Struct openssl::ec::EcGroupRef
source · pub struct EcGroupRef(/* private fields */);Expand description
Reference to EcGroup
Implementations§
source§impl EcGroupRef
impl EcGroupRef
sourcepub fn components_gfp(
&self,
p: &mut BigNumRef,
a: &mut BigNumRef,
b: &mut BigNumRef,
ctx: &mut BigNumContextRef,
) -> Result<(), ErrorStack>
pub fn components_gfp( &self, p: &mut BigNumRef, a: &mut BigNumRef, b: &mut BigNumRef, ctx: &mut BigNumContextRef, ) -> Result<(), ErrorStack>
Places the components of a curve over a prime field in the provided BigNums.
The components make up the formula y^2 mod p = x^3 + ax + b mod p.
This corresponds to EC_GROUP_get_curve_GFp.
sourcepub fn components_gf2m(
&self,
p: &mut BigNumRef,
a: &mut BigNumRef,
b: &mut BigNumRef,
ctx: &mut BigNumContextRef,
) -> Result<(), ErrorStack>
pub fn components_gf2m( &self, p: &mut BigNumRef, a: &mut BigNumRef, b: &mut BigNumRef, ctx: &mut BigNumContextRef, ) -> Result<(), ErrorStack>
Places the components of a curve over a binary field in the provided BigNums.
The components make up the formula y^2 + xy = x^3 + ax^2 + b.
In this form p relates to the irreducible polynomial. Each bit represents
a term in the polynomial. It will be set to 3 1s or 5 1s depending on
using a trinomial or pentanomial.
This corresponds to EC_GROUP_get_curve_GF2m.
sourcepub fn cofactor(
&self,
cofactor: &mut BigNumRef,
ctx: &mut BigNumContextRef,
) -> Result<(), ErrorStack>
pub fn cofactor( &self, cofactor: &mut BigNumRef, ctx: &mut BigNumContextRef, ) -> Result<(), ErrorStack>
Places the cofactor of the group in the provided BigNum.
This corresponds to EC_GROUP_get_cofactor.
sourcepub fn degree(&self) -> u32
pub fn degree(&self) -> u32
Returns the degree of the curve.
This corresponds to EC_GROUP_get_degree.
sourcepub fn order_bits(&self) -> u32
pub fn order_bits(&self) -> u32
Returns the number of bits in the group order.
This corresponds to EC_GROUP_order_bits.
sourcepub fn generator(&self) -> &EcPointRef
pub fn generator(&self) -> &EcPointRef
Returns the generator for the given curve as an EcPoint.
This corresponds to EC_GROUP_get0_generator.
sourcepub fn set_generator(
&mut self,
generator: EcPoint,
order: BigNum,
cofactor: BigNum,
) -> Result<(), ErrorStack>
pub fn set_generator( &mut self, generator: EcPoint, order: BigNum, cofactor: BigNum, ) -> Result<(), ErrorStack>
Sets the generator point for the given curve
This corresponds to EC_GROUP_set_generator.
sourcepub fn order(
&self,
order: &mut BigNumRef,
ctx: &mut BigNumContextRef,
) -> Result<(), ErrorStack>
pub fn order( &self, order: &mut BigNumRef, ctx: &mut BigNumContextRef, ) -> Result<(), ErrorStack>
Places the order of the curve in the provided BigNum.
This corresponds to EC_GROUP_get_order.
sourcepub fn set_asn1_flag(&mut self, flag: Asn1Flag)
pub fn set_asn1_flag(&mut self, flag: Asn1Flag)
Sets the flag determining if the group corresponds to a named curve or must be explicitly parameterized.
This defaults to EXPLICIT_CURVE in OpenSSL 1.0.1 and 1.0.2, but NAMED_CURVE in OpenSSL
1.1.0.
This corresponds to EC_GROUP_set_asn1_flag.
sourcepub fn asn1_flag(&self) -> Asn1Flag
pub fn asn1_flag(&self) -> Asn1Flag
Gets the flag determining if the group corresponds to a named curve.
This corresponds to EC_GROUP_get_asn1_flag.
sourcepub fn curve_name(&self) -> Option<Nid>
pub fn curve_name(&self) -> Option<Nid>
Returns the name of the curve, if a name is associated.
This corresponds to EC_GROUP_get_curve_name.