指定二进制数据转换非对称密钥对(C/C++)
以RSA、ECC、SM2为例，根据指定的非对称密钥二进制数据，生成非对称密钥对（OH_CryptoKeyPair），即将外部或存储的二进制数据转换为算法库的密钥对象，该对象可用于后续的加解密等操作。
针对非对称密钥的convertKey操作：
- 公钥需满足：ASN.1语法、X.509规范、DER编码格式。
- 私钥需满足：ASN.1语法、PKCS#8规范、DER编码格式。
在CMake脚本中链接相关动态库
target_link_libraries(entry PUBLIC libohcrypto.so)
指定二进制数据转换RSA密钥对
对应的算法规格请查看非对称密钥生成和转换规格：RSA。
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获取RSA公钥或私钥二进制数据，封装成Crypto_DataBlob。
公钥和私钥可单独传入，此处示例传入公钥。
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调用OH_CryptoAsymKeyGenerator_Create，指定字符串参数'RSA1024'，创建密钥算法为RSA1024、素数个数为2的非对称密钥生成器（OH_CryptoAsymKeyGenerator）。
生成RSA非对称密钥时，默认素数为2，此处省略了参数PRIMES_2。
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调用OH_CryptoAsymKeyGenerator_Convert，传入二进制密钥数据，生成非对称密钥对象（OH_CryptoKeyPair）。
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以下以生成RSA密钥对为例：
#include "CryptoArchitectureKit/crypto_common.h"#include "CryptoArchitectureKit/crypto_asym_key.h"#include "file.h"OH_Crypto_ErrCode doTestDataCovertAsymKey(){OH_CryptoAsymKeyGenerator *ctx = nullptr;OH_Crypto_ErrCode ret;ret = OH_CryptoAsymKeyGenerator_Create("RSA1024|PRIMES_2", &ctx);if (ret != CRYPTO_SUCCESS) {return ret;}uint8_t rsaDatablob[] = {48, 129, 159, 48, 13, 6, 9, 42, 134, 72, 134, 247, 13, 1, 1, 1, 5, 0,3, 129, 141, 0, 48, 129, 137, 2, 129, 129, 0, 235, 184, 151, 247, 130, 216, 140,187, 64, 124, 219, 137, 140, 184, 53, 137, 216, 105, 156, 141, 137, 165, 30, 80, 232,55, 96, 46, 23, 237, 197, 123, 121, 27, 240, 190, 14, 111, 237, 172, 67, 42, 47,164, 226, 248, 211, 157, 213, 194, 131, 109, 181, 41, 173, 217, 127, 252, 121, 126, 26,130, 55, 4, 134, 104, 73, 5, 132, 91, 214, 146, 232, 64, 99, 87, 33, 222, 155,159, 9, 59, 212, 144, 46, 183, 83, 89, 220, 189, 148, 13, 176, 5, 139, 156, 230,143, 16, 152, 79, 36, 8, 112, 40, 174, 35, 83, 82, 57, 137, 87, 123, 215, 99,199, 66, 131, 150, 31, 143, 56, 252, 2, 73, 41, 70, 159, 2, 3, 1, 0, 1};Crypto_DataBlob retBlob = {.data = rsaDatablob, .len = sizeof(rsaDatablob)};OH_CryptoKeyPair *dupKeyPair = nullptr;ret = OH_CryptoAsymKeyGenerator_Convert(ctx, CRYPTO_DER, &retBlob, nullptr, &dupKeyPair);if (ret != CRYPTO_SUCCESS) {OH_CryptoAsymKeyGenerator_Destroy(ctx);return ret;}OH_CryptoAsymKeyGenerator_Destroy(ctx);OH_CryptoKeyPair_Destroy(dupKeyPair);return ret;}
指定二进制数据转换ECC密钥对
对应的算法规格请查看非对称密钥生成和转换规格：ECC。
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获取ECC公钥或私钥二进制数据，封装成Crypto_DataBlob。
公钥和私钥可单独传入，此处示例传入公钥和私钥。
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调用OH_CryptoAsymKeyGenerator_Create，指定字符串参数'ECC256'，创建密钥算法为ECC、密钥长度为256位的非对称密钥生成器（OH_CryptoAsymKeyGenerator）。
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调用OH_CryptoAsymKeyGenerator_Convert，传入公钥二进制和私钥二进制，生成非对称密钥对象（OH_CryptoKeyPair）。
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以下以生成ECC密钥对为例：
