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give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
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nothing in troff, for use with C<>.
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Title "PKEY 1"
way too many mistakes in technical documents.
Standard preamble:
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..
.... Set up some character translations and predefined strings. \*(-- will
give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
double quote, and \*(R" will give a right double quote. \*(C+ will
give a nicer C++. Capital omega is used to do unbreakable dashes and
therefore won't be available. \*(C` and \*(C' expand to `' in nroff,
nothing in troff, for use with C<>.
.tr \(*W- . ds -- \(*W- . ds PI pi . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch . ds L" "" . ds R" "" . ds C` "" . ds C' "" 'br\} . ds -- \|\(em\| . ds PI \(*p . ds L" `` . ds R" '' . ds C` . ds C' 'br\}
Escape single quotes in literal strings from groff's Unicode transform.
If the F register is >0, we'll generate index entries on stderr for
titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
entries marked with X<> in POD. Of course, you'll have to process the
output yourself in some meaningful fashion.
Avoid warning from groff about undefined register 'F'.
.. . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} .\}
Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
Fear. Run. Save yourself. No user-serviceable parts.
. \" fudge factors for nroff and troff . ds #H 0 . ds #V .8m . ds #F .3m . ds #[ \f1 . ds #] .\} . ds #H ((1u-(\\\\n(.fu%2u))*.13m) . ds #V .6m . ds #F 0 . ds #[ \& . ds #] \& .\} . \" simple accents for nroff and troff . ds ' \& . ds ` \& . ds ^ \& . ds , \& . ds ~ ~ . ds / .\} . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' .\} . \" troff and (daisy-wheel) nroff accents . \" corrections for vroff . \" for low resolution devices (crt and lpr) \{\ . ds : e . ds 8 ss . ds o a . ds d- d\h'-1'\(ga . ds D- D\h'-1'\(hy . ds th \o'bp' . ds Th \o'LP' . ds ae ae . ds Ae AE .\} ========================================================================
Title "PKEY 1"
PKEY 1 "2017-01-26" "1.0.2k" "OpenSSL"
For nroff, turn off justification. Always turn off hyphenation; it makesway too many mistakes in technical documents.
"NAME"
pkey - public or private key processing tool
"SYNOPSIS"
Header "SYNOPSIS" \fBopenssl pkey
[-inform PEM|DER]
[-outform PEM|DER]
[-in filename]
[-passin arg]
[-out filename]
[-passout arg]
[-cipher]
[-text]
[-text_pub]
[-noout]
[-pubin]
[-pubout]
[-engine id]
"DESCRIPTION"
Header "DESCRIPTION" The pkey command processes public or private keys. They can be converted
between various forms and their components printed out.
"COMMAND OPTIONS"
Header "COMMAND OPTIONS" "-inform DER|PEM" 4
Item "-inform DER|PEM" This specifies the input format \s-1DER\s0 or \s-1PEM.\s0
"-outform DER|PEM" 4
Item "-outform DER|PEM" This specifies the output format, the options have the same meaning as the
\fB-inform option.
"-in filename" 4
Item "-in filename" This specifies the input filename to read a key from or standard input if this
option is not specified. If the key is encrypted a pass phrase will be
prompted for.
"-passin arg" 4
Item "-passin arg" the input file password source. For more information about the format of arg
see the \s-1PASS PHRASE ARGUMENTS\s0 section in openssl\|(1).
"-out filename" 4
Item "-out filename" This specifies the output filename to write a key to or standard output if this
option is not specified. If any encryption options are set then a pass phrase
will be prompted for. The output filename should not be the same as the input
filename.
"-passout password" 4
Item "-passout password" the output file password source. For more information about the format of arg
see the \s-1PASS PHRASE ARGUMENTS\s0 section in openssl\|(1).
"-cipher" 4
Item "-cipher" These options encrypt the private key with the supplied cipher. Any algorithm
name accepted by EVP_get_cipherbyname() is acceptable such as des3.
"-text" 4
Item "-text" prints out the various public or private key components in
plain text in addition to the encoded version.
"-text_pub" 4
Item "-text_pub" print out only public key components even if a private key is being processed.
"-noout" 4
Item "-noout" do not output the encoded version of the key.
"-pubin" 4
Item "-pubin" by default a private key is read from the input file: with this
option a public key is read instead.
"-pubout" 4
Item "-pubout" by default a private key is output: with this option a public
key will be output instead. This option is automatically set if
the input is a public key.
"-engine id" 4
Item "-engine id" specifying an engine (by its unique id string) will cause pkey
to attempt to obtain a functional reference to the specified engine,
thus initialising it if needed. The engine will then be set as the default
for all available algorithms.
"EXAMPLES"
Header "EXAMPLES" To remove the pass phrase on an \s-1RSA\s0 private key:
.Vb 1 openssl pkey -in key.pem -out keyout.pem .Ve
To encrypt a private key using triple \s-1DES:\s0
.Vb 1 openssl pkey -in key.pem -des3 -out keyout.pem .Ve
To convert a private key from \s-1PEM\s0 to \s-1DER\s0 format:
.Vb 1 openssl pkey -in key.pem -outform DER -out keyout.der .Ve
To print out the components of a private key to standard output:
.Vb 1 openssl pkey -in key.pem -text -noout .Ve
To print out the public components of a private key to standard output:
.Vb 1 openssl pkey -in key.pem -text_pub -noout .Ve
To just output the public part of a private key:
.Vb 1 openssl pkey -in key.pem -pubout -out pubkey.pem .Ve
"SEE ALSO"
Header "SEE ALSO" \fIgenpkey\|(1), rsa\|(1), pkcs8\|(1),
\fIdsa\|(1), genrsa\|(1), gendsa\|(1)