Ecclesiastical ring gold, stone-set ring. Roman Catholic bishops traditionally have their episcopal ring set with an amethyst. Aside from the rings a bishop purchases or is given by others, his rings belong to the Church; he will have inherited the previous bishop's ring collection, which is held in trust. While all hierarchs are accorded the honor of being buried wearing a ring, all rings belonging to the Church will be returned to the Church upon the retirement or death of any hierarch. In a Decree of Pope Boniface IV (A.D. 610) it describes monks raised to the episcopal dignity as "anulo pontificali
Ring signature a symmetric encryption function formula_14: In the ring signature scheme, the output formula_16 is the same as the input. This function is trivially invertible given formula_17 parameters. Generating a ring signature involves six steps. The plaintext is signified by formula_18, the ring's public keys by formula_19. Signature verification involves three steps. Here is a Python implementation of the original paper using RSA. To sign and verify 2 messages in a ring of 4 users: The CryptoNote technology uses ring signatures. It was first implemented by Bytecoin. The cryptocurrency ShadowCash uses traceable ring signature to anonymize the sender of a transaction.