Java org apache commons codec

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apache/commons-codec

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README.md

The Apache Commons Codec package contains simple encoder and decoders for various formats such as Base64 and Hexadecimal. In addition to these widely used encoders and decoders, the codec package also maintains a collection of phonetic encoding utilities.

More information can be found on the Apache Commons Codec homepage. The Javadoc can be browsed. Questions related to the usage of Apache Commons Codec should be posted to the [user mailing list][ml].

Where can I get the latest release?

You can download source and binaries from our download page.

Alternatively, you can pull it from the central Maven repositories:

dependency> groupId>commons-codecgroupId> artifactId>commons-codecartifactId> version>1.16.0version> dependency>

We accept Pull Requests via GitHub. The developer mailing list is the main channel of communication for contributors. There are some guidelines which will make applying PRs easier for us:

  • No tabs! Please use spaces for indentation.
  • Respect the code style.
  • Create minimal diffs — disable on save actions like reformat source code or organize imports. If you feel the source code should be reformatted create a separate PR for this change.
  • Provide JUnit tests for your changes and make sure your changes don’t break any existing tests by running mvn .

If you plan to contribute on a regular basis, please consider filing a contributor license agreement. You can learn more about contributing via GitHub in our contribution guidelines.

See the NOTICE.txt file for required notices and attributions.

You like Apache Commons Codec? Then donate back to the ASF to support the development.

Apache Commons Components

Component GitHub Repository Apache Homepage
Apache Commons BCEL commons-bcel commons-bcel
Apache Commons Beanutils commons-beanutils commons-beanutils
Apache Commons BSF commons-bsf commons-bsf
Apache Commons Build-plugin commons-build-plugin commons-build-plugin
Apache Commons Chain commons-chain commons-chain
Apache Commons CLI commons-cli commons-cli
Apache Commons Codec commons-codec commons-codec
Apache Commons Collections commons-collections commons-collections
Apache Commons Compress commons-compress commons-compress
Apache Commons Configuration commons-configuration commons-configuration
Apache Commons Crypto commons-crypto commons-crypto
Apache Commons CSV commons-csv commons-csv
Apache Commons Daemon commons-daemon commons-daemon
Apache Commons DBCP commons-dbcp commons-dbcp
Apache Commons Dbutils commons-dbutils commons-dbutils
Apache Commons Digester commons-digester commons-digester
Apache Commons Email commons-email commons-email
Apache Commons Exec commons-exec commons-exec
Apache Commons Fileupload commons-fileupload commons-fileupload
Apache Commons Functor commons-functor commons-functor
Apache Commons Geometry commons-geometry commons-geometry
Apache Commons Graph commons-graph commons-graph
Apache Commons Imaging commons-imaging commons-imaging
Apache Commons IO commons-io commons-io
Apache Commons JCI commons-jci commons-jci
Apache Commons JCS commons-jcs commons-jcs
Apache Commons Jelly commons-jelly commons-jelly
Apache Commons Jexl commons-jexl commons-jexl
Apache Commons Jxpath commons-jxpath commons-jxpath
Apache Commons Lang commons-lang commons-lang
Apache Commons Logging commons-logging commons-logging
Apache Commons Math commons-math commons-math
Apache Commons Net commons-net commons-net
Apache Commons Numbers commons-numbers commons-numbers
Apache Commons Parent commons-parent commons-parent
Apache Commons Pool commons-pool commons-pool
Apache Commons Proxy commons-proxy commons-proxy
Apache Commons RDF commons-rdf commons-rdf
Apache Commons Release-plugin commons-release-plugin commons-release-plugin
Apache Commons Rng commons-rng commons-rng
Apache Commons Scxml commons-scxml commons-scxml
Apache Commons Signing commons-signing commons-signing
Apache Commons Skin commons-skin commons-skin
Apache Commons Statistics commons-statistics commons-statistics
Apache Commons Testing commons-testing commons-testing
Apache Commons Text commons-text commons-text
Apache Commons Validator commons-validator commons-validator
Apache Commons VFS commons-vfs commons-vfs
Apache Commons Weaver commons-weaver commons-weaver

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Java org apache commons codec

ApacheCon

Apache Commons Codec

Apache Commons Codec (TM) software provides implementations of common encoders and decoders such as Base64, Hex, Phonetic and URLs.

