Delfin for Windows 0.8

Delfin 0.8 improves the stream cipher algorithm's security and performance.

• Improved Cipher stream algorithm execution speed by about 18%
• Fixed a short-circuit operation that compromised the complexity of the cipher algorithm
• Created header version 1 (HV1) to ensure backwards compatibility with old cipher

The 18% speedup applies to the generation of the stream cipher. On a typical machine, this translates to a second faster for every dozen or so MB of data to crypt.

Delfin for Windows 0.7

Delfin 0.7 improves flexibility and informativity.

• Officially accepts multiple image file formats for encryption, automating the conversion to PNG.
• Better alerts for cancelled or failed encryptions/decryptions, showing a message box and updating the feed with details.
• Fixed a rare bug where a header read with a wrong 'perfect storm' password could crash the decryption with an integer overflow.

Delfin for Windows 0.6.1

Delfin 0.6.1 fixes some bugs.

• Fixed an info text improperly saying "right" instead of "left".
• Fixed a crash when loading an image was stopped by a program such as an antivirus.

Delfin for Windows 0.6

Delfin 0.6 adds a new header system, establishes compatibility measures, and prepares the project to advance to 1.0.

• Headers now contain versioning information, with the intent of making decryption fully backwards compatible to 0.6. This allows headers to be extended over time to contain extra information as the development of the project demands. As a consequence, files encrypted before 0.6 cannot be decrypted, but all files from 0.6 on should be decryptable for the life of the project.
• Headers are now encrypted via the same password/stream cipher system which encrypts the file data, protecting any header data which may be considered critical.
• Added 1.0 TODOS.md to the project to monitor feature development and to direct the project's development towards 1.0.
• Added Readme.md to better explain the project.
• Made project more dolphin-friendly.

Delfin for Windows 0.5

Delfin 0.5 adds new performance and ease of use features.

• Encryption and decryption now run in the background, making the form more responsive and allowing for premature cancellation.
• Passwords can now contain many common symbols, in addition to already-supported letters and numbers.
• Some feed and info texts were added or revised to better inform the user.

Delfin for Windows 0.4

Delfin 0.4 adds several features and improvements over Delfin 0.2.2:

• Passwords are now created with a secure hash and stream cipher algorithm to ensure maximum security. The old and far weaker encryption method is no longer supported and files encrypted before 0.4 cannot be recovered. Passwords can now contain all characters and digits.
• Password field now reveals/hides on double-click, to ensure password is not accidentally revealed on hover.
• Encryption and decryption now fail safely and alert user to reason for failure, instead of excepting and terminating the application.
• Various stability, performance, and maintainability improvements.