Hawkynt

Argon2id

Password Hashing Competition winner (2015) - hybrid variant combining Argon2d and Argon2i. RECOMMENDED for general password hashing. First half uses data-independent addressing (Argon2i), second half uses data-dependent (Argon2d), providing both side-channel resistance and GPU attack resistance.

Properties

Property	Value
Category	Key Derivation Functions
Sub-category	Memory-Hard Password Hashing
Security status	🛡️ Secure
Complexity	Advanced
Inventor	Alex Biryukov, Daniel Dinu, Dmitry Khovratovich
Year	2015
Origin	🌐 International
Source	algorithms/kdf/argon2.js

Parameters

Parameter	Supported values
Output sizes	4 bytes (32 bits) to 1024 bytes (8192 bits)

Capabilities

Flag	Value
SaltRequired	Yes

Security

Status: 🛡️ Secure

No vulnerabilities are recorded for this implementation.

Documentation

• RFC 9106 - Argon2 Memory-Hard Function for Password Hashing
• Argon2 Specification
• Password Hashing Competition

References

• PHC Winner Argon2 Reference Implementation
• Botan Argon2 Implementation
• NIST - Password-Based Key Derivation

Test vectors

3 vectors ship with this algorithm and run in the test suite. Byte values are hexadecimal.

Vector 1 — Botan Official Test Vector - Argon2id (M=32, T=3, P=4)

Field	Value
password	0101010101010101010101010101010101010101010101010101010101010101
salt	02020202020202020202020202020202
secret	0303030303030303
ad	040404040404040404040404
M	32
T	3
P	4
outputSize	32
input	0101010101010101010101010101010101010101010101010101010101010101
expected	0d640df58d78766c08c037a34a8b53c9d01ef0452d75b65eb52520e96b01e659

Vector 2 — Botan Official Test Vector - Argon2id (M=64, T=3, P=4)

Field	Value
password	0101010101010101010101010101010101010101010101010101010101010101
salt	02020202020202020202020202020202
secret	0303030303030303
ad	040404040404040404040404
M	64
T	3
P	4
outputSize	32
input	0101010101010101010101010101010101010101010101010101010101010101
expected	4275ee5ad887fe3270e82f01e97db8af3cf63fc7f2102bfea84b305f416a4544

Vector 3 — Botan Official Test Vector - Argon2id (M=128, T=3, P=4)

Field	Value
password	0101010101010101010101010101010101010101010101010101010101010101
salt	02020202020202020202020202020202
secret	0303030303030303
ad	040404040404040404040404
M	128
T	3
P	4
outputSize	32
input	0101010101010101010101010101010101010101010101010101010101010101
expected	8ec72f253bd35d55c3e49c587c77665c9c7fcff26cb3cabe179039b7c4281a48

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