C语言RSA算法程序 (Program for RSA Algorithm in C)//Program for RSA asymmetric cryptographic algorithm //for demonstration values are relatively small compared to practical application #include<stdio.h> #include<math.
RSA algorithm is a process of encrypting plain text in blocks, every block has a binary value lesser than some n number. The size of block should be less than log (n) or equal to log (n), public-key cryptosystem was implemented by RSA algorithm In this Journal we are going to...
if(CryptGenKey( hCryptProv, ENCRYPT_ALGORITHM, KEYLENGTH | CRYPT_EXPORTABLE, &hKey)) { _tprintf(TEXT("A session key has been created. \n")); } else { MyHandleError( TEXT("Error during CryptGenKey. \n"), GetLastError()); goto Exit_MyEncryptFile; } //--- // Get the handle to ...
SignPara.cbSize = sizeof(CRYPT_SIGN_MESSAGE_PARA); SignPara.dwMsgEncodingType = MY_ENCODING_TYPE; SignPara.pSigningCert = pSignerCertContext ; SignPara.HashAlgorithm.pszObjId = szOID_RSA_MD2; SignPara.HashAlgorithm.Parameters.cbData = 0; SignPara.pvHashAuxInfo = NULL;...
(lib,"advapi32")#defineKEYLENGTH 0x00800000#defineENCRYPT_ALGORITHM CALG_RC4#defineENCRYPT_BLOCK_SIZE 8boolMyEncryptFile( LPTSTR szSource, LPTSTR szDestination, LPTSTR szPassword);voidMyHandleError( LPTSTR psz,intnErrorNumber);int_tmain(intargc, _TCHAR* argv[]) {if(argc <3) { _tprintf(...
program, the definition of SIGNER_NAME// must be changed to the name of the subject of// a certificate that has access to a private key. That certificate// must have either the CERT_KEY_PROV_INFO_PROP_ID or// CERT_KEY_CONTEXT_PROP_ID property set for the context to// provide access...
("Unknown algorithm.\n");break;caseE_OUTOFMEMORY:printf("Out of memory.\n");break;caseERROR_INVALID_HANDLE:printf("The handle from verify signature is not valid."\"function.\n");break;caseERROR_INVALID_PARAMETER:printf("The parameter from verify signature ""is not valid.\n");break;...
RSA_PEM.cs文件不依赖任何文件,可以直接copy这个文件到你项目中用;通过FromPEM、ToPEM和FromXML、ToXML这两对方法,可以实现PEMPKCS#1、PKCS#8相互转换,PEM、XML的相互转换。 注:openssl rsa -in 私钥文件 -pubout导出的是PKCS#8格式公钥(用的比较多),openssl rsa -pubin -in PKCS#8公钥文件 -RSAPublicKey_...
pPubKeyStruc->aiKeyAlg= CALG_RSA_KEYX; BYTE *pbHash; DWORD cbHash; PCRYPT_KEY_PROV_INFO pData; CRYPT_HASH_BLOB KeyIdentifier; DWORD cbData;void*pvArg;// Pass through argument.cbHash=20;// define cbHash to the size of a SHA1// string- there is no need for a 2 pass// call ...
DSA(Digital Signature Algorithm,数字签名算法)相比较于RSA密钥,在SSH协议中拥有更广泛的应用。根据非对称加密体系的加密原则,通过生成公钥和私钥,实现密钥的安全交换,最终实现安全的会话全过程。 使用该命令进行配置时,如果DSA密钥已经存在,则系统将提示用户确认是否替换原有密钥。新产生的密钥对的命名方式为“设备名称...