wiki:creddyRT0

creddy

 

NAME

creddy - ABAC X.509 identity and XML attribute certificate manager

 

SYNOPSIS

creddy [ --<mode> ] --help

 

DESCRIPTION

creddy is an awesome and wonderful ABAC credential management tool. It creates, verifies, and otherwise frobnicates X.509 identity and XML attribute certificates. The output of the tool is suitable for use with ABAC. Additionally, the self-signed X.509 identity certs (with associated private keys) can be used with OpenSSL. Although creddy only generates self-signed identity, it can verify and sanity check none self-signed identity certs

 

OPTIONS

 

--generate

Generate an X.509 identity cert and private key pair unless an external private key is specified . The certificate is saved in ${cn}_id.pem and the generated private key is saved in ${cn}_priva te.pem

Note that private key generation is slow and uses a lot of entropy. You can generate entropy by moving your mouse a lot or running large find commands on your local file systems

--cn
common name used on certificate, provided as a convenience and ignored by ABAC

--validity
optional certificate validity. This argument takes a time period followed by an optional suffix of s m h d y (defaults to d if omitted). The default is 1080 days

--out
optional output directory. Must exist before invoking the command

--key
optional external private key to be use for this identity

 

--verify

verify the signature on a (self-signed and none self-signed) X.509 identity cert or an X.509 att ribute cert

--cert
X.509 identity cert

--attrcert
optional XML attribute cert.

 

--keyid

extract the subjectKeyIdentifier (SHA1 hash) from an X.509 identity cert

--cert
X.509 identity cert

 

--attribute

generate an XML attribute cert representing an ABAC credential

An attribute cert has one or more subjects. A single subject may be defined without a role. Othe rwise, subjects are defined by a pair of a --subject-{cert,id} and --subject-{role} and may incl ude an optional --subject-link or just --subject-obj or --subject-cert. Providing multiple subje cts creates an intersection certificate

--issuer
X.509 identity cert issuing the credential

--key
private key associated with issuer cert

--role
role in issuer's local attribute space

--subject-cert
X.509 identity cert representing the principal to which the role is being issued. This fulfills the same purpose as --subject-id and should only be used once per subject

--subject-id
public key identifier (SHA1 hash) of the principal to which the role is being issued. This fulfi lls the same purpose as --subject-cert and should only be used once per subject

--subject-role
optional role in subject's local attribute space. If the issuer is A, role is r1, subject is B, and subject-role is r2, the attribute issued will be A.r1 <- B.r2

--subject-link
optional linking role in subject's local attribute space. If the issuer is A, role is r1, subjec t is B, subject-link is r2 and subject-role is r3, the attribute issued will be A.r1 <- B.r2. r3

--subject-obj
optional object in subject's local attribute space. If the issuer is A, role is r1, and subject- obj is r2, the attribute issued will be A.r1 <- r2

--validity
optional certificate validity. This argument takes a time period followed by an optional suffix of s m h d y (defaults to d if omitted). The default is 365 days

--out
where to save DER-encoded attribute cert. In order to interoperate with the rest of ABAC, this n ame should end in _attr.der

 

--roles

Extract the roles from an XML attribute cert

--cert
XML attribute cert containing ABAC roles

 

--display

Displays metadata from an X.509 identity or XML attribute cert

--show=[issuer,..,all]
comma-separated list of:


    issuer      DN of issuer
    subject     DN of subject
    validity    validity period
    roles       attribute cert&n; bsp;roles (fails silently on ID certs)
    all         all of  the above

--cert
X.509 identity or XMLattribute cert

 

--version

display ABAC/creddy version

 

EXAMPLES

Generate ID cert and private key pairs:

creddy --generate --cn Alice
creddy --generate --cn Bob

Issue the credential Alice.friend <- Bob

creddy --attribute \
       --issuer Alice_ID.pem --key Alice_p rivate.pem \
       --role friend --subject-cert Bob_ID .pem \
       --out Alice_friend__Bob_attr.der

 

AUTHOR

Written by Mike Ryan
Updated by Mei-Hui Su <mei@ISI.EDU>.

 

BUGS

None yet. Report to http://abac.deterlab.net/

 

COPYRIGHT

Copyright (c) 2010-2013 USC/ISI. Released under MIT license. See COPYING included with source fo r details.

Last modified 8 years ago Last modified on May 15, 2013 2:19:52 PM