What are the different hashing algorithms and their uses?
There are several hashing algorithms, including MD5, SHA-1, SHA-256, and bcrypt. MD5 is often used for checksums, while SHA-256 is popular in blockchain technology. Bcrypt is used for securely hashing passwords.
Can you explain the differences between MD5 and SHA-256?
MD5 produces a 128-bit hash value and is faster but less secure, making it vulnerable to collisions. SHA-256, on the other hand, produces a 256-bit hash and is more secure, making it suitable for cryptographic applications.
What are the vulnerabilities of using MD5?
MD5 is susceptible to collision attacks, where two different inputs produce the same hash. This can lead to security breaches, especially in digital signatures and certificates.
Which hashing algorithm should I use for password storage?
For password storage, it's best to use bcrypt, Argon2, or PBKDF2, as they are designed to be slow and resistant to brute-force attacks.
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