Symmetric algorithms are very efficient and work with a single key for both encryption and decryption calculations.
对称算法非常有效，并且可以与用于加密和解密计算的单一密钥一起使用。
Symmetric algorithms have faster performance than asymmetric algorithms, but passing the secret key securely between participants poses a distribution problem.
对称算法的性能比非对称算法的性能快，但是在参与者之间安全地传递秘钥会引起分发问题。
A while ago an AD hoc group of computer scientists and cryptographers contributed to a paper that recommended a key of at least90bits for symmetric algorithms used in commercial security.
不久前，计算机科学家和密码学家专门小组发表了一篇论文，建议用于商业安全的对称算法至少要用90位的钥匙。
This class can be flexibly used in VB to implement such cryptography algorithms as Symmetric Key, Public Key and Digital Signature.
使用该类可方便地在VB应用程序中实现对称密钥、公开密钥和数字签名算法，并且不受中英文编码方式的限制。
A while ago, an AD hoc group of computer scientists and cryptographers contributed to a paper that recommended a key of at least 90 bits for symmetric algorithms used in commercial security.
不久前，计算机科学家和密码学家专门小组发表了一篇论文，建议用于商业安全的对称算法至少要用90位的钥匙。
Determines the set of valid key sizes for the symmetric cryptographic algorithms.
确定对称加密算法的有效密钥大小设置。
Symmetric algorithms require the creation of a key and an initialization vector (IV) that must be kept secret from anyone who should not decrypt your data.
对称演算法需要建立金钥和初始化向量 （IV），而这两者必须对任何不应解密您资料的人保密。
In chapter 2, the basic algorithms and protocol of applied cryptography are introduced here, including symmetric-key cryptography, public-key cryptography, hash functions and key management protocols.
第二章介绍基本的应用密码学算法和密码协议，包括对称加密算法、非对称加密算法、散列函数、数字签名技术和密钥管理协议。
In chapter 2, the basic algorithms and protocol of applied cryptography are introduced here, including symmetric-key cryptography, public-key cryptography, hash functions and key management protocols.
第二章介绍基本的应用密码学算法和密码协议，包括对称加密算法、非对称加密算法、散列函数、数字签名技术和密钥管理协议。
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