1// Copyright 2011 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package packet
6
7import (
8	"bytes"
9	"crypto"
10	"crypto/ecdsa"
11	"crypto/elliptic"
12	"crypto/rand"
13	"crypto/rsa"
14	"crypto/x509"
15	"encoding/hex"
16	"hash"
17	"testing"
18	"time"
19)
20
21var privateKeyTests = []struct {
22	privateKeyHex string
23	creationTime  time.Time
24}{
25	{
26		privKeyRSAHex,
27		time.Unix(0x4cc349a8, 0),
28	},
29	{
30		privKeyElGamalHex,
31		time.Unix(0x4df9ee1a, 0),
32	},
33}
34
35func TestPrivateKeyRead(t *testing.T) {
36	for i, test := range privateKeyTests {
37		packet, err := Read(readerFromHex(test.privateKeyHex))
38		if err != nil {
39			t.Errorf("#%d: failed to parse: %s", i, err)
40			continue
41		}
42
43		privKey := packet.(*PrivateKey)
44
45		if !privKey.Encrypted {
46			t.Errorf("#%d: private key isn't encrypted", i)
47			continue
48		}
49
50		err = privKey.Decrypt([]byte("wrong password"))
51		if err == nil {
52			t.Errorf("#%d: decrypted with incorrect key", i)
53			continue
54		}
55
56		err = privKey.Decrypt([]byte("testing"))
57		if err != nil {
58			t.Errorf("#%d: failed to decrypt: %s", i, err)
59			continue
60		}
61
62		if !privKey.CreationTime.Equal(test.creationTime) || privKey.Encrypted {
63			t.Errorf("#%d: bad result, got: %#v", i, privKey)
64		}
65	}
66}
67
68func populateHash(hashFunc crypto.Hash, msg []byte) (hash.Hash, error) {
69	h := hashFunc.New()
70	if _, err := h.Write(msg); err != nil {
71		return nil, err
72	}
73	return h, nil
74}
75
76func TestRSAPrivateKey(t *testing.T) {
77	privKeyDER, _ := hex.DecodeString(pkcs1PrivKeyHex)
78	rsaPriv, err := x509.ParsePKCS1PrivateKey(privKeyDER)
79	if err != nil {
80		t.Fatal(err)
81	}
82
83	var buf bytes.Buffer
84	if err := NewRSAPrivateKey(time.Now(), rsaPriv).Serialize(&buf); err != nil {
85		t.Fatal(err)
86	}
87
88	p, err := Read(&buf)
89	if err != nil {
90		t.Fatal(err)
91	}
92
93	priv, ok := p.(*PrivateKey)
94	if !ok {
95		t.Fatal("didn't parse private key")
96	}
97
98	sig := &Signature{
99		PubKeyAlgo: PubKeyAlgoRSA,
100		Hash:       crypto.SHA256,
101	}
102	msg := []byte("Hello World!")
103
104	h, err := populateHash(sig.Hash, msg)
105	if err != nil {
106		t.Fatal(err)
107	}
108	if err := sig.Sign(h, priv, nil); err != nil {
109		t.Fatal(err)
110	}
111
112	if h, err = populateHash(sig.Hash, msg); err != nil {
113		t.Fatal(err)
114	}
115	if err := priv.VerifySignature(h, sig); err != nil {
116		t.Fatal(err)
117	}
118}
119
120func TestECDSAPrivateKey(t *testing.T) {
121	ecdsaPriv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
122	if err != nil {
123		t.Fatal(err)
124	}
125
126	var buf bytes.Buffer
127	if err := NewECDSAPrivateKey(time.Now(), ecdsaPriv).Serialize(&buf); err != nil {
128		t.Fatal(err)
129	}
130
131	p, err := Read(&buf)
132	if err != nil {
133		t.Fatal(err)
134	}
135
136	priv, ok := p.(*PrivateKey)
137	if !ok {
138		t.Fatal("didn't parse private key")
139	}
140
141	sig := &Signature{
142		PubKeyAlgo: PubKeyAlgoECDSA,
143		Hash:       crypto.SHA256,
144	}
145	msg := []byte("Hello World!")
