代码讲解· int32_t GetOpensslPadding(int32_t padding, int32_t *opensslPadding) { switch (padding) { case HCF_ALG_NOPADDING: LOGI("set RSA_NO_PADDING"); *opensslPadding = RSA_NO_PADDING; return HCF_SUCCESS; case HCF_OPENSSL_RSA_PKCS1_PADDING: LOGI("set RSA_PKCS1_PADDING"); *opensslPadding = RSA_PKCS1_PADDING; return HCF_SUCCESS; case HCF_OPENSSL_RSA_PKCS1_OAEP_PADDING: LOGI("set RSA_PKCS1_OAEP_PADDING"); *opensslPadding = RSA_PKCS1_OAEP_PADDING; return HCF_SUCCESS; case HCF_OPENSSL_RSA_PSS_PADDING: LOGI("set RSA_PKCS1_PSS_PADDING"); *opensslPadding = RSA_PKCS1_PSS_PADDING; return HCF_SUCCESS; default: LOGE("Invalid framwork padding = %d", padding); return HCF_INVALID_PARAMS; } }

hart.zip_HCF_SPEC-307_hart_hart协议编程_trapcsr

HART_HCF_SPEC-054-FSK物理层规范_A_8V0.PDF

HART® COMMUNICATION FOUNDATION Document Number: HCF_SPEC-54 HART® FSK PHYSICAL LAYER SPECIFICATION Preface This preface is included for informational purposes. This revision 8.0 of the HART FSK...

New-WinRAR-ZIP-archive.zip_hcf_zip

标题 "New-WinRAR-ZIP-archive.zip_hcf_zip" 提示我们这是一个包含了多个编程语言程序的压缩文件，主要关注的是“最高公约数”（HCF）的概念，以及使用 ZIP 压缩格式通过 WinRAR 创建的档案。描述指出，这个压缩包包...

代码讲解 int32_t GetOpensslCurveId(int32_t keyLen, int32_t returnCurveId) { switch (keyLen) { case HCF_ALG_ECC_224: returnCurveId = NID_secp224r1; break; case HCF_ALG_ECC_256: returnCurveId = NID_X9_62_prime256v1; break; case HCF_ALG_ECC_384: returnCurveId = NID_secp384r1; break; case HCF_ALG_ECC_521: *returnCurveId = NID_secp521r1; break; default: LOGE("invalid key size."); return HCF_INVALID_PARAMS; } return HCF_SUCCESS; }

这是一个函数，名字为GetOpensslCurveId，它接受两个参数：keyLen和returnCurveId，都是32位的整数。这个函数的作用是根据传入的keyLen参数来返回一个椭圆曲线标识符，即returnCurveId。椭圆曲线标识符是OpenSSL库中...

代码讲解 int32_t GetRealPrimes(int32_t primesFlag) { switch (primesFlag) { case HCF_OPENSSL_PRIMES_2: LOGI("set primes 2"); return PRIMES_2; case HCF_OPENSSL_PRIMES_3: LOGI("set primes 3"); return PRIMES_3; case HCF_OPENSSL_PRIMES_4: LOGI("set primes 4"); return PRIMES_4; case HCF_OPENSSL_PRIMES_5: LOGI("set primes 5"); return PRIMES_5; default: LOGI("set default primes 2"); return PRIMES_2; } }

这段代码是一个函数，名为 GetRealPrimes，接受一个 int32_t 类型的参数 primesFlag，返回一个 int32_t 类型的值。函数中使用了 switch 语句，根据 primesFlag 的值进行不同的操作： - 如果 ...

讲解 int32_t GetRealPrimes(int32_t primesFlag) { switch (primesFlag) { case HCF_OPENSSL_PRIMES_2: LOGI("set primes 2"); return PRIMES_2; case HCF_OPENSSL_PRIMES_3: LOGI("set primes 3"); return PRIMES_3; case HCF_OPENSSL_PRIMES_4: LOGI("set primes 4"); return PRIMES_4; case HCF_OPENSSL_PRIMES_5: LOGI("set primes 5"); return PRIMES_5; default: LOGI("set default primes 2"); return PRIMES_2; } }

具体来说，函数通过switch语句判断primesFlag的值，如果是HCF_OPENSSL_PRIMES_2，则返回一个名为PRIMES_2的32位整数质数；如果是HCF_OPENSSL_PRIMES_3，则返回一个名为PRIMES_3的32位整数质数；如果是HCF_OPENSSL_...

