The EVP cipher routines are a high level interface to certain symmetric ciphers.
The EVP cipher routines are a high level interface to certain symmetric ciphers.
Questions tagged [evp-cipher]
69 questions
0
votes
1 answer
Decrypting data, using aes gcm with the openssl evp interface in IOS
I've got the following code for decrypting the data:
-(NSString*)_decrypte:(NSString*)encrypted
{
NSString *decrypted;
NSData *enc = [[NSData alloc]initWithBase64EncodedString:encrypted options:0];
int len = (int)[enc length];
Byte…
Terry
- 332
- 1
- 15
0
votes
1 answer
Go equivalent to OpenSSL EVP symmetric EVP_aes_256_cbc
I'm writing a Go script that will decrypt some legacy data that is encrypted with EVP_aes_256_cbc and an RSA public key.
In C this would be something like:
key_size = EVP_OpenInit(&ctx, EVP_aes_256_cbc(), evp_key, eklen, iv,…
oliverseal
- 660
- 8
- 15
0
votes
1 answer
OpenSSL EVP_DecryptFinal_ex generating the garbage at the end of the output buffer
I am decrypting some data with openssl functions and i have some problems with the final result of the decryption.
EVP_DecryptInit_ex(ctx, EVP_aes_192_cbc(), NULL, myKey, myVector);
int iPos = 0;
EVP_DecryptUpdate(ctx, decryptedData,…
Vanya
- 411
- 1
- 5
- 21
0
votes
1 answer
EVP_DecryptFinal in OpenSSL
I am working on an OpenSSL project. While using the encryption and decryption functions under EVP. EVP_Decrypt_Final is not showing an error but after every OP_SIZE there is 8 bytes of extra data coming in the decrypted file. I used the programs…
0
votes
0 answers
0
votes
1 answer
RSA encryption using public key from .pem file
I am using RSA_public_encrypt function to send the encrypted data to socket. I am reading the public key from .PEM file using "pkey = PEM_read_PUBKEY(f, NULL, NULL, NULL);" function.
'pkey' retrieved from above function is of type EVP_PKEY* which…
Andrew
- 71
- 2
- 5
-1
votes
1 answer
Error while printing values of EVP_PKEY_CTX structure
In the tester side, I'm trying to print the value of structure evp_pkey_ctx_st but I'm getting error dereferencing pointer to incomplete type EVP_PKEY_CTX.
printf("\nOpearation:%d",ctx->operation);
Can anyone please guide me. Is this a feasible…
Asif Sayyad
- 23
- 6
-2
votes
1 answer
Trying to decrypt data using tpm private key with openssl API's But ossl_ctx is not compatible with EVP_KEY_decrypt_init(ctx)
OSSL_STORE_CTX *ctx = OSSL_STORE_open(tpm_key_path, nullptr, nullptr, nullptr, nullptr);
OSSL_STORE_INFO *info;
while (!OSSL_STORE_eof(ctx)) { if ((info = OSSL_STORE_load(ctx)) == nullptr) { printf("Failed in OSSL_STORE_load : %d",res); } if ((key…
vidyadhar
- 1
- 1