RsaCracker - 适用于CTF的强大RSA破解器。支持RSA、X509、

项目说明

RSA Cracker

![Build]()
![Crate.io]()
![Docker Image ]()
![codecov]()

Powerful RSA cracker for CTFs. Supports RSA, X509, OPENSSH, PKCS#12, PKCS#7, and CSR in PEM and DER formats.

RsaCracker provides a simple, extensible interface to analyze and recover RSA private keys and to uncipher messages using a large collection of targeted attacks and heuristics.

TLDR - Quick start

NOTE: To build on windows, you need to use MSYS2. This is required because of the rug dependency. See building-on-windows for more information.

Usage

You can also use a dump as input:

Examples

Uncipher a message from a public key and write it to a file

Uncipher a message from n and e

Uncipher a message from n, e and other known

Uncipher a file from a public key

Reco key from partial prime information

When you know some bits/digits of a prime (MSB or LSB), you can use wildcards (?) in binary, octal, decimal, or hexadecimal notation:

Each ? represents one digit in the specified radix.

You can also use ellipsis (...) when the unknown length should be inferred from the modulus size:

Run a specific attack with arguments

Generate a private key from a public key

Generate a public key from e and n

Dump private key secrets

Remo from a private key

Add password to a private key

Show all factors of n

Run discrete logarithm attack: when c and e are swapped in the RSA encryption formula (e^c mod n)

Multi-key attacks

RsaCracker supports attacks that require multiple RSA keys. You can provide multiple keys in several ways:

Method 1: Via raw file with indexed notation

Method 2: --key parameters

Method 3: -n parameters

Method 4: -c and -e parameters

Docker

From dockerhub:

Or build it yourself:

License

Licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
dual licensed as abo any additional terms or conditions.

项目信息

开发语言：Rust

Star 数：155

技术要点

该项目属于CTF思路方向的开源资源，代码结构清晰，适合安全研究人员学习参考。项目围绕Powerful RSA cracker for CTFs. Supports RSA, X509, OPENSSH, PKCS#12, PKCS#7, and CSR in PEM and DER formats.展开，提供了可运行的实现，对理解相关安全机制、工具原理与攻防技术具有较高的研究价值。

从技术实现角度看，此类项目的核心在于对底层原理的深入理解与工程化落地。开发者在研究过程中可以结合官方文档与社区讨论，梳理项目的初始化流程、核心模块职责与数据流转，逐步掌握其中的技术细节与设计思路。

使用与学习建议

1. 下载源码压缩包，解压到本地环境。

2. 根据项目类型准备对应的运行环境与依赖。

3. 按照 README 中的步骤完成配置与部署。

4. 在隔离的测试环境中运行验证，避免影响生产系统。

免责声明

本资源来源于开源社区，仅供安全研究、技术学习与合法授权范围内的攻防演练使用，请勿用于任何非法或侵害他人权益的用途。使用本项目产生的一切后果由使用者自行承担。