-
Notifications
You must be signed in to change notification settings - Fork 55
/
Copy pathtestminasn1.nim
205 lines (177 loc) · 7.12 KB
/
testminasn1.nim
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
{.used.}
# Nim-Libp2p
# Copyright (c) 2023 Status Research & Development GmbH
# Licensed under either of
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
# * MIT license ([LICENSE-MIT](LICENSE-MIT))
# at your option.
# This file may not be copied, modified, or distributed except according to
# those terms.
import unittest2
import ../libp2p/crypto/minasn1
import nimcrypto/utils as ncrutils
const Asn1EdgeValues = [
0'u64,
(1'u64 shl 7) - 1'u64,
(1'u64 shl 7),
(1'u64 shl 8) - 1'u64,
(1'u64 shl 8),
(1'u64 shl 16) - 1'u64,
(1'u64 shl 16),
(1'u64 shl 24) - 1'u64,
(1'u64 shl 24),
(1'u64 shl 32) - 1'u64,
(1'u64 shl 32),
(1'u64 shl 40) - 1'u64,
(1'u64 shl 40),
(1'u64 shl 48) - 1'u64,
(1'u64 shl 48),
(1'u64 shl 56) - 1'u64,
(1'u64 shl 56),
0xFFFF_FFFF_FFFF_FFFF'u64,
]
const Asn1EdgeExpects = [
"00", "7F", "8180", "81FF", "820100", "82FFFF", "83010000", "83FFFFFF", "8401000000",
"84FFFFFFFF", "850100000000", "85FFFFFFFFFF", "86010000000000", "86FFFFFFFFFFFF",
"8701000000000000", "87FFFFFFFFFFFFFF", "880100000000000000", "88FFFFFFFFFFFFFFFF",
]
const Asn1UIntegerValues8 = [0x00'u8, 0x7F'u8, 0x80'u8, 0xFF'u8]
const Asn1UIntegerExpects8 = ["020100", "02017F", "02020080", "020200FF"]
const Asn1UIntegerValues16 =
[0x00'u16, 0x7F'u16, 0x80'u16, 0xFF'u16, 0x7FFF'u16, 0x8000'u16, 0xFFFF'u16]
const Asn1UIntegerExpects16 =
["020100", "02017F", "02020080", "020200FF", "02027FFF", "0203008000", "020300FFFF"]
const Asn1UIntegerValues32 = [
0x00'u32, 0x7F'u32, 0x80'u32, 0xFF'u32, 0x7FFF'u32, 0x8000'u32, 0xFFFF'u32,
0x7FFF_FFFF'u32, 0x8000_0000'u32, 0xFFFF_FFFF'u32,
]
const Asn1UIntegerExpects32 = [
"020100", "02017F", "02020080", "020200FF", "02027FFF", "0203008000", "020300FFFF",
"02047FFFFFFF", "02050080000000", "020500FFFFFFFF",
]
const Asn1UIntegerValues64 = [
0x00'u64, 0x7F'u64, 0x80'u64, 0xFF'u64, 0x7FFF'u64, 0x8000'u64, 0xFFFF'u64,
0x7FFF_FFFF'u64, 0x8000_0000'u64, 0xFFFF_FFFF'u64, 0x7FFF_FFFF_FFFF_FFFF'u64,
0x8000_0000_0000_0000'u64, 0xFFFF_FFFF_FFFF_FFFF'u64,
]
const Asn1UIntegerExpects64 = [
"020100", "02017F", "02020080", "020200FF", "02027FFF", "0203008000", "020300FFFF",
"02047FFFFFFF", "02050080000000", "020500FFFFFFFF", "02087FFFFFFFFFFFFFFF",
"0209008000000000000000", "020900FFFFFFFFFFFFFFFF",
]
suite "Minimal ASN.1 encode/decode suite":
test "Length encoding edge values":
var empty = newSeq[byte](0)
for i in 0 ..< len(Asn1EdgeValues):
var value = newSeq[byte](9)
let r1 = asn1EncodeLength(empty, Asn1EdgeValues[i])
let r2 = asn1EncodeLength(value, Asn1EdgeValues[i])
value.setLen(r2)
check:
r1 == (len(Asn1EdgeExpects[i]) shr 1)
r2 == (len(Asn1EdgeExpects[i]) shr 1)
check:
ncrutils.fromHex(Asn1EdgeExpects[i]) == value
test "ASN.1 DER INTEGER encoding/decoding of native unsigned values test":
proc decodeBuffer(data: openArray[byte]): uint64 =
var ab = Asn1Buffer.init(data)
let fres = ab.read()
doAssert(fres.isOk() and fres.get().kind == Asn1Tag.Integer)
fres.get().vint
proc encodeInteger[T](value: T): seq[byte] =
var buffer = newSeq[byte](16)
let res = asn1EncodeInteger(buffer, value)
buffer.setLen(res)
buffer
for i in 0 ..< len(Asn1UIntegerValues8):
let buffer = encodeInteger(Asn1UIntegerValues8[i])
check:
