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PR #11705 switched Node away from using using OpenSSL's legacy EVP_Sign* and EVP_Verify* APIs. Instead, it computes a hash normally via EVP_Digest* and then uses EVP_PKEY_sign and EVP_PKEY_verify to verify the hash directly. This change corrects two problems: 1. The documentation still recommends the signature algorithm EVP_MD names of OpenSSL's legacy APIs. OpenSSL has since moved away from thosee, which is why ECDSA was strangely inconsistent. (This is why "ecdsa-with-SHA256" was missing.) 2. Node_SignFinal copied some code from EVP_SignFinal's internals. This is problematic for OpenSSL 1.1.0 and is missing a critical check that prevents pkey->pkey.ptr from being cast to the wrong type. To resolve this, remove the non-EVP_PKEY_sign codepath. This codepath is no longer necessary. PR #11705's verify half was already assuming all EVP_PKEYs supported EVP_PKEY_sign and EVP_PKEY_verify. Also, in the documentation, point users towards using hash function names which are more consisent. This avoids an ECDSA special-case and some strangeness around RSA-PSS ("RSA-SHA256" is the OpenSSL name of the sha256WithRSAEncryption OID which is not used for RSA-PSS). PR-URL: https://github.com/nodejs/node/pull/15024 Reviewed-By: Shigeki Ohtsu <ohtsu@ohtsu.org> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
