The Proposed Development of Prototype with Secret Messages Model in Whatsapp Chat

Hamdani, Hamdani; Ismanto, Heru; Munir, Agus Qomaruddin; Rahmani, Budi; Syafrianto, Andri; Suprihanto, Didit; Septiarini, Anindita

doi:10.11591/ijece.v8i5.pp3841-3850

Cited by 3 publications

(3 citation statements)

References 31 publications

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“…These researches are generally using the concept of asymmetric key cryptography. Also, there are some methods to secure the IM without blockchain like using a backup server to guarantee the integrity of messages [29], increasing the security of IM applications using Honey Encryption [30], protecting group chats using Vigenère encryption [31], and a mobile app for encrypting messages before send and decrypting them after it received [32]. There is research to improve the X3DH protocol using blockchain for IoT [33].…”

Section: B Literature Reviewmentioning

confidence: 99%

Using Blockchain to Improve the Security Of The X3DH Key Exchange Protocol

Mousavi,

Chaharsooghi,

Montazer

2023

itrc

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First and most important step to making secure end-to-end encryption is key exchange. X3DH is one of the most used protocols to do that. It uses a trusted server to exchange keys. If the key exchange is secure then we have identification, authentication, integrity, non-repudiation, and confidentiality for messages. In X3DH, if the trusted server is compromised the entire end-to-end encrypted connection will be exposed. Transport Layer Security (TLS) is used for client-server communication. Therefore, the whole security is based on a certificate authority (CA) therefore there will be the single point of failure. In this paper, we proposed using blockchain as a trusted medium to exchange keys and identity authentication. The proposed method is based on the use of X3DH in instant messaging. This method improves the first step of the X3DH algorithm which includes authentication. This is the first time using blockchain directly to identify a user.

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Section: B Literature Reviewmentioning

confidence: 99%

Using Blockchain to Improve the Security Of The X3DH Key Exchange Protocol

Mousavi,

Chaharsooghi,

Montazer

2023

itrc

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“…The security of the modern text steganography method can be defined as its ability and strength to resist any attack to remove or destroy the hidden data [116,141]. It is achieved by increasing the level of algorithm complexity, such as random or non-sequence embedding positions [106,142], randomly selecting secret bits [143][144][145], and generating a strong stego key [116,121,[144][145][146][147][148]. As a result, using one or more of these complexity techniques makes the hidden data extremely difficult to extract.…”

Section: Securitymentioning

confidence: 99%

A Comparative Analysis of Arabic Text Steganography

et al. 2021

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Protecting sensitive information transmitted via public channels is a significant issue faced by governments, militaries, organizations, and individuals. Steganography protects the secret information by concealing it in a transferred object such as video, audio, image, text, network, or DNA. As text uses low bandwidth, it is commonly used by Internet users in their daily activities, resulting a vast amount of text messages sent daily as social media posts and documents. Accordingly, text is the ideal object to be used in steganography, since hiding a secret message in a text makes it difficult for the attacker to detect the hidden message among the massive text content on the Internet. Language’s characteristics are utilized in text steganography. Despite the richness of the Arabic language in linguistic characteristics, only a few studies have been conducted in Arabic text steganography. To draw further attention to Arabic text steganography prospects, this paper reviews the classifications of these methods from its inception. For analysis, this paper presents a comprehensive study based on the key evaluation criteria (i.e., capacity, invisibility, robustness, and security). It opens new areas for further research based on the trends in this field.

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“…Cryptographic methods are divided based on key-based and keyless [6]. Several conventional keyless cryptographic methods have implemented for improving data security such as Caesar ciphers [7], Vigenere ciphers [8], [9], Zigzag ciphers [10], and Playfair cipher [11]. Those methods are more complex and consume a significant amount of power when applied in the resource-constrained devices for the provision of secure communication [12].…”

Section: Introductionmentioning

confidence: 99%

Cryptography using Random Rc4 Stream Cipher on SMS for Android-Based Smartphones

Rifki¹,

Septiarini²,

Hatta³

2018

ijacsa

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Messages sent using the default Short Message Service (SMS) application have to pass the SMS Center (SMSC) to record the communication between the sender and recipient. Therefore, the message security is not guaranteed because it may read by irresponsible people. This research proposes the RC4 stream cipher method for security in sending SMS. However, RC4 has any limitation in the Key Scheduling Algorithm (KSA) and Pseudo Random Generation Algorithm (PRGA) phases. Therefore, this research developed RC4 with a random initial state to increase the randomness level of the keystream. This SMS cryptography method applied the processes of encryption against the sent SMS followed by decryption against the received SMS. The performance of the proposed method is evaluated based on the time of encryption and decryption as well as the average correlation value. Based on the time, it shows that the length of the SMS characters sent affects the time of encryption and decryption. Meanwhile, the best correlation value achieved 0.00482.

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The Proposed Development of Prototype with Secret Messages Model in Whatsapp Chat

Cited by 3 publications

References 31 publications

Using Blockchain to Improve the Security Of The X3DH Key Exchange Protocol

Using Blockchain to Improve the Security Of The X3DH Key Exchange Protocol

A Comparative Analysis of Arabic Text Steganography

Cryptography using Random Rc4 Stream Cipher on SMS for Android-Based Smartphones

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