| -help | Print out a usage message. |
| -ciphercipher | The cipher to generate the key for. |
| -skeymgmtskeymgmt | To find out the name of the suitable symmetric key management, please refer to the output of the "openssl list -skey-managers" command. |
| -skeyoptopt:value | To obtain an existing opaque symmetric key or to generate a new one, key options are specified as opt:value. These options can't be used together with any options implying raw key either directly or indirectly. |
| -genkey | Generate a new opaque key object. |
| -propquerypropq | See "Provider Options" in openssl(1), provider(7), and property(7). |
NAME
openssl-skeyutl - opaque symmetric keys routines
SYNOPSIS
opensslskeyutl [-help] [-ciphercipher] [-skeymgmtskeymgmt] [-skeyoptopt:value] [-genkey] [-providername] [-provider-pathpath] [-provparam[name:]key=value] [-propquerypropq]
DESCRIPTION
Not all cipher implementations support keys as raw bytes. E.g. PKCS#11 tokens can store them internally without any option to get the raw byte representation.
This tool is designed for managing opaque symmetric keys.
OPTIONS
- -help
Print out a usage message.
- -ciphercipher
The cipher to generate the key for.
- -skeymgmtskeymgmt
To find out the name of the suitable symmetric key management, please refer to the output of the "openssl list -skey-managers" command.
- -skeyoptopt:value
To obtain an existing opaque symmetric key or to generate a new one, key options are specified as opt:value. These options can't be used together with any options implying raw key either directly or indirectly.
- -genkey
Generate a new opaque key object.
- -providername
- -provider-pathpath
- -provparam[name:]key=value
- -propquerypropq
See "Provider Options" in openssl(1), provider(7), and property(7).
SEE ALSO
openssl-enc(1), EVP_SKEY(3)
HISTORY
The skeyutl command was added in OpenSSL 3.5.
COPYRIGHT
Copyright 2025 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>.