[openssl-users] Specify padding scheme with EVP_VerifyFinal
Dr. Stephen Henson
steve at openssl.org
Sat Feb 25 03:32:37 UTC 2017
On Thu, Feb 23, 2017, openssl at tuta.io wrote:
> Hi Michel,
> it looks like what I am looking for, but the software uses EVP_VerifyInit_ex which is a typedef for EVP_DigestInit_ex. How are those functions related to EVP_DigestVerifyInit? Can I use EVP_DigestVerify* functions along with EVP_Verify* functions? I must not break compatibility with the old implementation which needs to support arbitrary MD algorithms.
You have to use the EVP_Digest* functions if you want to change the RSA
padding mode (or other parameters). This is not supported in the older
Dr Stephen N. Henson. OpenSSL project core developer.
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