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Add EcPoint::invert

This commit is contained in:
Steven Fackler 2016-11-14 19:44:20 +01:00
parent 4c60aa005d
commit e929e09216
2 changed files with 8 additions and 0 deletions
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1
openssl-sys/src/lib.rs
View File

@ -1410,6 +1410,7 @@ extern {
pub fn EC_POINT_new(group: *const EC_GROUP) -> *mut EC_POINT;
pub fn EC_POINT_add(group: *const EC_GROUP, r: *mut EC_POINT, a: *const EC_POINT, b: *const EC_POINT, ctx: *mut BN_CTX) -> c_int;
pub fn EC_POINT_mul(group: *const EC_GROUP, r: *mut EC_POINT, n: *const BIGNUM, q: *const EC_POINT, m: *const BIGNUM, ctx: *mut BN_CTX) -> c_int;
pub fn EC_POINT_invert(group: *const EC_GROUP, r: *mut EC_POINT, ctx: *mut BN_CTX) -> c_int;
pub fn EC_POINT_point2oct(group: *const EC_GROUP, p: *const EC_POINT, form: point_conversion_form_t, buf: *mut c_uchar, len: size_t, ctx: *mut BN_CTX) -> size_t;
pub fn EC_POINT_oct2point(group: *const EC_GROUP, p: *mut EC_POINT, buf: *const c_uchar, len: size_t, ctx: *mut BN_CTX) -> c_int;
pub fn EC_POINT_cmp(group: *const EC_GROUP, a: *const EC_POINT, b: *const EC_POINT, ctx: *mut BN_CTX) -> c_int;

7
openssl/src/ec_key.rs
View File

@ -147,6 +147,13 @@ impl EcPointRef {
}
}
/// Inverts `self`.
pub fn invert(&mut self, group: &EcGroupRef, ctx: &BigNumContextRef) -> Result<(), ErrorStack> {
unsafe {
cvt(ffi::EC_POINT_invert(group.as_ptr(), self.as_ptr(), ctx.as_ptr())).map(|_| ())
}
}
/// Serializes the point to a binary representation.
pub fn to_bytes(&self,
group: &EcGroupRef,