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Strongswan

.TH "PKI \-\-PUB" 1 "2013-07-31" "@PACKAGE_VERSION@" "strongSwan"
.
.SH "NAME"
.
pki \-\-pub \- Extract a public key from a private key or certificate
.
.SH "SYNOPSIS"
.
.SY pki\ \-\-pub
.RB [ \-\-in
.IR file | \fB\-\-keyid\fR
.IR hex ]
.OP \-\-type type
.OP \-\-outform encoding
.OP \-\-debug level
.YS
.
.SY pki\ \-\-pub
.BI \-\-options\~ file
.YS
.
.SY "pki \-\-pub"
.B \-h
|
.B \-\-help
.YS
.
.SH "DESCRIPTION"
.
This sub-command of
.BR pki (1)
extracts public keys from a private keys and certificates.
.
.SH "OPTIONS"
.
.TP
.B "\-h, \-\-help"
Print usage information with a summary of the available options.
.TP
.BI "\-v, \-\-debug " level
Set debug level, default: 1.
.TP
.BI "\-+, \-\-options " file
Read command line options from \fIfile\fR.
.TP
.BI "\-i, \-\-in " file
Input file. If not given the input is read from \fISTDIN\fR.
.TP
.BI "\-x, \-\-keyid " hex
Smartcard or TPM private key object handle in hex format with an optional
0x prefix.
.TP
.BI "\-t, \-\-type " type
Type of input. One of \fIpriv\fR (private key), \fIrsa\fR (RSA private key),
\fIecdsa\fR (ECDSA private key), \fIpub\fR (public key), \fIpkcs10\fR (PKCS#10
certificate request), or \fIx509\fR (X.509 certificate), defaults to \fIpriv\fR.
.TP
.BI "\-f, \-\-outform " encoding
Encoding of the extracted public key. One of \fIder\fR (ASN.1 DER), \fIpem\fR
(Base64 PEM), \fIdnskey\fR (RFC 3110 DNS key), or \fIsshkey\fR (RFC 4253 SSH
key), defaults to \fIder\fR.
.
.SH "EXAMPLES"
.
Extract the public key from an RSA private key:
.PP
.EX
  pki --pub --in key.der > pub.der
.EE
.PP
Extract the public key from an X.509 certificate:
.PP
.EX
  pki --pub --in cert.der --type x509 > pub.der
.EE
.PP
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.SH "SEE ALSO"
.
.BR pki (1)