BN_CTX *new_ctx =NULL;intret =-1;if(EC_POINT_is_at_infinity(group, a)) {returnEC_POINT_is_at_infinity(group, b) ?0:1; }if(EC_POINT_is_at_infinity(group, b))return1;if(a->Z_is_one && b->Z_is_one) {return((BN_cmp(&a->X, &b->X) ==0) && BN_cmp(&a->Y, &...
{if((O = EC_POINT_new(group)) ==NULL) { ret =-2;gotoerr; }if(!EC_POINT_mul(group, O,NULL, R, order, ctx)) { ret=-2;gotoerr; }if(!EC_POINT_is_at_infinity(group, O)) { ret =0;gotoerr; } }if((Q = EC_POINT_new(group)) ==NULL) { ret =-2;gotoerr; } n = ...
int EC_POINT_is_at_infinity (const EC_GROUP *group, const EC_POINT *point) int EC_POINT_is_on_curve (const EC_GROUP *group, const EC_POINT *point, BN_CTX *ctx) int EC_POINT_cmp (const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx) int EC_POINT_mak...
{ERR_FUNC(EC_F_EC_POINT_IS_AT_INFINITY), "EC_POINT_is_at_infinity"}, {ERR_FUNC(EC_F_EC_POINT_IS_ON_CURVE), "EC_POINT_is_on_curve"}, {ERR_FUNC(EC_F_EC_POINT_MAKE_AFFINE), "EC_POINT_make_affine"}, {ERR_FUNC(EC_F_EC_POINT_MUL), "EC_POINT_mul"}, {ERR_FUNC(EC_F_...
public boolean isValid() { return get().isValid(); } 代码示例来源:origin: com.madgag.spongycastle/core private ECPoint validate(ECPoint q) { if (q == null) { throw new IllegalArgumentException("point has null value"); } if (q.isInfinity()) { throw new IllegalArgumentException("point...
if the specified point W is at infinity. Remarks Creates a new ECPublicKeySpec with the specified parameter values. Java documentation for java.security.spec.ECPublicKeySpec.ECPublicKeySpec(java.security.spec.ECPoint, java.security.spec.ECParameterSpec). Portions of this page are modifications base...
IllegalArgumentException - if w is point at infinity, i.e. ECPoint.POINT_INFINITY Method Details getW public ECPoint getW() Returns the public point W. Returns: the public point W. getParams public ECParameterSpec getParams() Returns the associated elliptic curve domain parameters. Returns:...
if (point.isInfinity()) { return false; } /* * If possible, avoid normalizing the point (to save a modular inversion in the curve field). * * There are ~cofactor elements of the curve field that reduce (modulo the group order) to 'r'. * If the cofactor is known and small, we...
Provide feedback We read every piece of feedback, and take your input very seriously. Include my email address so I can be contacted Cancel Submit feedback Saved searches Use saved searches to filter your results more quickly Cancel Create saved search Sign in Sign up {...
TLS/SSL and crypto library. Contribute to openssl/openssl development by creating an account on GitHub.