常见的图片加密算法 (Common Image Encryption Algorithms) 对称加密算法 (Symmetric Encryption Algorithms) 对称加密算法使用相同的密钥进行加密和解密,常见的算法包括: AES(高级加密标准):AES是目前最广泛使用的对称加密算法,具有高效性和安全性。 DES(数据加密标准):虽然DES曾经被广泛使用,但由于其密钥长度较短,现已...
To provide security in image application, encryption is required. In this paper, we analyze AES algorithm and various security measures used for image encryption in AES algorithm. As cryptography helps in hiding the sensitive information or its transmission over an insecure network. Preventing any ...
// AESdemo public class AESdemo extends Activity { boolean encryptionIsOn = true; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_aesdemo); // needs <uses-permission android:name="android.permission.WRITE_EXTERNAL_...
Advanced Encryption Standard Cryptography - AES Structure Cryptography - AES Transformation Function Cryptography - Substitute Bytes Transformation Cryptography - ShiftRows Transformation Cryptography - MixColumns Transformation Cryptography - AddRoundKey Transformation Cryptography - AES Key Expansion Algorithm Cryptogr...
To encrypt an RBD image, it needs to be formatted to one of the supported encryption formats. The format operation persists encryption metadata to the image. The encryption metadata usually includes information such as the encryption format and version, cipher algorithm and mode specification, as ...
To enhance the security of image data transmission, and address the weaknesses of existing image encryption schemes based on chaotic systems, particularly concerning resistance to differential attacks and the unstable performance of chaotic systems, this
Image encryption algorithm can efficiently hide the image information, but, the cipher image in the transmission process may be tampered. To verify that the received image is sent by the correct sender and has not been tampered, authentication with digital signature (Xuan & Hong, 2020) is an ...
For the initial value x0∈ [0, 1], g(xi,β) always falls in the range of [0,1], 1-DSP-based image encryption This section presents a digital image encryption scheme using the 1DSP chaotic map (1DSP-IE). We set the initial values of 1DSP as the secret key and use it to add...
A multi-image encryption scheme based on the fractional-order hyperchaotic system is designed in this paper. The chaotic characteristics of this system are analyzed by the phase diagram, Lyapunov exponent and bifurcation diagram. According to the analyse
Image encryption has become the essential way to secure image information with the high frequency of multimedia information exchange on the Internet. In this paper, an effective chaotic color/grayscale image encryption algorithm is proposed. The algorithm uses a hybrid 2D composite chaotic map combined...