默认的sm2加密曲线是什么呢，是不是推荐曲线呢

[GJM]

• #define SM2_P "FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF"
• #define SM2_A "FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFC"
• #define SM2_B "28E9FA9E9D9F5E344D5A9E4BCF6509A7F39789F515AB8F92DDBCBD414D940E93"
• #define SM2_N "FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFF7203DF6B21C6052B53BBF40939D54123"
• #define SM2_G_X "32C4AE2C1F1981195F9904466A39C9948FE30BBFF2660BE1715A4589334C74C7"
• #define SM2_G_Y "BC3736A2F4F6779C59BDCEE36B692153D0A9877CC62A474002DF32E52139F0A0"

[dyseiya]

@mixuan 你好，这个issue你close了，搞清楚是不是推荐曲线了吗？