Password Encoders in Spring Security
Learn the contract spring security expects from PasswordEncoder interface, inbuilt implementations and DelegatingPasswordEncoder with examples.
Python File Hash: SHA-256 Checksums with hashlib Examples
Calculate a file hash in Python with hashlib.file_digest() or chunked reads, verify SHA-256 checksums, find duplicate files, and avoid MD5 for security.
Java File Checksum: MD5 and SHA-256 Hash Examples
Java file checksum examples for MD5 and SHA-256 with MessageDigest, streaming for large files, HexFormat, Guava, Commons Codec and verifying downloads.
Java Password Hashing: MD5, SHA, PBKDF2, bcrypt and Argon2
Java password hashing done right with PBKDF2, bcrypt, scrypt and Argon2id, OWASP parameters, salts, real timings, and why MD5 and SHA-256 fail.