Convertly PASSWORD Blog
15 articles on password security, cryptography, hashing and NIST recommendations.
- Fundamentals · 6 min read
What is a strong password?
A strong password in 2026 has at least 12 characters, mixes 4 character types and reaches 80 bits of entropy. Here are the precise criteria according to NIST and security experts.
Read article - Fundamentals · 7 min read
How long does it take to crack a password?
With an RTX 4090, an 8-character password falls in 4 hours. Complete tables by length, charset and hardware used.
Read article - Guide · 5 min read
How to create an unbreakable password
Unbreakable does not mean uncrackable forever. Here are the 5 verifiable rules that make a password practically impossible to crack in 2026.
Read article - Fundamentals · 6 min read
Password vs passphrase: which to choose?
A short complex password or a long memorable phrase? The choice depends on context. Quantified comparison and recommendations.
Read article - Cryptography · 8 min read
Password hashing: MD5, bcrypt, Argon2 explained
MD5 is broken, SHA-256 is too fast, bcrypt is aging, Argon2id wins. Overview of password hashing algorithms in 2026.
Read article - Recommendations · 7 min read
Password recommendations: what the standards say
Security standards define precise requirements on password length and complexity. Synthesis of key recommendations.
Read article - Recommendations · 5 min read
Password recommendations: complete guide
Security authorities publish precise rules for passwords in enterprise environments. Synthesis of best practices.
Read article - Cryptography · 6 min read
MD5 vs SHA-1 vs SHA-256: differences and uses
MD5 has been broken since 2004, SHA-1 since 2017, SHA-256 remains solid for integrity. Breakdown of differences and when to use which.
Read article - Developer · 5 min read
What is a UUID used for? Definition and use cases
A UUID is a 128-bit unique identifier standardized by RFC 4122. Here is what it is concretely used for in 2026 and when to use it.
Read article - Developer · 5 min read
UUID v1, v4, v7: which version to choose?
UUID v4 remains the default, but UUID v7 (RFC 9562, 2024) is replacing it for SQL databases. Comparison and selection criteria.
Read article - Cryptography · 4 min read
What is a salt in cryptography?
A salt is random data added to a password before hashing. It prevents rainbow table attacks and masks identical passwords.
Read article - Developer · 7 min read
How to store a password in a database
Storing a password in plaintext is a serious mistake. Here is the complete pattern (Argon2id + salt + OWASP parameters) with code examples.
Read article - Guide · 5 min read
Is my online password generator secure?
Not all online generators are equal. Here are the 5 criteria to verify that a generator does not store or send your passwords.
Read article - Guide · 5 min read
How to check if my password has been compromised
More than 12 billion passwords have leaked since 2015. Here is how to safely check if one of yours has been compromised.
Read article - Guide · 6 min read
Best free password generator in English
Which free password generator to choose in 2026? Honest comparison with 5 criteria and our review.
Read article