Interface: Argon2Params

Tuning parameters for the Argon2id hashing algorithm. Higher settings increase resistance to brute-force attacks but also raise CPU/RAM costs.

Fields:

memorySize: Memory cost in KiB. Default 4096 (4 MiB). Increase to 8192+ for high-security apps.
passes: Number of iterations/time cost. Default 3. Raising this linearly increases hashing time.
parallelism: Thread count. Default 1. Increase on multi-core servers; keep ≤ available cores.
tagLength: Output hash length in bytes. Default 32 (256 bits). Use 32 or 64 for most cases.

⚠️ Security:

Memory cost is the strongest defense against GPU attacks; use the highest value your infra tolerates.
Never drop below 4096 KiB / 3 passes / 1 parallelism / 32-byte tag.
Changing parameters requires rehashing existing passwords (see needsRehash).

Performance:

4096 KiB with 3 passes hashes in ~50 ms on typical servers; 8192 KiB doubles that.
High parallelism increases RAM usage proportionally.

Examples

const params: Argon2Params = { memorySize: 4096, passes: 3, parallelism: 1, tagLength: 32 }

const params: Argon2Params = { memorySize: 8192, passes: 4, parallelism: 1, tagLength: 32 }

memorySize: number;

parallelism: number;

passes: number;

tagLength: number;