SRTP module
-----------

The SRTP module implements Secure RTP as defined in RFC 3711.
It provides a clean and user friendly API and can be used
as a standalone module.




Requirements and features:

RFC 3711                       yes
RFC 6188                       yes
Multiple Master keys:          no
Key derivation rate:           0 (zero)
Salting keys:                  yes
SRTP protection:               yes
SRTCP protection:              yes
Replay protection:             yes
Encryption:                    yes
Authentication:                yes
MKI (Master Key Identifier):   no
Authentication tag length:     32-bit and 80-bit
ROC (Roll Over Counter):       yes
Master key lifetime:           no
Multiple SSRCs:                yes
Performance:                   better than libsrtp

Cryptographic transforms:
- AES in Counter mode:         yes
- AES in f8-mode:              no
- NULL Cipher:                 no

Authentication transform:
- HMAC-SHA1:                   yes
- NULL auth:                   no

master key lengths:
- 128 bits                     yes
- 192 bits                     no
- 256 bits                     yes
