ParallelHash256 Generator - High-Security Parallel Tree Hash
Generate ParallelHash256 - high-security parallelizable tree hash with 256-bit security per NIST SP 800-185.
About
ParallelHash256 is a high-security parallelizable hash function defined in NIST SP 800-185 with 256-bit security, using tree hashing for parallel processing with configurable block size.
Specifications
Output SizeVariable
StandardNIST SP 800-185
Standard Year2016
Origin Keccak submission to NIST SHA-3 competition
Origin Year 2008
Use Cases
—High-security large file hashing
—Distributed integrity verification
—Big data authentication
—Parallel hash pipelines
—NIST-compliant large-scale hashing
Frequently Asked Questions
ParallelHash256 provides 256-bit security versus 128-bit. Use it for high-security large file hashing, big data integrity in distributed systems, or when maximum security is required alongside parallel processing capabilities.
The default block size of 8 (8*128=1024 bytes for ParallelHash256) is suitable for most applications. Smaller blocks increase parallelism but add overhead. Larger blocks reduce overhead but decrease parallelization. Adjust based on your data size and hardware.
Both support parallel tree hashing. BLAKE3 is generally faster and more widely implemented. ParallelHash256 is part of the NIST SP 800-185 standard. Choose BLAKE3 for performance and modern applications; ParallelHash256 for NIST compliance.