Function parse_public_key_file 

pub fn parse_public_key_file(path: &str) -> Result<ParsedKey, SshKeyParseError>

Read and parse an OpenSSH public-key file (typically ending in .pub).

Errors

Returns SshKeyParseError::Io on filesystem failures, SshKeyParseError::Parse when the file’s contents are not a valid OpenSSH public key.