There is no way (yet, ;-) ), to do what you want in gnupg, as a gnupg encrypted file will show that it was encrypted either symmetrically or to a key.
But, if you don't mind XOR-ing with a large pad, and you have a secure place to keep the pad, (not on the computer with the encrypted files), you can do something like the following: [1] Encrypt whatever file you want using gnupg, and the options of --throw-keyids --armor This will produce a ciphertext output of the encrypted file, with no information about the key it was encrypted to, except for the type (dh, rsa) and the size. [2] Find, or write, a document equal to or greater, than the size of the file in [1], and save it on your computer, and do not save the file in [1]. [3] Construct a pad that XOR's from the file in [2] to the file in [1]. [4] Save the pad securely somewhere else. [5] If the pad is discovered, people will expect to use it to apply to a ciphertext and recover a plaintext, not the other way around, and you have no ciphertexts on your computer, and even if it were used correctly to recover the ciphertext, the plaintext still cannot be recovered without the key and passphrase. BUT, Only you know what your threat model is. This will probably not be a good idea to use if your threat model includes dangerous determined adversaries who know the field. vedaal _______________________________________________ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
