Taher Elgamal (Arabic: ???? ?????) (born 18 August 1955) is an Egyptian cryptographer and entrepreneur.
He is recognized as the "father of SSL," for his 1985 paper entitled "A Public key Cryptosystem and A Signature Scheme based on discrete Logarithms" in which he proposed the design of the ElGamal discrete log cryptosystem and of the ElGamal signature scheme and the work he and others at Netscape did on promoting private and secure communications on the internet.
He has also participated in the "SET" credit card payment protocol, plus a number of Internet payment schemes.