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<?php /** * PHP implementation of SM2 cryptography algorithm * * @author Zhaohui Xue <xuezhaohui@126.com> * @copyright 2022 * @license https://www.apache.org/licenses/LICENSE-2.0 Apache License 2.0 */ /** * SM2 Elliptic Curve Digital Signature Algorithm (SM2-ECDSA) implementation */ class SM2ECDSA { // Elliptic curve parameters private $a = '0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFC00000000FFFFFFFFFFFFFFFC'
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