The IDEA encryption algorithm is a strong encryption function based on a 128-bit key. It uses a symmetric private key approach and is used by multiple international governments. However, its patent expired in 2011 and it is unable to process at speeds sufficient for many high-speed transactions.
Data encryption has been used for centuries as a way to protect sensitive data. In the late 1970s, data encryption standards (DES) were created by the US federal government. This standard is maintained by the National Institute for Standards and Technology. The International Data Encryption Algorithm (IDEA) is an encryption function created in 1991 by James Massey and Xuejia Lai of ETH Zurich. The IDEA encryption algorithm is based on a 128-bit encryption key, which is the key that encrypts and decrypts messages.
Cryptography is a science that focuses on standards for encrypting data. This process converts plain text data into an unrecognizable string of characters. Encryption is typically used by most governments for sharing military and sensitive data between organizations. Most cryptographic algorithms use secret keys to encrypt and decrypt plaintext data.
Public key cryptography is a type of encryption in which two keys are required to decrypt information. One key is used for encryption and another key is used for decrypting messages. This form of encryption is known as asymmetric cryptography because a public key is shared with trusted parties.
IDEA encryption algorithms use a symmetric private key approach. This form of encryption uses only one key. With this approach, a single key is used to encrypt and decrypt plaintext data. The symmetric approach is usually faster because it’s easier for the computer to interpret a single key.
The IDEA encryption algorithm has a patent expiring in 2011, making it unavailable for commercial use. This algorithm is used by multiple international governments as a form of data encryption. This encryption algorithm is included as an optional algorithm for the well-known PGP (Like Good Privacy) encryption standard.
The IDEA encryption algorithm uses a 128-bit encryption key and is considered a strong encryption algorithm. This is because IDEA uses mathematical functions that manipulate the string of characters in addition to the 128-bit key. These functions include simple multiplication combined with advanced algebraic manipulation.
Data encryption is widely used in many applications around the world. These applications include email, video conferencing, cable TV, and secure Internet protocols. The IDEA encryption algorithm will work with encryption protocols that require moderate encryption rates.
With encryption used in everything from smart cards to cell phones, encryption performance is critical. An ATM is a good example of online encryption on a high-speed network. Currently the IDEA encryption algorithm is unable to process at speeds sufficient for many high speed transactions.
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