Working with CNG (Cryptography Next Generation) can sometimes be a little frustrating, and often times MS is slow to add support for newer algorithms. So I came up with my own streaming Encryption routine that operates in VB6. Comments are welcome.
CNG is used to create the random key used for testing. The bytes within this random key are then shuffled using information obtained from the key itself. The shuffled bytes are then hashed to prevent matching of the shuffled bytes to the original key, and this is then XOR'd in a rotating fashion with the Plain Text to produce the Encrypted Text. The final key used in the XOR operation is never held in memory, thereby preventing a hacker from recovering it from memory.
J.A. Coutts
CNG is used to create the random key used for testing. The bytes within this random key are then shuffled using information obtained from the key itself. The shuffled bytes are then hashed to prevent matching of the shuffled bytes to the original key, and this is then XOR'd in a rotating fashion with the Plain Text to produce the Encrypted Text. The final key used in the XOR operation is never held in memory, thereby preventing a hacker from recovering it from memory.
J.A. Coutts