In 3DES, three different keys can be used for enhancing the security. ( )
举一反三
- Which of the following statements are true？ （） A: RC4 is a stream cipher B: Stream ciphers require padding C: AES is a block cipher D: DES and 3DES are stream ciphers E: AES is a stream cipher F: AES， DES， and 3DES can be used as HMAC algorithms
- 常用对称密码算法有（ ）等。 A: DES、3DES、AES B: DES、3DES、RSA C: DES、RSA、AES D: RSA、3DES、AES
- A．MD5和3DESB．MD5和SHA1C．DES和SHA1D．DES和3DES A: MD5和3DES B: MD5和SHA1 C: DES和SHA1 D: DES和3DES
- Which materials can be used for its different parts?
- Which kind of security is more complicated A: security used to send credit card data B: security used in Webs C: security used within the company