Last change
on this file since 571e0df was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
initial commit
|
-
Property mode
set to
100644
|
File size:
1.2 KB
|
Line | |
---|
1 | node-asn1 is a library for encoding and decoding ASN.1 datatypes in pure JS.
|
---|
2 | Currently BER encoding is supported; at some point I'll likely have to do DER.
|
---|
3 |
|
---|
4 | ## Usage
|
---|
5 |
|
---|
6 | Mostly, if you're *actually* needing to read and write ASN.1, you probably don't
|
---|
7 | need this readme to explain what and why. If you have no idea what ASN.1 is,
|
---|
8 | see this: ftp://ftp.rsa.com/pub/pkcs/ascii/layman.asc
|
---|
9 |
|
---|
10 | The source is pretty much self-explanatory, and has read/write methods for the
|
---|
11 | common types out there.
|
---|
12 |
|
---|
13 | ### Decoding
|
---|
14 |
|
---|
15 | The following reads an ASN.1 sequence with a boolean.
|
---|
16 |
|
---|
17 | var Ber = require('asn1').Ber;
|
---|
18 |
|
---|
19 | var reader = new Ber.Reader(Buffer.from([0x30, 0x03, 0x01, 0x01, 0xff]));
|
---|
20 |
|
---|
21 | reader.readSequence();
|
---|
22 | console.log('Sequence len: ' + reader.length);
|
---|
23 | if (reader.peek() === Ber.Boolean)
|
---|
24 | console.log(reader.readBoolean());
|
---|
25 |
|
---|
26 | ### Encoding
|
---|
27 |
|
---|
28 | The following generates the same payload as above.
|
---|
29 |
|
---|
30 | var Ber = require('asn1').Ber;
|
---|
31 |
|
---|
32 | var writer = new Ber.Writer();
|
---|
33 |
|
---|
34 | writer.startSequence();
|
---|
35 | writer.writeBoolean(true);
|
---|
36 | writer.endSequence();
|
---|
37 |
|
---|
38 | console.log(writer.buffer);
|
---|
39 |
|
---|
40 | ## Installation
|
---|
41 |
|
---|
42 | npm install asn1
|
---|
43 |
|
---|
44 | ## License
|
---|
45 |
|
---|
46 | MIT.
|
---|
47 |
|
---|
48 | ## Bugs
|
---|
49 |
|
---|
50 | See <https://github.com/joyent/node-asn1/issues>.
|
---|
Note:
See
TracBrowser
for help on using the repository browser.