MY NIP 44- implementation passes all 81 officials test vectors ( 35 conversations keys , 25 padding case ,10 full except / decrypt , 13 malformed payloads correctly rejected ) plus the RFC 8439 ChaCha20 vector . Then full end to end NIP-17 test : / Bob decrypted Alice messages with the sender verified , / Alice’s self copy works / an eavesdropper with different key blocked / a spoofed message rejected