Which of the following choices is true about cryptography?
A. Algorithm is not the secret, key is the secret.
B. Symmetric-key algorithms are a class of algorithms for cryptography that use the different cryptographic keys for both encryptions of plaintext and decryption of ciphertext.
C. Secure Sockets Layer (SSL) uses the asymmetric encryption both (public/private key pair) to deliver the shared session key and to achieve a communication way.
D. Public-key cryptography, also known as asymmetric cryptography, the public key is for decrypting, and the private key is for encrypting.
Answer:C
Which of the following choices is true about cryptography?
A. Algorithm is not the secret, key is the secret. B. Symmetric-key algorithms are a class of algorithms for cryptography that use the different cryptographic keys for both encryptions of plaintext and decryption of ciphertext. C. Secure Sockets Layer (SSL) uses the asymmetric encryption both (public/private key pair) to deliver the shared session key and to achieve a communication way. D. Public-key cryptography, also known as asymmetric cryptography, the public key is for decrypting, and the private key is for encrypting.