webrtc_srtp/
protection_profile.rs

1/// ProtectionProfile specifies Cipher and AuthTag details, similar to TLS cipher suite
2#[derive(Default, Debug, Clone, Copy)]
3#[repr(u8)]
4pub enum ProtectionProfile {
5    #[default]
6    Aes128CmHmacSha1_80 = 0x0001,
7    AeadAes128Gcm = 0x0007,
8}
9
10impl ProtectionProfile {
11    pub fn key_len(&self) -> usize {
12        match *self {
13            ProtectionProfile::Aes128CmHmacSha1_80 | ProtectionProfile::AeadAes128Gcm => 16,
14        }
15    }
16
17    pub fn salt_len(&self) -> usize {
18        match *self {
19            ProtectionProfile::Aes128CmHmacSha1_80 => 14,
20            ProtectionProfile::AeadAes128Gcm => 12,
21        }
22    }
23
24    pub fn auth_tag_len(&self) -> usize {
25        match *self {
26            ProtectionProfile::Aes128CmHmacSha1_80 => 10, //CIPHER_AES_CM_HMAC_SHA1AUTH_TAG_LEN,
27            ProtectionProfile::AeadAes128Gcm => 16,       //CIPHER_AEAD_AES_GCM_AUTH_TAG_LEN,
28        }
29    }
30
31    pub fn auth_key_len(&self) -> usize {
32        match *self {
33            ProtectionProfile::Aes128CmHmacSha1_80 => 20,
34            ProtectionProfile::AeadAes128Gcm => 0,
35        }
36    }
37}
webrtc_srtp/protection_profile.rs

webrtc_srtp/
protection_profile.rs
