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Category: File Encryption

開發者的透明加密指南

前言 在現今「零信任」的資訊安全架構中,確保敏感檔案在任何時刻都處於加密狀態,已不僅僅是最佳實務,更是企業安全的必要條件。然而,要在檔案系統層級實作穩定、無縫的加密功能,往往相當複雜。這正是 EaseFilter Encryption Filter Driver(EEFD)SDK 發揮作用的地方。EEFD 專為 Windows 開發者設計,能夠快速實作即時檔案加密功能,減少整合成本。 為何開發者需要 EEFD? 傳統的檔案加密函式庫多需改動應用程式層級的邏輯,不僅增加部署難度,也易遺漏關鍵檔案。EEFD 採用核心模式(Kernel Mode)過濾驅動方式,能於檔案存取 I/O 操作時即時透明地進行加解密,大幅簡化開發流程,且保證檔案始終以加密形式儲存於磁碟中。 運作方式簡述 EEFD 攔截檔案系統呼叫,並根據預設的加密規則於記憶體中進行 AES 加解密。開發者可設定特定資料夾的自動加密行為,並依據使用者或程序名稱來授權或封鎖存取。 開發者可用的核心功能 即時透明加密:檔案於寫入時即加密,讀取時於記憶體中解密,使用者無感。 AES-256 及 Microsoft CNG 支援:採用業界標準的高強度加密演算法,支援硬體加速。 基於程序與使用者的存取控制:可根據程序名稱或登入使用者身分進行加解密授權。 整合 DRM:可將數位權限管理(DRM)資料嵌入加密檔案中以實施存取政策。 多語言支援:支援 C++、C# 等可呼叫 Win32 API 的語言。 快速開始:設定自動加密規則 var rule = new FileFilter(“C:\\SensitiveFiles\\*”); rule.EnableEncryption = true; rule.EncryptionKey = Utils.GetKeyByPassPhrase(“StrongPassword”, 32); rule.ProcessNameAccessRightList.Add(“authorizedApp.exe”, FilterAPI.ALLOW_MAX_RIGHT_ACCESS); filterControl.AddFileFilterRule(rule); 進階應用:具備 […]

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Building Secure File Systems with EEFD: A Developer’s Guide to Transparent File Encryption

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| File Encryption, File Security

Introduction In today’s zero-trust world, ensuring that sensitive files are encrypted at all times is not just a security best practice—it’s a requirement. However, implementing reliable and seamless encryption at the file system level can be a complex task. That’s where the EaseFilter Encryption Filter Driver (EEFD) SDK steps in. Designed for Windows developers, EEFD […]

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Auto File Encryption Demo

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| File Control, File Encryption, File Security

Download EaseFilter Encryption Filter SDK Setup File Download EaseFilter Encryption Filter SDK Zip File Auto File Encryption Demo was developed with EaseFilter Encryption Filter Driver(EEFD) SDK, it demonstrates  how to encrypt the file transparently, it allows only the authorized processes or users to read the encrypted file, the unauthorized processes or users only can get […]

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BitLocker vs. EFS vs. EEFD

Download EaseFilter Encryption Filter Driver SDK Setup File Download EaseFilter Encryption Filter Driver SDK Zip File BitLocker vs. EFS, there are several differences between BitLocker Drive Encryption and the Encrypting File System. BitLocker is designed to help protect all of the personal and systems files on the drive Windows is installed on if your computer […]

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File Encryption In C#

Download EaseFilter Encryption Filter Driver SDK Setup File Download EaseFilter Encryption Filter Driver SDK Zip File File encryption is the process of converting data in a file into a secret code to protect the data. It is a security measure that ensures that only authorized users can access the data in the file. Encryption is […]

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File Encryption In C++

Download EaseFilter Encryption Filter Driver SDK Setup File Download EaseFilter Encryption Filter Driver SDK Zip File File encryption is the process of converting data in a file into a secret code to protect the data. It is a security measure that ensures that only authorized users can access the data in the file. Encryption is […]

