Handle private keys with lowercase hex digits in DEK-Info
Some tools, for example win-acme, create encrypted private keys in OpenSSL's traditional format containing lowercase hex digits in the IV part of the DEK-Info PEM header. These key files are accepted by OpenSSL. Prior to this patch, GnuTLS did reject these keys with GNUTLS_E_INVALID_REQUEST.
0001-Handle-private-keys-with-lowercase-hex-digits-in-DEK.patch
PS: I cannot send merge requests, the e-mail addresses generated by Gitlab are not in a format accepted by 'git send-email'