What is the difference between encryption and hashing in SQL?
An example of an AI chatbot conversation about encryption and hashing in SQL.
What is the difference between encryption and hashing in SQL?
Encryption is a reversible process that transforms data into a secure format, while hashing is a one-way function that generates a fixed-size string from input data.
Can you give me examples of when to use each?
Use encryption when you need to protect sensitive data that may need to be retrieved later, like passwords or credit card numbers. Use hashing for data integrity checks, like storing passwords securely.
Are there any specific SQL functions for encryption and hashing?
Yes, SQL Server has functions like ENCRYPTBYKEY for encryption and HASHBYTES for hashing. MySQL has AES_ENCRYPT for encryption and SHA1 for hashing.
What are the security implications of using each?
Encryption requires secure key management to protect the keys, while hashing should use a strong algorithm to prevent collisions and attacks.
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