内容简介：Eureka! I think I've found a patroness saint for cryptographers:She invented her own cipher alphabet!:
St. Hildegard's Litteræ Ignotæ
Eureka! I think I've found a patroness saint for cryptographers: St. Hildegard von Bingen !
She invented her own cipher alphabet!:
It appears to be a basic substitution cipher.
From The Codebreakers :
Hildegard von Bingen, an 11th-century nun who saw apocalyptic visions and was later canonized, had a cipher alphabet which she claimed came to her in a flash of inspiration.
"Some say her nuns used the Lingua to share secrets unknown to anyone outside the walls of their convent." ( source ).Raymond Lully, T.O.S.F. (1232-1315) (mentioned in the excellent history-of-logic article: " The Scholastics' Neglected Heritage ") later devised a method of polyalphabetic substitution.
St. Hildegard's researches into botany (see this translated excerpt of her Physica ) and cosmology (see ch. 12 of Sungenis's Galileo Was Wrong vol. 2 PDF p. 463f., which includes exclusive translations from German of St. Hildegard; cf. The Principle documentary .) are impressive, as is the music she composed .
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文明之光（第四册）
吴军 / 人民邮电出版社 / 2017-3 / 69.00元
计算机科学家吴军博士继创作《浪潮之巅》、《数学之美》之后，将视角拉回到人类文明史，以他独具的观点从对人类文明产生了重大影响却在过去被忽略的历史故事里，选择了有意思的几十个片段特写，有机地展现了一幅人类文明发展的画卷。《文明之光》系列创作历经整整四年，本书为其第四卷。 作者所选的创作素材来自于十几年来在世界各地的所见所闻，对其内容都有着深刻的体会和认识。《文明之光》系列第四册每个章节依然相对独......一起来看看 《文明之光（第四册）》 这本书的介绍吧!