代码讲解 static HcfResult SetDetailParams(HcfCipherRsaGeneratorSpiImpl impl) { CipherAttr attr = impl->attr; const EVP_MD md = GetOpensslDigestAlg(attr.md); if (md == NULL && attr.paddingMode == HCF_OPENSSL_RSA_PKCS1_OAEP_PADDING) { LOGE("md is NULL."); return HCF_INVALID_PARAMS; } const EVP_MD *mgf1md = GetOpensslDigestAlg(attr.mgf1md); if (mgf1md == NULL && attr.paddingMode == HCF_OPENSSL_RSA_PKCS1_OAEP_PADDING) { LOGE("mgf1md is NULL."); return HCF_INVALID_PARAMS; } int32_t opensslPadding = 0; if (GetOpensslPadding(attr.paddingMode, &opensslPadding) != HCF_SUCCESS) { LOGE("Padding is dismatch."); return HCF_INVALID_PARAMS; } if (EVP_PKEY_CTX_set_rsa_padding(impl->ctx, opensslPadding) != HCF_OPENSSL_SUCCESS) { LOGE("Cipher set padding fail."); HcfPrintOpensslError(); return HCF_ERR_CRYPTO_OPERATION; } if (attr.paddingMode == HCF_OPENSSL_RSA_PKCS1_OAEP_PADDING) { // set md and mgf1md if (EVP_PKEY_CTX_set_rsa_oaep_md(impl->ctx, md) != HCF_OPENSSL_SUCCESS || EVP_PKEY_CTX_set_rsa_mgf1_md(impl->ctx, mgf1md) != HCF_OPENSSL_SUCCESS) { LOGE("Set md or mgf1md fail"); HcfPrintOpensslError(); return HCF_ERR_CRYPTO_OPERATION; } } return HCF_SUCCESS; }

接下来，使用 GetOpensslPadding 函数获取了 attr.paddingMode 对应的 OpenSSL 填充模式，如果获取不到，则输出日志信息 "Padding is dismatch."，并返回 HCF_INVALID_PARAMS。之后，使用 EVP_PKEY_CTX_set...

代码讲解 static HcfResult CheckRsaCipherParams(CipherAttr *params) { int32_t opensslPadding = 0; if (params->algo != HCF_ALG_RSA) { LOGE("Cipher algo %u is invalid.", params->algo); return HCF_INVALID_PARAMS; } if (GetOpensslPadding(params->paddingMode, &opensslPadding) != HCF_SUCCESS) { LOGE("Cipher create without padding"); return HCF_INVALID_PARAMS; } if (params->paddingMode == HCF_ALG_NOPADDING && (GetOpensslDigestAlg(params->md) != NULL || GetOpensslDigestAlg(params->mgf1md) != NULL)) { LOGE("Nopadding don't need md or mgf1md"); return HCF_INVALID_PARAMS; } if (params->paddingMode == HCF_OPENSSL_RSA_PKCS1_OAEP_PADDING && GetOpensslDigestAlg(params->md) == NULL) { LOGE("md is NULL"); return HCF_INVALID_PARAMS; } if (params->paddingMode == HCF_OPENSSL_RSA_PKCS1_OAEP_PADDING && GetOpensslDigestAlg(params->mgf1md) == NULL) { LOGE("Use pkcs1_oaep padding, but mgf1md is NULL"); return HCF_INVALID_PARAMS; } return HCF_SUCCESS; }

这是一段 C 语言代码，函数名为 CheckRsaCipherParams，接受一个指向 CipherAttr 结构体的指针参数，返回一个 HcfResult 枚举类型的值。函数主要是用于检查 RSA 加密算法的参数是否合法。首先判断传入的算法类型...

