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Using Elliptic curves as asubstitute to RSA for signcryption , technique which accomplishes digital signature and encryption in single procedure.
1999
Recently, in 1995, elliptic curves played an important role in proving, by Andrew Wiles, Fermat's Last Theorem (formulated in 1635) , what could be considered as one of the most important mathematical achievements of the last 50 years. Elliptic curves have also close relation to BSD Conjecture (Birch and Swinnerton-Dyer Conjecture), one of the Millennium problems of the Clay Mathematics institute. Elliptic curves are currently behind practically most preferred methods of cryptographic security. Elliptic curves are also a basis of very important factorization method. prof. Jozef Gruska IV054 8. Elliptic curves cryptography and factorization 7/86
Undergraduate Texts in Mathematics, 2014
Elliptic curves have been intensively studied in number theory and algebraic geometry for over 100 years and there is an enormous amount of literature on the subject. To quote the mathematician Serge Lang: It is possible to write endlessly on elliptic curves. (This is not a threat.) Elliptic curves also figured prominently in the recent proof of Fermat's Last Theorem by Andrew Wiles. Originally pursued for purely aesthetic reasons, elliptic curves have recently been utilized in devising algorithms for factoring integers, primality proving, and in public-key cryptography. In this article, we aim to give the reader an introduction to elliptic curve cryptosystems, and to demonstrate why these systems provide relatively small block sizes, high-speed software and hardware implementations, and offer the highest strength-per-key-bit of any known public-key scheme.
Cryptography is the technique of transforming an intelligible message into unintelligible format so that the message can't be read or understood by an unauthorized person during its transmission over the public networks. A number of cryptographic techniques have been developed over the centuries. With technological advancement, new techniques have been evolved significantly. Public key cryptography offers a great security for transmitting data over the public networks such as Internet. The popular public key cryptosystems like RSA and Diffie-Hellman are becoming slowly disappearing because of requirement of large number of bits in the encryption and decryption keys. Elliptic Curve Cryptograph (ECC) is emerging as an alternative to the existing public key cryptosystems. This paper describes the idea of Elliptic Curve Cryptography (ECC) and its implementation through two dimensional (2D) geometry for data encryption and decryption. This paper discusses the implementation of ECC over prime field. Much attention has been given on the mathematics of elliptic curves starting from their derivations.
2016
Elliptic curve cryptography (ECC) is an approach to public key Cryptography based on the algebraic structure of Elliptic curves over finite field. Elliptic curves are also used in several integer factorization algorithms that have applications in cryptography. An elliptic curve in cryptography was suggested independently by Neal Koblitz and Victor S. Millar in 1985. Elliptic curve cryptography algorithms entered wide use in 2004 to 2005.Cryptography comes from Greek words meaning “hidden writing”. Cryptography converts readable data or clear text into encoded data called cipher text. By definition cryptography is the science of hiding information so that unauthorized users cannot read it. It involves Encryption and decryption of messages. Encryption is the process of converting a Plain text into cipher text and decryption is the process of getting back the original Message from the encrypted text. ECC is a newer approach to public-key cryptography based on the algebraic structure of...
MATEMATIKA, 2019
Signcryption schemes are compact and specially suited for efficiency-critical applications such as smart card dependent systems. Several researchers have performed a large number of significant applications of signcryption such as authenticated key recovery and key establishment in one mall data packet, secure ATM networks as well as light weight electronic transaction protocols and multi-casting over the internet. In this paper we have proposed an efficient and efficient scheme of signcryption symmetric key solutions, using elliptic curves by reducing senders computational cost. It needs two elliptic curve point multiplication for sender and comparative study of computational cost for sender and recipient as well as there is no any inverse computation for sender and recipient. This makes it more crucial than others.
Elliptic curve cryptography is chosen as it has smaller key size than other type of similar cryptography techniques. Elliptic based schemes produces good results in comparison of ECDH and AES in specific context. Our purpose is to make the expansion and efficient factors of elliptic curve cryptography on the basis of various analysis and applications where ecc is being used and at various places replacing the other techniques that are less effective comparatively
In this paper, using the method of encoding messages with points of an elliptic curve a new asymmetric encryption algorithm is proposed based on elliptic curves.
