Cryptography with DNA binary strands

Biotechnological methods can be used for cryptography. Here two different cryptographic approaches based on DNA binary strands are shown. The rst approach shows how DNA binary strands can be used for steganography to provide rapid encryption and decryption. It is shown that DNA steganogra- phy based on DNA binary strands is secure under the assumption that an interceptor has the same technological capabilities as sender and receiver of encrypted messages. The second approach shown here is based on steganography and a method of graphical subtraction of binary gel-images. It can be used to constitute a molecular checksum and can be combined with the rst approach to support encryption.

full article at http://www.cs.mun.ca/~banzhaf/papers/DNA_Crypt_final.pdf

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