import (
|
||||
"bytes"
|
||||
"crypto/ecdsa"
|
||||
"crypto/rsa"
|
||||
"encoding/base64"
|
||||
"fmt"
|
||||
"strings"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestGet_RSA(t *testing.T) {
|
||||
p := privateKeyHolder{
|
||||
ecdsa: nil,
|
||||
rsa: &rsa.PrivateKey{},
|
||||
}
|
||||
|
||||
if p.get() == nil {
|
||||
t.Errorf("get() did not return the correct private key")
|
||||
}
|
||||
}
|
||||
|
||||
func TestGet_ECDSA(t *testing.T) {
|
||||
p := privateKeyHolder{
|
||||
ecdsa: &ecdsa.PrivateKey{},
|
||||
rsa: nil,
|
||||
}
|
||||
|
||||
if p.get() == nil {
|
||||
t.Errorf("get() did not return the correct private key")
|
||||
}
|
||||
}
|
||||
|
||||
// TestNewSMimeWithRSA tests the newSMime method with RSA crypto material
|
||||
func TestNewSMimeWithRSA(t *testing.T) {
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyRSACryptoMaterial()
|
||||
// TestNewSMime tests the newSMime method
|
||||
func TestNewSMime(t *testing.T) {
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyCryptoMaterial()
|
||||
if err != nil {
|
||||
t.Errorf("Error getting dummy crypto material: %s", err)
|
||||
}
|
||||
|
||||
sMime, err := newSMimeWithRSA(privateKey, certificate, intermediateCertificate)
|
||||
sMime, err := newSMime(privateKey, certificate, intermediateCertificate)
|
||||
if err != nil {
|
||||
t.Errorf("Error creating new SMime from keyPair: %s", err)
|
||||
}
|
||||
|
||||
if sMime.privateKey.rsa != privateKey {
|
||||
t.Errorf("NewSMime() did not return the same private key")
|
||||
}
|
||||
if sMime.certificate != certificate {
|
||||
t.Errorf("NewSMime() did not return the same certificate")
|
||||
}
|
||||
if sMime.intermediateCertificate != intermediateCertificate {
|
||||
t.Errorf("NewSMime() did not return the same intermedidate certificate")
|
||||
}
|
||||
}
|
||||
|
||||
// TestNewSMimeWithECDSA tests the newSMime method with ECDSA crypto material
|
||||
func TestNewSMimeWithECDSA(t *testing.T) {
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyECDSACryptoMaterial()
|
||||
if err != nil {
|
||||
t.Errorf("Error getting dummy crypto material: %s", err)
|
||||
}
|
||||
|
||||
sMime, err := newSMimeWithECDSA(privateKey, certificate, intermediateCertificate)
|
||||
if err != nil {
|
||||
t.Errorf("Error creating new SMime from keyPair: %s", err)
|
||||
}
|
||||
|
||||
if sMime.privateKey.ecdsa != privateKey {
|
||||
if sMime.privateKey != privateKey {
|
||||
t.Errorf("NewSMime() did not return the same private key")
|
||||
}
|
||||
if sMime.certificate != certificate {
|
||||
|
|
@ -84,12 +37,12 @@ func TestNewSMimeWithECDSA(t *testing.T) {
|
|||
|
||||
// TestSign tests the sign method
|
||||
func TestSign(t *testing.T) {
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyRSACryptoMaterial()
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyCryptoMaterial()
|
||||
if err != nil {
|
||||
t.Errorf("Error getting dummy crypto material: %s", err)
|
||||
}
|
||||
|
||||
sMime, err := newSMimeWithRSA(privateKey, certificate, intermediateCertificate)
|
||||
sMime, err := newSMime(privateKey, certificate, intermediateCertificate)
