27 lines
707 B
Rust
27 lines
707 B
Rust
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use ghash::{
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universal_hash::{KeyInit, UniversalHash},
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GHash,
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};
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use hex_literal::hex;
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//
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// Test vectors for GHASH from RFC 8452 Appendix A
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// <https://tools.ietf.org/html/rfc8452#appendix-A>
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//
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const H: [u8; 16] = hex!("25629347589242761d31f826ba4b757b");
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const X_1: [u8; 16] = hex!("4f4f95668c83dfb6401762bb2d01a262");
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const X_2: [u8; 16] = hex!("d1a24ddd2721d006bbe45f20d3c9f362");
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/// GHASH(H, X_1, X_2)
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const GHASH_RESULT: [u8; 16] = hex!("bd9b3997046731fb96251b91f9c99d7a");
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#[test]
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fn ghash_test_vector() {
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let mut ghash = GHash::new(&H.into());
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ghash.update(&[X_1.into(), X_2.into()]);
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let result = ghash.finalize();
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assert_eq!(&GHASH_RESULT[..], result.as_slice());
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}
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