FM / man1

/opt/cpanel/ea-openssl11/share/man/man1/

/opt/cpanel/ea-openssl11/share/man/man1

Name	Size	Mode	Actions
asn1parse.1	11214	0644	edit dl rm
ca.1	33486	0644	edit dl rm
CA.pl.1	12373	0644	edit dl rm
ciphers.1	38212	0644	edit dl rm
cms.1	32720	0644	edit dl rm
crl.1	7683	0644	edit dl rm
crl2pkcs7.1	7444	0644	edit dl rm
c_rehash.1	8779	0644	edit dl rm
dgst.1	11905	0644	edit dl rm
dhparam.1	9322	0644	edit dl rm
dsa.1	10018	0644	edit dl rm
dsaparam.1	8006	0644	edit dl rm
ec.1	10897	0644	edit dl rm
ecparam.1	10201	0644	edit dl rm
enc.1	19927	0644	edit dl rm
engine.1	7354	0644	edit dl rm
errstr.1	5086	0644	edit dl rm
gendsa.1	7128	0644	edit dl rm
genpkey.1	16068	0644	edit dl rm
genrsa.1	8256	0644	edit dl rm
list.1	6502	0644	edit dl rm
nseq.1	6399	0644	edit dl rm
ocsp.1	24156	0644	edit dl rm
openssl-asn1parse.1	11214	0644	edit dl rm
openssl-ca.1	33486	0644	edit dl rm
openssl-ciphers.1	38212	0644	edit dl rm
openssl-cms.1	32720	0644	edit dl rm
openssl-crl.1	7683	0644	edit dl rm
openssl-crl2pkcs7.1	7444	0644	edit dl rm
openssl-c_rehash.1	8779	0644	edit dl rm
openssl-dgst.1	11905	0644	edit dl rm
openssl-dhparam.1	9322	0644	edit dl rm
openssl-dsa.1	10018	0644	edit dl rm
openssl-dsaparam.1	8006	0644	edit dl rm
openssl-ec.1	10897	0644	edit dl rm
openssl-ecparam.1	10201	0644	edit dl rm
openssl-enc.1	19927	0644	edit dl rm
openssl-engine.1	7354	0644	edit dl rm
openssl-errstr.1	5086	0644	edit dl rm
openssl-gendsa.1	7128	0644	edit dl rm
openssl-genpkey.1	16068	0644	edit dl rm
openssl-genrsa.1	8256	0644	edit dl rm
openssl-list.1	6502	0644	edit dl rm
openssl-nseq.1	6399	0644	edit dl rm
openssl-ocsp.1	24156	0644	edit dl rm
openssl-passwd.1	7352	0644	edit dl rm
openssl-pkcs7.1	7278	0644	edit dl rm
openssl-pkcs8.1	16034	0644	edit dl rm
openssl-pkcs12.1	18334	0644	edit dl rm
openssl-pkey.1	9026	0644	edit dl rm
openssl-pkeyparam.1	6327	0644	edit dl rm
openssl-pkeyutl.1	16256	0644	edit dl rm
openssl-prime.1	5513	0644	edit dl rm
openssl-rand.1	6842	0644	edit dl rm
openssl-rehash.1	8779	0644	edit dl rm
openssl-req.1	30494	0644	edit dl rm
openssl-rsa.1	10672	0644	edit dl rm
openssl-rsautl.1	10959	0644	edit dl rm
openssl-sess_id.1	9068	0644	edit dl rm
openssl-smime.1	23616	0644	edit dl rm
openssl-speed.1	7193	0644	edit dl rm
openssl-spkac.1	8737	0644	edit dl rm
openssl-srp.1	5937	0644	edit dl rm
openssl-storeutl.1	7664	0644	edit dl rm
openssl-s_client.1	37156	0644	edit dl rm
openssl-s_server.1	35125	0644	edit dl rm
openssl-s_time.1	12391	0644	edit dl rm
openssl-ts.1	28702	0644	edit dl rm
openssl-tsget.1	11436	0644	edit dl rm
openssl-verify.1	34027	0644	edit dl rm
openssl-version.1	5485	0644	edit dl rm
openssl-x509.1	38500	0644	edit dl rm
openssl.1	21600	0644	edit dl rm
passwd.1	7352	0644	edit dl rm
pkcs7.1	7278	0644	edit dl rm
pkcs8.1	16034	0644	edit dl rm
pkcs12.1	18334	0644	edit dl rm
pkey.1	9026	0644	edit dl rm
pkeyparam.1	6327	0644	edit dl rm
pkeyutl.1	16256	0644	edit dl rm
prime.1	5513	0644	edit dl rm
rand.1	6842	0644	edit dl rm
rehash.1	8779	0644	edit dl rm
req.1	30494	0644	edit dl rm
rsa.1	10672	0644	edit dl rm
rsautl.1	10959	0644	edit dl rm
sess_id.1	9068	0644	edit dl rm
smime.1	23616	0644	edit dl rm
speed.1	7193	0644	edit dl rm
spkac.1	8737	0644	edit dl rm
srp.1	5937	0644	edit dl rm
storeutl.1	7664	0644	edit dl rm
s_client.1	37156	0644	edit dl rm
s_server.1	35125	0644	edit dl rm
s_time.1	12391	0644	edit dl rm
ts.1	28702	0644	edit dl rm
tsget.1	11436	0644	edit dl rm
verify.1	34027	0644	edit dl rm
version.1	5485	0644	edit dl rm
x509.1	38500	0644	edit dl rm

