der-parser | Fast zero-copy | Parser library

by rusticata Rust Version: der-parser-7.0.0 License: Non-SPDX

X-Ray Key Features Code Snippets(3)Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | der-parser Summary

der-parser is a Rust library typically used in Utilities, Parser applications. der-parser has no bugs, it has no vulnerabilities and it has low support. However der-parser has a Non-SPDX License. You can download it from GitHub.

A parser for Basic Encoding Rules (BER [X.690]) and Distinguished Encoding Rules(DER [X.690]), implemented with the nom parser combinator framework. It is written in pure Rust, fast, and makes extensive use of zero-copy. A lot of care is taken to ensure security and safety of this crate, including design (recursion limit, defensive programming), tests, and fuzzing. It also aims to be panic-free. Historically, this parser was intended for DER only, and BER support was added later. This may still reflect on some naming schemes, but has no other consequence: the BerObject and DerObject used in this crate are type aliases, so all functions are compatible. DER parsing functions have additional constraints verification, however. Serialization has also been added (see Serialization ). The code is available on Github and is part of the Rusticata project.

Support

Quality

Security

License

Reuse

Support

der-parser has a low active ecosystem.

It has 72 star(s) with 23 fork(s). There are 5 watchers for this library.

It had no major release in the last 12 months.

There are 4 open issues and 25 have been closed. On average issues are closed in 100 days. There are 2 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of der-parser is der-parser-7.0.0

Quality

der-parser has no bugs reported.

Security

der-parser has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

der-parser has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

der-parser releases are available to install and integrate.

Installation instructions are not available. Examples and code snippets are available.

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der-parser Key Features

No Key Features are available at this moment for der-parser.

der-parser Examples and Code Snippets

DER parser design

Rust

Lines of Code : 28

License : Non-SPDX (NOASSERTION)

Copy

use der_parser::parse_der;

let bytes = [ 0x30, 0x0a,
              0x02, 0x03, 0x01, 0x00, 0x01,
              0x02, 0x03, 0x01, 0x00, 0x00,
];

let parsed = parse_der(&bytes);

use der_parser::ber::*;
use der_parser::error::BerResult;

fn local

BER/DER parsers,Examples

Rust

Lines of Code : 17

License : Non-SPDX (NOASSERTION)

Copy

use der_parser::ber::parse_ber_integer;

let bytes = [ 0x02, 0x03, 0x01, 0x00, 0x01,
              0x02, 0x03, 0x01, 0x00, 0x00,
];

let (rem, obj1) = parse_ber_integer(&bytes).expect("parsing failed");
let (rem, obj2) = parse_ber_integer(&by

Notes,BER/DER Integers

Rust

Lines of Code : 9

License : Non-SPDX (NOASSERTION)

Copy

use der_parser::ber::*;

let data = &[0x02, 0x03, 0x01, 0x00, 0x01];

let (_, object) = parse_ber_integer(data).expect("parsing failed");
assert_eq!(object.as_u64(), Ok(65537));

#[cfg(feature = "bigint")]
assert_eq!(object.as_bigint(), Ok(65537.

Community Discussions

Trending Discussions on der-parser

Cannot create a file when using malloced char arrays

overflow:scroll; property is not providing enough scroll depth

antlr2 to antlr4 class specifier, options, TOKENS and more

QUESTION

Cannot create a file when using malloced char arrays

Asked 2021-Mar-08 at 22:46

I am coding a PE file viewer in standard C by following this article. It is pretty neat, but I have a problem with the first lines:

...

ANSWER

Answered 2021-Mar-08 at 22:46

Unless there is some other reason for it, there is no need to copy argv[1] you could just use it instead:

Source https://stackoverflow.com/questions/66515035

QUESTION

overflow:scroll; property is not providing enough scroll depth

Asked 2021-Jan-13 at 07:36

CSS overflow:scroll; property doesn't provide large scrolling depth. Unable to see the hidden data as scrollbar doesn't scroll enough.

My github link for the code is below. https://github.com/krishnasai3cks/portfolio

...

ANSWER

Answered 2021-Jan-13 at 07:36

Removing the display: flex property from this class will fix it.

Source https://stackoverflow.com/questions/65697207

QUESTION

antlr2 to antlr4 class specifier, options, TOKENS and more

Asked 2017-Apr-04 at 07:11

I need to rewrite a grammar file from antlr2 syntax to antlr4 syntax and have the following questions.

1) Bart Kiers states there is a strict order: grammar, options, tokens, @header, @members in this SO post. This antlr2.org post disagrees stating header is before options. Is there a resource that states the correct order (if one exists) for antlr4?

2) The same antlr2.org post states: "The options section for a grammar, if specified, must immediately follow the ';' of the class specifier:

...

ANSWER

Answered 2017-Apr-04 at 07:11

1) Just look at the ultimate source for the syntax: the ANTLR4 grammar. As you can see the order plays no role in the prequel section (which includes named actions, options and the like, you can even have more than one option section). The only condition is that the prequel section must appear before any rule.

2) The error is about a wrong option. Remove that and the error will go away.

3) Many (actually most of the old) options are no longer needed and supported in ANTLR4.

i.) ANTLR4 uses unlimited lookahead (hence the * in ALL(*)). You cannot specify any other lookahead.

ii.) The exportVocab has long gone (not even ANTLR3 supports it). It only specifies a name for the .tokens file. Use the default instead.

iii.) Nothing like that is needed nor supported anymore. The prediction algorithm has completely changed in ANTLR4.

iv.) You use an error listener instead. There are many examples how to do that (also here at SO).

v.) Is that a question or just thinking loudly? Hint: ANTLR4 based parsers generate a parse tree.

4) I'm not 100% sure about this one, but I believe you can no longer specify the value a token should match in the tokens section. Instead this is only for virtual tokens and everything else must be specified as normal lexer tokens.

To sum up: most of the special options and tricks required for older ANTLR grammars are not needed anymore and must be removed. The new parsing algorithm can deal with all the ambiquities automatically, which former versions had trouble with and needed guidance from the user for.

Source https://stackoverflow.com/questions/43195615

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install der-parser

You can download it from GitHub.
Rust is installed and managed by the rustup tool. Rust has a 6-week rapid release process and supports a great number of platforms, so there are many builds of Rust available at any time. Please refer rust-lang.org for more information.

Support

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

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