972未解历史密码
中文译本 · 原作 Daniel Bourdeau《Unsolved Historical Ciphers》 以 CC BY 4.0 发布，本页由 JIC 翻译，非原作者官方版本，译文如有出入以英文原页为准 · 查看英文原页 ↗
1753 → 3571 · 1753 → 7531 · 1753 → 3175 · 1753 → 21753, 17536
“by taking ye Figures of every Cypher backwards …”

海牙 → Jones 先生 · 关于编制密码的明文信件 · 1753年1月16日

Schaeblin 致 Jones 先生，海牙，1753年，谈一部新的法文密码

British Library，Add MS 32256 f. 235（DECODE R9218），编目为 Jones 先生致 Ben. Schaeblin 的两页数字名码本信件，未解读。这两页其实是英文明文，而且信的方向正好相反：是 Schaeblin 写信给 Jones，谈他正在编制的新法文密码。这里没有什么需要解密的；信件已全文转录。

Daniel Bourdeau · 发布于 · 更新于

方法：并非密码

摘要。DECODE 把 R9218 列为一封加密信件，“Mr. Jones (Hague) to Ben. Schaeblin”，1753年，数字名码本，无解读。图像上看不到任何密文。这是一封清晰的英文信，1753年1月16日写于海牙，署名“C. Ben. Schaeblin”，收信人为“To Mr Jones”，所以 DECODE 把发信人和收信人弄反了。Schaeblin 正在仿照“the English Cypher”为英国方面编制一部新的法文密码：3000个数字外加空位，欧洲各宫廷的现任大臣，以及欧洲人在亚洲、非洲和美洲的殖民据点。他提议不借助第二部密码来加以伪装，办法是把每个数字倒过来写、轮换其数位，或者加一个虚设数位，每次切换都用一个“Change the Cypher”码组来标示。页面上仅有的数字是他以1753为例演示的算例。整封信都已转录；那部法文密码本身没有去查找。

01 文献

f. 235r 下半部分：几种伪装方法，1753写作3571和7531
f. 235r，页脚：“by taking ye Figures of every Cypher backwards, E.G. 1753. write 3571 … by putting ye first figure at ye End, E.G. 1753. write 7531.” 图像：British Library，Add MS 32256 f. 235r，经由 DECODE R9218。

一叶，两面书写，字迹清晰，日期为“Hague Janry 16. 1753”，署名“C. Ben. Schaeblin”，背面页脚有“To Mr Jones.”。Add MS 32256 属于纽卡斯尔文件（Newcastle Papers）中1753年的外交通信。DECODE 的标签“nomenclator; numerical”描述的是这封信所谈论的那部密码。

02 文本

保留缩写（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 尚存疑问

04 来源

笔记与转录：代码库中的 targets/jones1753/。