Category: Encryption

When using digital signatures with email: The sender’s private key encrypts (or signs). The sender’s public key decrypts. A digital signature provides authentication (verified identification) of the sender, nonrepudiation, and integrity of the message. Senders create a digital signature by hashing a message and encrypting the hash with the sender’s private key. Recipients decrypt the […]

Twofish is a symmetric encryption cipher. Twofish Symmetric 128-bit block cipher 128-, 192-, or 256-bit key

AES Symmetric 128-bit block cipher 128-bit encryption keys 192-bit encryption keys 256-bit encryption keys Strong N/A

Blowfish Symmetric 64-bit block cipher 32- to 448-bit key

DES Symmetric 64-bit block cipher 64 bit (56 + 8 parity) 56-bit encryption keys Very weak 3DES

Infection relies heavily on hiding from and evading traditional security solutions. Targeted attacks will often develop new and unique malware that is customized specifically for the target network. This technique allows the attacker to send in malware knowing that it is unlikely to be detected by traditional antivirus tools. Another common way to avoid security […]