Is RSA or ElGamal more secure?

Is RSA or ElGamal more secure?

RSA encryption whose security is based on the infeasibility of solving the factoring of big primes problem and the ElGamal encryption which is as secure as the discrete logarithmic problem.

How ElGamal is efficient than RSA give reason?

The one-sentence answer is: ElGamal relies on the computational difficulty of solving the discrete logarithm problem, while RSA relies on the computational difficulty of factoring large primes.

Is RSA an asymmetric algorithm?

RSA is named for the MIT scientists (Rivest, Shamir, and Adleman) who first described it in 1977. It is an asymmetric algorithm that uses a publicly known key for encryption, but requires a different key, known only to the intended recipient, for decryption.

Is ElGamal safe?

ElGamal encryption is provably secure under CPA [19], and is insecure under CCA2. It is conjectured to be secure under CCA1, but there has been no formal proof. But DEG may still be the most efficient IND-CCA1 secure public key encryption scheme having a security proof without random oracles.

Is ElGamal encryption used?

ElGamal encryption is used in the free GNU Privacy Guard software, recent versions of PGP, and other cryptosystems. The Digital Signature Algorithm (DSA) is a variant of the ElGamal signature scheme, which should not be confused with ElGamal encryption.

Is ElGamal secure?

What are the differences and similarities between ElGamal and Diffie Hellman?

ElGamal encryption is an example of public-key or asymmetric cryptography. This is the ‘one way function’ at the heart of ElGamal’s encryption and decryption algorithms. Diffie-Hellman key exchange algorithm is also based on the discrete logarithm, and allows two people to establish a shared secret key.

Is ElGamal symmetric or asymmetric?

In cryptography, the ElGamal encryption system is an asymmetric key encryption algorithm for public-key cryptography which is based on the Diffie–Hellman key exchange.

Which algorithm uses asymmetric encryption?

RSA
RSA Asymmetric Encryption Algorithm Invented by Ron Rivest, Adi Shamir, and Leonard Adleman (hence “RSA”) in 1977, RSA is, to date, the most widely used asymmetric encryption algorithm. Its potency lies in the “prime factorization” method that it relies upon.

Which of the following is asymmetric encryption algorithm?

RSA is an algorithm used by modern computers to encrypt and decrypt messages. It is an asymmetric cryptographic algorithm. Asymmetric means that there are two different keys. This is also called public key cryptography, because one of them can be given to everyone.