static void SetKeyLength(HcfAlgParaValue value, void cipher) { CipherAttr cipherAttr = (CipherAttr *)cipher; cipherAttr->keySize = value; switch (value) { case HCF_ALG_AES_128: case HCF_ALG_AES_192: case HCF_ALG_AES_256: cipherAttr->algo = HCF_ALG_AES; break; case HCF_ALG_3DES_192: cipherAttr->algo = HCF_ALG_DES; break; case HCF_OPENSSL_RSA_512: case HCF_OPENSSL_RSA_768: case HCF_OPENSSL_RSA_1024: case HCF_OPENSSL_RSA_2048: case HCF_OPENSSL_RSA_3072: case HCF_OPENSSL_RSA_4096: case HCF_OPENSSL_RSA_8192: cipherAttr->algo = HCF_ALG_RSA; break; default: LOGE("Invalid algo %u.", value); break; } }代码解析

在代码中，HCF_ALG_AES_128、HCF_ALG_AES_192、HCF_ALG_AES_256、HCF_ALG_3DES_192、HCF_OPENSSL_RSA_512、HCF_OPENSSL_RSA_768、HCF_OPENSSL_RSA_1024、HCF_OPENSSL_RSA_2048、HCF_OPENSSL_RSA_3072、HCF_OPENSSL_...

代码讲解 const EVP_MD *GetOpensslDigestAlg(uint32_t alg) { switch (alg) { case HCF_OPENSSL_DIGEST_NONE: return NULL; case HCF_OPENSSL_DIGEST_MD5: LOGI("set EVP_md5"); return EVP_md5(); case HCF_OPENSSL_DIGEST_SHA1: LOGI("set EVP_sha1"); return EVP_sha1(); case HCF_OPENSSL_DIGEST_SHA224: LOGI("set EVP_sha224"); return EVP_sha224(); case HCF_OPENSSL_DIGEST_SHA256: LOGI("set EVP_sha256"); return EVP_sha256(); case HCF_OPENSSL_DIGEST_SHA384: LOGI("set EVP_sha384"); return EVP_sha384(); case HCF_OPENSSL_DIGEST_SHA512: LOGI("set EVP_sha512"); return EVP_sha512(); default: LOGE("Invalid digest num is %u.", alg); return NULL; } }

这是一个函数，名字为GetOpensslDigestAlg，它的参数是一个32位的整数alg。这个函数的作用是根据传入的alg参数来返回一个常量指针类型的EVP_MD对象，这个对象是OpenSSL库中的消息摘要算法对象。函数内部使用了...

typedef enum { HCF_ALG_ECC_224 = 1, HCF_ALG_ECC_256, HCF_ALG_ECC_384, HCF_ALG_ECC_521, HCF_ALG_AES_128, HCF_ALG_AES_192, HCF_ALG_AES_256, HCF_ALG_3DES_192, HCF_ALG_MODE_NONE, HCF_ALG_MODE_ECB, HCF_ALG_MODE_CBC, HCF_ALG_MODE_CTR, HCF_ALG_MODE_OFB, HCF_ALG_MODE_CFB, HCF_ALG_MODE_CFB1, HCF_ALG_MODE_CFB8, HCF_ALG_MODE_CFB64, HCF_ALG_MODE_CFB128, HCF_ALG_MODE_CCM, HCF_ALG_MODE_GCM, HCF_ALG_NOPADDING, HCF_ALG_PADDING_PKCS5, HCF_ALG_PADDING_PKCS7, // rsa keysize HCF_OPENSSL_RSA_512, HCF_OPENSSL_RSA_768, HCF_OPENSSL_RSA_1024, HCF_OPENSSL_RSA_2048, HCF_OPENSSL_RSA_3072, HCF_OPENSSL_RSA_4096, HCF_OPENSSL_RSA_8192, // rsa cipher padding, HCF_OPENSSL_RSA_PKCS1_PADDING, HCF_OPENSSL_RSA_PKCS1_OAEP_PADDING, HCF_OPENSSL_RSA_PSS_PADDING, // digest HCF_OPENSSL_DIGEST_NONE, HCF_OPENSSL_DIGEST_MD5, HCF_OPENSSL_DIGEST_SHA1, HCF_OPENSSL_DIGEST_SHA224, HCF_OPENSSL_DIGEST_SHA256, HCF_OPENSSL_DIGEST_SHA384, HCF_OPENSSL_DIGEST_SHA512, // primes HCF_OPENSSL_PRIMES_2, HCF_OPENSSL_PRIMES_3, HCF_OPENSSL_PRIMES_4, HCF_OPENSSL_PRIMES_5, } HCF_ALG_PARA_VALUE; 结合上一个进行代码讲解

这段代码定义了一个枚举类型 HCF_ALG_PARA_VALUE，其中列举了多个常量，用于表示不同的参数值。这些参数值包括了一些加密算法和模式的名称，例如 HCF_ALG_ECC_224、HCF_ALG_AES_128、HCF_ALG_MODE_CBC ...

