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 <span id="projectnumber">3.0.0</span>
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<div class="title">ecgroup.h File Reference</div> </div>
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<p>Elliptic curve group interface.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include "<a class="el" href="stdtypes_8h.html">epid/common/stdtypes.h</a>"</code><br />
<code>#include "<a class="el" href="errors_8h.html">epid/common/errors.h</a>"</code><br />
<code>#include "<a class="el" href="bignum_8h.html">epid/common/math/bignum.h</a>"</code><br />
<code>#include "<a class="el" href="finitefield_8h.html">epid/common/math/finitefield.h</a>"</code><br />
<code>#include "<a class="el" href="types_8h.html">epid/common/types.h</a>"</code><br />
</div><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:gac91c5a7623c17a868dd15b2e9aaf7159"><td class="memItemLeft" align="right" valign="top">
typedef struct <a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a></td></tr>
<tr class="memdesc:gac91c5a7623c17a868dd15b2e9aaf7159"><td class="mdescLeft"> </td><td class="mdescRight">Elliptic curve group over finite field. <br /></td></tr>
<tr class="separator:gac91c5a7623c17a868dd15b2e9aaf7159"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga85c1d5e106031b385a6e23e598ac98fa"><td class="memItemLeft" align="right" valign="top">
typedef struct <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a></td></tr>
<tr class="memdesc:ga85c1d5e106031b385a6e23e598ac98fa"><td class="mdescLeft"> </td><td class="mdescRight">Point on elliptic curve over finite field. <br /></td></tr>
<tr class="separator:ga85c1d5e106031b385a6e23e598ac98fa"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:gaf4e23677dd378ef2e0cf55df79cbdb62"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#gaf4e23677dd378ef2e0cf55df79cbdb62">NewEcGroup</a> (<a class="el" href="group___finite_field_primitives.html#gab281b24e336a8b3d7d90079d862d969e">FiniteField</a> const *ff, <a class="el" href="group___finite_field_primitives.html#ga6cff5c7c06b07a87442b810ccc0a86fa">FfElement</a> const *a, <a class="el" href="group___finite_field_primitives.html#ga6cff5c7c06b07a87442b810ccc0a86fa">FfElement</a> const *b, <a class="el" href="group___finite_field_primitives.html#ga6cff5c7c06b07a87442b810ccc0a86fa">FfElement</a> const *x, <a class="el" href="group___finite_field_primitives.html#ga6cff5c7c06b07a87442b810ccc0a86fa">FfElement</a> const *y, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> const *order, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> const *cofactor, <a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> **g)</td></tr>
<tr class="memdesc:gaf4e23677dd378ef2e0cf55df79cbdb62"><td class="mdescLeft"> </td><td class="mdescRight">Constructs a new EcGroup. <a href="group___ec_group_primitives.html#gaf4e23677dd378ef2e0cf55df79cbdb62">More...</a><br /></td></tr>
<tr class="separator:gaf4e23677dd378ef2e0cf55df79cbdb62"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gab7af276256c27610eda85ff432b846ea"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#gab7af276256c27610eda85ff432b846ea">DeleteEcGroup</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> **g)</td></tr>
<tr class="memdesc:gab7af276256c27610eda85ff432b846ea"><td class="mdescLeft"> </td><td class="mdescRight">Deletes a previously allocated EcGroup. <a href="group___ec_group_primitives.html#gab7af276256c27610eda85ff432b846ea">More...</a><br /></td></tr>
<tr class="separator:gab7af276256c27610eda85ff432b846ea"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga6417b0ce72ba96de00c329e322fec7fb"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#ga6417b0ce72ba96de00c329e322fec7fb">NewEcPoint</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> const *g, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> **p)</td></tr>
<tr class="memdesc:ga6417b0ce72ba96de00c329e322fec7fb"><td class="mdescLeft"> </td><td class="mdescRight">Creates a new EcPoint. <a href="group___ec_group_primitives.html#ga6417b0ce72ba96de00c329e322fec7fb">More...</a><br /></td></tr>
