This package provides a simple, fast, self-contained copy of the Ed25519 public-key signature system with a clean interface. It also includes support for detached signatures, and thorough documentation on the design and implementation, including usage guidelines.

This package provides efficient cryptographic hash implementations for strict and lazy bytestrings. For now, CRC32 and Adler32 are supported; they are implemented as FFI bindings to efficient code from zlib.

This Haskell package provides implementation of MD5.

This Haskell package provides an incremental and one-pass, pure API to the SHA-1 hash algorithm, including HMAC support, with performance close to the fastest implementations available in other languages.

The implementation is made in C with a haskell FFI wrapper that hides the C implementation.

This package provides a repository of cryptographic primitives.

• Symmetric ciphers: AES, DES, 3DES, CAST5, Blowfish, Twofish, Camellia, RC4, Salsa, XSalsa, ChaCha.

• Hash: SHA1, SHA2, SHA3, SHAKE, MD2, MD4, MD5, Keccak, Skein, Ripemd, Tiger, Whirlpool, Blake2.

• MAC: HMAC, KMAC, Poly1305

• Asymmetric crypto: DSA, RSA, DH, ECDH, ECDSA, ECC, Curve25519, Curve448, Ed25519, Ed448

• Key Derivation Function: PBKDF2, Scrypt, HKDF, Argon2, BCrypt, BCryptPBKDF

• Cryptographic Random generation: System Entropy, Deterministic Random Generator

• Data related: Anti-Forensic Information Splitter (AFIS)

Native Haskell TLS and SSL protocol implementation for server and client. This provides a high-level implementation of a sensitive security protocol, eliminating a common set of security issues through the use of the advanced type system, high level constructions and common Haskell features. Currently implement the SSL3.0, TLS1.0, TLS1.1 and TLS1.2 protocol, and support RSA and Ephemeral (Elliptic curve and regular) Diffie Hellman key exchanges, and many extensions.

Simple cryptographic random related types: a safe abstraction for CPRNGs.

This package provides functions for X.509 certificate and revocation list validation.

A collection of crypto hashes, with a practical incremental and one-pass, pure APIs, with performance close to the fastest implementations available in other languages. The implementations are made in C with a haskell FFI wrapper that hides the C implementation.

This package provides a reader and writer for ASN1 data in raw form with supports for high level forms of ASN1 (BER, and DER).

This package provides methods for accessing and storing X.509 collections of certificates, certificate revocation lists, and exception lists.

This package provides a native Haskell TLS and SSL protocol implementation for server and client. It provides a high-level implementation of a sensitive security protocol, eliminating a common set of security issues through the use of the advanced type system, high level constructions and common Haskell features. It currently implements the SSL3.0, TLS1.0, TLS1.1 and TLS1.2 protocol, and supports RSA and Ephemeral (Elliptic curve and regular) Diffie Hellman key exchanges, and many extensions.

This Haskell package provides 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.

This Haskell package provides a platform independent method to obtain cryptographically strong entropy.

Simple crypto pseudo-random-number-generator with really good randomness property.

Using ent, a randomness property maker on one 1Mb sample:

• Entropy = 7.999837 bits per byte.

• Optimum compression would reduce the size of this 1048576 byte file by 0 percent.

• Chi square distribution for 1048576 samples is 237.02.

• Arithmbetic mean value of data bytes is 127.3422 (127.5 = random).

• Monte Carlo value for Pi is 3.143589568 (error 0.06 percent).

Compared to urandom with the same sampling:

• Entropy = 7.999831 bits per byte.

• Optimum compression would reduce the size of this 1048576 byte file by 0 percent.

• Chi square distribution for 1048576 samples is 246.63.

• Arithmetic mean value of data bytes is 127.6347 (127.5 = random).

• Monte Carlo value for Pi is 3.132465868 (error 0.29 percent).

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. You may also be interested in the tls package, http://hackage.haskell.org/package/tls, which is a pure Haskell implementation of SSL.

This library provides functions to read and write X509 certificates.

This Haskell package provides a test framework for hash and cipher operations using the crypto-api interface. Known answer tests (KATs) for common cryptographic algorithms are included.

This package provides functions for accessing and storing X.509 collections, certificates, revocation lists, and exception lists.

This package provides generic X509 support for Haskell.

This package provides Haskell tools for X.509 certificate and Certificates revocation list (CRL) validation.

This package provides a cross-platform library that tries to find a (reasonable) CA certificate bundle that can be used with HsOpenSSL to verify the certificates of remote peers. It is for HsOpenSSL what x509-system is for the tls package, and borrows some ideas from x509-system.

This Haskell package provides basic typeclasses and types for symmetric ciphers.

This package provides a simple monadic parser for ASN1 stream types, when ASN1 pattern matching is not convenient.