diff options
Diffstat (limited to 'doc/apps/cms.pod')
| -rw-r--r-- | doc/apps/cms.pod | 47 |
1 files changed, 44 insertions, 3 deletions
diff --git a/doc/apps/cms.pod b/doc/apps/cms.pod index 9a24082..4eaedbc 100644 --- a/doc/apps/cms.pod +++ b/doc/apps/cms.pod @@ -58,6 +58,7 @@ B<openssl> B<cms> [B<-secretkeyid id>] [B<-econtent_type type>] [B<-inkey file>] +[B<-keyopt name:parameter>] [B<-passin arg>] [B<-rand file(s)>] [B<cert.pem...>] @@ -322,8 +323,13 @@ verification was successful. =item B<-recip file> -the recipients certificate when decrypting a message. This certificate -must match one of the recipients of the message or an error occurs. +when decrypting a message this specifies the recipients certificate. The +certificate must match one of the recipients of the message or an error +occurs. + +When encrypting a message this option may be used multiple times to specify +each recipient. This form B<must> be used if customised parameters are +required (for example to specify RSA-OAEP). =item B<-keyid> @@ -382,6 +388,13 @@ private key must be included in the certificate file specified with the B<-recip> or B<-signer> file. When signing this option can be used multiple times to specify successive keys. +=item B<-keyopt name:opt> + +for signing and encryption this option can be used multiple times to +set customised parameters for the preceding key or certificate. It can +currently be used to set RSA-PSS for signing, RSA-OAEP for encryption +or to modify default parameters for ECDH. + =item B<-passin arg> the private key password source. For more information about the format of B<arg> @@ -509,6 +522,10 @@ The B<-compress> option. The B<-secretkey> option when used with B<-encrypt>. +The use of PSS with B<-sign>. + +The use of OAEP or non-RSA keys with B<-encrypt>. + Additionally the B<-EncryptedData_create> and B<-data_create> type cannot be processed by the older B<smime> command. @@ -589,6 +606,21 @@ Add a signer to an existing message: openssl cms -resign -in mail.msg -signer newsign.pem -out mail2.msg +Sign mail using RSA-PSS: + + openssl cms -sign -in message.txt -text -out mail.msg \ + -signer mycert.pem -keyopt rsa_padding_mode:pss + +Create encrypted mail using RSA-OAEP: + + openssl cms -encrypt -in plain.txt -out mail.msg \ + -recip cert.pem -keyopt rsa_padding_mode:oaep + +Use SHA256 KDF with an ECDH certificate: + + openssl cms -encrypt -in plain.txt -out mail.msg \ + -recip ecdhcert.pem -keyopt ecdh_kdf_md:sha256 + =head1 BUGS The MIME parser isn't very clever: it seems to handle most messages that I've @@ -614,7 +646,16 @@ No revocation checking is done on the signer's certificate. The use of multiple B<-signer> options and the B<-resign> command were first added in OpenSSL 1.0.0 +The B<keyopt> option was first added in OpenSSL 1.1.0 + +The use of B<-recip> to specify the recipient when encrypting mail was first +added to OpenSSL 1.1.0 + +Support for RSA-OAEP and RSA-PSS was first added to OpenSSL 1.1.0. + +The use of non-RSA keys with B<-encrypt> and B<-decrypt> was first added +to OpenSSL 1.1.0. -The -no_alt_chains options was first added to OpenSSL 1.0.1n and 1.0.2b. +The -no_alt_chains options was first added to OpenSSL 1.0.2b. =cut |