Edit: /opt/cpanel/ea-openssl11/share/man/man1/rsautl.1 (10959B)

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.\" ========================================================================
.\"
.IX Title "RSAUTL 1"
.TH RSAUTL 1 "2023-09-11" "1.1.1w" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
openssl\-rsautl, rsautl \- RSA utility
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
\&\fBopenssl\fR \fBrsautl\fR
[\fB\-help\fR]
[\fB\-in file\fR]
[\fB\-out file\fR]
[\fB\-inkey file\fR]
[\fB\-keyform PEM|DER|ENGINE\fR]
[\fB\-pubin\fR]
[\fB\-certin\fR]
[\fB\-sign\fR]
[\fB\-verify\fR]
[\fB\-encrypt\fR]
[\fB\-decrypt\fR]
[\fB\-rand file...\fR]
[\fB\-writerand file\fR]
[\fB\-pkcs\fR]
[\fB\-ssl\fR]
[\fB\-raw\fR]
[\fB\-hexdump\fR]
[\fB\-asn1parse\fR]
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The \fBrsautl\fR command can be used to sign, verify, encrypt and decrypt
data using the \s-1RSA\s0 algorithm.
.SH "OPTIONS"
.IX Header "OPTIONS"
.IP "\fB\-help\fR" 4
.IX Item "-help"
Print out a usage message.
.IP "\fB\-in filename\fR" 4
.IX Item "-in filename"
This specifies the input filename to read data from or standard input
if this option is not specified.
.IP "\fB\-out filename\fR" 4
.IX Item "-out filename"
Specifies the output filename to write to or standard output by
default.
.IP "\fB\-inkey file\fR" 4
.IX Item "-inkey file"
The input key file, by default it should be an \s-1RSA\s0 private key.
.IP "\fB\-keyform PEM|DER|ENGINE\fR" 4
.IX Item "-keyform PEM|DER|ENGINE"
The key format \s-1PEM, DER\s0 or \s-1ENGINE.\s0
.IP "\fB\-pubin\fR" 4
.IX Item "-pubin"
The input file is an \s-1RSA\s0 public key.
.IP "\fB\-certin\fR" 4
.IX Item "-certin"
The input is a certificate containing an \s-1RSA\s0 public key.
.IP "\fB\-sign\fR" 4
.IX Item "-sign"
Sign the input data and output the signed result. This requires
an \s-1RSA\s0 private key.
.IP "\fB\-verify\fR" 4
.IX Item "-verify"
Verify the input data and output the recovered data.
.IP "\fB\-encrypt\fR" 4
.IX Item "-encrypt"
Encrypt the input data using an \s-1RSA\s0 public key.
.IP "\fB\-decrypt\fR" 4
.IX Item "-decrypt"
Decrypt the input data using an \s-1RSA\s0 private key.
.IP "\fB\-rand file...\fR" 4
.IX Item "-rand file..."
A file or files containing random data used to seed the random number
generator.
Multiple files can be specified separated by an OS-dependent character.
The separator is \fB;\fR for MS-Windows, \fB,\fR for OpenVMS, and \fB:\fR for
all others.
.IP "[\fB\-writerand file\fR]" 4
.IX Item "[-writerand file]"
Writes random data to the specified \fIfile\fR upon exit.
This can be used with a subsequent \fB\-rand\fR flag.
.IP "\fB\-pkcs, \-oaep, \-ssl, \-raw\fR" 4
.IX Item "-pkcs, -oaep, -ssl, -raw"
The padding to use: PKCS#1 v1.5 (the default), PKCS#1 \s-1OAEP,\s0
special padding used in \s-1SSL\s0 v2 backwards compatible handshakes,
or no padding, respectively.
For signatures, only \fB\-pkcs\fR and \fB\-raw\fR can be used.
.IP "\fB\-hexdump\fR" 4
.IX Item "-hexdump"
Hex dump the output data.
.IP "\fB\-asn1parse\fR" 4
.IX Item "-asn1parse"
Parse the \s-1ASN.1\s0 output data, this is useful when combined with the
\&\fB\-verify\fR option.
.SH "NOTES"
.IX Header "NOTES"
\&\fBrsautl\fR because it uses the \s-1RSA\s0 algorithm directly can only be
used to sign or verify small pieces of data.
.SH "EXAMPLES"
.IX Header "EXAMPLES"
Sign some data using a private key:
.PP
.Vb 1
\& openssl rsautl \-sign \-in file \-inkey key.pem \-out sig
.Ve
.PP
Recover the signed data
.PP
.Vb 1
\& openssl rsautl \-verify \-in sig \-inkey key.pem
.Ve
.PP
Examine the raw signed data:
.PP
.Vb 1
\& openssl rsautl \-verify \-in sig \-inkey key.pem \-raw \-hexdump
