SHA-2 (Secure Hash Algorithm 2) is a set of cryptographic hash functions designed by the United States National Security Agency (NSA) and first published in 2001. SHA224 hashing is a method to convert arbitrary data into a fixed-size sequence of characters, which typically represents a checksum or fingerprint of the original data. For example, the string Hello, World! becomes 72a23dfa411ba6fde01dbfabf3b00a709c93ebf273dc29e2d8b261ff .
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2026