8051 enthusiastneat little fact about CRCs and stream ciphers: if you append a CRC to a message, you always get the same CRC.
if you encrypt the resulting message with a stream cipher, the CRC of the message is cancelled out so you essentially get the CRC of the keystream. as a result, if you encrypt 2 different files of same length with CRC appended with the same (unsalted) key, you get the same CRC on the encrypted file
if you encrypt the resulting message with a stream cipher, the CRC of the message is cancelled out so you essentially get the CRC of the keystream. as a result, if you encrypt 2 different files of same length with CRC appended with the same (unsalted) key, you get the same CRC on the encrypted file
Óscar Toledo G.
joey castillo
Ange
Phil M0OFX
keen456
keen456
cryptax
radare 
