CHACHA20_SALT
if (chacha20_setkey(&ctx, key, CHACHA20_KEYSIZE + CHACHA20_SALT))
if (len != CHACHA20_KEYSIZE + CHACHA20_SALT)
CHACHA20_SALT);
CHACHA20_SALT);
CHACHA20_KEYSIZE+CHACHA20_SALT, POLY1305_BLOCK_LEN, POLY1305_TAGLEN,