Description:FIELD OF THE INVENTION
The present invention relates to secure data transmission methods, specifically a system for securely transmitting data using audio file data and public key cryptography. This invention enhances the security of data transmission by embedding encrypted data within an audio file using steganographic techniques and verifying data integrity through a Message Authentication Code (MAC).
BACKGROUND OF THE INVENTION
The importance of communication security has increased with the growth of data transmission. Potential attackers may become aware of the traces left by traditional encryption techniques. We suggest a technique that combines public key cryptography and audio file system.
With the increasing reliance on digital communication, ensuring the security and privacy of transmitted data has become paramount. Traditional encryption methods such as RSA and AES provide robust security mechanisms but still leave encrypted data visible to potential attackers. The visibility of encrypted data makes it susceptible to interception and cryptanalysis. Conventional security measures, including digital signatures and hashing, provide integrity verification but do not eliminate the risk of detection and targeting of encrypted information.
To address these challenges, steganography has been explored as a means of concealing data within innocuous files, such as images, videos, or audio files. However, existing steganographic techniques often lack strong encryption measures, making the concealed data vulnerable to decryption if detected. The proposed invention aims to integrate public key cryptography with steganography within an audio file to provide an improved and secure method for data transmission.
SUMMARY OF THE INVENTION
This summary is provided to introduce a selection of concepts, in a simplified format, that are further described in the detailed description of the invention.
This summary is neither intended to identify key or essential inventive concepts of the invention and nor is it intended for determining the scope of the invention.
The present invention introduces a secure data transmission system that utilizes audio file data and public key cryptography to enhance data confidentiality and integrity. The system operates on both the sender’s and receiver’s sides in two stages. Initially, the sender encrypts the data using public key cryptography, ensuring that only the intended recipient can decrypt the information. To maintain the authenticity and integrity of the data, a Message Authentication Code (MAC) hash is generated and included with the encrypted data.
The encrypted data and MAC hash are then concealed within an audio file using steganographic techniques, making the file appear as an ordinary audio file to external observers. The audio file containing the hidden data is transmitted to the recipient, minimizing the risk of detection and interception. Upon receiving the audio file, the recipient employs decoding techniques to extract the encrypted data and MAC hash. The extracted encrypted data is decrypted using the recipient's private key, and the MAC hash is verified to ensure data integrity. If the MAC hash is valid, the original data is successfully retrieved and confirmed to be unaltered.
The secure data transmission system consists of several components that work together to provide a robust encryption and data concealment mechanism. The primary components involved include:
Sender’s Side Process
At the sender’s end, the process begins with the selection of data that needs to be securely transmitted. The data is first encrypted using public key cryptography, ensuring that only the intended recipient with the corresponding private key can decrypt the information. The encryption process generates an encrypted data block that is further processed to ensure its integrity.
To maintain data authenticity, a Message Authentication Code (MAC) hash is generated from the encrypted data. The MAC hash ensures that any alterations to the data during transmission can be detected upon receipt. Once the MAC hash is generated, it is appended to the encrypted data to form a single unit of secured data.
Next, the encrypted data along with the MAC hash is embedded into an audio file using steganographic techniques. The steganography process modifies the least significant bits (LSBs) or other suitable parameters of the audio file to encode the secured data without perceptible changes to the audio quality. As a result, the audio file remains functionally intact and does not arouse suspicion when intercepted.
The modified audio file containing the encrypted data and MAC hash is then transmitted to the recipient over a communication channel. Since the file appears as a normal audio file, potential attackers are unable to detect the presence of encrypted information within it.
Receiver’s Side Process
Upon receiving the audio file, the recipient extracts the concealed encrypted data and MAC hash using decoding techniques specific to the steganographic method employed. The extracted encrypted data is then decrypted using the recipient’s private key, converting it back into its original plaintext form.
To verify data integrity, the MAC hash is recalculated on the decrypted data and compared with the extracted MAC hash. If the two hashes match, the data is confirmed to be intact and unaltered, thereby ensuring its authenticity. In case of any discrepancies, the recipient is alerted to potential tampering or unauthorized modifications.
By integrating encryption, MAC verification, and steganographic embedding within an audio file, the proposed invention offers a highly secure method for data transmission. The dual-layered security approach minimizes the chances of data interception and decryption by unauthorized entities. The technique is adaptable to various communication platforms and ensures seamless, confidential data exchange.
