secret key= (p,g,a) Encryption= c1=(g^k mod p) , c2=(m.B^k mod p) // 0 m2 ≡(t2m1)/t1 10 ElGamal Encryption Algorithm with Example The soul concept of this algorithm method is to make it nearly impossible to calculate the encryption approach even if … It is more efficient for decryption. ECC can be used for encryption (e.g Elgamal), secure key exchange (ECC Diffie-Hellman) and also for authentication and verification of digital signatures. Revised December 2012 ElGamal Encryption. AES encryption and decryption online tool for free.It is an aes calculator that performs aes encryption and decryption of image, text and .txt file in ECB and CBC mode with 128, 192,256 bit. ElGamal encryption scheme, presented here, fully deserves the name user-friendly, since it has an extended keyspace and its key-generation and encryption/decryption algorithms are exceedingly simple. The output can be base64 or Hex encoded. It has the standard example tools. 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