#include "CryptoArchitectureKit/crypto_common.h"#include "CryptoArchitectureKit/crypto_asym_key.h"#include "file.h"OH_Crypto_ErrCode doAsymEccCovert(){OH_CryptoAsymKeyGenerator *ctx = nullptr;OH_Crypto_ErrCode ret;ret = OH_CryptoAsymKeyGenerator_Create("ECC256", &ctx);if (ret != CRYPTO_SUCCESS) {return ret;}uint8_t ecc224PubKeyBlobData[] = {48, 89, 48, 19, 6, 7, 42, 134, 72, 206, 61, 2, 1, 6, 8, 42, 134, 72, 206,61, 3, 1, 7, 3, 66, 0, 4, 157, 58, 248, 205, 95, 171, 229, 33, 116, 44, 192, 12, 115, 119, 84, 156,128, 56, 180, 246, 84, 43, 33, 244, 224, 221, 181, 154, 155, 222, 157, 124, 131, 217, 214, 134, 199,155, 61, 196, 203, 107, 13, 227, 121, 57, 199, 109, 220, 103, 55, 78, 148, 185, 226, 212, 162, 31,66, 201, 50, 129, 1, 156};uint8_t ecc224PriKeyBlobData[] = {48, 49, 2, 1, 1, 4, 32, 255, 121, 33, 196, 188, 159, 112, 149, 146, 107,243, 78, 152, 214, 12, 119, 87, 199, 207, 57, 116, 64, 150, 240, 121, 22, 88, 138, 196, 71, 70, 222,160, 10, 6, 8, 42, 134, 72, 206, 61, 3, 1, 7};Crypto_DataBlob pubBlob = {.data = ecc224PubKeyBlobData, .len = sizeof(ecc224PubKeyBlobData)};Crypto_DataBlob priBlob = {.data = ecc224PriKeyBlobData, .len = sizeof(ecc224PriKeyBlobData)};OH_CryptoKeyPair *dupKeyPair = nullptr;ret = OH_CryptoAsymKeyGenerator_Convert(ctx, CRYPTO_DER, &pubBlob, &priBlob, &dupKeyPair);if (ret != CRYPTO_SUCCESS) {OH_CryptoAsymKeyGenerator_Destroy(ctx);return ret;}OH_CryptoAsymKeyGenerator_Destroy(ctx);OH_CryptoKeyPair_Destroy(dupKeyPair);return ret;}
指定二进制数据转换SM2密钥对
对应的算法规格请查看非对称密钥生成和转换规格：SM2。
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获取SM2公钥或私钥二进制数据，封装成Crypto_DataBlob。
公钥和私钥可单独传入，此处示例传入公钥和私钥。
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调用OH_CryptoAsymKeyGenerator_Create，指定字符串参数'SM2_256'，创建密钥算法为SM2、密钥长度为256位的非对称密钥生成器（OH_CryptoAsymKeyGenerator）。
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调用OH_CryptoAsymKeyGenerator_Convert，传入公钥二进制和私钥二进制，生成非对称密钥对象（OH_CryptoKeyPair）。
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以生成SM2密钥对为例：
#include "CryptoArchitectureKit/crypto_common.h"#include "CryptoArchitectureKit/crypto_asym_key.h"#include "file.h"OH_Crypto_ErrCode doAsymSm2Covert(){OH_CryptoAsymKeyGenerator *ctx = nullptr;OH_CryptoKeyPair *dupKeyPair = nullptr;OH_Crypto_ErrCode ret;ret = OH_CryptoAsymKeyGenerator_Create("SM2_256", &ctx);if (ret != CRYPTO_SUCCESS) {return ret;}uint8_t sm2PubKeyBlobData[] = {48, 89, 48, 19, 6, 7, 42, 134, 72, 206, 61, 2, 1, 6, 8, 42,134, 72, 206, 61, 3, 1, 7, 3, 66, 0, 4, 157, 58, 248, 205, 95,171, 229, 33, 116, 44, 192, 12, 115, 119, 84, 156, 128, 56, 180, 246, 84,43, 33, 244, 224, 221, 181, 154, 155, 222, 157, 124, 131, 217, 214, 134, 199,155, 61, 196, 203, 107, 13, 227, 121, 57, 199, 109, 220, 103, 55, 78, 148,185, 226, 212, 162, 31, 66, 201, 50, 129, 1, 156};uint8_t sm2PriKeyBlobData[] = {48, 49, 2, 1, 1, 4, 32, 255, 121, 33, 196, 188, 159, 112, 149, 146, 107,243, 78, 152, 214, 12, 119, 87, 199, 207, 57, 116, 64, 150, 240, 121, 22, 88,138, 196, 71, 70, 222, 160, 10, 6, 8, 42, 134, 72, 206, 61, 3, 1, 7};Crypto_DataBlob pubBlob = {.data = sm2PubKeyBlobData, .len = sizeof(sm2PubKeyBlobData)};Crypto_DataBlob priBlob = {.data = sm2PriKeyBlobData, .len = sizeof(sm2PriKeyBlobData)};ret = OH_CryptoAsymKeyGenerator_Convert(ctx, CRYPTO_DER, &pubBlob, &priBlob, &dupKeyPair);if (ret != CRYPTO_SUCCESS) {OH_CryptoAsymKeyGenerator_Destroy(ctx);return ret;}OH_CryptoAsymKeyGenerator_Destroy(ctx);OH_CryptoKeyPair_Destroy(dupKeyPair);return ret;}