Various techniques are available for cryptography. One such technique is elliptic curve cryptography which is based on elliptic curves over finite fields. Several variations of ECC are available such as Elliptic Curve Integrated Encryption Scheme, Elliptic Cur ve Diffie-Hellman, Elliptic Curve Digital Signature Algorithm etc. In this paper, ECDSA and its implementation details are surveyed. ECDSA has gained a lot of popularity recently because of its ability to provide good security and shorter key size. We have proposed various improvements that can be incorporated in the existing algorithm in order to increase its efficiency in terms of security. The existing algorithm and suggested work are both implemented in Java and results are obtained.
1997
The security of many cryptographic protocols depends on the di culty of solving the so-called \discrete logarithm" problem, in the multiplicative group of a nite eld. Although, in the general case, there are no polynomial time algorithms for this problem, constant improvements are being made { with the result that the use of these protocols require much larger key sizes, for a given level of security, than may be convenient.
1999
Enge, Andreas. Elliptie eurves and their applieations to eryptography an introduetion / by Andreas Enge. p. em. Includes bibliographieal referenees and index.
2015
The point of this paper is to create a basis for apply efficient encryption schemes in wireless communications and in devices with low computing power and resources. Elliptic Curve Cryptography (ECC) fits well for an efficient and secure encryption scheme. It is more efficient than the traditional integer based RSA schemes because ECC utilizes smaller key sizes for equivalent security. A comparative study of ECC with RSA is made in terms of key size, computational power, size of data files and encrypted files. Also, another aim is to design an API to implement ECC encryption /decryption algorithm.
Global journal of Pure and Applied Mathematics
Elliptic Curve Cryptography has been a recent research area in the field of Cryptography. It provides higher level of security with lesser key size compared to other Cryptographic techniques. This paper provides an overview of ellipticcurves and their use in cryptography. The focus is on the performance advantages to be obtained by using elliptic curve cryptography instead of a traditional cryptosystem like RSA. Specific applications to secure messaging and identity-based encryption are discussed.
Elliptic curve cryptography (ECC) is an approach to public key Cryptography based on the algebraic structure of Elliptic curves over finite field. Elliptic curves are also used in several integer factorization algorithms that have applications in cryptography. An elliptic curve in cryptography was suggested independently by Neal Koblitz and Victor S. Millar in 1985. Elliptic curve cryptography algorithms entered wide use in 2004 to 2005.Cryptography comes from Greek words meaning “hidden writing”. Cryptography converts readable data or clear text into encoded data called cipher text. By definition cryptography is the science of hiding information so that unauthorized users cannot read it. It involves Encryption and decryption of messages. Encryption is the process of converting a Plain text into cipher text and decryption is the process of getting back the original Message from the encrypted text. ECC is a newer approach to public-key cryptography based on the algebraic structure of elliptic curves over finite fields, and considered a s a marvelous technique with low key size for the use r, and hard exponential time challenge for an intruder to break into the system. In ECC a 16 0 bits key, provides the same security as RSA [1] 1024 bits key, thus lower computation f aster cryptographic power is required. The advantage of elliptic curve cryptosystems is the absence of sub exponential time algorithms, for attack. As ECC uses less key size to provide more security, and for this advantage it is used to perform operations, running on smaller chips or m ore compact software. The public key cryptography- based r emote authentication schemes are not suitable for mobile devices, because of the limitation in the bandwidth, computational strength, power availability or storage in mobile devices. Elliptic Curve cryptography is very difficult to understand by attacker because it relies on Elliptic Curve Discrete Logarithm Problem known as ECDLP. So it is difficult to break.
The Elliptic Curve Cryptosystem (ECC) is an emerging alternative for traditional public key cryptosystem like RSA, DSA and Diffie-Hellman. It provides the highest strength-per-bit of any Cryptosystem known today with smaller key sizes resulting in faster computation and memory. Diffie – Hellman key exchange the protocol based on Elliptic curve cryptography. ECC techniques such as RSA is that the best known algorithm for solving ECDL the underlying hard mathematical in Scalar multiplication problem in ECC.
2008
En els darrers anys, la criptografia amb corbes el.líptiques ha adquirit una importància creixent, fins a arribar a formar part en la actualitat de diferents estàndards industrials. Tot i que s'han dissenyat variants amb corbes el.líptiques de criptosistemes clàssics, com el RSA, el seu màxim interès rau en la seva aplicació en criptosistemes basats en el Problema del Logaritme Discret,
International Journal on Cryptography and Information Security, 2012
In this work, a new digital signature based on elliptic curves is presented. We established its efficiency and security. The method, derived from a variant of ElGamal signature scheme, can be seen as a secure alternative protocol if known systems are completely broken.
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