<tr class="separator:ga6417b0ce72ba96de00c329e322fec7fb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga8cb086d792bffb79b3ca07e6ca4ce0e7"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#ga8cb086d792bffb79b3ca07e6ca4ce0e7">DeleteEcPoint</a> (<a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> **p)</td></tr>
<tr class="memdesc:ga8cb086d792bffb79b3ca07e6ca4ce0e7"><td class="mdescLeft"> </td><td class="mdescRight">Deletes a previously allocated EcPoint. <a href="group___ec_group_primitives.html#ga8cb086d792bffb79b3ca07e6ca4ce0e7">More...</a><br /></td></tr>
<tr class="separator:ga8cb086d792bffb79b3ca07e6ca4ce0e7"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga2d433f567fa2419465a49604f4da21ad"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#ga2d433f567fa2419465a49604f4da21ad">ReadEcPoint</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> *g, void const *p_str, size_t strlen, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> *p)</td></tr>
<tr class="memdesc:ga2d433f567fa2419465a49604f4da21ad"><td class="mdescLeft"> </td><td class="mdescRight">Deserializes an EcPoint from a string. <a href="group___ec_group_primitives.html#ga2d433f567fa2419465a49604f4da21ad">More...</a><br /></td></tr>
<tr class="separator:ga2d433f567fa2419465a49604f4da21ad"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga4bb7d6691ffbb6e947c1068453e27fbd"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#ga4bb7d6691ffbb6e947c1068453e27fbd">WriteEcPoint</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> *g, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> const *p, void *p_str, size_t strlen)</td></tr>
<tr class="memdesc:ga4bb7d6691ffbb6e947c1068453e27fbd"><td class="mdescLeft"> </td><td class="mdescRight">Serializes an EcPoint to a string. <a href="group___ec_group_primitives.html#ga4bb7d6691ffbb6e947c1068453e27fbd">More...</a><br /></td></tr>
<tr class="separator:ga4bb7d6691ffbb6e947c1068453e27fbd"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga25c9013cc76907d73765eb7a96aa8c96"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#ga25c9013cc76907d73765eb7a96aa8c96">EcMul</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> *g, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> const *a, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> const *b, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> *r)</td></tr>
<tr class="memdesc:ga25c9013cc76907d73765eb7a96aa8c96"><td class="mdescLeft"> </td><td class="mdescRight">Multiplies two elements in an elliptic curve group. <a href="group___ec_group_primitives.html#ga25c9013cc76907d73765eb7a96aa8c96">More...</a><br /></td></tr>
<tr class="separator:ga25c9013cc76907d73765eb7a96aa8c96"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga01bf8d6fa60a2e445490966b3a06c270"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#ga01bf8d6fa60a2e445490966b3a06c270">EcExp</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> *g, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> const *a, <a class="el" href="struct_big_num_str.html">BigNumStr</a> const *b, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> *r)</td></tr>
<tr class="memdesc:ga01bf8d6fa60a2e445490966b3a06c270"><td class="mdescLeft"> </td><td class="mdescRight">Raises a point in an elliptic curve group to a power. <a href="group___ec_group_primitives.html#ga01bf8d6fa60a2e445490966b3a06c270">More...</a><br /></td></tr>
<tr class="separator:ga01bf8d6fa60a2e445490966b3a06c270"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaf3b6a548aa6f0d4f028a14feca251f57"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#gaf3b6a548aa6f0d4f028a14feca251f57">EcSscmExp</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> *g, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> const *a, <a class="el" href="struct_big_num_str.html">BigNumStr</a> const *b, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> *r)</td></tr>
<tr class="memdesc:gaf3b6a548aa6f0d4f028a14feca251f57"><td class="mdescLeft"> </td><td class="mdescRight">Software side-channel mitigated implementation of EcExp. <a href="group___ec_group_primitives.html#gaf3b6a548aa6f0d4f028a14feca251f57">More...</a><br /></td></tr>
