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This package provides a complete GCC cross toolchain for C/C++ development to be installed in user profiles. This includes GCC, as well as libc (headers and binariesl), and Binutils. GCC is the GNU Compiler Collection.
This package provides a complete GCC cross toolchain for C/C++ development to be installed in user profiles. This includes GCC, as well as libc (headers and binariesl), and Binutils. GCC is the GNU Compiler Collection.
Sodium is a new easy-to-use high-speed software library for network communication, encryption, decryption, signatures, etc.
This package provides a simple password-based encryption utility as a demonstration of the scrypt key derivation function. Scrypt is designed to be far more resistant against hardware brute-force attacks than alternative functions such as PBKDF2 or bcrypt.
hash_extender is a utility for performing hash length extension attacks supporting MD4, MD5, RIPEMD-160, SHA-0, SHA-1, SHA-256, SHA-512, and WHIRLPOOL hashes.
Optimized C library for EC operations on curve secp256k1.
Features:
secp256k1 ECDSA signing/verification and key generation.
Additive and multiplicative tweaking of secret/public keys.
Serialization/parsing of private keys, public keys, signatures.
Constant time, constant memory access signing and public key generation.
Derandomized ECDSA (via RFC6979 or with a caller provided function.)
Very efficient implementation.
Suitable for embedded systems.
No runtime dependencies.
Optional module for public key recovery.
Optional module for ECDH key exchange.
Optional module for Schnorr signatures according to BIP-340.
The currently provided message digest algorithms are:
MD2
MD4
MD5
RIPEMD-160
SHA-1
SHA-2 (SHA-256, SHA-384 and SHA-512)
The libdecaf library is an implementation of elliptic curve cryptography using the Montgomery and Edwards curves Curve25519, Ed25519, Ed448-Goldilocks and Curve448, using the Decaf encoding.
Transcrypt is a script to configure transparent encryption of sensitive files stored in a Git repository. Files that you choose will be automatically encrypted when you commit them, and automatically decrypted when you check them out. The process will degrade gracefully, so even people without your encryption password can safely commit changes to the repository's non-encrypted files.
This module is intended to provide a cryptographically-secure replacement for Perl's built-in rand function. "Cryptographically secure", in this case, means:
No matter how many numbers you see generated by the random number generator, you cannot guess the future numbers, and you cannot guess the seed.
There are so many possible seeds that it would take decades, centuries, or millennia for an attacker to try them all.
The seed comes from a source that generates relatively strong random data on your platform, so the seed itself will be as random as possible.
Enchive is a tool to encrypt files to yourself for long-term archival. It's a focused, simple alternative to more complex solutions such as GnuPG or encrypted filesystems. Enchive has no external dependencies and is trivial to build for local use. Portability is emphasized over performance.
This module provides implementations for a number of byte-oriented sources of random data.
EncFS creates a virtual encrypted file system in user-space. Each file created under an EncFS mount point is stored as a separate encrypted file on the underlying file system. Like most encrypted file systems, EncFS is meant to provide security against off-line attacks, such as a drive falling into the wrong hands.
libb2 is a portable implementation of the BLAKE2 family of cryptographic hash functions. It includes optimised implementations for IA-32 and AMD64 processors, and an interface layer that automatically selects the best implementation for the processor it is run on.
BLAKE2 (RFC 7693) is a family of high-speed cryptographic hash functions that are faster than MD5, SHA-1, SHA-2, and SHA-3, yet are at least as secure as the latest standard, SHA-3. It is an improved version of the SHA-3 finalist BLAKE.
The Olm library implements the Double Ratchet cryptographic ratchet. This package contains its Python bindings.
ISAAC (Indirection, Shift, Accumulate, Add, and Count) is a fast pseudo-random number generator. It is suitable for applications where a significant amount of random data needs to be produced quickly, such as solving using the Monte Carlo method or for games. The results are uniformly distributed, unbiased, and unpredictable unless you know the seed.
This package provides a Perl interface to the ISAAC pseudo random number generator.
The signify utility creates and verifies cryptographic signatures using the elliptic curve Ed25519. This is a Linux port of the OpenBSD tool of the same name.
Optimized C library for cryptographic operations on curve secp256k1.
This library is used for consensus critical cryptographic operations on the Bitcoin Cash network.
Features:
secp256k1 ECDSA signing/verification and key generation.
secp256k1 Schnorr signing/verification (Bitcoin Cash Schnorr variant).
Additive and multiplicative tweaking of secret/public keys.
Serialization/parsing of secret keys, public keys, signatures.
Constant time, constant memory access signing and pubkey generation.
Derandomized ECDSA (via RFC6979 or with a caller provided function).
Very efficient implementation.
Suitable for embedded systems.
Optional module for public key recovery.
Optional module for ECDH key exchange (experimental).
Optional module for multiset hash (experimental).
Keyutils is a set of utilities for managing the key retention facility in the Linux kernel, which can be used by file systems, block devices, and more to gain and retain the authorization and encryption keys required to perform secure operations.
Botan is a cryptography library, written in C++11, offering the tools necessary to implement a range of practical systems, such as TLS/DTLS, PKIX certificate handling, PKCS#11 and TPM hardware support, password hashing, and post-quantum crypto schemes. In addition to the C++, botan has a C89 API specifically designed to be easy to call from other languages. A Python binding using ctypes is included, and several other language bindings are available.
DigiDoc is an XML file format for documents with digital signatures used by the Estonian ID card infrastructure. This library allows for creation and reading of DigiDoc files.
Keychain is usually run from shell profiles like ~/.bash_profile, but it is also possible to use it with non-interactive shells. It works with various operating systems (including GNU/Linux and HURD) and shells (like bourne-compatible, csh-compatible and fish shells). By default Keychain will only start ssh-agent, but it can also be configured to start gpg-agent.
Hpenc is a command-line tool for performing authenticated encryption (AES-GCM and ChaCha20-Poly1305) of streaming data. It does not perform an asymmetric key exchange, instead requiring the user to distribute pre-shared keys out of band. It is designed to handle large amounts of data quickly by using all your CPU cores and hardware acceleration.
libscrypt implements scrypt key derivation function. It is designed to be far more secure against hardware brute-force attacks than alternative functions such as PBKDF2 or bcrypt.