nx_chacha20_poly1305_test.nx

nx_chacha20_poly1305_test.nx -- RFC 8439 §2.8.2 AEAD KAT. Sunscreen vector (the canonical AEAD test vector): Plaintext (114 bytes ASCII): "Ladies and Gentlemen of the class of '99: If I could offer you only one tip for the future, sunscreen would be it." AAD (12 bytes): 50 51 52 53 c0 c1 c2 c3 c4 c5 c6 c7 Key (32 bytes): 80..9f sequential Nonce (12 bytes): 07 00 00 00 40 41 42 43 44 45 46 47 Expected ciphertext first 32: d3 1a 8d 34 64 8e 60 db 7b 86 af bc 53 ef 7e c2 a4 ad ed 51 29 6e 08 fe a9 e2 b5 a7 36 ee 62 d6 Expected tag: 1a e1 0b 59 4f 09 e2 6a 7e 90 2e cb d0 60 06 91 Also exercises tamper detection (single-bit flip in tag and in ciphertext both reject) and round-trip (decrypt restores PT). expect_exit: 0 license_tier: ORIGINAL