Tag: passwords — Code Glossary

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Most referenced — #passwords

password_hash() — Native Bcrypt (PHP 5.5) 1 Argon2 Password Hashing 1 password_hash() 1 Password Peppering 1 Salted Hashing 1 Rainbow Table 1

Key Derivation Functions 3 password_hash() — Native Bcrypt (PHP 5.5) 1 password_verify() 1

password_hash() — Native Bcrypt (PHP 5.5) 252password_verify() 136Argon2 Password Hashing 114Key Derivation Functions 111bcrypt 109Rainbow Table 104password_hash() 99 Weak Password Hash 90

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password_hash() — Native Bcrypt (PHP 5.5) PHP 5.5+

PHP 5.5 added password_hash() and password_verify() — the only correct way to hash and verify passwords. Never use MD5, SHA1, or unsalted hashes.

6mo ago PHP beginner

Weak Password Hash PHP 5.5+ 🧠 1

Using MD5, SHA-1, or SHA-256 to hash passwords — fast algorithms designed for data integrity, not authentication, crackable in seconds with a GPU.

6mo ago Security beginner

Argon2 Password Hashing PHP 7.2+ 🧠 8

The Password Hashing Competition winner (2015) — a memory-hard algorithm that resists GPU and ASIC brute-force attacks better than bcrypt.

OWASP A2:2021

6mo ago Security intermediate

Key Derivation Functions PHP 5.5+ 🧠 6

KDFs (PBKDF2, bcrypt, scrypt, Argon2) derive a cryptographic key from a password by being intentionally slow — making brute-force attacks computationally infeasible.

6mo ago Cryptography advanced

Password Peppering PHP 5.5+

A secret server-side value mixed into passwords before hashing — database theft alone is insufficient; the pepper must also be compromised.

OWASP A2:2021

6mo ago Security intermediate

password_hash() PHP 5.5+ 🧠 4

PHP's built-in function for securely hashing passwords using bcrypt or Argon2 with automatic salting.

6mo ago PHP beginner

password_verify() PHP 5.5+ 🧠 4

Checks a plaintext password against a bcrypt/Argon2 hash produced by password_hash() — the correct way to validate passwords.

6mo ago PHP beginner

Rainbow Table PHP 5.5+

A precomputed lookup table mapping hash values back to their original inputs — used to crack unsalted password hashes.

6mo ago General intermediate

Salted Hashing PHP 5.5+ 🧠 1

Prepending or appending a unique random value (salt) to each password before hashing, neutralising precomputed rainbow table attacks.

CWE-759 OWASP A2:2021

6mo ago Security beginner

bcrypt PHP 5.5+ 🧠 6

A deliberately slow password hashing algorithm designed to resist brute-force attacks by tunable computational cost.

CWE-327 OWASP A2:2021

6mo ago Security intermediate