PSM Encryptor is a cryptography and steganography tool. PSM Encryptor will encrypt any group of files (including whole directory structures) but will also disguise the resulting encrypted archive as a working sound or image file. Unlike competitors who just wrap a model around encrypted files, PSM Encryptor weaves the sound or image models into the encrypted files, creating secure documents. Any file type can be turned into a key and optimised keys can also be generated. In addition, PSM Encryptor ships with its own video codec: you can encrypt videos which can then be decrypted in real-time as you watch them, with no noticeable loss of performance or quality. An integrated email engine is also provided. An entirely graphical freeware decoder can also be found on this site and on our own site. We are developing variants of PSM Encryptor for corporate use. We customise corporate versions free of charge. Please contact us for details.