HAVAL192,4 Hash Tool
Other Hash Generator
MD2 MD4 MD5 SHA1 SHA224 SHA256 SHA384 SHA512/224 SHA512/256 SHA512 SHA3-224 SHA3-256 SHA3-384 SHA3-512 RIPEMD128 RIPEMD160 RIPEMD256 RIPEMD320 WHIRLPOOL TIGER128,3 TIGER160,3 TIGER192,3 TIGER128,4 TIGER160,4 TIGER192,4 SNEFRU SNEFRU256 GOST GOST-CRYPTO ADLER32 CRC32 CRC32B CRC32C FNV132 FNV1A32 FNV164 FNV1A64 JOAAT MURMUR3A MURMUR3C MURMUR3F XXH32 XXH64 XXH3 XXH128 HAVAL128,3 HAVAL160,3 HAVAL192,3 HAVAL224,3 HAVAL256,3 HAVAL128,4 HAVAL160,4 HAVAL192,4 HAVAL224,4 HAVAL256,4 HAVAL128,5 HAVAL160,5 HAVAL192,5 HAVAL224,5 HAVAL256,5The HAVAL-192/4 algorithm is a cryptographic hash function designed to produce a fixed-size output of 192 bits. It is part of the HAVAL family, which supports multiple output lengths and variable numbers of passes. The 192/4 variant specifically employs four passes over the input data to generate a hash digest, balancing speed and security for practical applications.
Input Processing
HAVAL-192/4 accepts input messages of arbitrary length. The algorithm begins by padding the message to ensure its length is congruent to 896 modulo 1024 bits, followed by appending a 128-bit representation of the original message length. This ensures proper alignment for subsequent processing.
Initialization
Eight 32-bit words are initialized with predefined constants. These words serve as the internal state of the hash function and are updated during each of the four processing passes. The initial values are derived to provide optimal diffusion and avalanche properties throughout the hashing process.
Processing Passes
The algorithm processes the message in 1024-bit blocks. Each block is divided into 32-bit words, which are manipulated using four non-linear Boolean functions across four passes. Each pass applies a distinct function combining the message words and the current state words, including operations such as AND, OR, XOR, and modular addition. Rotations and modular arithmetic ensure high sensitivity to input variations.
State Updates
After each pass, the internal state words are updated by combining the results of the non-linear functions with previous state values. The design ensures that every bit of the input affects multiple bits in the output, promoting uniform distribution of the hash values. The iterative process continues until all message blocks are processed.
Output Generation
Upon completing all four passes, the final state words are concatenated and transformed into a 192-bit hash value. The output is designed to resist preimage attacks, second preimage attacks, and collision attacks under current cryptographic assumptions. HAVAL-192/4 provides a compromise between computational efficiency and security robustness.
Algorithm Characteristics
HAVAL-192/4 features configurable passes, allowing trade-offs between speed and security. Its use of multiple non-linear functions and complex state updates ensures strong diffusion. The algorithm is suitable for digital signatures, message authentication, and integrity verification in computing environments where a medium-length hash is sufficient.