PLAINRSA-GEN(8) BSD System Manager's Manual PLAINRSA-GEN(8)NAMEplainrsa-gen — generator for Plain RSA keys
SYNOPSISplainrsa-gen [-b bits] [-e pubexp] [-f outfile] [-h]
DESCRIPTIONplainrsa-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
more time.
-e pubexp
value of the RSA public exponent. Default is 0x3. Don't change
this unless you really know what you are doing!
-f outfile
write the resulting key to outfile instead of stdout. If the
file already exists it won't be overwritten. You wouldn't like
to lose your private key by accident, 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 ALSOracoon.conf(5), racoon(8)HISTORYplainrsa-gen was written by Michal Ludvig ⟨michal@logix.cz⟩ and first
appeared in ipsec-tools 0.4.
BSD June 14, 2004 BSD