toHex(buffer) == Asn1UIntegerExpects8[i]
decodeBuffer(buffer) == uint64(Asn1UIntegerValues8[i])
for i in 0 ..< len(Asn1UIntegerValues16):
let buffer = encodeInteger(Asn1UIntegerValues16[i])
check:
toHex(buffer) == Asn1UIntegerExpects16[i]
decodeBuffer(buffer) == uint64(Asn1UIntegerValues16[i])
for i in 0 ..< len(Asn1UIntegerValues32):
let buffer = encodeInteger(Asn1UIntegerValues32[i])
check:
toHex(buffer) == Asn1UIntegerExpects32[i]
decodeBuffer(buffer) == uint64(Asn1UIntegerValues32[i])
for i in 0 ..< len(Asn1UIntegerValues64):
let buffer = encodeInteger(Asn1UIntegerValues64[i])
check:
toHex(buffer) == Asn1UIntegerExpects64[i]
decodeBuffer(buffer) == uint64(Asn1UIntegerValues64[i])
test "ASN.1 DER INTEGER incorrect values decoding test":
proc decodeBuffer(data: string): Asn1Result[Asn1Field] =
var ab = Asn1Buffer.init(fromHex(data))
ab.read()
check:
decodeBuffer("0200").error == Asn1Error.Incorrect
decodeBuffer("0201").error == Asn1Error.Incomplete
decodeBuffer("02020000").error == Asn1Error.Incorrect
decodeBuffer("0203000001").error == Asn1Error.Incorrect
test "ASN.1 DER BITSTRING encoding/decoding with unused bits test":
proc encodeBits(value: string, bitsUsed: int): seq[byte] =
var buffer = newSeq[byte](16)
let res = asn1EncodeBitString(buffer, fromHex(value), bitsUsed)
buffer.setLen(res)
buffer
proc decodeBuffer(data: string): Asn1Field =
var ab = Asn1Buffer.init(fromHex(data))
let fres = ab.read()
doAssert(fres.isOk() and fres.get().kind == Asn1Tag.BitString)
fres.get()
check:
toHex(encodeBits("FF", 7)) == "03020780"
toHex(encodeBits("FF", 6)) == "030206C0"
toHex(encodeBits("FF", 5)) == "030205E0"
toHex(encodeBits("FF", 4)) == "030204F0"
toHex(encodeBits("FF", 3)) == "030203F8"
toHex(encodeBits("FF", 2)) == "030202FC"
toHex(encodeBits("FF", 1)) == "030201FE"
toHex(encodeBits("FF", 0)) == "030200FF"
let f0 = decodeBuffer("030200FF")
let f0b = @(f0.buffer.toOpenArray(f0.offset, f0.offset + f0.length - 1))
let f1 = decodeBuffer("030201FE")
let f1b = @(f1.buffer.toOpenArray(f1.offset, f1.offset + f1.length - 1))
let f2 = decodeBuffer("030202FC")
let f2b = @(f2.buffer.toOpenArray(f2.offset, f2.offset + f2.length - 1))
let f3 = decodeBuffer("030203F8")
let f3b = @(f3.buffer.toOpenArray(f3.offset, f3.offset + f3.length - 1))
let f4 = decodeBuffer("030204F0")
let f4b = @(f4.buffer.toOpenArray(f4.offset, f4.offset + f4.length - 1))
let f5 = decodeBuffer("030205E0")
let f5b = @(f5.buffer.toOpenArray(f5.offset, f5.offset + f5.length - 1))
let f6 = decodeBuffer("030206C0")
let f6b = @(f6.buffer.toOpenArray(f6.offset, f6.offset + f6.length - 1))
let f7 = decodeBuffer("03020780")
let f7b = @(f7.buffer.toOpenArray(f7.offset, f7.offset + f7.length - 1))
check:
f0.ubits == 0
toHex(f0b) == "FF"
f1.ubits == 1
toHex(f1b) == "FE"
f2.ubits == 2
toHex(f2b) == "FC"
f3.ubits == 3
toHex(f3b) == "F8"
f4.ubits == 4
toHex(f4b) == "F0"
f5.ubits == 5
toHex(f5b) == "E0"
f6.ubits == 6
toHex(f6b) == "C0"
f7.ubits == 7
toHex(f7b) == "80"
test "ASN.1 DER BITSTRING incorrect values decoding test":
proc decodeBuffer(data: string): Asn1Result[Asn1Field] =
var ab = Asn1Buffer.init(fromHex(data))
ab.read()
check:
decodeBuffer("0300").error == Asn1Error.Incorrect
decodeBuffer("030180").error == Asn1Error.Incorrect
decodeBuffer("030107").error == Asn1Error.Incorrect
decodeBuffer("030200").error == Asn1Error.Incomplete
decodeBuffer("030208FF").error == Asn1Error.Incorrect