This module uses the functions of » OpenSSL for generation and verification of signatures and for sealing (encrypting) and opening (decrypting) data. OpenSSL offers many features that this module currently doesn’t support. Some of these may be added in the future.
* openssl_csr_export_to_file — Exports a CSR to a file
* openssl_csr_export — Exports a CSR as a string
* openssl_csr_get_public_key — Returns the public key of a CERT
* openssl_csr_get_subject — Returns the subject of a CERT
* openssl_csr_new — Generates a CSR
* openssl_csr_sign — Sign a CSR with another certificate (or itself) and generate a certificate
* openssl_error_string — Return openSSL error message
* openssl_free_key — Free key resource
* openssl_get_privatekey — Alias of openssl_pkey_get_private
* openssl_get_publickey — Alias of openssl_pkey_get_public
* openssl_open — Open sealed data
* openssl_pkcs12_export_to_file — Exports a PKCS#12 Compatible Certificate Store File
* openssl_pkcs12_export — Exports a PKCS#12 Compatible Certificate Store File to variable.
* openssl_pkcs12_read — Parse a PKCS#12 Certificate Store into an array
* openssl_pkcs7_decrypt — Decrypts an S/MIME encrypted message
* openssl_pkcs7_encrypt — Encrypt an S/MIME message
* openssl_pkcs7_sign — Sign an S/MIME message
* openssl_pkcs7_verify — Verifies the signature of an S/MIME signed message
* openssl_pkey_export_to_file — Gets an exportable representation of a key into a file
* openssl_pkey_export — Gets an exportable representation of a key into a string
* openssl_pkey_free — Frees a private key
* openssl_pkey_get_details — Returns an array with the key details
* openssl_pkey_get_private — Get a private key
* openssl_pkey_get_public — Extract public key from certificate and prepare it for use
* openssl_pkey_new — Generates a new private key
* openssl_private_decrypt — Decrypts data with private key
* openssl_private_encrypt — Encrypts data with private key
* openssl_public_decrypt — Decrypts data with public key
* openssl_public_encrypt — Encrypts data with public key
* openssl_seal — Seal (encrypt) data
* openssl_sign — Generate signature
* openssl_verify — Verify signature
* openssl_x509_check_private_key — Checks if a private key corresponds to a certificate
* openssl_x509_checkpurpose — Verifies if a certificate can be used for a particular purpose
* openssl_x509_export_to_file — Exports a certificate to file
* openssl_x509_export — Exports a certificate as a string
* openssl_x509_free — Free certificate resource
* openssl_x509_parse — Parse an X509 certificate and return the information as an array
* openssl_x509_read — Parse an X.509 certificate and return a resource identifier for it
http://be2.php.net/manual/en/book.openssl.php
