TY - JOUR AU - Nugrahaeni, Ratna Astuti AU - R. Rumani M., R. Rumani M. AU - Nasution, Surya Michrandi PY - 2016 TI - IMPLEMENTATION OF CRYPTOGRAPHY AND STEGANOGRAPHY FOR TEXT ON COVER IMAGE USING AES AND F5 ALGORITHM JF - TEKTRIKA - Jurnal Penelitian dan Pengembangan Telekomunikasi, Kendali, Komputer, Elektrik, dan Elektronika; Vol 1 No 1 (2016) DO - 10.25124/tektrika.v1i1.248 KW - N2 - This journal explains about implementation that combine both cryptography and steganography method  for texton cover image to increase the security level. Text will be encrypted with AES algorithm, and then  it will be embedded to the cover image using F5 algorithm. The implemented AES algorithm has a good  performance, with Avalanche Effect value ranges from 0.43 – 0.59. The resulting image, or stego image, has  a very similar histogram with the original image, so there is no significant difference between the two of  them. However, the file size change about 1.25 – 3.25 times larger than theoriginal image. If noise or  disruption is given to stego image, the information can not be extracted. Keywords: cryptography, steganography, AES, F5 UR - //journals.telkomuniversity.ac.id/tektrika/article/view/248