The password of the king of Spain was destroyed after 500 years

The extremely complex cryptography of King Ferdinand was successfully deciphered by the Spanish intelligence agency.

The Spanish intelligence agency broke the cryptography success that was used by Aragon in letters exchanged with the military commander 500 years ago, uncovering one of the greatest mysteries in the country's history. Hey, ABC reported on February 2.

Letters written in the code of King Ferdinand.(Video: ABC).

The password includes more than 200 special characters, making early historians throughout the centuries. Researchers say that decoding achievements are important because it can help discover many other inexplicable letters of King Ferdinand.

The letters between Ferdinand and General Gonzalo de Córdoba included many strategic instructions relating to Spanish military campaigns in Naples in the early 16th century, located in a prolonged battle between the kingdom and France to win control of the Mediterranean. Spain took control of Naples in 1504 and occupied the area until 1647.

Letters are encoded in combination letters, geometry and counting.(Photo: BBC).

At that time, the king's letters took 15 days to reach General Córdoba in southeastern Italy. In this situation, cryptography is a useful tool to keep instructions hidden in case the letter falls into enemy hands throughout the long journey.

After documents including some 20-page documents appeared in the gallery at the Spanish Military Museum in Toledo, experts from the National Intelligence Center (CNI) were asked to award code. After nearly 6 months of scrutinizing the letters from 1502 to 1506, they finally deciphered successfully.

King Ferdinand is one of Spain's famous kings.(Photo: Wikipedia).

The cryptosystem in the letter is extremely complicated, using 237 special combination letters and 88 different symbols, including geometry and counting. Each letter is denoted by 2 - 6 combined letters or symbols. In addition, there are no spaces between words and phrases.

King Ferdinand is one of Spain's most famous kings. He completed a century-long re-conquest on the Iberian Peninsula in 1492 and was the sponsor of Christopher Columbus's first American expedition.