By employing this method, the invention provides a two-tiered security mechanism that combines the strengths of cryptographic encryption and steganographic data concealment. Unlike conventional encryption methods that leave traces of encrypted data, this approach significantly reduces the risk of detection by embedding the encrypted information within an audio file. Additionally, the use of a MAC hash prevents unauthorized modifications and ensures that any tampering attempts can be detected.
This innovative technique is particularly useful for secure communications in sensitive applications, including government agencies, financial institutions, and private enterprises where confidentiality is crucial. The proposed system enhances security measures and effectively mitigates risks associated with data interception and unauthorized access.
To further clarify advantages and features of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof, which is illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. The invention will be described and explained with additional specificity and detail with the accompanying drawings.
Both the sender's and the receiver's sides of the system operate in two stages. To ensure that only the intended receiver can decrypt the data, the sender first encrypts it using public key cryptography. To confirm the integrity of the data, a Message Authentication Code (MAC) hash is generated. Steganography is then used to conceal the encrypted data and MAC hash inside an audio file, making it seem like a typical audio file. The recipient then receives the audio file. The recipient retrieves the encrypted material using decoding techniques then uses their private key to decode it. To confirm the legitimacy of the data, the MAC hash is examined. The data is verified to be intact and the original information is recovered if the MAC hash is accurate.
BRIEF DESCRIPTION OF THE DRAWINGS
The illustrated embodiments of the subject matter will be understood by reference to the drawings, wherein like parts are designated by like numerals throughout. The following description is intended only by way of example, and simply illustrates certain selected embodiments of devices, systems, and methods that are consistent with the subject matter as claimed herein, wherein:
FIGURE 1: SYSTEM ARCHITECTURE
The figures depict embodiments of the present subject matter for the purposes of illustration only. A person skilled in the art will easily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.
 
DETAILED DESCRIPTION OF THE INVENTION
The detailed description of various exemplary embodiments of the disclosure is described herein with reference to the accompanying drawings. It should be noted that the embodiments are described herein in such details as to clearly communicate the disclosure. However, the amount of details provided herein is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the scope of the present disclosure as defined by the appended claims.
It is also to be understood that various arrangements may be devised that, although not explicitly described or shown herein, embody the principles of the present disclosure. Moreover, all statements herein reciting principles, aspects, and embodiments of the present disclosure, as well as specific examples, are intended to encompass equivalents thereof.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a",” “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises,” “comprising,” “includes” and/or “including,” when used herein, specify the presence of stated features, integers, steps, operations, elements and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof.
It should also be noted that in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed concurrently or may sometimes be executed in the reverse order, depending upon the functionality/acts involved.
In addition, the descriptions of "first", "second", “third”, and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include at least one of the features, either explicitly or implicitly.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which example embodiments belong. It will be further understood that terms, e.g., those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The secure data transmission system consists of several components that work together to provide a robust encryption and data concealment mechanism. The primary components involved include:
Sender’s Side Process
At the sender’s end, the process begins with the selection of data that needs to be securely transmitted. The data is first encrypted using public key cryptography, ensuring that only the intended recipient with the corresponding private key can decrypt the information. The encryption process generates an encrypted data block that is further processed to ensure its integrity.
To maintain data authenticity, a Message Authentication Code (MAC) hash is generated from the encrypted data. The MAC hash ensures that any alterations to the data during transmission can be detected upon receipt. Once the MAC hash is generated, it is appended to the encrypted data to form a single unit of secured data.
Next, the encrypted data along with the MAC hash is embedded into an audio file using steganographic techniques. The steganography process modifies the least significant bits (LSBs) or other suitable parameters of the audio file to encode the secured data without perceptible changes to the audio quality. As a result, the audio file remains functionally intact and does not arouse suspicion when intercepted.
The modified audio file containing the encrypted data and MAC hash is then transmitted to the recipient over a communication channel. Since the file appears as a normal audio file, potential attackers are unable to detect the presence of encrypted information within it.
Receiver’s Side Process
Upon receiving the audio file, the recipient extracts the concealed encrypted data and MAC hash using decoding techniques specific to the steganographic method employed. The extracted encrypted data is then decrypted using the recipient’s private key, converting it back into its original plaintext form.
To verify data integrity, the MAC hash is recalculated on the decrypted data and compared with the extracted MAC hash. If the two hashes match, the data is confirmed to be intact and unaltered, thereby ensuring its authenticity. In case of any discrepancies, the recipient is alerted to potential tampering or unauthorized modifications.
The steganographic embedding process ensures that the modifications made to the audio file remain imperceptible to human listeners and standard audio processing tools. Various embedding techniques can be utilized, such as modifying phase components, spread spectrum techniques, or frequency masking methods, to further obscure the presence of concealed data. The selection of these techniques can be adjusted based on security requirements and the type of audio file used.
