7 Commits (5d1dd11143cf9fc899881476a1898aecf42e95ae)

Author	SHA1	Message	Date
Ben Ford	33091c2659	AST-2022-001 - res_stir_shaken/curl: Limit file size and check start. ... Put checks in place to limit how much we will actually download, as well as a check for the data we receive at the start to ensure it begins with what we would expect a certificate to begin with. ASTERISK-29872 Change-Id: Ifd3c6b8bd52b8b6192a04166ccce4fc8a8000b46	4 years ago
Ben Ford	e0cbdfe063	STIR/SHAKEN: OPENSSL_free serial hex from openssl. ... We're getting the serial number of the certificate from openssl and freeing it with ast_free(), but it needs to be freed with OPENSSL_free() instead. Now we duplicate the string and free the one from openssl with OPENSSL_free(), which means we can still use ast_free() on the returned string. https://wiki.asterisk.org/wiki/display/AST/OpenSIPit+2021 Change-Id: Ia6e1a4028c1933a0e1d204b769ebb9f5a11f00ab	5 years ago
Ben Ford	5e6508b56f	STIR/SHAKEN: Fix certificate type and storage. ... During OpenSIPit, we found out that the public certificates must be of type X.509. When reading in public keys, we use the corresponding X.509 functions now. We also discovered that we needed a better naming scheme for the certificates since certificates with the same name would cause issues (overwriting certs, etc.). Now when we download a public certificate, we get the serial number from it and use that as the name of the cached certificate. The configuration option public_key_url in stir_shaken.conf has also been renamed to public_cert_url, which better describes what the option is for. https://wiki.asterisk.org/wiki/display/AST/OpenSIPit+2021 Change-Id: Ia00b20835f5f976e3603797f2f2fb19672d8114d	5 years ago
Alexander Traud	be54c7e9ea	res_stir_shaken: Include OpenSSL headers where used actually. ... This avoids the inclusion of the OpenSSL headers in the public header, which avoids one external library dependency in res_pjsip_stir_shaken. Change-Id: I6a07e2d81d2b5442e24e99b8cc733a99f881dcf4	5 years ago
Ben Ford	f506cc4896	res_stir_shaken: Add unit tests for signing and verification. ... Added two unit tests, one for signing and another for verifying. stir_shaken_sign checks to make sure that all the required parameters are passed in and then signs the actual payload. If a signature is produced and a payload returned as a result, the test passes. stir_shaken_verify takes the signature from a signed payload to verify. This unit test also verifies that all the required information is passed in, and then attempts to verify the signature. If verification is successful and a payload is returned, the test passes. Change-Id: I9fa43380f861ccf710cd0f6b6c102a517c86ea13	6 years ago
Ben Ford	9acf840f7c	res_stir_shaken: Implemented signature verification. ... There are a lot of moving parts in this patch, but the focus of it is on the verification of the signature using a public key located at the public key URL provided in the JSON payload. First, we check the database to see if we have already downloaded the key. If so, check to see if it has expired. If it has, redownload from the URL. If we don't have an entry in the database, just go ahead and download the public key. The expiration is tested each time we download the file. After that, read the public key from the file and use it to verify the signature. All sanity checking is done when the payload is first received, so the verification is complete once this point is reached. The XML has also been added since a new config option was added to general (curl_timeout). The maximum amount of time to wait for a download can be configured through this option, with a low value by default. Change-Id: I3ba4c63880493bf8c7d17a9cfca1af0e934d1a1c	6 years ago
Ben Ford	211bb8a79c	res_stir_shaken: Initial commit and reading private key. ... This commit sets up some of the initial framework for the module and adds a way to read the private key from the specified file, which will then be appended to the certificate object. This works fine for now, but eventually some other structure will likely need to be used to store all this information. Similarly, the caller_id_number is specified on the certificate config object, but in the end we will want that information to be tied to the certificate itself and read it from there. A method has been added that will retrieve the private key associated with the caller_id_number passed in. Tab completion for certificates and stores has also been added. Change-Id: Ic4bc1416fab5d6afe15a8e2d32f7ddd4e023295f	6 years ago