source: trip-planner-front/node_modules/asn1/README.md@ 76712b2

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1node-asn1 is a library for encoding and decoding ASN.1 datatypes in pure JS.
2Currently BER encoding is supported; at some point I'll likely have to do DER.
3
4## Usage
5
6Mostly, if you're *actually* needing to read and write ASN.1, you probably don't
7need this readme to explain what and why. If you have no idea what ASN.1 is,
8see this: ftp://ftp.rsa.com/pub/pkcs/ascii/layman.asc
9
10The source is pretty much self-explanatory, and has read/write methods for the
11common types out there.
12
13### Decoding
14
15The 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
28The 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
46MIT.
47
48## Bugs
49
50See <https://github.com/joyent/node-asn1/issues>.
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