DNA-based cryptography.

摘要: Recent research has considered DNA as a medium for ultra-scale computation and ultra-compact information storage. One potential key application is DNA-based, molecular cryptography systems. We present some procedures DNA-based based on one-time-pads that are in principle unbreakable. Practical applications of cryptographic systems limited conventional electronic media by the size one-time-pad; however provides much more compact storage medium, an extremely small amount suffices even huge one-time-pads. detail two one-time-pad encryption schemes: (i) substitution method using libraries distinct pads, each which defines specific, randomly generated, pair-wise mapping; (ii) XOR scheme utilizing indexed, random strings. These methods can be applied either natural or artificial encoding binary data. In latter case, we also novel use chip-based micro-array technology 2D data input output. Finally, examine class steganography systems, secretly tag then hide it within collections other DNA. consider limitations these steganographic techniques, proving theory message hidden with such recovered adversary. discuss various modified appear to have improved security.