tls_detect

Function is_encrypted

Source 
pub async fn is_encrypted<'a, R>(reader: &mut R, offset: usize) -> bool
where
    R: Read<'a>,
Expand description

Determines whether a byte slice contains encrypted data at a specified offset.

This function leverages get_encrypted_packet_length to analyze the provided byte slice, starting from the given offset, to assess if it contains an encrypted packet according to recognized SSL/TLS, GMSSL, and DTLS protocols. It effectively serves as a boolean helper to quickly identify encrypted data without needing to parse or understand the specifics of the encryption protocol.

§Arguments

  • buffer - A slice of bytes representing the buffer to be analyzed for encrypted data.
  • offset - The offset within buffer from which to start the analysis.

§Returns

true if the data at the specified offset is recognized as an encrypted packet, otherwise false. The determination is based on whether get_encrypted_packet_length returns a packet length greater than 0 or if it encounters an error (e.g., NotEnoughDataError or NotEncryptedError), in which case it will return false.