其中,rsa_public_decrypt是RSA算法中的一个函数,它用于解密使用公钥加密过的数据。 1. rsa_public_decrypt函数的基本功能 rsa_public_decrypt函数的基本功能是使用RSA公钥对数据进行解密。在实际应用中,通常是由数据的发送方使用接收方的公钥对数据进行加密,然后发送给接收方,接收方再使用自己的私钥对数据进行解密。
RSA公钥加密算法作为一种典型的非对称加密算法,具有较高的安全性和广泛的应用范围。而rsa_public_decrypt函数则是RSA算法中实现公钥解密的一个重要函数。 了解rsa_public_decrypt函数的用法及其在实际应用中的作用,有助于更好地保护数据的安全。本文将对RSA算法进行简要介绍,并重点介绍rsa_public_decrypt函数的用法及其...
-1);if(keybio==NULL){return""; }//qDebug() << " - Read pubkey";rsa = PEM_read_bio_RSA_PUBKEY(keybio, &rsa,NULL,NULL);if(rsa==NULL){ qDebug() <<" - Invalid RSA key!!";return""; }//qDebug() << " - Decrypt string";intlen =RSA_public_decrypt(enc...
= NULL) { if(__cr_license_data_ != NULL) { free((void*)__cr_license_data_); } __cr_license_data_ = malloc(CR_LIC_LEN); if(RSA_public_decrypt(CR_LIC_LEN, lic_encoded, (unsigned char*)__cr_license_data_, r, RSA_PKCS1_PADDING) <= 0) { free((void*)__cr_license_da...
status = RSA_public_decrypt(uKeySize, signature, EM, pRsaKey, RSA_NO_PADDING); printbin("EM", EM, uKeySize); if (status != -1) { //Verify the data against the message with expecting max salt length from ssignature status = RSA_verify_PKCS1_PSS(pRsaKey, pDigest, EVP_sha1()...
I want to encrypt and decrypt using the OpenSSL API. But decrypt always fails after encrypt. I use RSA_set0_key for private key (n, e, d) setting, and RSA_private_encrypt is OK, but RSA_public_decrypt fails always. I wonder why it fails. Why does RSA_public_decrypt fail?
(unsigned char*)*outstr,rsa_ctx,RSA_PKCS1_PADDING); printf("\n\n RSA_public_decrypt:%d \n\n",num); break; default: break; } if(num == -1) { printf("Got error on enc/dec!\n"); perror("enc or dec:"); err: free(*outstr); *outstr = NULL; num = -1; } return num...
Subject: Re: RSA_public_decrypt(), and RSA_private_encrypt() Thank you, Matt for your quick reply. I have additional questions: I looked both links below:https://www.openssl.org/docs/crypto/EVP_PKEY_encrypt.htmlhttps://www.openssl.org/docs/crypto/EVP_PKEY_decrypt.htmlOne for encryption,...
1 #include <stdio.h> 2 #include <openssl/rsa.h> 3 #include <openssl/pem.h> 4 #...
Now, I have the RSA public key corresponding to that private key which was used to encrypt the hash. I want to decrypt the digital signature using the RSA public key so that it gives me the SHA-256 hash of the body of message that was sent by the server. I can later compare thi...