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opensslprivate-key

Generate EVP_PKEY from Private Key Bytes In PEM Format

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?

Solution

  • 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);