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AES Crypt 4 Released

August 31, 2024

One of the most popular file encryption software products on the Internet is AES Crypt. This project was supported by Packetizer, but has now been transitioned to Terrapane where the original author continues development and support.

AES Crypt 4 is the fourth major version of the popular encryption software. AES Crypt 4 is available as a GUI and command-line application for Windows, Linux, and Mac, with both binaries and source code published.

Key Updates:

  • Enhanced Security: The key derivation function now uses FIPS-recommended PBKDF2 using HMAC-SHA-512 with 300,000 iterations, configurable via the command-line tool. We’ve also switched to PKCS#7 padding.
  • Performance Boost: Intel Intrinsics functions improve performance by approximately 30% on Intel processors.
  • Apple Silicon Support: The Mac version is now compiled for Apple Silicon.
  • Safety Measures: Mac and Linux versions now refuse to overwrite existing files, aligning with the Windows version.
  • Command-Line Enhancements: More options, integrated key generation, and a progress meter for long files.
  • Code Overhaul: Rewritten in C++20 with daily unit tests and improved integration tests for enhanced code safety.
  • Backward Compatibility: AES Crypt 4 remains fully compatible with all previous versions, ensuring access to encrypted files created by older versions.

All packages are available at https://www.aescrypt.com.

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