FluxGFX
February 7th, 2003, 11:19 PM
Encryption algorithms
CAST. CAST is a 128-bit block cipher. It is a strong, military-grade encryption algorithm, which has a solid reputation for its ability to withstand unauthorized access.
AES. The new AES (Advanced Encryption Standard) is Rijndael, a block cipher designed by Joan Daemen and Vincent Rijmen. It was chosen by NIST because it is considered to be both faster and smaller than its competitors. The key size and block size can be 128-bit, 192-bit, or 256-bit in size and either can be increased by increments of 32 bits.
IDEA. IDEA is the algorithm used for all RSA Legacy keys generated by PGP.
Triple-DES. Triple-DES is a U.S. Government algorithm that has withstood the test of time. It?s an encryption configuration in which the DES algorithm is used three times with three different keys.
Twofish. Twofish is a new 256-bit block cipher, symmetric algorithm created by Bruce Schneier. Twofish is one of five algorithms that the U.S. National Institute of Standards and Technology (NIST) is considering as a replacement for the current Advanced Encryption Standard (AES).
Blowfish is a symmetric block cipher that can be used as a drop-in replacement for DES or IDEA. It takes a variable-length key, from 32 bits to 448 bits, making it ideal for both domestic and exportable use. Blowfish was designed in 1993 by Bruce Schneier as a fast, free alternative to existing encryption algorithms. Since then it has been analyzed considerably, and it is slowly gaining acceptance as a strong encryption algorithm. Blowfish is unpatented and license-free, and is available free for all uses.
DES is a block cipher - i.e. it acts on a fixed-length block of plaintext and converts it into a block of ciphertext of the same size by using the secret key. In DES, the block size for plaintext is 64 bits. The length of the key is also 64 bits but 8 bits are used for parity. Hence the effective key length is only 56 bits. In 3DES, we apply 3 stages of DES with a seperate key for each stage. So the key length in 3DES is 168 bits.
******* Decryption is done by applying the reverse transformation to the block of ciphertext using the same key. Since the same key is used both in encryption and decryption, DES is a symmetric key cipher. This method differs from algorithms like the RSA encryption which use different keys to encrypt and decrypt a message.
Now what I'm wondering is what would be the best encryption method wich would give ANY KIND of Agency like CIA, NSA, MS5, NAD, etc.. a really f* pain in the AS*
CAST. CAST is a 128-bit block cipher. It is a strong, military-grade encryption algorithm, which has a solid reputation for its ability to withstand unauthorized access.
AES. The new AES (Advanced Encryption Standard) is Rijndael, a block cipher designed by Joan Daemen and Vincent Rijmen. It was chosen by NIST because it is considered to be both faster and smaller than its competitors. The key size and block size can be 128-bit, 192-bit, or 256-bit in size and either can be increased by increments of 32 bits.
IDEA. IDEA is the algorithm used for all RSA Legacy keys generated by PGP.
Triple-DES. Triple-DES is a U.S. Government algorithm that has withstood the test of time. It?s an encryption configuration in which the DES algorithm is used three times with three different keys.
Twofish. Twofish is a new 256-bit block cipher, symmetric algorithm created by Bruce Schneier. Twofish is one of five algorithms that the U.S. National Institute of Standards and Technology (NIST) is considering as a replacement for the current Advanced Encryption Standard (AES).
Blowfish is a symmetric block cipher that can be used as a drop-in replacement for DES or IDEA. It takes a variable-length key, from 32 bits to 448 bits, making it ideal for both domestic and exportable use. Blowfish was designed in 1993 by Bruce Schneier as a fast, free alternative to existing encryption algorithms. Since then it has been analyzed considerably, and it is slowly gaining acceptance as a strong encryption algorithm. Blowfish is unpatented and license-free, and is available free for all uses.
DES is a block cipher - i.e. it acts on a fixed-length block of plaintext and converts it into a block of ciphertext of the same size by using the secret key. In DES, the block size for plaintext is 64 bits. The length of the key is also 64 bits but 8 bits are used for parity. Hence the effective key length is only 56 bits. In 3DES, we apply 3 stages of DES with a seperate key for each stage. So the key length in 3DES is 168 bits.
******* Decryption is done by applying the reverse transformation to the block of ciphertext using the same key. Since the same key is used both in encryption and decryption, DES is a symmetric key cipher. This method differs from algorithms like the RSA encryption which use different keys to encrypt and decrypt a message.
Now what I'm wondering is what would be the best encryption method wich would give ANY KIND of Agency like CIA, NSA, MS5, NAD, etc.. a really f* pain in the AS*