Comments refinement
* - OTR - https://otr.cypherpunks.ca/Protocol-v3-4.1.1.html;
* - ED25519 signature - https://ed25519.cr.yp.to/.
*
- * It's recommended to read the paper that describe Secure Comparator formally - https://eprint.iacr.org/2015/1180.pdf.
+ * It's recommended to read the paper that describes Secure Comparator formally - https://eprint.iacr.org/2015/1180.pdf.
*
* There are some dangerous situations when one of the communicating peers is not fair and presents
* forged secret or some of intermediate parameters. These may cause security flaws. See original paper
