Hey list, I am having difficulty trying to allocate an EVP_PKEY_CTX via EVP_PKEY_CTX_new(3) from a public key loaded via PEN_read_PUBKEY(3). The former fails with OpenSSL setting the following error: error:0308010C:digital envelope routines::unsupported See L135: https://pastebin.com/5p7MRGGK I also have another question regarding EVP_PKEY structures since OpenSSL 3.0. In OpenSSL 1.1.1 my RSA private and public keys were stored separately in RSA structures. Since OpenSSL 3.0, the RSA structure is deprecated along with all functions that accepted them as arguments. Everything now appears to use the higher level algorithm agnostic EVP_PKEY. How does one access just the private or public keys within an EVP_PKEY? The reason I ask is I would like to perform operations that verify that the public key is valid, the private key is valid, and the two mathematically correspond. Any help appreciated. -- Kip Warner OpenPGP signed/encrypted mail preferred https://www.thevertigo.com
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