146
147	h, err := populateHash(sig.Hash, msg)
148	if err != nil {
149		t.Fatal(err)
150	}
151	if err := sig.Sign(h, priv, nil); err != nil {
152		t.Fatal(err)
153	}
154
155	if h, err = populateHash(sig.Hash, msg); err != nil {
156		t.Fatal(err)
157	}
158	if err := priv.VerifySignature(h, sig); err != nil {
159		t.Fatal(err)
160	}
161}
162
163type rsaSigner struct {
164	*rsa.PrivateKey
165}
166
167func TestRSASignerPrivateKey(t *testing.T) {
168	rsaPriv, err := rsa.GenerateKey(rand.Reader, 1024)
169	if err != nil {
170		t.Fatal(err)
171	}
172
173	priv := NewSignerPrivateKey(time.Now(), &rsaSigner{rsaPriv})
174
175	sig := &Signature{
176		PubKeyAlgo: PubKeyAlgoRSA,
177		Hash:       crypto.SHA256,
178	}
179	msg := []byte("Hello World!")
180
181	h, err := populateHash(sig.Hash, msg)
182	if err != nil {
183		t.Fatal(err)
184	}
185	if err := sig.Sign(h, priv, nil); err != nil {
186		t.Fatal(err)
187	}
188
189	if h, err = populateHash(sig.Hash, msg); err != nil {
190		t.Fatal(err)
191	}
192	if err := priv.VerifySignature(h, sig); err != nil {
193		t.Fatal(err)
194	}
195}
196
197type ecdsaSigner struct {
198	*ecdsa.PrivateKey
199}
200
201func TestECDSASignerPrivateKey(t *testing.T) {
202	ecdsaPriv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
203	if err != nil {
204		t.Fatal(err)
205	}
206
207	priv := NewSignerPrivateKey(time.Now(), &ecdsaSigner{ecdsaPriv})
208
209	if priv.PubKeyAlgo != PubKeyAlgoECDSA {
210		t.Fatal("NewSignerPrivateKey should have made an ECSDA private key")
211	}
212
213	sig := &Signature{
214		PubKeyAlgo: PubKeyAlgoECDSA,
215		Hash:       crypto.SHA256,
216	}
217	msg := []byte("Hello World!")
218
219	h, err := populateHash(sig.Hash, msg)
220	if err != nil {
221		t.Fatal(err)
222	}
223	if err := sig.Sign(h, priv, nil); err != nil {
224		t.Fatal(err)
225	}
226
227	if h, err = populateHash(sig.Hash, msg); err != nil {
228		t.Fatal(err)
229	}
230	if err := priv.VerifySignature(h, sig); err != nil {
231		t.Fatal(err)
232	}
233}
234
235func TestIssue11505(t *testing.T) {
236	// parsing a rsa private key with p or q == 1 used to panic due to a divide by zero
237	_, _ = Read(readerFromHex("9c3004303030300100000011303030000000000000010130303030303030303030303030303030303030303030303030303030303030303030303030303030303030"))
238}
239
240// Generated with `gpg --export-secret-keys "Test Key 2"`
241const privKeyRSAHex = "9501fe044cc349a8010400b70ca0010e98c090008d45d1ee8f9113bd5861fd57b88bacb7c68658747663f1e1a3b5a98f32fda6472373c024b97359cd2efc88ff60f77751adfbf6af5e615e6a1408cfad8bf0cea30b0d5f53aa27ad59089ba9b15b7ebc2777a25d7b436144027e3bcd203909f147d0e332b240cf63d3395f5dfe0df0a6c04e8655af7eacdf0011010001fe0303024a252e7d475fd445607de39a265472aa74a9320ba2dac395faa687e9e0336aeb7e9a7397e511b5afd9dc84557c80ac0f3d4d7bfec5ae16f20d41c8c84a04552a33870b930420e230e179564f6d19bb153145e76c33ae993886c388832b0fa042ddda7f133924f3854481533e0ede31d51278c0519b29abc3bf53da673e13e3e1214b52413d179d7f66deee35cac8eacb060f78379d70ef4af8607e68131ff529439668fc39c9ce6dfef8a5ac234d234802cbfb749a26107db26406213ae5c06d4673253a3cbee1fcbae58d6ab77e38d6e2c0e7c6317c48e054edadb5a40d0d48acb44643d998139a8a66bb820be1f3f80185bc777d14b5954b60effe2448a036d565c6bc0b915fcea518acdd20ab07bc1529f561c58cd044f723109b93f6fd99f876ff891d64306b5d08f48bab59f38695e9109c4dec34013ba3153488ce070268381ba923ee1eb77125b36afcb4347ec3478c8f2735b06ef17351d872e577fa95d0c397c88c71b59629a36aec"
242
243// Generated by `gpg --export-secret-keys` followed by a manual extraction of
244// the ElGamal subkey from the packets.
245const privKeyElGamalHex = "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"
246
247// pkcs1PrivKeyHex is a PKCS#1, RSA private key.
248// Generated by `openssl genrsa 1024 | openssl rsa -outform DER  | xxd -p`
249const pkcs1PrivKeyHex = "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"
250