Nov 30, 2022 21:00:00

What is the content of the top secret ciphertext that will be deciphered by the Holy Roman Emperor over 500 years?

Charles

V , who was crowned Holy Roman Emperor in 1519 at the young age of 19, was both Holy Roman Emperor and King of Spain, gaining control over much of Western Europe and America during his reign of over 40 years. He was one of the most powerful figures of the 16th century who built the 'empire where the sun never sets'. It was reported that the ciphertext left by Carl V was deciphered and its contents were revived after about 500 years.

It took nearly 500 years for researchers to crack Charles V's secret code | Ars Technica
https://arstechnica.com/science/2022/11/cracking-charles-vs-secret-code-reveals-suspected-assassination-attempt/

Emperor Charles V's secret code cracked after five centuries | Spain | The Guardian
https://www.theguardian.com/world/2022/nov/24/emperor-charles-vs-secret-code-cracked-after-five-centuries

French Scientists Decode 500-Year-Old Letter Of King Charles V
https://www.ndtv.com/offbeat/french-scientists-decode-500-year-old-letter-of-king-charles-v-3564229

What was deciphered this time is a letter of 1547 addressed to Jean de Saint-Maurice, the ambassador sent by Charles V to the Kingdom of France.

Signed by Charles V and enigmatically ciphered, the letter was long forgotten in the collection of the Nancy City Library in France, until Cécile Pierrot, a cryptographer, discovered its existence. was discovered by Mr.

According to Mr. Piero, who used a computer to decipher it, the cipher left by Carl V is composed of 120 symbols. However, those symbols are not simply replaced with alphabets and numbers, and one symbol means one whole word, and completely meaningless symbols are mixed in to deceive the decipherer. was extremely complicated.

The breakthrough in the difficult deciphering work was another ciphertext presented to the research team by Camille Dezanclo, a historian who is familiar with the relationship between France and the Holy Roman Emperor. The ciphertext, stored in Besançon, France, had been unofficially deciphered by a person who received letters from Charles V, much like the

Rosetta Stone , the key to deciphering ancient Egyptian hieroglyphs. It was an important clue.

Mr. Piero said in an interview, ``It would have taken literally longer than the history of the universe to simply input it into a computer and calculate it.''

The research team of Mr. Piero and others plans to publish the ciphertext of Charles V, which was able to be deciphered this time, in a paper, so the full contents of the letter have not been revealed yet, but the letter was written by the King of England a few weeks before the writing. It was written after the death of Henry VIII and the rebellion of a Protestant group called the Schmalkalden Alliance in Germany.

Charles V, who was struggling with Martin Luther's Reformation, wrote in a letter to the ambassador to France, 'While making peace with France to concentrate our forces on fighting the alliance, England and France I want to prevent the sending of aid to the alliance,' and instructed him to grasp the movements of the French court without omission.

Charles V also referred to rumors that an assassination attempt on the Holy Roman Emperor was being plotted in France and that he was being targeted by Pierre Strozzi, the leader of the Italian Condottiere , or mercenaries. I have ordered the Ambassador to investigate the authenticity of this in as much detail as possible.

The research team hopes to decipher other letters written by Charles V over the next few years to shed light on Charles V's political strategy in Europe. There will be,' he said.