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HsOpenSSL is an OpenSSL binding for Haskell. It can generate RSA and DSA keys, read and write PEM files, generate message digests, sign and verify messages, encrypt and decrypt messages. It has also some capabilities of creating SSL clients and servers. This package is in production use by a number of Haskell based systems and stable.

A generic interface for cryptographic operations (hashes, ciphers, randomness). Maintainers of hash and cipher implementations are encouraged to add instances for the classes defined in Crypto.Classes. Crypto users are similarly encouraged to use the interfaces defined in the Classes module. Any concepts or functions of general use to more than one cryptographic algorithm (ex: padding) is within scope of this package.

amavisd-milter is a sendmail milter for amavisd-new version 2.2.0 and above which use the new AM.PDP protocol. Full amavisd-new functionality is available, including adding spam and virus information header fields, modifying Subject, adding address extensions and removing certain recipients from delivery while delivering the same message to the rest.

md5deep is a cross-platform set of programs to compute various types of message digests on an arbitrary number of files. The programs run on Windows, Linux, *BSD, OS X, Solaris, and should run on most other platforms. md5deep is similar to the md5sum program found in the GNU Coreutils package, but has many additional features.

tthsum generates and checks TTH checksums (root of the THEX hash tree). The Merkle Hash Tree is a hash construct that exhibits desirable properties for verifying the integrity of files and file subranges in an incremental or out-of-order fashion. The tool uses the Tiger hash algorithm for both the internal and the leaf nodes, and has an interface identical to md5sum.

dfVFS, or Digital Forensics Virtual File System, provides read-only access to file-system objects from various storage media types and file formats. The goal of dfVFS is to provide a generic interface for accessing file-system objects, for which it uses several back-ends that provide the actual implementation of the various storage media types, volume systems and file systems.

This library contains the opty2 library for dynamic generation of x86 multi-byte NOPs. This is useful in writing exploits and encoders. It allows you to dynamic generate variable length instruction sets that are equivalent to a No Operation (NOP) without using the actual 0x90 bytecode. The original code was written by Optyx and spoonm.

The signify utility creates and verifies cryptographic signatures. This version of signify is part of outils, a portable collection of non-standard OpenBSD tools. This port comes with OpenBSD's release public keys allowing you to verify an OpenBSD release before installation.

If you've ever needed to create 10 (or even 10,000) passwords on the fly with varying preferences (lowercase, uppercase, no confusing characters, special characters, minimum length, etc.), you know it can become a pretty pesky task. This module makes it possible to create flexible and secure passwords, quickly and easily.

This module provides a convenient, object-oriented interface to Apache-style .htpasswd files. It supports passwords encrypted via MD5, SHA1, and crypt, as well as plain (cleartext) passwords. Additional fields after username and password, if present, are accessible via the extra_info array.