نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه مهندسی برق، واحد بیضا، دانشگاه آزاد اسلامی، بیضا، ایران
2 دانشکده مهندسی برق دانشگاه علوم و فنون هوایی شهید ستاری
3 گروه مهندسی آب، واحد شیراز، دانشگاه آزاد اسلامی، شیراز، ایران
کلیدواژهها
موضوعات
عنوان مقاله English
نویسندگان English
This paper examines an audio signal encoding method based on the Grachberg-Saxton phase recovery algorithm in the fractional Fourier transform domain and presents a hybrid model for providing security and data hiding in information channels. This algorithm first encodes the original audio signal into an image format and encrypts it.
This algorithm first encodes the original audio signal into an image format and encrypts it. Subsequently, the G-S phase recovery algorithm in the fractional Fourier domain is used to extract the phase information of the audio signal. Accordingly, the original audio phase is replaced with a reference phase representing the hidden information to achieve information embedding.
This technology includes the ability to generate two different types of keys according to the encryption requirements, which increases the difficulty of decryption and ensures information security.
Finally, the encrypted image can be decrypted and restored to the original audio signal. This scheme realizes the effective embedding and extraction of hidden information in audio signals through the replacement and recovery of phase information. In this scheme, information security has been significantly increased by about 98%
کلیدواژهها English