讲解代码 HcfAsyKeyGenerator *generator = nullptr; int32_t res = HcfAsyKeyGeneratorCreate(algName.c_str(), &generator); if (res != HCF_SUCCESS) { LOGE("create c generator fail."); return NapiGetNull(env); }

这段代码使用了 HcfAsyKeyGenerator 库来生成密钥。首先，将指针 generator 初始化为 nullptr。然后，调用 HcfAsyKeyGeneratorCreate 函数，该函数接受两个参数：algName 和 generator 的指针。algName 是一个字符串...

static void SetKeyLength(HcfAlgParaValue value, void attr) { SymKeyAttr keyAttr = (SymKeyAttr *)attr; switch (value) { case HCF_ALG_AES_128: keyAttr->algo = HCF_ALG_AES; keyAttr->keySize = AES_KEY_SIZE_128; break; case HCF_ALG_AES_192: keyAttr->algo = HCF_ALG_AES; keyAttr->keySize = AES_KEY_SIZE_192; break; case HCF_ALG_AES_256: keyAttr->algo = HCF_ALG_AES; keyAttr->keySize = AES_KEY_SIZE_256; break; case HCF_ALG_SM4_128: keyAttr->algo = HCF_ALG_SM4; keyAttr->keySize = SM4_KEY_SIZE_128; break; case HCF_ALG_3DES_192: keyAttr->algo = HCF_ALG_DES; keyAttr->keySize = DES_KEY_SIZE_192; break; default: break; } }代码解析

这段代码定义了一个名为 SetKeyLength 的函数，它的作用是根据给定的 HcfAlgParaValue 值设置 SymKeyAttr 结构体中的算法标识符和密钥长度。该函数接收两个参数，第一个参数是 HcfAlgParaValue 枚举类型的值，用于...

static HcfResult HcfSymmKeySpiCreate(int32_t keyLen, SymKeyImpl *symKey) { if ((keyLen == 0) || (symKey == NULL)) { LOGE("Invalid input parameter!"); return HCF_INVALID_PARAMS; } HcfResult res = RandomSymmKey(keyLen, &symKey->keyMaterial); if (res != HCF_SUCCESS) { LOGE("RandomSymmKey failed!"); return res; } return res; }代码解析

这段代码定义了一个名为 HcfSymmKeySpiCreate 的函数，用于创建对称密钥。该函数接收两个参数，分别是密钥长度 keyLen 和 SymKeyImpl 结构体指针 symKey。在函数的开头，该函数会先进行参数检查。如果 keyLen 为 0...

讲解代码 HcfResult HcfAsyKeyGeneratorCreate(const char *algoName, HcfAsyKeyGenerator **returnObj) { if ((!IsStrValid(algoName, HCF_MAX_ALGO_NAME_LEN)) || (returnObj == NULL)) { return HCF_INVALID_PARAMS; } HcfAsyKeyGenParams params = { 0 }; if (ParseAndSetParameter(algoName, ¶ms, ParseAsyKeyGenParams) != HCF_SUCCESS) { LOGE("Failed to parser parmas!"); return HCF_INVALID_PARAMS; } HcfAsyKeyGeneratorSpiCreateFunc createSpiFunc = FindAbility(¶ms); if (createSpiFunc == NULL) { return HCF_NOT_SUPPORT; } HcfAsyKeyGeneratorImpl returnGenerator = (HcfAsyKeyGeneratorImpl )HcfMalloc(sizeof(HcfAsyKeyGeneratorImpl), 0); if (returnGenerator == NULL) { LOGE("Failed to allocate returnGenerator memory!"); return HCF_ERR_MALLOC; } if (strcpy_s(returnGenerator->algoName, HCF_MAX_ALGO_NAME_LEN, algoName) != EOK) { LOGE("Failed to copy algoName!"); HcfFree(returnGenerator); return HCF_ERR_COPY; } HcfAsyKeyGeneratorSpi spiObj = NULL; int32_t res = HCF_SUCCESS; res = createSpiFunc(¶ms, &spiObj); if (res != HCF_SUCCESS) { LOGE("Failed to create spi object!"); HcfFree(returnGenerator); return res; } returnGenerator->base.base.destroy = DestroyAsyKeyGenerator; returnGenerator->base.base.getClass = GetAsyKeyGeneratorClass; returnGenerator->base.convertKey = ConvertKey; returnGenerator->base.generateKeyPair = GenerateKeyPair; returnGenerator->base.getAlgoName = GetAlgoName; returnGenerator->spiObj = spiObj; returnObj = (HcfAsyKeyGenerator *)returnGenerator; return HCF_SUCCESS; }

