Hawkynt

SHA-224

SHA-224 is a truncated version of SHA-256 producing a 224-bit digest. It is part of the SHA-2 family with identical security properties to SHA-256 but with shorter output.

Properties

Property	Value
Category	Hash Functions
Sub-category	SHA-2 Family
Security status	🛡️ Secure
Complexity	Intermediate
Inventor	NIST
Year	2004
Origin	🇺🇸 United States
Source	algorithms/hash/sha256.js

Parameters

Parameter	Supported values
Output sizes	28 bytes (224 bits)

Security

Status: 🛡️ Secure

No vulnerabilities are recorded for this implementation.

Documentation

• NIST FIPS 180-4: Secure Hash Standard
• RFC 6234: US Secure Hash Algorithms
• Wikipedia: SHA-2

References

• OpenSSL Implementation
• NIST CAVP Test Vectors

Test vectors

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

Vector 1 — NIST Test Vector - Empty String

Field	Value
input	(empty)
expected	d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f

Vector 2 — NIST Test Vector - ‘abc’

Field	Value
input	616263
expected	23097d223405d8228642a477bda255b32aadbce4bda0b3f7e36c9da7

Vector 3 — NIST Test Vector - Alphabet

Field	Value
input	6162636465666768696a6b6c6d6e6f707172737475767778797a
expected	45a5f72c39c5cff2522eb3429799e49e5f44b356ef926bcf390dccc2

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