如何从本机代码中的XML或模数/指数导入RSA公钥，以便与Windows CAPI的CryptVerifySignature一起使用？
在C＃中，我能够通过以下任一方式对公钥进行哈希验证：
// Import from raw modulus and exponent
using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider()) {
RSAParameters rsaKeyInfo = new RSAParameters {Modulus = modulus, Exponent = exponent};
rsa.ImportParameters(rsaKeyInfo);
return rsa.VerifyHash(hash, CryptoConfig.MapNameToOID("SHA512"), signature);
}
// Import from XML
using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider()) {
rsa.FromXmlString(xmlPublicKey);
return rsa.VerifyHash(hash, CryptoConfig.MapNameToOID("SHA512"), signature);
}
HCRYPTPROV hCryptProv;
HCRYPTHASH hHash;
CryptAcquireContext(&hCryptProv, NULL, NULL, PROV_RSA_FULL, 0);
CryptCreateHash(hCryptProv, CALG_SHA512, 0, 0, &hHash);
CryptHashData(hHash, pDataToHash, lenDataToHash, 0);
CryptVerifySignature(hHash, pSignature, sigLength, NULL, CRYPT_NOHASHOID);
CryptDestroyHash(hHash);
CryptReleaseContext(hCryptProv, 0);
没有找到相关结果
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弦砂牧扁
和：HCRYPTKEY hPublicKey; DWORD keyBlobLength = sizeof(BLOBHEADER)+sizeof(RSAPUBKEY)+modulusLengthInBytes; BYTE* keyBlob = malloc(keyBlobLength); BLOBHEADER* blobheader = (BLOBHEADER*) keyBlob; blobheader.bType = PUBLICKEYBLOB; blobheader.bVersion = CUR_BLOB_VERSION; blobheader.reserved = 0; blobheader.aiKeyAlg = CALG_RSA_KEYX; RSAPUBKEY* rsapubkey = (RSAPUBKEY*) (keyBlob + sizeof(BLOBHEADER)); rsapubkey.magic = 0x31415352; rsapubkey.bitlen = modulusLengthInBytes*8; rsapubkey.pubexp = 65537; // Or whatever your public exponent is. BYTE* modulus = keyBlob + sizeof(BLOBHEADER) + sizeof(RSAPUBKEY); memcpy(modulus, ..., modulusLengthInBytes); // NOTE: modulus must be in LSB form, // which is the opposite of what you // usually have. // .NET will give you the modulus in // MSB form, so you will have to // reverse the order of the bytes. CryptImportKey(hCryptProv, keyBlob, keyBlobLength, 0, 0, &hPublicKey);