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Mono(sn) Mono(sn)
NAME
sn - Digitally sign/verify/compare strongname on CLR assemblies.
SYNOPSIS
sn [-q | -quiet] [options] [parameters]
DESCRIPTION
Digitally sign, verify or compare, CLR assemblies using strongnames.
CONFIGURATION OPTIONS
Configuration options are stored in the machine.config configuration
file under /configuration/strongNames.
-c provider
Change the default CSP (Crypto Service Provider). Currently not
supported in Mono.
-m [y|n]
Use a machine [y] key container or a user [n] key container.
Currently not supported in Mono.
-Vl List the verification options. The list is kept under /configu-
ration/ strongNames/verificationSettings in machine.config.
-Vr assembly [userlist]
Exempt the specified assembly from verification for the speci-
fied user list. Currently not supported by sn, you must edit
machine.config manually if you require this.
-Vu assembly
Remove the exemption entry for the specified assembly. Currently
not supported by sn, you must edit machine.config manually if
you require this.
-Vx Remove all exemptions entries. Currently not supported by sn,
you must edit machine.config manually if you require this.
CSP RELATED OPTIONS
-d container
Delete the keypair present in the specified key container.
-i keypair.snk container
Import the specified strongname file into the specified con-
tainer.
-pc container publickey
Export the public key from the specified CSP container to the
specified file.
CONVERTION OPTIONS
-e assembly output.pub
Export the assembly public key to the specified output file.
-p keypair.snk output.pub
Export the public key from the specified strongname key file
(SNK) to the specified output file.
-o input output.txt
Convert the input file to a CSV file (using decimal).
-oh input output.txt
Convert the input file to a CSV file (using hexadecimal).
STRONGNAME SIGNING OPTIONS
-D assembly1 assembly2
Compare if assembly1 and assembly are the same exception for
their signature. This is done by comparing the hash of the
metadata of both assembly.
-k [size] keypair.snk
Create a new strongname keypair in the specified file. The
default key length is 1024 bits and MUST ALWAYS be used when
signing 1.x assemblies. Any value from 384 to 16384 bits (in
increments of 8 bits) is a valid key length to sign 2.x assem-
blies. To ensure maximum compatibility you may want to continue
using 1024 bits keys. Note that there's no good reason, even if
it's possible, to use length lesser than 1024 bits.
-R assembly keypair.snk
Resign the specified assembly using the specified strongname
keypair file (SNK). You can only sign an assembly with the pri-
vate key (SNK) that match the public key inside the assembly
(unless it's public key token has been remapped in machine.con-
fig).
-Rc assembly container
Resign the specified assembly using the specified strongname
container.
-t file
Show the public key from the specified file.
-tp file
Show the public key and the public key token from the specified
file.
-T assembly
Show the public key from the specified assembly.
-Tp assembly
Show the public key and the public key token from the specified
assembly.
-v assembly
Verify the specified assembly signature.
-vf assembly
Verify the specified assembly signature (even if disabled).
HELP OPTIONS
-h , -?
Display basic help about this tool.
-h config , -? config
Display configuration related help about this tool.
-h csp , -? csp
Display Cryptographic Service Provider related help about this
tool.
-h convert , -? convert
Display convertion related help about this tool.
-h sn , -? sn
Display strongname related help about this tool.
CONFIGURATION FILE
Strongnames configuration is kept in "machine.config" file. Currently
two
features can be configured.
/configuration/strongNames/pubTokenMapping
This mechanism let Mono remap a public key token, like the ECMA
token, to another public key for verification. This is useful in
two scenarios. First assemblies signed with the "ECMA key" needs
to be verified by the "runtime" key (as the ECMA key isn't a
public key). Second, many assemblies are signed with private
keys that Mono can't use (e.g. System.Security.dll assembly). A
new key cannot be used because it should change thr strongname
(a new key pair would have a new public key which would produce
a new token). Public key token remapping is the solution for
both problems. Each token must be configured in a "map" entry
similar to this one: <map Token="b77a5c561934e089" Pub-
licKey="00..." />
/configuration/strongNames/verificationSettings
It is often useful during development to use delay signed assem-
blies. Normally* the runtime wouldn't allow delay-signed assem-
blies to be loaded. This feature allows some delay-signed
assemblies (based on their public key token, optionally assembly
name and user name) to be used like they were fully signed
assemblies. [*] Note that Mono 1.0 "runtime" doesn't validate
strongname signatures so this option shouldn't be required in
most scenarios.
AUTHOR
Written by Sebastien Pouliot
COPYRIGHT
Copyright (C) 2003 Motus Technologies. Copyright (C) 2004 Novell.
Released under BSD license.
MAILING LISTS
Visit http://lists.ximian.com/mailman/listinfo/mono-list for details.
WEB SITE
Visit http://www.mono-project.com for details
SEE ALSO
secutil(1)
Mono(sn)
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This page was generated on Wed Sep 19 19:58:04 BST 2007
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