这段代码是 HcfAsyKeyGeneratorCreate 函数的实现代码。该函数的作用是创建一个 HcfAsyKeyGenerator 实例。函数的第一个参数是 algoName，它表示加密算法的名称。第二个参数是 returnObj，它是一个指向 ...

讲解 typedef struct { HCF_ALG_VALUE algo; HCF_ALG_PARA_VALUE keySize; HCF_ALG_PARA_VALUE mode; HCF_ALG_PARA_VALUE paddingMode; HCF_ALG_PARA_VALUE md; HCF_ALG_PARA_VALUE mgf1md; } CipherAttr;

这是一个结构体定义，名为 CipherAttr。它包含了以下成员变量： - algo：表示加密算法类型，类型为...其中 HCF_ALG_VALUE、HCF_ALG_PARA_VALUE 都是定义在该代码库中的枚举类型，用于表示不同的加密算法、参数类型等。

代码解析 static HcfResult GetSigAlgNameX509Openssl(HcfX509CertificateSpi self, HcfBlob outName) { if ((self == NULL) || (outName == NULL)) { LOGE("[GetSigAlgName openssl] The input data is null!"); return HCF_INVALID_PARAMS; } if (!IsClassMatch((HcfObjectBase )self, GetX509CertClass())) { LOGE("[GetSigAlgName openssl] Input wrong class type!"); return HCF_INVALID_PARAMS; } HcfOpensslX509Cert realCert = (HcfOpensslX509Cert )self; X509 x509 = realCert->x509; const X509_ALGOR alg; X509_get0_signature(NULL, &alg, x509); const ASN1_OBJECT oidObj; X509_ALGOR_get0(&oidObj, NULL, NULL, alg); char oidStr[OID_STR_MAX_LEN] = { 0 }; int32_t resLen = OBJ_obj2txt(oidStr, OID_STR_MAX_LEN, oidObj, 1); if ((resLen < 0) || (resLen >= OID_STR_MAX_LEN)) { LOGE("Failed to convert x509 object to text!"); CfPrintOpensslError(); return HCF_ERR_CRYPTO_OPERATION; } const char *algName = GetAlgorithmName(oidStr); if (algName == NULL) { return HCF_ERR_CRYPTO_OPERATION; } uint32_t len = strlen(algName) + 1; return DeepCopyDataToOut(algName, len, outName); }

该函数首先对传入的参数进行判空处理，如果输入数据为空，则返回 HCF_INVALID_PARAMS 错误码。接下来，该函数通过调用 IsClassMatch 函数判断传入的 self 对象是否是 HcfX509CertificateSpi 类型，如果不是则返回 ...

