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El Gamal is a public key algorithm that can be used for digital signatures, encryption, and key exchange. True or false, El Gamal is based on the difficulty of factoring large numbers?
True
False
The correct response is false. El Gamal is an unpatented, asymmetric key algorithm based on the discrete logarithm problem used in Diffie-Hellman (discussed in the preceding section). El Gamal extends the functionality of Diffie-Hellman to include encryption and digital signatures.
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