fot the past 25 years single des algorithm was used. But now triple des is used in atm cards for the encryption and decryption.
Two basic functions used in Encryption Algorithms are * Substitution * Transposition
People have developed many encryption algorithms. One particular encryption algorithm is the Rijndael algorithm, usually called the AES or Advanced Encryption Standard.
High efficiency not complex high secure
There are many different algorithms used in cryptography - RSA, DES and Rabine ciphers are a few that can be used - as well as others that are used to help determine the constants in a system like Euclid's algorithm.
If you're talking about symmetric key encryption (the kind where you just use one key for encryption and decryption), then arguably, the best encryption algorithm you can use is the Rijndael algorithm, better known now as AES (advanced encryption standard). It is the encryption standard used by the U.S. government for classified information. It is fast, requires little memory, and the only potential attacks against it are highly theoretical. Rijndael beat out Twofish and Serpent in the AES standard contest, but those other two algorithms will provide more than enough security as well. In the end, it doesn't really matter, since most successful attacks are made simply by finding out your key through brute force, espionage or extortion, rather than pure data analysis. Humans are almost always the weakest point when it comes to security, and it doesn't matter what algorithm you use if someone can guess your password.
Encryption algorithms are typically used in computer communications. An encryption algorithm provides a secure transfer for data by encrypting it before presenting at another computer or elsewhere.
Two basic functions used in Encryption Algorithms are * Substitution * Transposition
Federal Information Processing Standard (FIPS) is used by the US Government to accredit cryptographic modules. The agencies responsible for processing this information are encryption algorithms.
Encryption algorithms
Symmetric-key algorithms are a class of algorithms for cryptography that use trivially related, often identical, cryptographic keys for both decryption and encryption.
The advantages of blowfish encryption is that it is one of the strongest algorithms available and the speed of the algorithms and key strength is also very good.
Aes
AES
Hash Encoding
Encryption and decryption algorithms are called ciphers in cryptography
People have developed many encryption algorithms. One particular encryption algorithm is the Rijndael algorithm, usually called the AES or Advanced Encryption Standard.
In cryptography, public key algorithms require two keys, one secret and one public. The public key is used in the encryption function, while the secret key is used in decryption . Conventional, or symmetric algorithms use a single key for both purposes.