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PHP 8.0: NewFunctions: account for new OpenSSL CMS functions

• Added openssl_cms_encrypt() encrypts the message in the file with the
  certificates and outputs the result to the supplied file.
• Added openssl_cms_decrypt() that decrypts the S/MIME message in the file
  and outputs the results to the supplied file.
• Added openssl_cms_read() that exports the CMS file to an array of PEM
  certificates.
• Added openssl_cms_sign() that signs the MIME message in the file with
  a cert and key and output the result to the supplied file.
• Added openssl_cms_verify() that verifies that the data block is intact,
  the signer is who they say they are, and returns the certs of the signers.

Refs:

• https://wiki.php.net/rfc/add-cms-support
• https://github.com/php/php-src/blob/c0172aa2bdb9ea223c8491bdb300995b93a857a0/UPGRADING#L727-L736
• This PR adds support for CMS. php/php-src#5251
• php/php-src@8583b8a

Includes unit tests.

PHP 8.0: NewConstants: account for new OpenSSL CMS constants

Added Cryptographic Message Syntax (CMS) (RFC 5652) support composed of
functions for encryption, decryption, signing, verifying and reading. The
API is similar to the API for PKCS #7 functions with an addition of new
encoding constants: OPENSSL_ENCODING_DER, OPENSSL_ENCODING_SMIME and
OPENSSL_ENCODING_PEM.

And from the RFC:

The following analogs to PKCS#7 are also added:
OPENSSL_CMS_DETACHED
OPENSSL_CMS_TEXT
OPENSSL_CMS_NOINTERN
OPENSSL_CMS_NOVERIFY
OPENSSL_CMS_NOCERTS
OPENSSL_CMS_NOATTR
OPENSSL_CMS_BINARY
OPENSSL_CMS_NOSIGS

Refs:

• https://wiki.php.net/rfc/add-cms-support
• https://github.com/php/php-src/blob/c0172aa2bdb9ea223c8491bdb300995b93a857a0/UPGRADING#L603-L608
• This PR adds support for CMS. php/php-src#5251
• php/php-src@8583b8a

Includes unit tests.

Related to #809

> - Added openssl_cms_encrypt() encrypts the message in the file with the
>    certificates and outputs the result to the supplied file.
> - Added openssl_cms_decrypt() that decrypts the S/MIME message in the file
>    and outputs the results to the supplied file.
> - Added openssl_cms_read() that exports the CMS file to an array of PEM
>    certificates.
> - Added openssl_cms_sign() that signs the MIME message in the file with
>    a cert and key and output the result to the supplied file.
> - Added openssl_cms_verify() that verifies that the data block is intact,
>   the signer is who they say they are, and returns the certs of the signers.

Refs:
* https://wiki.php.net/rfc/add-cms-support
* https://github.com/php/php-src/blob/c0172aa2bdb9ea223c8491bdb300995b93a857a0/UPGRADING#L727-L736
* php/php-src#5251
* php/php-src@8583b8a

Includes unit tests.

> Added Cryptographic Message Syntax (CMS) (RFC 5652) support composed of
> functions for encryption, decryption, signing, verifying and reading. The
> API is similar to the API for PKCS #7 functions with an addition of new
> encoding constants: OPENSSL_ENCODING_DER, OPENSSL_ENCODING_SMIME and
> OPENSSL_ENCODING_PEM.

And from the RFC:
>  The following analogs to PKCS#7 are also added:
>  OPENSSL_CMS_DETACHED
>  OPENSSL_CMS_TEXT
>  OPENSSL_CMS_NOINTERN
>  OPENSSL_CMS_NOVERIFY
>  OPENSSL_CMS_NOCERTS
>  OPENSSL_CMS_NOATTR
>  OPENSSL_CMS_BINARY
>  OPENSSL_CMS_NOSIGS

Refs:
* https://wiki.php.net/rfc/add-cms-support
* https://github.com/php/php-src/blob/c0172aa2bdb9ea223c8491bdb300995b93a857a0/UPGRADING#L603-L608
* php/php-src#5251
* php/php-src@8583b8a

Includes unit test.

Account for changes introduced in PHP 8.0 #809

View reviewed changes