02-18-2010
thanks a lot...i just was not sure with "ssh-keygen -t rsa" command, it will generate (default)1024 bytes public key...
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LEARN ABOUT SUSE
plainrsa-gen
PLAINRSA-GEN(8) BSD System Manager's Manual PLAINRSA-GEN(8)
NAME
plainrsa-gen -- generator for Plain RSA keys
SYNOPSIS
plainrsa-gen [-b bits] [-e pubexp] [-f outfile] [-h]
DESCRIPTION
plainrsa-gen can be used to generate Plain RSA keys for authentication purposes. Using Plain RSA keys is optional. Other possibilities are
Pre-shared keys or X.509 certificates.
-b bits
bit length of the key. Default is 1024, recommended length is 2048 or even 4096 bits. Note that generating longer keys takes longer
time.
-e pubexp
value of RSA public exponent. Default is 0x3. Don't change this unless you really know what you are doing!
-f outfile
outfile instead of stdout. If the file already exists it won't be overwritten. You wouldn't like to lose your private key by acci-
dent, would you?
OUTPUT FILE FORMAT
This is the secret private key that should never leave your computer:
: RSA {
# RSA 1024 bits
# pubkey=0sAQOrWlcwbAIdNSMhDt...
Modulus: 0xab5a57306c021d3523...
PublicExponent: 0x03
PrivateExponent: 0x723c3a2048...
Prime1: 0xd309b30e6adf9d85c01...
Prime2: 0xcfdc2a8aa5b2b3c90e3...
Exponent1: 0x8cb122099c9513ae...
Exponent2: 0x8a92c7071921cd30...
Coefficient: 0x722751305eafe9...
}
The line pubkey=0sAQOrW... of the private key contains a public key that should be stored in the other peer's configuration in this format:
: PUB 0sAQOrWlcwbAIdNSMhDt...
You can also specify from and to addresses for which the key is valid:
0.0.0.0/0 10.20.30.0/24 : PUB 0sAQOrWlcwbAIdNSMhDt...
SEE ALSO
racoon.conf(5), racoon(8)
HISTORY
plainrsa-gen was written by Michal Ludvig <michal@logix.cz> and first appeared in ipsec-tools 0.4.
BSD
June 14, 2004 BSD