static char GetAlgoName(HcfSymKeyGeneratorSpiOpensslImpl impl) { char keySizeChar[MAX_KEY_STR_SIZE] = { 0 }; if (sprintf_s(keySizeChar, MAX_KEY_STR_SIZE, "%d", impl->attr.keySize) < 0) { LOGE("Invalid input parameter!"); return NULL; } char algoName = (char )HcfMalloc(MAX_KEY_STR_SIZE, 0); if (algoName == NULL) { LOGE("algoName malloc failed!"); return NULL; } HcfAlgValue type = impl->attr.algo; if (type == HCF_ALG_AES) { int32_t aesSize = strlen(AES_ALG_NAME); if (strcpy_s(algoName, MAX_KEY_STR_SIZE, AES_ALG_NAME) != EOK) { LOGE("aes algoName strcpy_s failed!"); goto clearup; } if (strcpy_s(algoName + aesSize, MAX_KEY_STR_SIZE - aesSize, keySizeChar) != EOK) { LOGE("aes algoName size strcpy_s failed!"); goto clearup; } } else if (type == HCF_ALG_SM4) { int32_t sm4Size = strlen(SM4_ALG_NAME); if (strcpy_s(algoName, MAX_KEY_STR_SIZE, SM4_ALG_NAME) != EOK) { LOGE("sm4 algoName strcpy_s failed!"); goto clearup; } if (strcpy_s(algoName + sm4Size, MAX_KEY_STR_SIZE - sm4Size, keySizeChar) != EOK) { LOGE("sm4 algoName size strcpy_s failed!"); goto clearup; } } else if (type == HCF_ALG_DES) { int32_t desSize = strlen(DES_ALG_NAME); if (strcpy_s(algoName, MAX_KEY_STR_SIZE, DES_ALG_NAME) != EOK) { LOGE("des algoName strcpy_s failed!"); goto clearup; } if (strcpy_s(algoName + desSize, MAX_KEY_STR_SIZE - desSize, keySizeChar) != EOK) { LOGE("des algoName size strcpy_s failed!"); goto clearup; } } else { LOGE("unsupport algo!"); goto clearup; } return algoName; clearup: HcfFree(algoName); return NULL; }简化代码

int32_t algSize; const char *algName; if (type == HCF_ALG_AES) { algName = AES_ALG_NAME; } else if (type == HCF_ALG_SM4) { algName = SM4_ALG_NAME; } else if (type == HCF_ALG_DES) { algName = ...

代码讲解 if (EVP_PKEY_CTX_set_rsa_oaep_md(impl->ctx, md) != HCF_OPENSSL_SUCCESS || EVP_PKEY_CTX_set_rsa_mgf1_md(impl->ctx, mgf1md) != HCF_OPENSSL_SUCCESS) { LOGE("Set md or mgf1md fail"); HcfPrintOpensslError(); return HCF_ERR_CRYPTO_OPERATION; }

这段代码使用了 OpenSSL 库中的 EVP_PKEY_CTX_set_rsa_oaep_md 和 EVP_PKEY_CTX_set_rsa_mgf1_md 函数，用于设置 RSA OAEP 填充模式中使用的哈希函数以及 MGF1 哈希函数。首先，函数接受了两个参数 md 和 mgf1md，...

typedef struct { const char* tag; HCF_ALG_PARA_TYPE paraType; HCF_ALG_PARA_VALUE paraValue; } HcfParaConfig; 代码解析

这段代码定义了一个名为 HcfParaConfig 的结构体，其中包含以下成员： - tag：const char* 类型，表示参数名称或标签。 - paraType：HCF_ALG_PARA_TYPE 类型，表示参数类型，可以是整型、浮点型、枚举型等。 - ...

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hart.zip_HCF_SPEC-307_hart_hart协议编程_trapcsr

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讲解代码 HcfAsyKeyGenerator *generator = nullptr; int32_t res = HcfAsyKeyGeneratorCreate(algName.c_str(), &generator); if (res != HCF_SUCCESS) { LOGE("create c generator fail."); return NapiGetNull(env); }

讲解 typedef struct { HCF_ALG_VALUE algo; HCF_ALG_PARA_VALUE keySize; HCF_ALG_PARA_VALUE mode; HCF_ALG_PARA_VALUE paddingMode; HCF_ALG_PARA_VALUE md; HCF_ALG_PARA_VALUE mgf1md; } CipherAttr;

代码讲解 if (EVP_PKEY_CTX_set_rsa_oaep_md(impl->ctx, md) != HCF_OPENSSL_SUCCESS || EVP_PKEY_CTX_set_rsa_mgf1_md(impl->ctx, mgf1md) != HCF_OPENSSL_SUCCESS) { LOGE("Set md or mgf1md fail"); HcfPrintOpensslError(); return HCF_ERR_CRYPTO_OPERATION; }

typedef struct { const char* tag; HCF_ALG_PARA_TYPE paraType; HCF_ALG_PARA_VALUE paraValue; } HcfParaConfig; 代码解析

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