Data storage encryption methods

Data storage encryption methods include symmetric encryption, asymmetric encryption and hash algorithm. Detailed introduction: 1. Symmetric encryption, commonly used symmetric encryption algorithms include DES, AES and Twofish; 2. Asymmetric encryption, commonly used asymmetric encryption algorithms include RSA, ECC and DSA; 3. Hash algorithm, commonly used hash algorithm Hash algorithms include SHA-1, SHA-256, MD5, etc.

# Data storage encryption methods mainly include symmetric encryption, asymmetric encryption and hash algorithms.

1. Symmetric encryption: Symmetric encryption means that the same key is used for encryption and decryption. In data storage encryption, commonly used symmetric encryption algorithms include DES, AES, Twofish, etc. The security of these algorithms depends on the confidentiality of the keys, so the management of the keys is very important.

2. Asymmetric encryption: Asymmetric encryption means that encryption and decryption use different keys, namely public key and private key. In data storage encryption, commonly used asymmetric encryption algorithms include RSA, ECC and DSA. The security of these algorithms depends on the difficulty of mathematical problems, such as large integer decomposition problems, discrete logarithm problems, etc.

3. Hash algorithm: The hash algorithm maps input data of any length into output data of fixed length, and is usually used for data integrity verification. In data storage encryption, commonly used hash algorithms include SHA-1, SHA-256, MD5, etc. The characteristics of these algorithms are that the output data is fixed and unique and can be calculated quickly, but it is difficult to find the reverse mapping.

In summary, data storage encryption methods include symmetric encryption, asymmetric encryption and hash algorithms. These methods can be used individually or in combination to increase data security.

The above is the detailed content of Data storage encryption methods. For more information, please follow other related articles on the PHP Chinese website!