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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.
Crypto++ is a C++ class library of cryptographic schemes.
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.
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).
The Olm library implements the Double Ratchet cryptographic ratchet. It is written in C and C++11, and exposed as a C API.
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.
Minisign is a dead simple tool to sign files and verify signatures. It is portable, lightweight, and uses the highly secure Ed25519 public-key signature system. Signature written by minisign can be verified using OpenBSD's signify tool: public key files and signature files are compatible. However, minisign uses a slightly different format to store secret keys. Minisign signatures include trusted comments in addition to untrusted comments. Trusted comments are signed, thus verified, before being displayed.
Asignify offers public cryptographic signatures and encryption with a library or a command-line tool. The tool is heavily inspired by signify as used in OpenBSD. The main goal of this project is to define a high level API for signing files, validating signatures and encrypting using public-key cryptography. Asignify is designed to be portable and self-contained with zero external dependencies. Asignify can verify OpenBSD signatures, but it cannot sign messages in OpenBSD format yet.
The Olm library implements the Double Ratchet cryptographic ratchet. It is written in C and C++11, and exposed as a C API.
This package provides a cryptographic hash function that is fast, secure, parallelizable, capable of incremental updates.
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.
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.
The Olm library implements the Double Ratchet cryptographic ratchet. This package contains its Python bindings.
This package provides a crate to sign files and verify signatures.
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.
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.
RHash is a console utility for calculation and verification of magnet links and a wide range of hash sums like CRC32, MD4, MD5, SHA1, SHA256, SHA512, SHA3, AICH, ED2K, Tiger, DC++ TTH, BitTorrent BTIH, GOST R 34.11-94, RIPEMD-160, HAS-160, EDON-R, Whirlpool and Snefru.
This package provides b3sum, a command line checksum tool based on the BLAKE3 cryptographic hash function.
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.
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.
ccrypt is a utility for encrypting and decrypting files and streams. It was designed as a replacement for the standard unix crypt utility, which is notorious for using a very weak encryption algorithm. ccrypt is based on the Rijndael block cipher, a version of which is also used in the Advanced Encryption Standard (AES, see http://www.nist.gov/aes). This cipher is believed to provide very strong security.
Sodium is a new easy-to-use high-speed software library for network communication, encryption, decryption, signatures, etc.
BLAKE2 is a cryptographic hash function faster than MD5, SHA-1, SHA-2, and SHA-3, yet is at least as secure as SHA-3.
Tomb is an application to manage the creation and access of encrypted storage files: it can be operated from commandline and it can integrate with a user's graphical desktop.