Hello,
I'm still working on porting libjwt
https://github.com/benmcollins/libjwt from openssl to gnutls.
The last problem I have is about ECDSA signatures. If I use a
GNUTLS_PK_EC private key to sign the data with gnutls_privkey_sign_data,
the libjwt unit tests fail.
I see in the openssl version of libjwt that after signing the data, that
it converts to a raw format of R/S, by decoding the signature:
https://github.com/benmcollins/libjwt/blob/master/libjwt/jwt-openssl.c#L264
For the verification procedure, it converts back the signature to ASN1:
https://github.com/benmcollins/libjwt/blob/master/libjwt/jwt-openssl.c#L386
Are there equivalent functions to encode/decode ECDSA signatures in GnuTLS?
Thanks in advance
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