Hybrid Reversible Data Hiding in Encrypted Satellite Images Using Fluctuation Modification Extraction and Reed-Solomon Code Embedding

Comparative study on satellite based image encryption methods: a survey

“…There may exist some outlier nodes that are needed to identify and task to be handed over by another high computational node by using proper job trackers or outlier detectors. Wibisono et al [23] proposed encryption of satellite images of size M×N using an encryption key by applying exclusive-or (XOR) to get ciphertext. Similarly, decryption is used to get the original image back.…”

“…The advanced encryption standard (AES) algorithm is a symmetric encryption algorithm using keys of 128, 192 and 256 bits for AES-128 [23], AES-192, and AES-256 [51] block cipher respectively. Input plaintext data is 128 bits (16 Bytes) represented as a 4×4 column-major matrix.…”

“…Consider p to be an 8-bit cover color satellite image of size M×N and each pixel of the image represented as p i,j located at (𝑖, 𝑗) location. Then ciphertext [23] is given by:…”

“…In the asymmetric approach, two keys: the public key for encryption and private key for decryption are used [16]. Many encryption algorithms such as AES [17]- [19], DES [20], 3-DES [21], Combination of AES, DES, 3-DES algorithm [22], exclusive-or (XOR) keys [23], homomorphic encryption [24], advanced encryption standard-counter (AES-CTR) [25], encryption using deep learning (DL) [26], error detection using hamming code [27] and chaotic encryption [28]- [37] are used to encrypt satellite images. In some cases, combination of two or more encryption algorithms provides more efficient encryption results.…”