SHA-384 is a truncated version of SHA-512 producing a 384-bit (96 hex character) hash. It offers a good balance of security and speed. This tool uses the browser's built-in Web Crypto API - your data never leaves your device.
SHA-384 Hash Generator is a high-assurance security utility for generating 384-bit message digests. This SHA384 calculator leverages the 64-bit internal architecture of the SHA-512 algorithm, providing superior collision resistance and immunity to length-extension attacks. As a trusted hash calculator used in NSA Suite B and modern TLS configurations, it is perfect for developers needing enterprise-grade cryptographic verification entirely within their browser.
SHA-384 was part of NSA Suite B (now CNSA) for protecting US government information up to TOP SECRET. It pairs naturally with the P-384 elliptic curve in TLS and is required by some compliance regimes for classified workloads.
SHA-384 uses the same 64-bit compression function as SHA-512 but with different initial hash values, and the final state is truncated to 384 bits. You cannot derive a SHA-384 digest by truncating a SHA-512 digest - the IV is different.
SHA-384 inherits SHA-512's 64-bit internal arithmetic, which is faster than SHA-256 on 64-bit CPUs for inputs over a few hundred bytes. It also gives 192-bit collision resistance vs SHA-256's 128-bit - useful when paired with P-384.
Yes - because the internal 512-bit state is truncated to 384 bits before output, an attacker cannot reconstruct the full state and continue the hash. SHA-256 and SHA-512 are vulnerable to length extension; SHA-384 (and SHA-224) are not.
Rely on this SHA-384 Hash Generator for your top-tier security requirements and experience the speed of a native-browser SHA384 calculator.