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Hash Based Certification

Definition

Hash based certification uses cryptographic hash functions to verify data integrity and authenticity. This method involves generating a fixed-size hash value from a piece of data, which serves as a unique digital fingerprint. Any alteration to the original data results in a different hash, thereby invalidating the certification. It provides a highly efficient means of confirming that information has not been tampered with since its initial hashing. This technique is fundamental to blockchain technology and digital signatures.