HarmonyOS 鸿蒙Next 安全能力

可以通过密钥参数生成密钥对实现： //根据密钥参数生成sm2公钥（传入的是64字节即128位长度的十六进制字符串，首位为04标识符的130位十六进制字符串也可以）

export async function convertStrToPubKey(keyStr: string): Promise<cryptoFramework.PubKey> {
let pubKeyStr = keyStr.startsWith("04") ? keyStr.slice(2) : keyStr
let pkPart1 = pubKeyStr.slice(0, pubKeyStr.length / 2)
let pkPart2 = pubKeyStr.slice(pubKeyStr.length / 2)
let pk: cryptoFramework.Point = {
x: BigInt("0x" + pkPart1),
y: BigInt("0x" + pkPart2),
}
let pkSpec: cryptoFramework.ECCPubKeySpec = {
params: cryptoFramework.ECCKeyUtil.genECCCommonParamsSpec('NID_sm2'),
pk: pk,
algName: "SM2",
specType: cryptoFramework.AsyKeySpecType.PUBLIC_KEY_SPEC
}
let keypairGenerator = cryptoFramework.createAsyKeyGeneratorBySpec(pkSpec)

return await keypairGenerator.generatePubKey()
}