What’s on the Hashing vs Encryption poster
Hashing — one way against Encryption — two way, side by side.
- Hashing — one way: Cannot be reversed, by design
- Hashing — one way: Same input always gives the same output
- Hashing — one way: Fixed-length output
- Hashing — one way: For passwords, integrity, deduplication
- Hashing — one way: SHA-256 for data, Argon2 for passwords
- Encryption — two way: Reversible with the key
- Encryption — two way: Same input can give different output (IV)
- Encryption — two way: For data you must read again
- Encryption — two way: At rest and in transit
- Encryption — two way: AES-GCM, ChaCha20-Poly1305
- Encoding is neither. Base64 provides no security at all — it is a transport format th…
Encrypting a password instead of hashing it means one leaked key exposes every password at once.
Questions about the Hashing vs Encryption poster
- What’s on the Hashing vs Encryption poster?
- Hashing — one way against Encryption — two way, side by side. Hashing — one way: Cannot be reversed, by design; Hashing — one way: Same input always gives the same output; Hashing — one way: Fixed-length output; Hashing — one way: For passwords, integrity, deduplication; Hashing — one way: SHA-256 for data, Argon2 for passwords; Encryption — two way: Reversible with the key; Encryption — two way: Same input can give different output (IV); Encryption — two way: For data you must read again; Encryption — two way: At rest and in transit; Encryption — two way: AES-GCM, ChaCha20-Poly1305; Encoding is neither. Base64 provides no security at all — it is a transport format th…. Encrypting a password instead of hashing it means one leaked key exposes every password at once.
- Who is the Hashing vs Encryption poster for?
- Hashing vs Encryption belongs to the Computing section rather than to a school year, because computing is not something one grade owns. Anyone learning security can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Hashing vs Encryption poster?
- If you ever need the value back, you need encryption. If you only need to compare, hash it. A wall chart earns its place by being glanceable from where the work is happening, so Hashing vs Encryption belongs on the wall where that computing work actually happens, within glancing distance, rather than filed away.
- What other posters go with Hashing vs Encryption?
- Secrets, AuthN vs AuthZ and HTTPS & TLS sit alongside Hashing vs Encryption in the Computing section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.SecretsAuthN vs AuthZHTTPS & TLS
- Is the Hashing vs Encryption poster free to download and print?
- Yes. Hashing vs Encryption downloads as a free PDF with no account, no email and no watermark, like everything else in the Computing section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Hashing vs Encryption poster print at?
- Hashing vs Encryption is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Hashing vs Encryption loses nothing.Printing guide
Related posters
Charts that sit alongside Hashing vs Encryption on the same wall.
Browse every Computing poster, or start from the full catalogue.