openssh unix dev - Jul 2004 - Strong Encryption

Does anyone knows which one is the strongest and which is the fastest
encryption algorithms
used in OpenSSH 3.7.1p2 from the list below

aes128-cbc,
3des-cbc,
blowfish-cbc,
cast128-cbc,
arcfour,
aes192-cbc,
aes256-cbc,
rijndael-cbc at lysator.liu.se,
aes128-ctr,
aes192-ctr,
aes256-ctr

Strong Encryption 
OpenSSH supports 3DES, Blowfish, AES and arcfour as encryption algorithms.
These are patent free.
Triple DES is a time proven and well understood cipher that provides strong
encryption.
Blowfish is a fast block cipher invented by Bruce Schneier that can be used
by people that require faster encryption.
AES <http://www.nist.gov/aes> is the US Federal Information Processing
Standard (FIPS) Advanced Encryption Standard developed as a replacement for
DES. It is a fast block cipher.
Arcfour is a fast stream cipher. It is believed to be compatible with
RC4[TM], a proprietary cipher of RSA Security Inc. 
Encryption is started before authentication, and no passwords or other
information is transmitted in the clear. Encryption is also used to protect
against spoofed packets. 



 Clovis Gomes de Souza
Dresdner Bank Brasil
Dresdner Bank Lateinamerika AG
Unix and DBA support
Network and Telecommunication
S?o Paulo
Tel:	(+55 11) 5188.6923
Fax:	(+55 11) 5188.6905
Email:	clovis.souza at dbla.com
Internet:	http://www.dbla.com/

Strongest aes-256 (possible attacks on it are differential and linear 
crytanalysis)
or even 3des (because there are known attacks on it becauseit E(E(E(M))),
M being the plaintext and E being the encryption function) but they are 
slower


...Fastest blowfish



LDB


Souza, Clovis wrote:
>Does anyone knows which one is the strongest and which is the fastest
>encryption algorithms
>used in OpenSSH 3.7.1p2 from the list below
>
>aes128-cbc,
>3des-cbc,
>blowfish-cbc,
>cast128-cbc,
>arcfour,
>aes192-cbc,
>aes256-cbc,
>rijndael-cbc at lysator.liu.se,
>aes128-ctr,
>aes192-ctr,
>aes256-ctr
>
>Strong Encryption 
>OpenSSH supports 3DES, Blowfish, AES and arcfour as encryption algorithms.
>These are patent free.
>Triple DES is a time proven and well understood cipher that provides strong
>encryption.
>Blowfish is a fast block cipher invented by Bruce Schneier that can be used
>by people that require faster encryption.
>AES <http://www.nist.gov/aes> is the US Federal Information Processing
>Standard (FIPS) Advanced Encryption Standard developed as a replacement for
>DES. It is a fast block cipher.
>Arcfour is a fast stream cipher. It is believed to be compatible with
>RC4[TM], a proprietary cipher of RSA Security Inc. 
>Encryption is started before authentication, and no passwords or other
>information is transmitted in the clear. Encryption is also used to protect
>against spoofed packets. 
>
>
>
> Clovis Gomes de Souza
>Dresdner Bank Brasil
>Dresdner Bank Lateinamerika AG
>Unix and DBA support
>Network and Telecommunication
>S?o Paulo
>Tel:	(+55 11) 5188.6923
>Fax:	(+55 11) 5188.6905
>Email:	clovis.souza at dbla.com
>Internet:	http://www.dbla.com/
>
>
> 
>
>
>_______________________________________________
>openssh-unix-dev mailing list
>openssh-unix-dev at mindrot.org
>http://www.mindrot.org/mailman/listinfo/openssh-unix-dev
>
>
>
>  
>

On Thu, 8 Jul 2004, Lawrence Bowie wrote:
> Strongest aes-256 (possible attacks on it are differential and linear
> crytanalysis)
> or even 3des (because there are known attacks on it becauseit E(E(E(M))),
> M being the plaintext and E being the encryption function) but they are
> slower
>
>
> ...Fastest blowfish
>
Actually arcfour is the fastest of the listed ones.

- Ben

Souza, Clovis wrote:
> Does anyone knows which one is the strongest and which is the fastest
> encryption algorithms
> used in OpenSSH 3.7.1p2 from the list below
The crypto bottleneck in ssh is the MAC, not the cipher.

-d