Dual-chaotic system dynamic key and RSA jointed streaming media secret communication method
A system dynamic and secure communication technology, applied in transmission systems, digital transmission systems, secure communication devices, etc., can solve problems such as poor confidentiality, inability to use streaming media communication in the system, and potential safety hazards
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[0061] Embodiment 1: This embodiment describes in detail the streaming media secure communication method combined with the dynamic key of the dual chaotic system and RSA:
[0062] 1. RSA encryption algorithm and hyperchaotic system
[0063] 1.1 Principle of RSA Algorithm
[0064] The RSA algorithm is divided into two processes: key generation and encryption and decryption, which are as follows:
[0065] Step 1 Key generation:
[0066] 1) Randomly generate two large prime numbers p and q;
[0067] 2) Calculate n=p×q and Euler function Φ(n)=(p-1)(q-1);
[0068] 3) Select e that satisfies gcd(e,Ф(n))=1, where e is 0
[0069] 4) Calculate the d value that satisfies d×e≡1(mod,Ф(n)), and the decryption key is (d,n).
[0070] Step 2 Encryption and decryption process:
[0071] 1) Encryption operation: perform c=m on plaintext m e (mod n) operation to obtain the ciphertext c;
[0072] 2) Decryption operation: perform m=c on ...
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