Clarify the usage of decryption API.

8 years ago · 70ac6ce2ee
1 changed files with 2 additions and 0 deletions
--- a/src/zcash/NoteEncryption.cpp
+++ b/src/zcash/NoteEncryption.cpp
@ -121,6 +121,8 @@ typename NoteDecryption<MLEN>::Plaintext NoteDecryption<MLEN>::decrypt

    NoteDecryption<MLEN>::Plaintext plaintext;

+    // Message length is always NOTEENCRYPTION_AUTH_BYTES less than
+    // the ciphertext length.
    if (crypto_aead_chacha20poly1305_ietf_decrypt(plaintext.begin(), NULL,
                                             NULL,
                                             ciphertext.begin(), NoteDecryption<MLEN>::CLEN,