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Babagan SHA-2

SHA-2 (Secure Hash Algorithm 2) is a set of cryptographic hash functions designed by the United States National Security Agency (NSA). It consists of six hash functions with digests (hash values) that range from 224 to 512 bits: SHA-224, SHA-256, SHA-384, SHA-512, SHA-512/224, and SHA-512/256.

SHA-2 akeh digunakake ing macem-macem aplikasi lan protokol keamanan, kalebu TLS, SSL, PGP, SSH, lan cryptocurrencies kaya Bitcoin. Iki dianggep aman marang kabeh serangan sing dikenal, lan ora ana kelemahan sing ditemokake ing fungsi SHA-2.

Note:SHA-2 dianggep aman kanggo aplikasi modern. Nanging, dianjurake kanggo pindhah menyang SHA-3 kanggo aplikasi sing mbutuhake tingkat keamanan paling dhuwur, utamane nglawan ancaman komputasi kuantum.

Kasus Penggunaan Umum

  • Panyimpenan sandhi sing aman
  • Tandha digital
  • Priksa integritas file
  • Blockchain lan cryptocurrency
  • Protokol komunikasi sing aman

Rincian Teknis

Panjang Hash: 224, 256, 384, 512 bit
Ukuran Blok: 512 bits (SHA-224, SHA-256) or 1024 bits (others)
Status Keamanan: Secure
Taun dikembangake: 2001
Developer: NSA (U.S.)

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