Validates user input (usually from an HTML form) based on input profile

Details of the floating point data type

Entropy (randomness) management

Less indentation and newlines plus sub deparsing

Dump with recursive encoding

Pretty printing of data structures

Compare perl data structures

Compact Read Only Database that consumes very little memory

Polymorphic data cloning

Simple detection of binary versus text in strings

Pure perl multi-level hash/array DBM that supports transactions

Very complete easy-to-use OO interface to DBI

Encapsulate SQL queries and rows in simple perl objects

Detect what database you are connected to

Database-independent schema objects

Fast, safe DBI connection and transaction management

Create a DBIx::Class::Schema based on a database

Introspect many-to-many relationships

Simplify the common case stuff for DBIx::Class

Like FromForm but with DBIx::Class and HTML::Widget

Cursor class with built-in caching support

Sugar for your favorite ORM, DBIx::Class

Extensible and flexible object <-> relational mapper

Database independent interface for Perl

Perl5 access to Berkeley DB version 1.x

DBI driver for Sybase datasources

MySQL driver for the Perl5 Database Interface (DBI)

Self Contained SQLite RDBMS in a DBI Driver

DBI PostgreSQL interface

Oracle database driver for the DBI module

Mock database driver for testing

DBI driver for CSV files

Temporary changing working directory (chdir)

Create and manipulate data in grid model

Curses based OO user interface framework

Perl bindings to ncurses

Parse a X.509 certificate

Cryptographic toolkit

Perl xs interface for a portable traditional crypt function

Override core rand function to use system random sources

Perl interface to system randomness

Perl-only implementation of lanman and nt md4 hash functions, for use in Samba style smbpasswd entries

OpenSSL support for LWP

Crypt::CBC compliant Rijndael encryption module

Random numbers using timer/schedule entropy, aka userspace voodoo entropy

Get weak or strong random data from pluggable sources

Interface to /dev/random and /dev/urandom

Random password generator based on FIPS-181

Perl implementation of the RC4 encryption algorithm

Provide interoperable MD5-based crypt() functions

Bcrypt encoder for Crypt::Passphrase

Argon2 encoder for Crypt::Passphrase

Module for managing passwords in a cryptographically agile manner

Parse PKCS #10 certificate requests

OpenSSL/LibreSSL pseudo-random number generator access

RSA encoding and decoding, using the openSSL libraries

Guess OpenSSL include path

OpenSSL's multiprecision integer arithmetic

Perl wrapper around OpenSSL's AES library

Emulate MySQL PASSWORD() function

JSON Web Token

Perl interface to IDEA block cipher

Eksblowfish block cipher

Use block ciphers using ECB mode

Crypt::DH Using GMP Directly

Diffie-Hellman key exchange system

Triple-DES EDE encryption/decryption

Perl DES encryption module

Generate shared secret using elliptic-curve Diffie-Hellman function

Encrypt Data with Cipher Block Chaining Mode

Perl Blowfish encryption module

Modern bcrypt implementation

Perl interface to the Argon2 key derivation functions

CPanel fork of JSON::XS, fast and correct serializing

Coro based PSGI web server

Do events the coro-way, with EV

Only real threads in perl

HTTP Cookie parser in C (Please use CGI::Cookie::XS instead)

Cookie string generator / parser

Perl module for uuencode and uudecode

Read/write encrypted ASN.1 PEM files

Color space conversions and named lookups

Functions for converting to/from bencoded strings

ASN.1 Encode/Decode library

Run code after a subroutine call, preserving the context the subroutine would have seen if it were the last statement in the caller

Facility for creating read-only scalars, arrays, and hashes

Generic connection to a hierarchical-structured data set

Simple, versioned access to configuration data

Read/Write .ini style files with as little code as possible

Load and save configuration files in a standard format

Simple configuration file class

Read and write property files

Layered configuration, because configs are like ogres

Load a configuration directory tree containing YAML, JSON, XML, Perl, INI or Config::General files

MVP config reader for .ini files

Multivalue-property package-oriented configuration

Load (and optionally decrypt via GnuPG) user/pass identity information

Simple .ini-file format

Grammar-based, user-friendly config parser

Git-compatible config file parsing