Email Encryption: Is 1024 bit is the highest level of Email security? Isn't it easy to penetrate that?

Answer 1

no, and no

try just making your words funky weird like

or pgp

Answer 2

A question about the security of the key length is meaningless if you don't specify the cipher used.

Most symmetric ciphers (DES, AES, IDEA, RC4, etc.) use key lengths varying between 40 and 256 bits. With *those* ciphers, 40 is on the low side (i.e., can be broken by brute force in a reasonably short time), while 128 and higher is adequate.

1024 bit key length provides adequate security when used in the RSA cipher (which is an asymmetric ciper). Longer key lengths are prossible (e.g., 2048 and 4096 - it's basically limited only by the available computing power), but it's an overkill.

But nobody uses asymmetric ciphers to encrypt e-mail messages directly - it's slow, inefficient, and has some security flaws. Instead, the message is encrypted with a symmetric cipher and the (randomly-generated) key for it is encrypted using the asymmetric cipher.

Answer 3

1) No, there are higher levels, but 1024 bit is plenty. Remember, SSL for websites is only 40-bit or 128-bit encryption.

2) Do you have ANY idea how big of a number 2 to the 1024 power is?

Answer 4

you'll need a lot of computer power to decrypt that...it's possible for government agencies to penetrate that..