The simplest way to establish your bona-fides as a raider was to steal a code through repeated random dialling and offer it to the "community" for use.
Noctes atque dies animo spes laeta recurset; Certa mihi sancto flagret amore fides; Certa vetat dubitare fides, spes laeta timere; Velle vetet cuiquam non bene sanctus amor.
Mr. Carew had a stone-ring of this kind in his possession, and the person who gave it to him avowed, that "he himself saw a part of the stick sticking in it,"--but "Penes authorem sit fides," says Mr. Carew.
Aurea dum late volitant tua scripta per orbem, Et fama eternum vivis, divine poeta, Hic placida jaceas requie, custodiat urnam Cana fides, vigilenique perenni lampade muse!
“Now, Robinson,” said the Chief Inspector affably, “before we come to business I’ll prove my bona fides.
It is a difficult matter to distinguish bona-fide from "bogus" claims; they vary in amount from one to twenty pounds.
But the two spies who had come with us saw a chance to confirm or else disprove our bona fides, and while one of them stayed and watched us the other went to fetch the Sheikh of the Mosque.
The case was put by Mr. Straight with extreme care and courtesy, the learned counsel stating, "I cannot conceal from myself, or from those who instruct me, that everything has been done in accordance with fairness and bona fides on the part of Mr. Bradlaugh and the lady sitting by the side of him".
A condition accompanied the proposal, namely, that the Duke should withdraw from the alliance, and despatch his son at once to Paris, to assure the bona fides of the new arrangement.