|
||||
if err != nil {
|
||||
t.Errorf("Error creating new SMime from keyPair: %s", err)
|
||||
}
|
||||
|
|
@ -107,12 +60,12 @@ func TestSign(t *testing.T) {
|
|||
|
||||
// TestPrepareMessage tests the createMessage method
|
||||
func TestPrepareMessage(t *testing.T) {
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyRSACryptoMaterial()
|
||||
privateKey, certificate, intermediateCertificate, err := getDummyCryptoMaterial()
|
||||
if err != nil {
|
||||
t.Errorf("Error getting dummy crypto material: %s", err)
|
||||
}
|
||||
|
||||
sMime, err := newSMimeWithRSA(privateKey, certificate, intermediateCertificate)
|
||||
sMime, err := newSMime(privateKey, certificate, intermediateCertificate)
|
||||
if err != nil {
|
||||
t.Errorf("Error creating new SMime from keyPair: %s", err)
|
||||
}
|
||||
|
|
|
|||
36
util_test.go
36
util_test.go
|
|
@ -5,23 +5,19 @@
|
|||
package mail
|
||||
|
||||
import (
|
||||
"crypto/ecdsa"
|
||||
"crypto/rsa"
|
||||
"crypto/tls"
|
||||
"crypto/x509"
|
||||
)
|
||||
|
||||
const (
|
||||
certRSAFilePath = "dummy-chain-cert-rsa.pem"
|
||||
keyRSAFilePath = "dummy-child-key-rsa.pem"
|
||||
|
||||
certECDSAFilePath = "dummy-chain-cert-ecdsa.pem"
|
||||
keyECDSAFilePath = "dummy-child-key-ecdsa.pem"
|
||||
certFilePath = "dummy-chain-cert.pem"
|
||||
keyFilePath = "dummy-child-key.pem"
|
||||
)
|
||||
|
||||
// getDummyRSACryptoMaterial loads a certificate (RSA) and the associated private key (ECDSA) form local disk for testing purposes
|
||||
func getDummyRSACryptoMaterial() (*rsa.PrivateKey, *x509.Certificate, *x509.Certificate, error) {
|
||||
keyPair, err := tls.LoadX509KeyPair(certRSAFilePath, keyRSAFilePath)
|
||||
// getDummyCryptoMaterial loads a certificate and a private key form local disk for testing purposes
|
||||
func getDummyCryptoMaterial() (*rsa.PrivateKey, *x509.Certificate, *x509.Certificate, error) {
|
||||
keyPair, err := tls.LoadX509KeyPair(certFilePath, keyFilePath)
|
||||
if err != nil {
|
||||
return nil, nil, nil, err
|
||||
}
|
||||
|
|
@ -40,25 +36,3 @@ func getDummyRSACryptoMaterial() (*rsa.PrivateKey, *x509.Certificate, *x509.Cert
|
|||
|
||||
return privateKey, certificate, intermediateCertificate, nil
|
||||
}
|
||||
|
||||
// getDummyECDSACryptoMaterial loads a certificate (ECDSA) and the associated private key (ECDSA) form local disk for testing purposes
|
||||
func getDummyECDSACryptoMaterial() (*ecdsa.PrivateKey, *x509.Certificate, *x509.Certificate, error) {
|
||||
keyPair, err := tls.LoadX509KeyPair(certECDSAFilePath, keyECDSAFilePath)
|
||||
if err != nil {
|
||||
return nil, nil, nil, err
|
||||
}
|
||||
|
||||
privateKey := keyPair.PrivateKey.(*ecdsa.PrivateKey)
|
||||
|
||||
certificate, err := x509.ParseCertificate(keyPair.Certificate[0])
|
||||
if err != nil {
|
||||
return nil, nil, nil, err
|
||||
}
|
||||
|
||||
intermediateCertificate, err := x509.ParseCertificate(keyPair.Certificate[1])
|
||||
if err != nil {
|
||||
return nil, nil, nil, err
|
||||
}
|
||||
|
||||
return privateKey, certificate, intermediateCertificate, nil
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue