al-Kindi الكندي

Al-Kindi was also one of the fathers of cryptography, introduced several new methods of breaking ciphers, notably frequency analysis.

Full Name: Abū Yūsuf Yaʻqūb ibn ʼIsḥāq aṣ-Ṣabbāḥ al-Kindī .

Other Names: al-Kindi, Alkindus

Arabic: أبو يوسف يعقوب بن إسحاق الصبّاح الكندي

Born: c. 801 .

Died: c. 873 .

Origin: Kufa, Abbasid Caliphate (now in Iraq).

Famous for: Philosopher, Mathematician, Physician, and Music theorist.

Contributions: 

He was one the main contributors of translations of Greek scientific and philosophical texts into the Arabic language, in House of Wisdom.

Al-Kindi played an important role in introducing Hindu numerals to the Islamic world.

Articles

https://en.wikipedia.org/wiki/Al-Kindi

https://www.britannica.com/biography/al-Kindi

https://muslimheritage.com/al-kindi/

https://www.oxfordreference.com/display/10.1093/oi/authority.20110803095403260

Books attributed to al-Kindi: