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10 commits

Author SHA1 Message Date
Дилян Палаузов
378da62ccb srtp-utils: Add skeleton code to ease adding crypto suites
With this in place enabling an additional crypto suite
would only require two changes:
- Adding GStreamer capability mapping
- Add case in calls_srtp_parse_sdp_crypto_attribute()
2023-05-09 13:23:43 +00:00
Дилян Палаузов
267eecf049 srtp-utils: Add support for AES 256 bit crypto suites
As specified by RFC 6188.
2023-05-09 13:23:43 +00:00
Дилян Палаузов
8ca3597646 sdp-crypto: Include "ICM" in crypto suite enums
This indicates integer counter mode being used and
helps disambiguate additional crypto suites in the future.

Renamed CALLS_SRTP_SUITE_AES_128_SHA1_80 → CALLS_SRTP_SUITE_AES_128_ICM_SHA1_80
and CALLS_SRTP_SUITE_AES_128_SHA1_32 → CALLS_SRTP_SUITE_AES_128_ICM_SHA1_32
2023-05-09 13:23:43 +00:00
Дилян Палаузов
e6bfa6d933 srtp-utils: Reuse existing function to get expected key length
This avoids unnecessary and potentially error-prone duplication.
2023-05-09 13:23:43 +00:00
Дилян Палаузов
3db2c5dbb9 srtp-utils: Add implicit padding characters explicitly
Otherwise base64 decoding will give us a wrong key.
2023-05-09 13:23:43 +00:00
Дилян Палаузов
cfd371d72e srtp-utils: Strip padding characters in crypto attribute lines
https://www.rfc-editor.org/rfc/rfc4568.html#section-6.1 says:
 When base64 decoding the key and salt, padding characters (i.e.,
 one or two "=" at the end of the base64-encoded data) are discarded
 (see [RFC3548] for details).

https://www.rfc-editor.org/rfc/rfc3548#section-2.2 says:
 In some circumstances, the use of padding ("=") in base encoded data
 is not required nor used.  In the general case, when assumptions on
 size of transported data cannot be made, padding is required to yield
 correct decoded data.
2023-05-09 13:23:43 +00:00
Evangelos Ribeiro Tzaras
037d2c55f6 srtp-utils: Pass MKI length into error message
Fixes: 4937723541
2023-05-09 09:23:39 +00:00
Дилян Палаузов
8eb46de6f9 srtp-utils: Remove unused variable srtp_crypto_suites 2023-05-03 17:05:58 +02:00
Evangelos Ribeiro Tzaras
bb6b76107c build: Rename util.{c,h} to calls-util.{c,h}
"util" is a very generic name. This guards against accidentally
including similarly named headers from elsewhere.
2023-01-22 07:33:02 +00:00
Evangelos Ribeiro Tzaras
86a8f3ae22 Move provider plugins into a dedicated directory
Since we will introduce another type of plugin for the policy engine
we want to have each plugin type in separate directories.

We also have to adjust:

- plugin search directories
- po file location
- update paths for calls-doc target
2022-08-19 08:43:57 +00:00
Renamed from plugins/sip/calls-srtp-utils.c (Browse further)