Webfork, thank you for your comments on InstantCrypt! Let me reply:
* Source code not available (kind of important for security software)
True. However, uses GPG as encryption engine, which is well documented. The encrypted output follows OpenPGP standards; if there was a "backdoor" one should be able to find it there. Of course, InstantCrypt could double as a Trojan somehow or secretly do other horrible things (and so could any other proprietary software that you download onto your computer) -- but it does not.
* Doesn't seem to do something more than PortablePGP, although it certainly takes up less space.
InstantCrypt has many features PortablePGP does not have:
- Connects with your email and webmail
(see: Tools | Configure E-Mail).
- Can Encrypt/Decrypt text *and* file(s) in a single process
- Decrypts PGP/MIME
files. (This is a big one: otherwise you are stuck if you get decrypted messages from e-mail plug-ins.)
- Has a reply function
for e-mail-like convenience. (And no need to select the keys again!)
- Saves everything
you did in chronological order. Thus you can always reconstruct what you encrypted/decrypted when, with whom, and where; and you can find old encryptions and decryptions.
- Has routines to facilitate key exchange via e-mail
- Has routines, e.g. in the Welcome Page
, to give an entry-level user familiarity with the main principles of encryption.
- Has extensive Help
that explains the program, the principles of asymmetric encryption, and security risks, to the lay person.
- Has demo videos
(quite bulky: 19MB; if you want to delete them, the InstantCrypt installation is even smaller)To summarize: InstantCrypt tries to present with a low threshold for beginning users ("easy to install, easy to use") without sacrificing security, without giving up too much convenience, and while maintaining interoperability (such as PGP/MIME) with other PGP programs.
InstantCrypt does not have these features that PortablePGP has:
- Detached signature for files
- Verification of detached signatures
Reason: For normal secure e-mail exchange, these features are not necessary. And for entry-level users, less (in form of features) is more.
And, by the way: I like PortablePGP. Clean, clear, optically pleasing design, easy installation (at least on my machine) and intuitive to use. Nice work!
* Can't find any reviews or information about it
No, not yet. Maybe soon? Any volunteers??
* Freeware license may disappear at any time
True. But then you can always switch to Portable PGP without loss of keys or files.