Network Security with OpenSSL

Name

smime

Synopsis

The smime command is used to encrypt, decrypt, sign, and verify S/MIME format messages. It supports versions of S/MIME up to v2 and can be used to S/MIME-enable mail readers that do not natively support it.

Options

-in filename

Specify the name of a file from which data will be read. If this option is omitted, stdin will be used by default.

-inform DER|PEM|SMIME

Specify the format of the input data. If this option is omitted, the default is to use SMIME. This option is ignored if data is being encrypted or signed.

-out filename

Specify the name of a file to which data will be written. If this option is omitted, stdout will be used by default.

-outform DER|PEM|SMIME

Specify the format of the output data. If this option is omitted, the default is to use SMIME. This option is ignored if data is being decrypted or verified.

-encrypt

Cause the input data to be encrypted.

-decrypt

Cause the input data to be decrypted.

-sign

Cause the input data to be signed.

-verify

Cause the input data to be verified.

-pk7out

Cause the input data to be written out as a PEM-encoded PKCS#7 structure.

-content filename

Specify the name of a file containing the detached content. This option is valid only when verifying data.

-text

Cause plaintext MIME headers to be added to the output if the input data is being encrypted or signed. Cause plaintext MIME headers to be stripped from the input if the input data is being decrypted or verified.

-CAfile filename

Specify the name of a file ...