min
/
boring2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Expose EC_GROUP_get0_generator as EcGroup::generator

This commit is contained in:
Mike Belopuhov 2019-06-13 02:55:15 +02:00
parent 89bd6d6168
commit 390d71f1e5
2 changed files with 25 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
openssl-sys/src/ec.rs
View File

@ -30,6 +30,8 @@ extern "C" {
ctx: *mut BN_CTX,
) -> c_int;
pub fn EC_GROUP_get0_generator(group: *const EC_GROUP) -> *const EC_POINT;
pub fn EC_GROUP_get_curve_name(group: *const EC_GROUP) -> c_int;
pub fn EC_GROUP_set_asn1_flag(key: *mut EC_GROUP, flag: c_int);

23
openssl/src/ec.rs
View File

@ -208,6 +208,18 @@ impl EcGroupRef {
unsafe { ffi::EC_GROUP_get_degree(self.as_ptr()) as u32 }
}
/// Returns the generator for the given curve as a [`EcPoint`].
///
/// OpenSSL documentation at [`EC_GROUP_get0_generator`]
///
/// [`EC_GROUP_get0_generator`]: https://www.openssl.org/docs/man1.1.0/man3/EC_GROUP_get0_generator.html
pub fn generator(&self) -> &EcPointRef {
unsafe {
let ptr = ffi::EC_GROUP_get0_generator(self.as_ptr());
EcPointRef::from_ptr(ptr as *mut _)
}
}
/// Places the order of the curve in the provided `BigNum`.
///
/// OpenSSL documentation at [`EC_GROUP_get_order`]
@ -889,6 +901,17 @@ mod test {
assert!(public_key.eq(&group, key.public_key(), &mut ctx).unwrap());
}
#[test]
fn generator() {
let group = EcGroup::from_curve_name(Nid::X9_62_PRIME256V1).unwrap();
let gen = group.generator();
let one = BigNum::from_u32(1).unwrap();
let mut ctx = BigNumContext::new().unwrap();
let mut ecp = EcPoint::new(&group).unwrap();
ecp.mul_generator(&group, &one, &mut ctx).unwrap();
assert!(ecp.eq(&group, gen, &mut ctx).unwrap());
}
#[test]
fn key_from_public_key() {
let group = EcGroup::from_curve_name(Nid::X9_62_PRIME256V1).unwrap();