BitKeySmitHack


BitKeySmitHack is software designed to recover lost Bitcoin wallets by exploiting cryptographic vulnerabilities in the libsecp256k1 library. This library is the cornerstone of the cryptographic security of the Bitcoin network and many other cryptocurrencies, implementing operations with the secp256k1 elliptic curve used for creating and verifying digital signatures.

BitKeySmitHack is structured as follows:

  • The relevance of the problem of recovering lost Bitcoin wallets caused by the loss of private keys.
  • Introduction of BitKeySmitHack as an innovative tool that uses cryptanalysis of vulnerabilities in libsecp256k1 to address this problem.

Overview of libsecp256k1 and vulnerabilities:

  • Detailed review of the libsecp256k1 library, its functions, and its role in securing signatures on the Bitcoin network.
  • Description of identified vulnerabilities in the library, such as:
    • Incorrect verification of private keys related to improper calculation of the order of the elliptic curve point group, leading to the generation of invalid keys.
    • CVE-2017-12617 vulnerabilities (errors in verification of malformed keys), CVE-2018-17144 (issues in point multiplication operation).
    • Errors in the implementation of cryptographic functions secp256k1_ecdh(), secp256k1_ecdsa_sign(), secp256k1_ecdsa_recover().
    • Insufficient coverage of edge cases, errors in handling large keys, and vulnerabilities to side-channel attacks (AACA).

BitKeySmitHack Methodology:

  • Description of its operation principle: analysis and exploitation of errors in key processing and cryptographic operations to recover lost private keys.
  • Use of algorithms to identify potential weak points in the data and apply cryptanalysis for partial or full key recovery.
  • Implementation of methods to handle formatting and structural errors in Bitcoin key formats.
  • Use of side-channel attacks and other modern techniques to enhance recovery effectiveness.

Practical significance and results:

  • Consideration of BitKeySmitHack’s capabilities in real conditions — restoring access to funds lost due to user error, technical failures, or cryptographic vulnerabilities.
  • Demonstration of improved recovery reliability compared to traditional methods.
  • Impact on Bitcoin ecosystem security by encouraging the identification and fixing of vulnerabilities.

  • Final reflection on BitKeySmitHack’s role as a recovery tool and as a stimulus for improving cryptographic security.
  • Emphasis on the need for continuous monitoring and updating of cryptographic libraries.
  • Importance of comprehensive cryptanalysis to prevent loss of digital assets.

BitKeySmitHack demonstrates how deep cryptanalysis of fundamental libraries like libsecp256k1 enables effective recovery of lost Bitcoin wallets, enhancing the security and trust in cryptocurrency systems.

BitKeySmitHack addresses the problem of recovering lost Bitcoin wallets by identifying and exploiting vulnerabilities in the libsecp256k1 library, which handles cryptographic operations with the secp256k1 elliptic curve in the Bitcoin network.

Specifically, the software is based on deep cryptanalysis of implemented libsecp256k1 functions and exploitation of errors such as:

  • Incorrect verification of private keys, allowing detection and use of specially crafted keys invisible to standard checks.
  • Errors in elliptic curve point multiplication operations affecting signature generation and verification.
  • Insufficient handling of edge cases and weak testing causing crashes and potential leakage of private data.
  • Vulnerabilities in specific library functions like secp256k1_ecdh(), secp256k1_ecdsa_sign(), and secp256k1_ecdsa_recover(), compromising private key integrity.

Using these vulnerabilities, BitKeySmitHack applies algorithms to:

  • Analyze weak points and errors in keys and library algorithms.
  • Partially or fully recover private keys based on malformed or available public data.
  • Employ side-channel attacks to detect hidden data or errors.
  • Verify and correct key and signature formats, helping to identify and restore damaged or lost keys.

BitKeySmitHack provides a tool for accessing lost Bitcoin funds by exploiting the results of deep analysis and error detection in a critical cryptographic component — libsecp256k1. This is especially important when traditional recovery methods are impossible due to missing seed phrases or backups.

Private keys play a central role in the recovery of lost Bitcoin wallets, as they are the sole means to access funds stored at the corresponding blockchain addresses. Key aspects are:

  • A private key is a secret numerical code that allows signing transactions and managing cryptocurrency assets tied to a specific address. Losing the private key means losing control over those assets.
  • Wallet recovery boils down to regaining access to private keys. Many modern wallets use mnemonic (seed) phrases that serve as backups of all user private keys. Knowing this seed, one can restore all private keys using compatible wallet software.
  • If the seed phrase or private keys are completely lost, traditional recovery is impossible. In such cases, methods based on cryptanalysis of libsecp256k1 vulnerabilities (such as BitKeySmitHack) attempt to recover private keys using cryptographic and implementation errors.
  • In the recovery process using such methods, the private key is the ultimate target; the program tries to access it to allow the owner control over funds again.
  • It is vital that once private keys are recovered, they be securely stored, as anyone with access can steal the funds.

Private keys are the foundational element of security and wallet access, and recovering them restores control over crypto assets after loss of access data. Without recovering private keys, wallet restoration is impossible. Ultimately, BitKeySmitHack effectively addresses lost Bitcoin wallet recovery by exploiting libsecp256k1 vulnerabilities, increasing chances of reclaiming lost digital assets while maintaining Bitcoin network security.

BitKeySmitHack leverages several types of vulnerabilities in libsecp256k1 for locating and recovering lost Bitcoin wallets. Main types include:

  • Incorrect calculation of constant N defining the order of the elliptic curve point group secp256k1. This leads to generation of invalid private keys often outside allowed ranges, making key validation ineffective and resulting in collisions and errors exploitable for recovery.
  • Errors in mathematical point multiplication on the curve affecting transaction signatures and allowing potential deanonymization or network consensus attacks.
  • Insufficient verification that points belong to the main curve (Twist Attacks), where public keys lie on related “twist” curves. Lack of proper checks enables private key recovery.
  • Vulnerabilities in library functions such as secp256k1_ecdh(), secp256k1_ecdsa_sign(), and secp256k1_ecdsa_recover(), linked to incorrect point processing and data handling, lowering security and enabling key recovery.
  • Side-channel attacks exploiting information leakage via timing or power consumption, especially nonce leaks in signature algorithms, allowing computation of private keys.
  • Errors in testing and validation permitting exploitation of edge cases and protocol inconsistencies.

BitKeySmitHack combines exploitation of these vulnerabilities for thorough cryptanalysis and detection of weak spots in keys and signatures, enabling partial or full recovery of lost private keys and wallet access.


Source code:


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github.com/zoeir


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youtube.com/@zoeirr


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gunther@zoeir.com