Question 1

Which hashes are supported?

Accepted Answer

SHA-256, SHA-512, SHA-1, and MD5 — all via WebCrypto. SHA-1 and MD5 are kept for verifying legacy checksums; do not use them for security-sensitive work.

Question 2

Is my input sent anywhere?

Accepted Answer

No. WebCrypto runs locally; there is no network round-trip for any utility on this page.

Question 3

What does the key-diff tool show?

Accepted Answer

It compares fingerprints, user IDs, subkey list, expiry dates, and any signature differences between two armored keys. Useful for spotting tampering or confirming a clean key rotation.

Question 4

Can I hash a file or only text?

Accepted Answer

Either. The tool has a paste box for text and a drop zone for files.

Question 5

What is the URL-encoding option for?

Accepted Answer

For sharing PGP messages or fingerprints in URL parameters. Standard percent-encoding turns special characters into %XX sequences so they survive web frameworks intact.

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