\&
\& 0000 \- 00 01 ff ff ff ff ff ff\-ff ff ff ff ff ff ff ff   ................
\& 0010 \- ff ff ff ff ff ff ff ff\-ff ff ff ff ff ff ff ff   ................
\& 0020 \- ff ff ff ff ff ff ff ff\-ff ff ff ff ff ff ff ff   ................
\& 0030 \- ff ff ff ff ff ff ff ff\-ff ff ff ff ff ff ff ff   ................
\& 0040 \- ff ff ff ff ff ff ff ff\-ff ff ff ff ff ff ff ff   ................
\& 0050 \- ff ff ff ff ff ff ff ff\-ff ff ff ff ff ff ff ff   ................
\& 0060 \- ff ff ff ff ff ff ff ff\-ff ff ff ff ff ff ff ff   ................
\& 0070 \- ff ff ff ff 00 68 65 6c\-6c 6f 20 77 6f 72 6c 64   .....hello world
.Ve
.PP
The PKCS#1 block formatting is evident from this. If this was done using
encrypt and decrypt the block would have been of type 2 (the second byte)
and random padding data visible instead of the 0xff bytes.
.PP
It is possible to analyse the signature of certificates using this
utility in conjunction with \fBasn1parse\fR. Consider the self signed
example in certs/pca\-cert.pem . Running \fBasn1parse\fR as follows yields:
.PP
.Vb 1
\& openssl asn1parse \-in pca\-cert.pem
\&
\&    0:d=0  hl=4 l= 742 cons: SEQUENCE
\&    4:d=1  hl=4 l= 591 cons:  SEQUENCE
\&    8:d=2  hl=2 l=   3 cons:   cont [ 0 ]
\&   10:d=3  hl=2 l=   1 prim:    INTEGER           :02
\&   13:d=2  hl=2 l=   1 prim:   INTEGER           :00
\&   16:d=2  hl=2 l=  13 cons:   SEQUENCE
\&   18:d=3  hl=2 l=   9 prim:    OBJECT            :md5WithRSAEncryption
\&   29:d=3  hl=2 l=   0 prim:    NULL
\&   31:d=2  hl=2 l=  92 cons:   SEQUENCE
\&   33:d=3  hl=2 l=  11 cons:    SET
\&   35:d=4  hl=2 l=   9 cons:     SEQUENCE
\&   37:d=5  hl=2 l=   3 prim:      OBJECT            :countryName
\&   42:d=5  hl=2 l=   2 prim:      PRINTABLESTRING   :AU
\&  ....
\&  599:d=1  hl=2 l=  13 cons:  SEQUENCE
\&  601:d=2  hl=2 l=   9 prim:   OBJECT            :md5WithRSAEncryption
\&  612:d=2  hl=2 l=   0 prim:   NULL
\&  614:d=1  hl=3 l= 129 prim:  BIT STRING
.Ve
.PP
The final \s-1BIT STRING\s0 contains the actual signature. It can be extracted with:
.PP
.Vb 1
\& openssl asn1parse \-in pca\-cert.pem \-out sig \-noout \-strparse 614
.Ve
.PP
The certificate public key can be extracted with:
.PP
.Vb 1
\& openssl x509 \-in test/testx509.pem \-pubkey \-noout >pubkey.pem
.Ve
.PP
The signature can be analysed with:
.PP
.Vb 1
\& openssl rsautl \-in sig \-verify \-asn1parse \-inkey pubkey.pem \-pubin
\&
\&    0:d=0  hl=2 l=  32 cons: SEQUENCE
\&    2:d=1  hl=2 l=  12 cons:  SEQUENCE
\&    4:d=2  hl=2 l=   8 prim:   OBJECT            :md5
\&   14:d=2  hl=2 l=   0 prim:   NULL
\&   16:d=1  hl=2 l=  16 prim:  OCTET STRING
\&      0000 \- f3 46 9e aa 1a 4a 73 c9\-37 ea 93 00 48 25 08 b5   .F...Js.7...H%..
.Ve
.PP
This is the parsed version of an \s-1ASN1\s0 DigestInfo structure. It can be seen that
the digest used was md5. The actual part of the certificate that was signed can
be extracted with:
.PP
.Vb 1
\& openssl asn1parse \-in pca\-cert.pem \-out tbs \-noout \-strparse 4
.Ve
.PP
and its digest computed with:
.PP
.Vb 2
\& openssl md5 \-c tbs
\& MD5(tbs)= f3:46:9e:aa:1a:4a:73:c9:37:ea:93:00:48:25:08:b5
.Ve
.PP
which it can be seen agrees with the recovered value above.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fIdgst\fR\|(1), \fIrsa\fR\|(1), \fIgenrsa\fR\|(1)
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2000\-2017 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the OpenSSL license (the \*(L"License\*(R").  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file \s-1LICENSE\s0 in the source distribution or at
<https://www.openssl.org/source/license.html>.

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