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EEFD透明文件加密開發包

Download EaseFilter Encryption Filter Driver SDK Setup File Download EaseFilter Encryption Filter Driver SDK Zip File EsaeFilter Encryption Filter Driver (EEFD)為軟件開發人員提供全面的安全解決方案來開發透明的訪問文件級加密產品。透明地加密新創建的文件。在客戶端定義的策略控制下授權或阻止訪問加密/解密。 EEFD是文件過濾器驅動程序,實現透明訪問文件級加密。它攔截針對文件系統的 I/O 請求。通過在請求到達其預期的目標文件系統之前攔截請求,過濾器驅動程序可以加密或解密請求的原始目標提供的數據緩衝區。儘管市場上有很多加密軟件庫,但開發一個可靠的透明訪問文件加密產品仍然非常複雜。 EEFD是一個成熟的商業產品。它為開發人員提供了完整的模塊化框架,即使沒有驅動程序開發經驗也可以在一天內構建訪問文件加密軟件。 EEFD 使用帶有 AES 算法的 Microsoft CNG 加密庫。 AES加密算法(又稱Rijndael算法)是美國國家標準技術研究院(NIST)於2001年制定的一種電子數據加密規範。AES是一種符合美國FIPS 140-2標準的對稱分組密碼算法.它具有 128 位的固定塊大小和 128、192 或 256 位的密鑰大小。 EEFD 支持訪問文件加密的每個進程訪問限制。您可以為加密文件設置進程的白名單或黑名單。白名單進程可以讀取加密文件得到明文。黑名單進程只能得到加密後的原始數據。 EEFD 利用 Isolation Mini Filter Driver 技術為進程實現加密文件的兩個視圖。未經授權的進程將看到帶有原始密文的加密數據視圖。授權進程將看到帶有明文的解密數據視圖。 EEFD 支持將自定義數字版權管理 (DRM) 數據嵌入到加密文件中的文件頭。使用自定義 DRM 數據,您可以定義自定義加密訪問策略,它允許您動態地完全控制加密文件訪問。您可以隨時授予、撤銷或終止加密文件訪問權限,即使在加密文件已發送出您的組織之後也是如此。您可以用EEFD開發安全文件共享解決方案的應用程序。 […]

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Understand AES Encryption

Download EaseFilter Encryption Filter Driver SDK Setup File Download EaseFilter Encryption Filter Driver SDK Zip File The Advanced Encryption Standard (AES), also known by its original name Rijndael, is a specification for the encryption of electronic data established by the U.S. National Institute of Standards and Technology in 2001. The AES encryption is a symmetric […]

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Symmetric Encryption

Download EaseFilter Encryption Filter Driver SDK Setup File Download EaseFilter Encryption Filter Driver SDK Zip File Symmetric encryption is algorithms for cryptography that use the same cryptographic keys for both the encryption of plaintext and the decryption of ciphertext. The keys may be identical, or there may be a simple transformation to go between the two keys. The keys, in practice, represent a shared secret between two […]

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Asymmetric Encryption

Download EaseFilter Encryption Filter Driver SDK Setup File Download EaseFilter Encryption Filter Driver SDK Zip File Asymmetric Encryption, or public-key cryptography, is the field of cryptographic systems that use pairs of related keys. Each key pair consists of a public key and a corresponding private key. Key pairs are generated with cryptographic algorithms based on mathematical problems termed one-way functions. Security of public-key cryptography depends […]

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File Knowledge Base

  • Understand File I/O
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File Encryption

  • Understand File Encryption
  • Understand AES Encryption
  • File Encryption In C#
  • File Encryption In C++
  • BitLocker vs. EFS vs. EEFD
  • Symmetric Encryption
  • Asymmetric Encryption
  • Digital Signature
  • EEFD透明文件加密開發包
  • EaseFilter文件監控開發包
  • EaseFilter文件訪問控制開發包
  • 開發者的透明加密指南

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