Generate EVP_PKEY from Private Key Bytes In PEM Format

Question

I have a private key bytes stored in PEM format, in a variable of Type LPSTR. i.e

LPSTR pPrivateKeyInPem;

Now I need to generate an EVP_PKEY using pPrivateKeyInPem, so that it can be loaded into an SSL_CTX Object using the SSL_CTX_use_PrivateKey() API of Openssl.

How can I do this?

Welcome to Stack Overflow! I edited your question to properly format your code - please see the editing help for more information on formatting. I would also recommend you to use smaller sentences for readability. Please edit to add anything necessary to identify the specific problem. Good luck! — Wtower, Dec 15 '15 at 08:01

Leśny Rumcajs · Accepted Answer · 2015-12-15T09:55:13.923

6

I'll omit conversion from LPSTR to char*, which is covered here: Convert lptstr to char*

For the OpenSSL part

BIO *mem;
mem = BIO_new_mem_buf(pkey, -1); //pkey is of type char*

key = PEM_read_bio_PrivateKey(mem, NULL, NULL, 0);

edited Dec 15 '15 at 09:55

answered Dec 15 '15 at 09:49

Leśny Rumcajs

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Generate EVP_PKEY from Private Key Bytes In PEM Format

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