MD5-SHA1 hash using CryptoAPI
问题 I have requirement of signing a data using MD5-SHA1 hash (MD5 hash and SHA1 hash of the data are combined and then signed). Primary requirement: MD5-SHA1 hash is provided by OpenSSL in some way that is not exposed. This hash is complete. Now my requirement is to sign this hash using Crypto API without hashing (only signing is required, not hashing again). Why CryptoAPI, not OpenSSL? Because, I am dealing with a certificate with non-exportable private key. Its private key can only be used by