This online tool allows you to generate the hash sha3-384 of any string.
SHA3-384 length is 96 characters
Hash available
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What is SHA3-384?
SHA3-384 is a member of the SHA-3 cryptographic hash family, standardized by NIST as a robust alternative to the SHA-2 family. Based on the Keccak algorithm, it employs a unique "sponge construction" design. It produces a 384-bit hash digest and is engineered for high-security applications that require a balance between collision resistance and efficiency, serving as a powerful successor to SHA-384 (SHA-2).
How does SHA3-384 hash work?
SHA3-384 follows the sponge construction model, which processes data through two distinct stages:
- Absorbing Phase: The input message is padded and XORed into the internal state of the algorithm. This state, which is quite large, undergoes iterative permutations using the Keccak-f[1600] function to mix the bits thoroughly.
- Squeezing Phase: Once the input is fully absorbed, the algorithm "squeezes" the current state to extract the final 384-bit output.
Key Characteristics
- Security Resilience: By using the Keccak sponge construction, SHA3-384 is naturally immune to length-extension attacks, which were a common concern for the older Merkle–Damgård based algorithms.
- Cryptographic Agility: SHA3-384 offers a security strength of 192 bits against collision attacks, making it suitable for high-assurance systems, including digital signatures and sensitive data verification.
- Hardware Efficiency: While SHA-2 variants often dominate in pure software speed on common CPUs, SHA-3 variants are highly efficient when implemented in specialized hardware (ASICs/FPGAs), where the permutation logic can be parallelized.
Comparison: SHA3-384 vs. SHA-384 (SHA-2 Family)
- Architectural Diversity: The most important difference is the underlying design. SHA-2 (SHA-384) uses the Merkle–Damgård construction, while SHA-3 (SHA3-384) uses the sponge construction. Using SHA3-384 provides "cryptographic diversity," meaning that if a fundamental vulnerability were discovered in the Merkle–Damgård structure, systems using SHA-3 would remain unaffected.
- Performance: In standard software-based computing, SHA-2 variants (like SHA-512/384) are generally faster. SHA3-384 is often selected for scenarios where security architectural diversity is valued higher than pure cycles-per-byte performance, or where the target environment includes dedicated security hardware.
SHA3-384 represents a modern, high-security standard, providing a reliable and structurally distinct option for protecting data integrity.