<tr class="separator:gaf3b6a548aa6f0d4f028a14feca251f57"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gae96c38e004ccd2211290ad6e66415ec4"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#gae96c38e004ccd2211290ad6e66415ec4">EcMultiExp</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> *g, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> const **a, <a class="el" href="struct_big_num_str.html">BigNumStr</a> const **b, size_t m, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> *r)</td></tr>
<tr class="memdesc:gae96c38e004ccd2211290ad6e66415ec4"><td class="mdescLeft"> </td><td class="mdescRight">Multi-exponentiates elements in elliptic curve group. <a href="group___ec_group_primitives.html#gae96c38e004ccd2211290ad6e66415ec4">More...</a><br /></td></tr>
<tr class="separator:gae96c38e004ccd2211290ad6e66415ec4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga76d24378455eb96a3257fe8045c0993a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#ga76d24378455eb96a3257fe8045c0993a">EcMultiExpBn</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> *g, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> const **a, <a class="el" href="group___big_num_primitives.html#ga2bf153e27be2683f0fb26f0f7ff1f718">BigNum</a> const **b, size_t m, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> *r)</td></tr>
<tr class="memdesc:ga76d24378455eb96a3257fe8045c0993a"><td class="mdescLeft"> </td><td class="mdescRight">Multi-exponentiates elements in elliptic curve group. <a href="group___ec_group_primitives.html#ga76d24378455eb96a3257fe8045c0993a">More...</a><br /></td></tr>
<tr class="separator:ga76d24378455eb96a3257fe8045c0993a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga40e3431d3dbe8cf7a65ada7b7811cba4"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#ga40e3431d3dbe8cf7a65ada7b7811cba4">EcSscmMultiExp</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> *g, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> const **a, <a class="el" href="struct_big_num_str.html">BigNumStr</a> const **b, size_t m, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> *r)</td></tr>
<tr class="memdesc:ga40e3431d3dbe8cf7a65ada7b7811cba4"><td class="mdescLeft"> </td><td class="mdescRight">Software side-channel mitigated implementation of EcMultiExp. <a href="group___ec_group_primitives.html#ga40e3431d3dbe8cf7a65ada7b7811cba4">More...</a><br /></td></tr>
<tr class="separator:ga40e3431d3dbe8cf7a65ada7b7811cba4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga3f96c43d14d24de0f7a5e214aef64196"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#ga3f96c43d14d24de0f7a5e214aef64196">EcGetRandom</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> *g, <a class="el" href="group___epid_common.html#ga6119a2c0323a3fca9e502b24bc378c2c">BitSupplier</a> rnd_func, void *rnd_func_param, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> *r)</td></tr>
<tr class="memdesc:ga3f96c43d14d24de0f7a5e214aef64196"><td class="mdescLeft"> </td><td class="mdescRight">Generates a random element from an elliptic curve group. <a href="group___ec_group_primitives.html#ga3f96c43d14d24de0f7a5e214aef64196">More...</a><br /></td></tr>
<tr class="separator:ga3f96c43d14d24de0f7a5e214aef64196"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga4d0f32aede3066eae500241b387bd970"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#ga4d0f32aede3066eae500241b387bd970">EcInGroup</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> *g, void const *p_str, size_t strlen, <a class="el" href="stdtypes_8h.html#ad5c9d4ba3dc37783a528b0925dc981a0">bool</a> *in_group)</td></tr>
<tr class="memdesc:ga4d0f32aede3066eae500241b387bd970"><td class="mdescLeft"> </td><td class="mdescRight">Checks if a point is in an elliptic curve group. <a href="group___ec_group_primitives.html#ga4d0f32aede3066eae500241b387bd970">More...</a><br /></td></tr>
<tr class="separator:ga4d0f32aede3066eae500241b387bd970"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gadf83fa559585375faad9a8b1559249bc"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#gadf83fa559585375faad9a8b1559249bc">Epid11EcHash</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> *g, void const *msg, size_t msg_len, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> *r)</td></tr>