By integrating encryption, MAC verification, and steganographic embedding within an audio file, the proposed invention offers a highly secure method for data transmission. The dual-layered security approach minimizes the chances of data interception and decryption by unauthorized entities. The technique is adaptable to various communication platforms and ensures seamless, confidential data exchange.
By integrating encryption, MAC verification, and steganographic embedding within an audio file, the proposed invention offers a highly secure method for data transmission. The dual-layered security approach minimizes the chances of data interception and decryption by unauthorized entities. The technique is adaptable to various communication platforms and ensures seamless, confidential data exchange.
Both the sender's and the receiver's sides of the system operate in two stages. To ensure that only the intended receiver can decrypt the data, the sender first encrypts it using public key cryptography. To confirm the integrity of the data, a Message Authentication Code (MAC) hash is generated. Steganography is then used to conceal the encrypted data and MAC hash inside an audio file, making it seem like a typical audio file. The recipient then receives the audio file. The recipient retrieves the encrypted material using decoding techniques then uses their private key to decode it. To confirm the legitimacy of the data, the MAC hash is examined. The data is verified to be intact and the original information is recovered if the MAC hash is accurate.
The suggested method improves data security during transmission by introducing a novel combination of public key cryptography and audio file system. In contrast to conventional encryption techniques that could leave observable traces, this technology deftly embeds encrypted data into an audio file so that, to outside observers, it sounds like a typical, unaltered sound. A Message Authentication Code (MAC) is also included to guarantee the data's authenticity and integrity and guard against manipulation. By combining the strength of public key cryptography with the intrinsic inconspicuousness of audio files, this technique provides two layers of security, establishing a very private and secure channel for sending sensitive data. This creative method offers a strong solution for safe communication in the globe that is becoming more and more digital by drastically reducing the possibility of interception or illegal access. The suggested system protecting data as it is being transmitted is essential in today's digital environment. Even though they work well, traditional encryption techniques can leave traces that an adversary could find. To address this, public key cryptography in conjunction with audio-based steganography provides a safe means of safeguarding private information.
ADVANTAGES OF THE INVENTION
Effective algorithms are used by current data encryption systems such as RSA and AES to safeguard data, but the encrypted data is still accessible and detectable by attackers. These systems use digital signatures and hashing to ensure data integrity, but the encrypted data can still be targeted for interception. On the other hand the suggested method conceals the encrypted data inside audio recordings by public key encryption techniques. Because the data is so subtle, it is hard for attackers to find it. Using a Message Authentication Code (MAC) to guarantee data integrity gives an additional degree of security. All things considered, the suggested approach provides improved security, lowering the possibility of attacks and interception. 
, Claims:1. A secure data transmission system utilizing public key cryptography and audio file steganography to conceal encrypted data within an audio file; wherein the sender encrypts data using public key cryptography before embedding it into an audio file; wherein a Message Authentication Code (MAC) hash is generated and embedded alongside the encrypted data for integrity verification;
wherein steganographic techniques modify the least significant bits (LSBs) of the audio file to conceal the encrypted data.
2. The system as claimed in claim 1, wherein the recipient extracts the concealed encrypted data and MAC hash from the audio file using decoding techniques.
3. The system as claimed in claim 1, wherein the recipient decrypts the extracted encrypted data using their private key.
4. The system as claimed in claim 1, wherein the MAC hash is compared with a recalculated MAC hash to verify data integrity.
5. The system as claimed in claim 1, wherein the audio file remains perceptually unchanged after embedding the encrypted data.
6. The system as claimed in claim 1, wherein the system prevents detection of encrypted data by external entities.
7. The system as claimed in claim 1, wherein the integration of public key cryptography and steganography provides enhanced security for digital communication.
8. A method for secure data transmission comprising:
a. Encrypting data using public key cryptography to generate encrypted data;
b. Generating a Message Authentication Code (MAC) hash from the encrypted data;
c. Embedding the encrypted data and the MAC hash into an audio file using steganographic techniques;
d. Transmitting the audio file to a recipient; e. Extracting the encrypted data and MAC hash from the received audio file;
f. Decrypting the extracted encrypted data using the recipient’s private key; and
g. Verifying data integrity by comparing the extracted MAC hash with a recalculated MAC hash.
9. The method as claimed in claim 8, wherein the steganographic techniques modify the least significant bits (LSBs) of the audio file to conceal the encrypted data and MAC hash.