Schaeblin이 Mr Jones에게, 헤이그, 1753년, 새 프랑스어 암호에 관하여

01 문서

분명한 필체로 양면에 쓴 한 장으로, “Hague Janry 16. 1753”이라는 날짜와 “C. Ben. Schaeblin”의 서명이 있고, 뒷면 아래쪽에 “To Mr Jones.”가 있다. Add MS 32256은 Newcastle Papers 중 1753년 외교 서신에 속한다. DECODE의 태그 “nomenclator; numerical”은 이 편지가 다루는 암호를 묘사한 것이다.

02 텍스트

약어는 그대로 두었다(yr = your, ye = the, wch = which).

Sr. — I have yr Honr of sending you inclosed a List of Names of most of the Ministers actually employed by the several Courts of Europe, in publick Affairs, which I intended to insert into the new French Cypher, and beg you will send it me back with the Additions or omissions that may be thought proper; I have added a List of names, that though in the English Cypher are either dead or no more in a publick Capacity, & in regard to wch I beg to be instructed. I did not think it necessary to send you also a List of the Places, Countries &c. I kept all those that are found in the English Cypher, & added many more, particularly ye names of most of the European Settlements in Asia, Africa, & America, as those places will chiefly be ye Subject of French Papers that may be wanted to be put into Cypher. As for ye rest, I shall make it in ye same manner as ye English, with ye same number of Cyphers, viz. 3000. and bring likewise in several Blanks.

In Order to disguise it sometimes, without ye help of a Second Cypher, I propose several Methods, for Instance, by taking ye Figures of every Cypher backwards, E.G. 1753. write 3571. and vice versâ in decyphering it; Item, by putting ye first figure at ye End, E.G. 1753. write 7531. Item by putting ye last figure at ye head, as 1753 write 3175. & both vice versâ in decyphering. Item by adding any indifferent figure at ye head or end of each Cypher, wch is then only to be taken off in decyphering, E.G. 1753. write 21753, or 17536. Each of these Methods might be marked where it begins, by two or three Cyphers like the Change the Cypher in the last English Cyphers; & some other marks, where it changes again into the natural way. To avoid Confusion, I wd add a Note that these different Methods are not to be minded, or to follow one another immediately, without Changing before into ye natural way.

I beg ye favour you will let me know, wch of these several Methods I may make use of, & as soon as I am honoured with yr Answer, I shall only want a week’s Time to put it entirely in order, & transmit a fair Copy of it. I shall do my Utmost Endeavours to make it as compleat as possible, & flatter myself to succeed as far as can be expected. — I have ye Honour &c. C. Ben. Schaeblin. To Mr Jones.

03 불확실하게 남은 것

• “not to be minded”는 아마 “mixed” 또는 “mingled”를 뜻할 것이다(C). 어느 쪽이든 뜻은 분명하다.
• Schaeblin과 Jones가 누구였는지는 여기서 밝혀지지 않았다. 편지는 Schaeblin이 헤이그에서 영국 측을 위해 암호를 만들고 있었음을 보여 준다.
• 3000개 군으로 된 프랑스어 암호는 DECODE에 있는 같은 계열의 키 기록 94건 가운데 남아 있을지도 모른다(가장 가까운 것은 R9219, 1760년). 확인하지 않았다.

04 출처

• British Library, Add MS 32256 f. 235r–v, DECODE R9218 경유(이미지는 로그인 필요).

노트와 전사: 저장소의 targets/jones1753/.