.TH SQ-CERTIFY "1" "JANUARY 2021" "0.24.0 (SEQUOIA-OPENPGP 1.0.0)" "USER COMMANDS" 5
.SH NAME
sq\-certify \-
Certifies a User ID for a Certificate
Using a certification a keyholder may vouch for the fact that another
certificate legitimately belongs to a user id. In the context of
emails this means that the same entity controls the key and the email
address. These kind of certifications form the basis for the Web Of
Trust.
This command emits the certificate with the new certification. The
updated certificate has to be distributed, preferably by sending it to
the certificate holder for attestation. See also "sq key
attest\-certification".
.SH SYNOPSIS
\fBsq certify\fR [FLAGS] [OPTIONS] <CERTIFIER\-KEY> <CERTIFICATE> <USERID>
.SH FLAGS
.TP
\fB\-h\fR, \fB\-\-help\fR
Prints help information
.TP
\fB\-B\fR, \fB\-\-binary\fR
Emits binary data
.TP
\fB\-l\fR, \fB\-\-local\fR
Makes the certification a local certification. Normally, local certifications are not exported.
.TP
\fB\-\-non\-revocable\fR
Marks the certification as being non\-revocable. That is, you cannot later revoke this certification. This should normally only be used with an expiration.
.SH OPTIONS
.TP
\fB\-o\fR, \fB\-\-output\fR FILE
Writes to FILE or stdout if omitted
.TP
\fB\-d\fR, \fB\-\-depth\fR TRUST_DEPTH
Sets the trust depth (sometimes referred to as the trust level). 0 means a normal certification of <CERTIFICATE, USERID>. 1 means CERTIFICATE is also a trusted introducer, 2 means CERTIFICATE is a meta\-trusted introducer, etc. The default is 0.
.TP
\fB\-a\fR, \fB\-\-amount\fR TRUST_AMOUNT
Sets the amount of trust. Values between 1 and 120 are meaningful. 120 means fully trusted. Values less than 120 indicate the degree of trust. 60 is usually used for partially trusted. The default is 120.
.TP
\fB\-r\fR, \fB\-\-regex\fR REGEX
Adds a regular expression to constrain what a trusted introducer can certify. The regular expression must match the certified User ID in all intermediate introducers, and the certified certificate. Multiple regular expressions may be specified. In that case, at least one must match.
.TP
\fB\-\-notation\fR NAME
Adds a notation to the certification. A user\-defined notation's name must be of the form "name@a.domain.you.control.org". If the notation's name starts with a !, then the notation is marked as being critical. If a consumer of a signature doesn't understand a critical notation, then it will ignore the signature. The notation is marked as being human readable.
.TP
\fB\-\-expires\fR TIME
Makes the certification expire at TIME (as ISO 8601). Use "never" to create certifications that do not expire.
.TP
\fB\-\-expires\-in\fR DURATION
Makes the certification expire after DURATION. Either "N[ymwd]", for N years, months, weeks, or days, or "never". [default: 5y]
.SH ARGS
.TP
CERTIFIER\-KEY
Creates the certificate using CERTIFIER\-KEY.
.TP
CERTIFICATE
Certifies CERTIFICATE.
.TP
USERID
Certifies USERID for CERTIFICATE.
.SH EXAMPLES
.TP
# Juliet certifies that Romeo controls romeo.pgp and romeo@example.org
\fB $ sq certify juliet.pgp romeo.pgp "<romeo@example.org>"\fR
.SH SEE ALSO
For the full documentation see <https://docs.sequoia\-pgp.org/sq/>.
.ad l
.nh
sq(1), sq\-armor(1), sq\-certify(1), sq\-dearmor(1), sq\-decrypt(1), sq\-encrypt(1), sq\-inspect(1), sq\-key(1), sq\-keyring(1), sq\-packet(1), sq\-sign(1), sq\-verify(1)
.SH AUTHORS
.P
.RS 2
.nf
Azul <azul@sequoia\-pgp.org>
Igor Matuszewski <igor@sequoia\-pgp.org>
Justus Winter <justus@sequoia\-pgp.org>
Kai Michaelis <kai@sequoia\-pgp.org>
Neal H. Walfield <neal@sequoia\-pgp.org>
Nora Widdecke <nora@sequoia\-pgp.org>
Wiktor Kwapisiewicz <wiktor@sequoia\-pgp.org>