Impetus

Codec was formed as an attempt to focus development effort on one definitive implementation of the Base64 encoder. At the time of Codec’s proposal, there were approximately 34 different Java classes that dealt with Base64 encoding spread over the Foundation’s CVS repository. Developers in the Jakarta Tomcat project had implemented an original version of the Base64 codec which had been copied by the Commons HttpClient and Apache XML project’s XML-RPC subproject. After almost one year, the two forked versions of Base64 had significantly diverged from one another. XML-RPC had applied numerous fixes and patches which were not applied to the Commons HttpClient Base64. Different subprojects had differing implementations at various levels of compliance with the RFC 2045.

Out of that confusing duplication of effort sprang this simple attempt to encourage code reuse among various projects. While this package contains an abstract framework for the creation of encoders and decoders, Codec itself is primarily focused on providing functional utilities for working with common encodings.

Documentation

An overview of the functionality is provided in the user guide. Various project reports are also available.

The Javadoc API documents are available online:

Releases

See the Download Page for the latest releases.

For previous releases, see the Apache Archive

Support

The commons mailing lists act as the main support forum. The user list is suitable for most library usage queries. The dev list is intended for the development discussion. Please remember that the lists are shared between all commons components, so prefix your email by [codec].

Issues may be reported via ASF JIRA.

Copyright © 2002-2023 The Apache Software Foundation. All Rights Reserved.

Apache Commons, Apache Commons Codec, Apache, the Apache feather logo, and the Apache Commons project logos are trademarks of The Apache Software Foundation. All other marks mentioned may be trademarks or registered trademarks of their respective owners.

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Java org apache commons codec

ApacheCon

User guide

Codec consists of a set of utilities and a simple framework for encoding and decoding text and binary data.

Binary Encoders

Interfaces and classes used by the various implementations in the sub-packages.

Base32 Provides Base32 encoding and decoding as defined by RFC 4648
Base32InputStream Provides Base32 encoding and decoding in a streaming fashion (unlimited size).
Base64 Provides Base64 encoding and decoding as defined by RFC 2045
Base64InputStream Provides Base64 encoding and decoding in a streaming fashion (unlimited size).
BinaryCodec Converts between byte arrays and strings of «0»s and «1»s.
Hex Converts hexadecimal Strings.

Digest Encoders

DigestUtils Simplifies common MessageDigest tasks and provides GNU libc crypt(3) compatible password hashing functions.
Blake3 Provides a pure Java implementation of the Blake3 hash function which can be used for computing cryptographic hashes (message digests) which are extensible to arbitrary output lengths (known as an extensible-output function or XOF), computing message authentication codes using a 32 byte (256-bit) secret key, computing subkeys from a primary key using a key derivation function, and can be used as the basis for a cryptographically-secure pseudorandom number generator. WARNING: Blake3 is not a password hashing algorithm! An algorithm such as Argon2 is more appropriate for password hashing.

Language Encoders

Caverphone 1.0 Encodes a string into a Caverphone 1.0 value.
Caverphone 2.0 Encodes a string into a Caverphone 2.0 value.
Cologne Phonetic Encodes a string into a Cologne Phonetic value.
Double Metaphone Encodes a string into a double metaphone value.
Metaphone Encodes a string into a Metaphone value.
Refined Soundex Encodes a string into a Refined Soundex value.
Soundex Encodes a string into a Soundex value.

Network Encoders

Copyright © 2002-2023 The Apache Software Foundation. All Rights Reserved.

Apache Commons, Apache Commons Codec, Apache, the Apache feather logo, and the Apache Commons project logos are trademarks of The Apache Software Foundation. All other marks mentioned may be trademarks or registered trademarks of their respective owners.

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Java org apache commons codec

ApacheCon

Download Apache Commons Codec

Using a Mirror

We recommend you use a mirror to download our release builds, but you must verify the integrity of the downloaded files using signatures downloaded from our main distribution directories. Recent releases (48 hours) may not yet be available from all the mirrors.

You are currently using https://dlcdn.apache.org/. If you encounter a problem with this mirror, please select another mirror. If all mirrors are failing, there are backup mirrors (at the end of the mirrors list) that should be available.

It is essential that you verify the integrity of downloaded files, preferably using the PGP signature ( *.asc files); failing that using the SHA512 hash ( *.sha512 checksum files).

The KEYS file contains the public PGP keys used by Apache Commons developers to sign releases.

Apache Commons Codec 1.16.0

Binaries

Source

Archives

Older releases can be obtained from the archives.

Copyright © 2002-2023 The Apache Software Foundation. All Rights Reserved.

Apache Commons, Apache Commons Codec, Apache, the Apache feather logo, and the Apache Commons project logos are trademarks of The Apache Software Foundation. All other marks mentioned may be trademarks or registered trademarks of their respective owners.

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