American cryptographer
Source (Wikipedia): Taher Elgamal

Taher Elgamal is an Egyptian cryptographer and entrepreneur. He has served as the Chief Technology Officer (CTO) of Security at Salesforce since 2013. Prior to that, he was the founder and CEO of Securify and the director of engineering at RSA Security. From 1995 to 1998, he was the chief scientist at Netscape Communications. He has been described as the “father of SSL” for the work he did in computer security while working at Netscape, which helped in establishing a private and secure communications on the Internet.