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I just finish the my Delphi application upgrade to XE3 with Indy 10.6 and now needs support HTTPS protocol with SHA2-2048 cert. But I could not find any options for this algorithm and cert size.

I would like to know if Indy/OpenSSL would handle this algorithm automatically or need special configuration in source? Many thanks!!

Gloria
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  • Do you have a link to SHA2-2048? - "SHA2, not often used for now, is the successor of SHA1 and gathered 4 kinds of hash functions: SHA224, SHA256, SHA384 and SHA512" [link](https://www.tbs-certificates.co.uk/FAQ/en/sha256.html) – mjn Mar 23 '15 at 08:45
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    SHA2 was added to OpenSSL in 0.9.8o and 1.0.0a. I have no clue what SHA2-2048 is, though. Maybe you are thinking of a 2048-bit RSA key for one of the SHA2 hashes, like SHA256? A Google search shows examples of that combination when generating CSRs on the command-line. – Remy Lebeau Mar 23 '15 at 18:22

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Thanks for the explanation.

Below is cert information:

Signature Algorithm : sha256RSA

Public Key : RSA (2048bits)

Thumbprint Algorithm: sha1

I tried to load this cert in the Delphi application but got "Could not load the root certificate" error. But it worked with 1024bits cert.

Is it related to OpenSSL library?

Gloria
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