<tr class="memdesc:gadf83fa559585375faad9a8b1559249bc"><td class="mdescLeft"> </td><td class="mdescRight">Hashes an arbitrary message to an Intel(R) EPID 1.1 element in an elliptic curve group. <a href="group___ec_group_primitives.html#gadf83fa559585375faad9a8b1559249bc">More...</a><br /></td></tr>
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<tr class="memitem:gadc22ee07864a7ee681a881029b69d76a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#gadc22ee07864a7ee681a881029b69d76a">EcHash</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> *g, void const *msg, size_t msg_len, <a class="el" href="group___epid_types.html#ga5e450438f6f9a5eacd0cf5ce354ec890">HashAlg</a> hash_alg, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> *r)</td></tr>
<tr class="memdesc:gadc22ee07864a7ee681a881029b69d76a"><td class="mdescLeft"> </td><td class="mdescRight">Hashes an arbitrary message to an element in an elliptic curve group. <a href="group___ec_group_primitives.html#gadc22ee07864a7ee681a881029b69d76a">More...</a><br /></td></tr>
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<tr class="memitem:ga8a6114a48214a327d4ec04fd25e5940e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#ga8a6114a48214a327d4ec04fd25e5940e">EcMakePoint</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> *g, <a class="el" href="group___finite_field_primitives.html#ga6cff5c7c06b07a87442b810ccc0a86fa">FfElement</a> const *x, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> *r)</td></tr>
<tr class="memdesc:ga8a6114a48214a327d4ec04fd25e5940e"><td class="mdescLeft"> </td><td class="mdescRight">Sets an EcPoint variable to a point on a curve. <a href="group___ec_group_primitives.html#ga8a6114a48214a327d4ec04fd25e5940e">More...</a><br /></td></tr>
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<tr class="memitem:ga0b6d7a3398251e9352fb29ef4abef466"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#ga0b6d7a3398251e9352fb29ef4abef466">EcInverse</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> *g, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> const *p, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> *r)</td></tr>
<tr class="memdesc:ga0b6d7a3398251e9352fb29ef4abef466"><td class="mdescLeft"> </td><td class="mdescRight">Computes the additive inverse of an EcPoint. <a href="group___ec_group_primitives.html#ga0b6d7a3398251e9352fb29ef4abef466">More...</a><br /></td></tr>
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<tr class="memitem:gad3b3c63c48fa24e8dea07837b05bc061"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#gad3b3c63c48fa24e8dea07837b05bc061">EcIsEqual</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> *g, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> const *a, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> const *b, <a class="el" href="stdtypes_8h.html#ad5c9d4ba3dc37783a528b0925dc981a0">bool</a> *is_equal)</td></tr>
<tr class="memdesc:gad3b3c63c48fa24e8dea07837b05bc061"><td class="mdescLeft"> </td><td class="mdescRight">Checks if two EcPoints are equal. <a href="group___ec_group_primitives.html#gad3b3c63c48fa24e8dea07837b05bc061">More...</a><br /></td></tr>
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<tr class="memitem:ga9cf15b34bc4ff12e58b169dd989d8210"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group___error_codes.html#gafdb27c77c2c4b32c807e326a8a0da360">EpidStatus</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___ec_group_primitives.html#ga9cf15b34bc4ff12e58b169dd989d8210">EcIsIdentity</a> (<a class="el" href="group___ec_group_primitives.html#gac91c5a7623c17a868dd15b2e9aaf7159">EcGroup</a> *g, <a class="el" href="group___ec_group_primitives.html#ga85c1d5e106031b385a6e23e598ac98fa">EcPoint</a> const *p, <a class="el" href="stdtypes_8h.html#ad5c9d4ba3dc37783a528b0925dc981a0">bool</a> *is_identity)</td></tr>
<tr class="memdesc:ga9cf15b34bc4ff12e58b169dd989d8210"><td class="mdescLeft"> </td><td class="mdescRight">Checks if an EcPoint is the identity element. <a href="group___ec_group_primitives.html#ga9cf15b34bc4ff12e58b169dd989d8210">More...</a><br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Elliptic curve group interface. </p>
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