diff options
Diffstat (limited to 'openssl/src/nid.rs')
| -rw-r--r-- | openssl/src/nid.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/openssl/src/nid.rs b/openssl/src/nid.rs index 7c041236..78ffac96 100644 --- a/openssl/src/nid.rs +++ b/openssl/src/nid.rs @@ -1,6 +1,7 @@ //! A collection of numerical identifiers for OpenSSL objects. use ffi; use libc::c_int; +use std::ptr; /// A numerical identifier for an OpenSSL object. /// @@ -42,6 +43,20 @@ impl Nid { self.0 } + /// Returns the `Nid` of the digest algorithm associated with a signature ID. + /// + /// This corresponds to `OBJ_find_sigid_algs`. + pub fn digest_algorithm(&self) -> Option<Nid> { + unsafe { + let mut digest = 0; + if ffi::OBJ_find_sigid_algs(self.0, &mut digest, ptr::null_mut()) == 1 { + Some(Nid(digest)) + } else { + None + } + } + } + pub const UNDEF: Nid = Nid(ffi::NID_undef); pub const ITU_T: Nid = Nid(ffi::NID_itu_t); pub const CCITT: Nid = Nid(ffi::NID_ccitt); @@ -991,3 +1006,16 @@ impl Nid { pub const AES_192_CBC_HMAC_SHA1: Nid = Nid(ffi::NID_aes_192_cbc_hmac_sha1); pub const AES_256_CBC_HMAC_SHA1: Nid = Nid(ffi::NID_aes_256_cbc_hmac_sha1); } + +#[cfg(test)] +mod test { + use super::Nid; + + #[test] + fn signature_digest() { + assert_eq!( + Nid::SHA256WITHRSAENCRYPTION.digest_algorithm(), + Some(Nid::SHA256) + ); + } +} |