AV-S07
Bcrypt & Argon2
Hash passwords with bcrypt or Argon2id and verify a password against an existing hash.
● Runs on your device; nothing is uploadedHow to use it
- Under Hash a password, choose bcrypt or Argon2 and enter the Password.
- Set the Cost factor, or the Argon2 variant, memory, iterations and lanes.
- Press Hash password and copy the result.
- Under Verify a password, paste a hash and a password, then press Verify.
Limits
- bcrypt cost
- 4–15
- bcrypt password
- First 72 bytes used
- Argon2 memory
- 8–262,144 KiB (256 MiB)
- Argon2 iterations
- 1–10
- Argon2 parallelism
- 1–4 (verify accepts up to 16)
- Argon2 hash length
- 16–64 bytes
- Password
- 4,096 bytes
Features
- bcrypt output as $2b$; verifies $2a$, $2b$ and $2y$ hashes
- Argon2id, Argon2i and Argon2d in PHC string format
- Defaults to the OWASP Argon2id minimum: 19 MiB, 2 passes, 1 lane
- Random 16-byte salt
- Runs in a background worker, with Cancel and timing
For AI agents: avtools_bcrypt_argon2
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