Stegano is a basic Python Steganography module. Stegano implements two methods of hiding: using the red portion of a pixel to hide ASCII messages, and using the Least Significant Bit (LSB) technique. It is possible to use a more advanced LSB method based on integers sets. The sets (Sieve of Eratosthenes, Fermat, Carmichael numbers, etc.) are used to select the pixels used to hide the information.
GnuPG (the GNU Privacy Guard or GPG) is GNU’s tool for secure communication and data storage. It can be used to encrypt data and to create digital signatures. It includes an advanced key management facility and is compliant with the proposed OpenPGP Internet standard as described in RFC2440. As such, it is meant to be compatible with PGP from NAI, Inc. Because it does not use any patented algorithms, it can be used without any restrictions.
There is a memory corruption issue when processing a malformed RTP video stream in FaceTime that leads to a kernel panic due to a corrupted heap cookie or data abort. This bug can be reached if a user accepts a call from a malicious caller. This issue only affects FaceTime on iOS, it does not crash on a Mac.