Digital-Signature-Forgery-Attack

在本文中，我们将探讨数字签名伪造攻击（Digital Signature Forgery Attack）的密码学原理，其后果对比特币网络中的交易安全构成威胁，因为数字签名用于确认加密货币转账的所有权和授权。我们将根据现代研究和已识别的漏洞，分析此类攻击对比特币的影响示例。 数字签名伪造攻击（Digital Signature Forgery Attack）是指攻击者试图创建一个被比特币网络视为有效的虚假 ECDSA 数字签名。这种攻击允许在不知道所有者私钥的情况下授权交易，从而危及 BTC 币持有者加密钱包中资金的安全。 教程：https://youtu.be/qbu1mC1wyA...

Johnny-You-Are-Fired

Johnny-You-Are-Fired USENIX 论文的配套材料 | 完整论文 此处 摘要 OpenPGP 和 S/MIME 是加密和数字签名电子邮件的两大标准。数字签名本应保证消息的真实性和完整性。在这项工作中，我们展示了针对各种 OpenPGP 和 S/MIME 电子邮件签名验证实现的五类实际可行的伪造攻击：1 我们分析了 S/MIME 容器格式中的边界情况。2 我们利用了最广泛使用的 OpenPGP 实现 GnuPG API 中的带内信令。3 我们应用 MIME 包装攻击，滥用电子邮件客户端对部分签名消息的处理。4 我们分析了签名消息与发送者身份绑定中的弱点。5...

CVE-2026-22001-SPHINCS-WOTS-Weak-Randomness-Forgeable-Signature

CVE-2026-22001 – SPHINCS+ WOTS+ 弱随机性签名伪造 概述 SPHINCS+ 后量子签名方案的一种实现，在生成 WOTS+ 签名时使用了有缺陷的随机数生成器。同一 nonce k 在多个签名中被重复使用，使攻击者能够恢复私钥并伪造任意消息。 漏洞详情 类型： 加密随机性失败 影响： 完全密钥泄露、签名伪造。 根本原因： WOTS+ 签名算法依赖于每次签名使用唯一的随机值 k。k 的重复使用会泄露可揭示种子的代数关系。 漏洞利用演示 运行模拟： python sphincsforge.py python exploitsphincsforge.py...

AlmaLinux 9.2 [TuxCare] Security Update: poppler / poppler-cpp / poppler-cpp-devel / poppler-devel / etc (ALMALINUX9.2:CLSA-2026:1784899428)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1784899428 advisory. - NSSCryptoSignBackend.cc in Poppler before 25.04.0 does not verify the adbe.pkcs7.sha1 signatures on documents, resulting in potential...

CVE-2026-0265-check

CVE-2026-0265 脆弱性評価ツール いかなるセッションも認証せず、状態を変更することなく、Palo Alto Networks PAN-OS GlobalProtectポータルがCVE-2026-0265に対して脆弱かどうかを安全に判定します。 説明 CVE-2026-0265 は、認証プロファイルがCloud Authentication Service CAS を使用している場合にトリガーされる、PAN-OS および Panorama に影響を与えるリモート認証バイパスです。脆弱な panauthverify 関数 libpanmp.so 内 は、攻撃者が制御する alg...

Improper Verification of Cryptographic Signature

Overview PyJWT is a Python implementation of RFC 7519. Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the preparekey method in jwt/algorithms.py, where a public JWK container such as a JWK Set with a kty member nested inside a JSON array o...

CVE-2022-21449

CVE-2022-21449 Javaの「サイキック署名」に対して脆弱なアプリケーション向けに、base64署名を生成するリポジトリです。Node.js環境で実装されています😅 実行前に、https://github.com/davwwwx/elliptic からEllipticの改造版フォークをインストールしてください。 $ npm install 署名を生成する $ node index.js 脆弱なアプリケーションの例をDataDog/security-labs-pocsから入手してください -...

Improper Verification of Cryptographic Signature

Overview PyJWT is a Python implementation of RFC 7519. Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via ispemformat in jwt/utils.py, which fails to recognize certain loader-accepted PEM formatting variants as valid PEM. The fix for...

Security Bulletin: IBM DataPower Gateway affected by multiple CVEs

Summary IBM DataPower Gateway has addressed multiple vulnerabilities versions 11.0.0.3, 10.6.0.11, and 10.5.0.23 Vulnerability Details CVEID:CVE-2026-16177 DESCRIPTION: IBM DataPower Gateway could allow a remote authenticated attacker to obtain sensitive information due to an out-of-bounds read...

librenswan: IKEv1 Denial of Service via RSA-SHA1 (PKCS#1 Version 1.5 Encrypted) authentication payload

A flaw was found in Libreswan's implementation of IKEv1 authentication via raw RSA signatures. When processing an IKEv1 packet using PKCS 1 v1.5 RSA encryption, the RSAauthenticatehashsignaturerawrsa function fails to properly validate the length of the authentication hash. A remote,...

EUVD-2026-84946

IBM Financial Transaction Manager FTM for RedHat OpenShift could allow a remote attacker to forge validly-signed messages due to improper verification of cryptographic signatures...

CVE-2026-18152

IBM Financial Transaction Manager FTM for RedHat OpenShift could allow a remote attacker to forge validly-signed messages due to improper verification of cryptographic signatures...

CVE-2026-18152 IBM Financial Transaction Manager (FTM) is Impacted by Multiple Vulnerabilities

IBM Financial Transaction Manager FTM for RedHat OpenShift could allow a remote attacker to forge validly-signed messages due to improper verification of cryptographic signatures...

PT-2026-97094

Name of the Vulnerable Software and Affected Versions IBM Financial Transaction Manager FTM for RedHat OpenShift affected versions not specified Description Improper verification of cryptographic signatures could allow a remote attacker to forge validly-signed messages. Recommendations At the...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: gnupg2 (UTSA-2026-054045)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-054045 advisory. GnuPG through 2.3.6, in unusual situations where an attacker possesses any secret-key information from a victim's keyring and other constraints e.g., use of GPGME ar...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: gnupg2 (UTSA-2026-090063)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-090063 advisory. A flaw was found in the way certificate signatures could be forged using collisions found in the SHA-1 algorithm. An attacker could use this weakness to create forge...

CVE-2026-42784

A flaw was found in sequoia-openpgp. The library incorrectly infers key flags for older certificates when a key flags subpacket is missing, leading to a discrepancy in how key capabilities are viewed. This key flag confusion allows an attacker to bypass the back-signature check. Consequently, an...

EUVD-2026-80888

A flaw was found in sequoia-openpgp. The library incorrectly infers key flags for older certificates when a key flags subpacket is missing, leading to a discrepancy in how key capabilities are viewed. This key flag confusion allows an attacker to bypass the back-signature check. Consequently, an...

CVE-2026-42784 Sequoia-openpgp: sequoia-openpgp: cryptographic integrity compromise via key flag confusion

A flaw was found in sequoia-openpgp. The library incorrectly infers key flags for older certificates when a key flags subpacket is missing, leading to a discrepancy in how key capabilities are viewed. This key flag confusion allows an attacker to bypass the back-signature check. Consequently, an...

CVE-2026-42784

A flaw was found in sequoia-openpgp. The library incorrectly infers key flags for older certificates when a key flags subpacket is missing, leading to a discrepancy in how key capabilities are viewed. This key flag confusion allows an attacker to bypass the back-signature check. Consequently, an...